1. The colorful cloth composite material is characterized by comprising a transparent PVC layer, a colorful cloth layer, a first real-color PVC layer, a polyester mesh cloth layer and a second real-color PVC layer which are sequentially arranged from top to bottom.

2. The multicolor cloth composite material as claimed in claim 1, which comprises a transparent PVC surface layer, a first multicolor cloth layer, a first real-color PVC layer, a polyester mesh cloth layer, a second real-color PVC layer, a second multicolor cloth layer and a transparent PVC bottom layer arranged in sequence from top to bottom.

3. The preparation method of the multicolor cloth composite material is characterized by comprising the following steps of:

s1, preheating the multicolor cloth; the transparent PVC film, the first solid-color PVC film and the second solid-color PVC film are respectively preheated and heated; obtaining the pretreated colorful cloth, a transparent PVC film, a first real-color PVC film and a second real-color PVC film;

s2, respectively attaching the pretreated transparent PVC film and the first real-color PVC film to two sides of the pretreated multicolor cloth to obtain a semi-finished product;

s3, ironing the polyester mesh, pasting and drying to obtain pasted polyester base cloth;

s4, preheating the semi-finished product, respectively attaching the second solid-color PVC film and one side of the semi-finished product provided with the solid-color PVC film to the two sides of the pasted polyester base cloth, and then carrying out hot pressing to obtain the colorful cloth composite material.

4. The method for preparing the magic color cloth composite material according to claim 3, characterized by comprising the following steps:

s1, preheating the first multicolor cloth and the second multicolor cloth respectively; preheating and heating the transparent PVC facial mask, the transparent PVC base film, the first solid-color PVC film and the second solid-color PVC film respectively; obtaining a first colorful cloth, a second colorful cloth, a transparent PVC (polyvinyl chloride) face film, a transparent PVC bottom film, a first real-color PVC film and a second real-color PVC film which are pretreated;

s2, respectively attaching the pretreated transparent PVC facial mask and the first real-color PVC membrane to two sides of the pretreated first colorful cloth to obtain a semi-finished product facial mask;

respectively attaching the pretreated transparent PVC base film and a second real-color PVC film to two sides of the pretreated second colorful cloth to obtain a semi-finished bottom layer;

s3, ironing the polyester mesh cloth, then dipping, pasting and drying to obtain pasted polyester base cloth;

s4, preheating a semi-finished surface layer and a semi-finished bottom layer, respectively attaching the side of the semi-finished surface layer provided with the first real-color PVC film and the side of the semi-finished bottom layer provided with the second real-color PVC film to the two sides of the pasted polyester base cloth, and then carrying out hot pressing to obtain the colorful cloth composite material.

5. The method for preparing the magic color cloth composite material according to claim 3, wherein the preheating temperature of the magic color cloth is 60-80 ℃.

6. The preparation method of the magic color cloth composite material as claimed in claim 3, wherein the temperature for preheating the transparent PVC film and the solid color PVC film is 140-160 ℃, and the temperature for heating treatment is 170-180 ℃.

7. The method for preparing the magic color cloth composite material as claimed in claim 3, wherein the viscosity of the paste used for pasting is 1500-3000 cps.

8. The method for preparing the multicolor cloth composite material according to the claim 3, wherein the transparent PVC film and the solid color PVC film are both produced by a calendering process.

Background

The sandwich mesh cloth is a composite material which takes textile mesh cloth as base cloth and is compounded with one or more layers of films with various thicknesses on two surfaces. The type of the clamping net cloth is more, such as PVC clamping net cloth, EVA clamping net cloth, rubber clamping net cloth, TPU clamping net cloth and the like. The polyester mesh fabric material has the advantages of light weight, high strength, low shrinkage and good air tightness after the fineness and the tissue density of the yarn are adjusted and the polyester mesh fabric is compounded with the film by a certain processing technology. Besides being applied to common products, the product is also suitable for preparing products which can bear weight and need to be aerated.

The colorful cloth is a cloth commonly used in the field of clothing and bags, has gorgeous colors and good light reflection performance, can show different color conversion effects under different light rays, and has aesthetic feeling. However, since the multicolor cloth is generally woven by fine denier civil yarns, the physical and mechanical properties of the multicolor cloth are poor, the material shrinkage rate is large, the thermal deformation is serious, and the problems of poor flatness of the obtained finished product, easy generation of bubbles between the multicolor cloth and the PVC film, poor peeling strength and the like exist after the multicolor cloth is compounded with the PVC film and the like, so that the prior multicolor cloth is not suitable for preparing high-strength sandwich mesh cloth. The application of the colorful cloth is greatly limited.

Disclosure of Invention

In order to overcome the defects of the prior art, the technical problems to be solved by the invention are as follows: provides a colorful cloth composite material and a preparation method thereof.

In order to solve the technical problems, the invention adopts the technical scheme that: the colorful cloth composite material comprises a transparent PVC layer, a colorful cloth layer, a first real-color PVC layer, a polyester mesh cloth layer and a second real-color PVC layer which are sequentially arranged from top to bottom.

The other technical scheme adopted by the invention is as follows: the colorful cloth composite material comprises a transparent PVC surface layer, a first colorful cloth layer, a first real-color PVC layer, a polyester mesh cloth layer, a second real-color PVC layer, a second colorful cloth layer and a transparent PVC bottom layer which are sequentially arranged from top to bottom.

Wherein, the colorful cloth layer is woven by fine denier yarn.

The other technical scheme adopted by the invention is as follows: a preparation method of a magic color cloth composite material comprises the following steps:

s1, preheating the multicolor cloth; the transparent PVC film, the first solid color PVC film and the second solid color PVC film are respectively preheated and heated; obtaining the pretreated colorful cloth, a transparent PVC film, a first real-color PVC film and a second real-color PVC film;

s2, respectively attaching the pretreated transparent PVC film and the first real-color PVC film to two sides of the pretreated multicolor cloth to obtain a semi-finished product;

s3, ironing the polyