1. A preparation process of a milk protein knitted health-care fabric is characterized by comprising the following steps:

uniformly stirring the milk protein spinning solution and the chitin to form a mixed spinning stock solution, standing and defoaming the mixed spinning stock solution, and then spinning to obtain a composite fiber; and adding the composite fibers into kapok fibers, blending to prepare composite yarns, and preparing the composite yarns into the milk protein knitted health-care fabric by using a knitting process.

2. The preparation process of the milk protein knitted health-care fabric as claimed in claim 1, wherein in the composite yarn, the blending ratio of the composite fibers to the kapok fibers is 65: 35.

3. The preparation process of the milk protein knitted health-care fabric according to claim 1, wherein the viscosity of the mixed spinning solution is 3.5-4.0 Pa-S.

4. The preparation process of the milk protein knitted health-care fabric according to claim 1, wherein the solid-liquid mass ratio of the chitin to the milk protein spinning solution is 1.5: 8.0.

5. The preparation process of the knitted health-care milk protein fabric as claimed in claim 1, wherein the stirring speed is 300-500 r/min.

6. The preparation process of the milk protein knitted health-care fabric according to claim 1, wherein the adopted weave structure of the knitting process is a bead and ground mesh weave.

7. The preparation process of the milk protein knitted health-care fabric as claimed in claim 1, wherein the composite fiber is soaked in the antistatic mixed solution for pretreatment for 30-35 minutes, then dried, and then blended with the kapok fiber to prepare the composite yarn.

8. The preparation process of the milk protein knitted health fabric according to claim 7, wherein the antistatic mixed solution is configured as follows: the mass of the antistatic agent is 0.1 percent of the dry mass of the composite fiber, and the mass of the water is 10-12 percent of the dry mass of the composite fiber.

9. The preparation process of the milk protein knitted health-care fabric according to claim 7, wherein in the drying process, the composite fibers are dried until the moisture regain is 15-17%, and then the composite yarns are spun.

10. A milk protein knitted health fabric produced by the process for producing the milk protein knitted health fabric according to any one of claims 1 to 9.

Background

With the continuous improvement of living standard of people, the pursuit of healthy, safe and green functional textiles becomes a development trend. The milk protein fiber is essence extracted from milk, contains abundant proteins and amino acids, and has biological health promotion function, natural and lasting antibacterial effect and deodorizing function. However, in the living environment of human beings, microorganisms such as mites exist in addition to various bacteria and fungi, and they can transmit various bacteria and viruses, and their metabolites are the main cause of allergic asthma. The human body continuously produces fluid secretion in the form of sweat stains, grease and desquamation of the skin, and an optimal breeding place is provided for organic microorganisms on the skin. An ideal environment where microorganisms can multiply between the fabric and the skin-moist and warm. The mites can be rapidly propagated in the environment, so that the cleanness of textiles cannot be guaranteed, bad smell caused by metabolism of microorganisms is generated, and even skin infection is caused. Therefore, the development of antibacterial and anti-mite textiles becomes especially important.

Disclosure of Invention

The invention aims to provide a preparation process of a milk protein knitted health-care fabric, which enables the effect of effective substances in raw materials to be exerted permanently, enables the raw materials to be mixed more uniformly and ensures the uniformity of the milk protein knitted health-care fabric.

The invention also aims to provide the milk protein knitted health-care fabric which has the effects of resisting bacteria and preventing mites.

The technical problem to be solved by the invention is realized by adopting the following technical scheme.

On one hand, the invention provides a preparation process of a milk protein knitted health-care fabric, which comprises the following steps:

uniformly stirring the milk protein spinning solution and the chitin to form a mixed spinning stock solution, standing and defoaming the mixed spinning stock solution, and then spinning to obtain composite fibers; the composite fiber is added into the kapok fiber to be blended to prepare composite yarn, and the composite yarn is prepared into the milk protein knitted health-care fabric by utilizing a knitting process.

On the other hand, the invention provides the milk protein knitted health-care fabric prepared by the preparation process.

The milk protein knitted health-care fabric and the preparation process thereof provided by the embodiment of the invention have the following beneficial effects:

the embodiment of the invention provides a preparation process of a milk protein knitted health-care fabric, which takes milk protein spinning solution, chitin and kapok as raw materials, wherein milk protein fiber is novel regenerated protein fiber and is a novel textile raw material integrating the advantages of natural fiber and synthetic fiber. The milk protein fiber has good affinity with human skin, contains various amino acids essential to human body, and has good lasting health promotion effect. The milk protein fiber can moisten skin, has health care and bacteriostasis functions, and is an ideal raw material for producing underwear. The milk protein contains natural moisturizing factors, can firmly hold water to keep the water in the skin, enables the skin to be soft and smooth, reduces wrinkles, and can realize 'milk bath' drenched by people. In addition, the milk protein fiber has the advantages of high strength of synthetic fiber, small shrinkage, mildew resistance and moth resistance, and also has the advantages of softness, moisture absorption, air permeability, good dyeing, strong color fastness and the like of natural fiber. Chitin has good moisture keeping, sorption, viscosity increasing, antibacterial, antistatic, film forming, combing, softening, cell activating, and cell repairing effects, and can slow down allergic skin. The composite fiber is added into milk protein spinning solution to be spun into composite fiber, so that the antibacterial property of the composite fiber can be improved, and the knitted fabric has the effect of promoting wound healing. Because the chitin is added into the milk protein spinning solution to be spun into the composite fiber, the chitin can be positioned in the composite fiber in the modes of inlaying, bonding and the like, can not be lost due to washing, and has long effective time for playing the role.

The kapok fiber belongs to a natural cellulose fiber and has the characteristics of hollow ultralight weight, good heat retention, natural antibiosis, mite prevention, mildew prevention, moisture absorption and moisture conduction and the like. The composite yarn is blended with the composite fiber to prepare the composite yarn, so that the antibacterial property of the composite yarn is improved, and the composite yarn has the anti-mite effect. And the antibacterial and anti-mite effects are permanent and are not reduced by washing times. And the composite yarns are all made of natural components, so that the use of chemical reagents with an anti-mite effect is avoided, and the harm of the chemical reagents to the environment and human bodies is reduced. And then the composite yarn is made into the milk protein knitted health-care fabric by using a knitting process, and the wearability of the knitted fabric is improved by using the characteristics of excellent air permeability, hygroscopicity, softness, comfortableness and the like of the knitted fabric.

On the other hand, the milk protein knitted health-care fabric prepared by the preparation process is provided by the embodiment of the invention. The milk protein knitted health-care fabric has the advantages of body bone, elasticity, good dimensional stability, good wear resistance, soft luster and light texture, gives people a feeling of elegance, luxury, pizzeria, unrestrained and elegant, and is soft and full in hand feeling, good in drapability, full and beautiful. Moreover, the garment made of the fabric has a certain anti-mite effect. The fabric meets the requirements of people on functionalization, health care and individuation of clothes, has good wearing comfort and ideal appearance effect, and has very wide application prospect in the textile industry.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to specific examples.

On one hand, the invention provides a preparation process of a milk protein knitted health-care fabric, which comprises the following steps: uniformly stirring the milk protein spinning solution and the chitin to form a mixed spinning stock solution, standing and defoaming the mixed spinning stock solution, and then spinning to obtain composite fibers; the composite fiber is added into the kapok fiber to be blended to prepare composite yarn, and the composite yarn is prepared into the milk protein knitted health-care fabric by utilizing a knitting process.

With the continuous improvement of living standard of people, people have more and more demands on comfortable, healthy and middle-high-end fabrics which accord with the characteristics of human ecological balance, in order to meet the demands of people on excessively pursuing the hand feeling of underwear, the fabric of the underwear uses a large amount of silicone oil softener in the after-treatment, but the hand feeling of the fabric after the silicone oil softening treatment is greatly improved, but the hydrophilicity of the fabric is poor, so that sweat and moisture of a human body can not be rapidly and effectively discharged, the temperature and humidity between the underwear and the skin of a wearer are increased, muggy feeling is generated, the breeding of germs is facilitated, and the health of the human body is influenced. In addition, various bacteria, fungi, mites and other microorganisms exist in the living environment of human beings, and under some special environments, the mass propagation of pathogenic bacteria and fungi can cause health and safety problems. Therefore, the invention utilizes the antibacterial and anti-mite yarn to weave the knitted fabric, and utilizes the characteristics of the knitted fabric to ensure that the knitted fabric has excellent wearability such as air permeability, softness, comfort and the like and also has the effects of resisting bacteria, preventing mites and the like.

The milk protein fiber is the essence extracted from milk, and is rich in protein and amino acid. The milk protein fiber is prepared by dewatering liquid milk, degreasing, adding a kneading agent to prepare milk slurry, preparing milk protein spinning solution suitable for a wet spinning process by using a new biological engineering technology, and then preparing the milk protein fiber. The milk fiber contains eighteen amino acids beneficial to human body, can promote metabolism of human body cells, and has good nutrition and protection effects on human skin. The milk fiber contains natural moisturizing factors and hydrophilic groups, can keep the moisture content of the skin, enables the skin to be soft and smooth, and can take care, maintenance and moistening effects on the skin of a human body at any time. The milk fiber has smooth and soft hand feeling and small fiber density, so that the clothes processed by the milk fiber have good wearing comfort. The milk fiber contains a large number of amino, hydroxyl, carboxyl and other hydrophilic groups, the cross section of the milk fiber is in an irregular dumbbell shape or a waist circle shape, gaps are fully distributed in the cross section, and a plurality of grooves are longitudinally arranged. The structure can rapidly absorb sweat of a human body and lead out the sweat through the grooves, so that the skin of the human body is kept in a dry and comfortable state. The fabric made of the milk fiber has the characteristics of lightness and thinness in summer, and can quickly absorb sweat emitted by the skin when a human body sweats, so that the skin is kept dry and breathable; the thick fabric made of the milk fibers in winter has micropores which can store heat emitted by a human body, effectively block air circulation, prevent cold air from invading and achieve the effect of keeping warm. The milk protein fiber also has biological health care function, natural and lasting bacteriostatic effect and deodorization function, is effective on escherichia coli, staphylococcus aureus and candida albicans, and has wide bacteriostatic rate of over 80 percent.

The chitin has obvious functions of promoting the growth of granulation tissue of wound, increasing healing speed, inhibiting and killing various bacteria, promoting the growth of endothelium and reducing fibrous tissue hyperplasia and scar formation. Chitin enters into cell body by permeation, absorbs cytoplasm with anions in the cell body, and generates flocculation action to disturb normal physiological activities of cells, thereby killing bacteria. And chitin is a natural polymer compound, and has good moisture retention, adsorptivity, viscosity increasing property, antibacterial property, antistatic property, film forming property, combing property, softness, and effects of activating, repairing cells and relieving allergic skin. The composite fiber is added into milk protein spinning solution to be spun into composite fiber, so that the antibacterial property of the composite fiber can be improved, and the knitted fabric has the effect of promoting wound healing.

In detail, under the condition of stirring the milk protein spinning solution, chitin is added to form a mixed spinning solution, wherein the solid-liquid mass ratio of the chitin to the milk protein spinning solution is 1.5: 8.0. And the chitin is added while stirring at the stirring speed of 300 plus 500r/min, so that the chitin can be prevented from being bonded into lumps, and the chitin can be more uniformly dispersed in the milk protein spinning solution, thereby ensuring the uniformity of the antibacterial effect of the knitted fabric and improving the quality of the knitted fabric. Meanwhile, the raw materials can be prevented from being splashed out of the container to cause inaccurate proportioning and influence on the antibacterial performance of the container. When the solid-liquid mass ratio of the chitin to the milk protein spinning solution is 1.5:8.0, the knitted fabric has better antibacterial property, antiallergic property and cell repairing function. The viscosity of the mixed spinning solution has great influence on the spinnability of the mixed spinning solution, and further influences the physical and chemical properties of the fiber, the production rate of the composite fiber and the like. When the viscosity of the mixed spinning solution is 3.5-4.0 Pa.S, the mixed spinning solution stands for deaeration, and then spinning is carried out to obtain the composite fiber, the broken ends are not easy to occur in the spinning process, the spinning condition is stable, the phenomena of doubling and plate sticking are avoided, the spinnability is good, and the mechanical property of the composite fiber is good.

The secretion and metabolite of mite are strong allergen, and can cause allergic diseases such as allergic asthma, allergic rhinitis and allergic dermatitis, and the like, and has great harm to children and allergic people. Mites often breed in pillows, mattresses, sheets, bedding, quilts, sofas, simmons, carpets, blankets, plush toys, fur clothing, mats, and the like. Therefore, in order to ensure the health of human body, the development of antibacterial and anti-mite textiles becomes important. At present, the anti-mite textiles mainly comprise 3 types: the fabric is obtained by post-finishing the fabric by using the anti-mite finishing agent; adding the anti-mite finishing agent into the fiber-forming polymer, and spinning to obtain anti-mite fibers; the anti-mite effect is achieved by weaving high-density fabrics, the method cannot repel or kill mites, and the mites are prevented from invading only by weaving tightly, so that the effect of isolating the mites is achieved. The above methods all have some limitations. The anti-mite substances adopted in the methods 1 and 2 are chemical products, the manufacturing of the anti-mite substances is harmful to the environment, and in addition, if the residual anti-mite chemicals on the textiles exceed standards, the anti-mite substances also bring safety hidden dangers to human bodies, and the method 2 is only suitable for chemical fibers. In the 3 rd method, the textile is subjected to abrasion and washing during use, and the yarn is thinned to enlarge holes in the textile, so that the anti-mite effect is gradually lost.

The kapok fiber belongs to a natural cellulose fiber and has the characteristics of hollow ultralight weight, good heat retention, natural antibiosis, mite prevention, mildew prevention, moisture absorption and moisture conduction and the like. The kapok product has the mite-proof effect because the concomitant substances on the surface of the kapok fiber have the mite-proof effect. According to the invention, the kapok fiber is added into the composite fiber to be blended and spun into the composite yarn by utilizing the antibacterial and anti-mite characteristics of the kapok fiber, wherein the blending ratio of the composite fiber to the kapok fiber is 65: 35. The kapok fiber and the composite fiber are blended, and the advantages of different fibers are complemented, so that the antibacterial property of the composite yarn is improved, and the anti-mite effect of the composite yarn is achieved. And the above effects are permanent and not reduced by the number of washing times. The composite yarns all adopt natural components, so that the harm of chemical reagents to the environment and the human body is reduced.

The milk protein fiber in the composite fiber has poor antistatic property, is difficult to eliminate after being charged with static electricity, and is easy to have the phenomena of cylinder winding and the like in the spinning process, so that the composite fiber is soaked in antistatic mixed solution for pretreatment for 30-35 minutes in the embodiment of the invention according to the process principle of reducing fiber damage and reducing the influence of static electricity on spinning before spinning. The composite fiber is soaked in the antistatic mixed solution to eliminate the static electricity of the composite fiber, so that the composite fiber and the kapok fiber are mixed with each other, and then the uniformly mixed fiber is spun into the composite yarn, so that the components of the fiber in the composite yarn are uniform, and the uniformity of a knitted fabric product is ensured. Meanwhile, yarn breakage caused by the existence of static electricity can be avoided, and therefore the production efficiency of the yarn is improved. In detail, the antistatic mixed solution is configured as follows: the mass of the antistatic agent is 0.1 percent of the dry mass of the composite fiber (milk protein fiber/chitin composite fiber), and the mass of the water is 10 to 12 percent of the dry mass of the composite fiber. The antistatic mixed solution in the proportion can effectively eliminate the static electricity of the composite fiber, does not pollute the environment and saves the using amount of the antistatic agent. And drying the composite fiber, and then blending the composite fiber with the kapok fiber to prepare the composite yarn.

Further, in order to uniformly mix the composite fiber and the kapok fiber and meet the requirement of the finished yarn on the strength of the composite fiber. In the embodiment of the invention, in the drying process, the composite fiber is dried until the moisture regain is 15-17%, so that the aim can be fulfilled. The kapok fiber is added to be blended into the composite yarn, and the composite fiber can also avoid the electrostatic phenomenon after the semi-finished product looses moisture in the production process under the moisture regain, so that the production is inconvenient.

In order to improve the wearing comfort of the knitted fabric, in the embodiment of the invention, the composite yarn is knitted into the milk protein knitted health-care fabric by utilizing a knitting process and taking the bead-ground mesh tissue as a structural unit of the knitted fabric. Moisture permeability, air permeability, hygroscopicity, moisture absorption quick drying property and softness are the most important indexes in the comfort indexes of underwear. The bead ground mesh tissue is configured by coils and tuck suspension arcs in a staggered mode to form meshes. Therefore, the knitted fabric has larger gaps than plain knitted fabrics, so that the knitted fabric with the weave structure has excellent air permeability, moisture absorption, quick drying and other performances, and the overall wearability is better.

In the embodiment of the invention, the milk protein knitted health-care fabric prepared by the preparation process has the advantages of body bone, elasticity, good dimensional stability, good wear resistance, soft luster and light texture, gives people a feeling of elegance, luxury, pizzeria, elegance, soft and plump hand feeling, good drapability, plumpness and aesthetic feeling. Moreover, the clothes made of the fabric also have certain antibacterial and anti-mite effects. In particular, the milk protein fiber can rapidly absorb and transmit sweat, thereby keeping the skin dry and comfortable, keeping the skin smooth and fresh and tender like silk, and realizing the 'milk bath' drenched by people. The fabric meets the requirements of people on functionalization, health care and individuation of clothes, has good wearing comfort and ideal appearance effect, and has very wide application prospect in the textile industry.

The features and properties of the present invention are described in further detail below with reference to examples.

Example 1

The embodiment of the invention provides a preparation process of a milk protein knitted health-care fabric, which comprises the following steps:

adding chitin into a milk protein spinning solution, uniformly stirring at a stirring speed of 300r/min to prepare a mixed spinning solution with the viscosity of 3.5 Pa.S, standing and defoaming the mixed spinning solution, and then spinning to obtain a composite fiber; dipping the composite fiber in an antistatic mixed solution for pretreatment for 30 minutes, and then drying the composite fiber until the moisture regain is 15%; mixing the dried composite fiber and kapok fiber to spin composite yarn, wherein the blending ratio of the composite fiber to the kapok fiber is 65: 35; the composite yarn is knitted by a knitting process, and the milk protein knitted health-care fabric is prepared by taking the bead-ground mesh tissue as a structural unit of the knitted fabric.

The solid-liquid mass ratio of the chitin to the milk protein spinning solution is 1.5: 8.0. The antistatic mixed solution is prepared by the following steps: the mass of the antistatic agent is 0.1 percent of the dry mass of the composite fiber, and the mass of the water is 10 percent of the dry mass of the composite fiber.

Example 2

The embodiment of the invention provides a preparation process of a milk protein knitted health-care fabric, which comprises the following steps:

adding chitin into a milk protein spinning solution, uniformly stirring at a stirring speed of 500r/min to prepare a mixed spinning solution with the viscosity of 4.0 Pa.S, standing and defoaming the mixed spinning solution, and then spinning to obtain a composite fiber; dipping the composite fiber in an antistatic mixed solution for pretreatment for 35 minutes, and then drying the composite fiber until the moisture regain is 17%; mixing the dried composite fiber and kapok fiber to spin composite yarn, wherein the blending ratio of the composite fiber to the kapok fiber is 65: 35; the composite yarn is knitted by a knitting process, and the milk protein knitted health-care fabric is prepared by taking the bead-ground mesh tissue as a structural unit of the knitted fabric.

The solid-liquid mass ratio of the chitin to the milk protein spinning solution is 1.5: 8.0. The antistatic mixed solution is prepared by the following steps: the mass of the antistatic agent is 0.1 percent of the dry mass of the composite fiber, and the mass of the water is 12 percent of the dry mass of the composite fiber.

Example 3

The embodiment of the invention provides a preparation process of a milk protein knitted health-care fabric, which comprises the following steps:

adding chitin into a milk protein spinning solution, uniformly stirring at a stirring speed of 450r/min to prepare a mixed spinning solution with the viscosity of 3.8 Pa.S, standing and defoaming the mixed spinning solution, and then spinning to obtain a composite fiber; dipping the composite fiber in an antistatic mixed solution for pretreatment for 33 minutes, and then drying the composite fiber until the moisture regain is 16%; mixing the dried composite fiber and kapok fiber to spin composite yarn, wherein the blending ratio of the composite fiber to the kapok fiber is 65: 35; the composite yarn is knitted by a knitting process, and the milk protein knitted health-care fabric is prepared by taking the bead-ground mesh tissue as a structural unit of the knitted fabric.

The solid-liquid mass ratio of the chitin to the milk protein spinning solution is 1.5: 8.0. The antistatic mixed solution is prepared by the following steps: the mass of the antistatic agent is 0.1 percent of the dry mass of the composite fiber, and the mass of the water is 11 percent of the dry mass of the composite fiber.

Example 4

The embodiment of the invention provides a preparation process of a milk protein knitted health-care fabric, which comprises the following steps:

adding chitin into the milk protein spinning solution, uniformly stirring to prepare a mixed spinning solution with the viscosity of 3.6 Pa.S, standing and defoaming the mixed spinning solution, and then spinning to obtain composite fibers; dipping the composite fiber in an antistatic mixed solution for pretreatment for 31 minutes and then drying the composite fiber; mixing the dried composite fiber and kapok fiber to spin composite yarn; the composite yarn is knitted by a knitting process, and the milk protein knitted health-care fabric is prepared by taking the bead-ground mesh tissue as a structural unit of the knitted fabric.

The solid-liquid mass ratio of the chitin to the milk protein spinning solution is 1.5: 8.0. The antistatic mixed solution is prepared by the following steps: the mass of the antistatic agent is 0.1 percent of the dry mass of the composite fiber, and the mass of the water is 12 percent of the dry mass of the composite fiber.

Example 5

The embodiment of the invention provides a preparation process of a milk protein knitted health-care fabric, which comprises the following steps:

adding chitin into a milk protein spinning solution, uniformly stirring at a stirring speed of 400r/min to prepare a mixed spinning solution, standing and defoaming the mixed spinning solution, and then spinning to obtain a composite fiber; the composite fiber and the kapok fiber are mixed and spun into composite yarn; the composite yarn is knitted by a knitting process, and the milk protein knitted health-care fabric is prepared by taking the bead-ground mesh tissue as a structural unit of the knitted fabric.

The solid-liquid mass ratio of the chitin to the milk protein spinning solution is 1.5: 8.0.

Example 6

The embodiment of the invention provides a preparation process of a milk protein knitted health-care fabric, which comprises the following steps:

adding chitin into the milk protein spinning solution, uniformly stirring to prepare a mixed spinning solution, standing and defoaming the mixed spinning solution, and then spinning to obtain composite fibers; the composite fiber and the kapok fiber are mixed and spun into composite yarn; and (3) preparing the milk protein knitted health-care fabric from the composite yarn by using a knitting process.

Effect example 1

The fabric is prepared according to the preparation process of the milk protein knitted health-care fabric provided by the examples 1 to 6, the antibacterial rate of the milk protein knitted health-care fabric of the examples 1 to 6 is respectively tested according to the related test method of FZ/T73023-2006 antibacterial knitwear, and the test results are shown in Table 1.

TABLE 1 test results of antibacterial ratio

It should be noted that the test data of the antibacterial rate is measured after 50 times of washing the milk protein knitted health care fabric.

As can be seen from the data in Table 1, the milk protein knitted health-care fabric prepared by the process has an excellent antibacterial effect which is far higher than the AAA antibacterial level (staphylococcus aureus is more than or equal to 80, escherichia coli is more than or equal to 70, and candida albicans is more than or equal to 60) in the antibacterial knitwear industry standard, so that the synergistic effect of the milk protein fiber, the kapok fiber and the chitin is shown, the fabric has an antibacterial function, the effect is excellent, the antibacterial effectiveness is longer, and the antibacterial requirement of consumers is met.

Effect example 2

The fabric is prepared according to the preparation process of the milk protein knitted health-care fabric provided by the examples 1-6, the repellent rate of the milk protein knitted health-care fabric of the examples 1-6 to mites is respectively tested by referring to a repellent method of GB/T24253-2009 'evaluation of anti-mite performance of textiles', and the test result of the repellent rate is shown in Table 2.

TABLE 1 test results for repellency rates

As can be seen from the data in Table 2, the milk protein knitted health-care fabric prepared by the process has an anti-mite effect, and the repelling rate of the sample to mites is more than or equal to 60%, which indicates that the fabric meets the requirement of anti-mite performance due to the addition of the kapok fiber.

In summary, the preparation process of the milk protein knitted health fabric provided by the embodiment of the invention comprises the following steps: uniformly stirring the milk protein spinning solution and the chitin to form a mixed spinning stock solution, standing and defoaming the mixed spinning stock solution, and then spinning to obtain composite fibers; the composite fiber is added into the kapok fiber to be blended to prepare composite yarn, and the composite yarn is prepared into the milk protein knitted health-care fabric by utilizing a knitting process. The process can permanently exert the effect of effective substances in the raw materials, and simultaneously ensure that the raw materials are mixed more uniformly, thereby ensuring the uniformity of the milk protein knitted health-care fabric. On the other hand, the fabric manufactured by the preparation process of the milk protein knitted health-care fabric has the advantages of body bone, elasticity, good dimensional stability, good wear resistance, soft luster and light texture, gives people a feeling of elegance, luxury, pizziness and elegant, and has soft and plump hand feeling, good drapability, fullness and beauty. Moreover, the clothes made of the fabric also have certain antibacterial and anti-mite effects.

The embodiments described above are some, but not all embodiments of the invention. The detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.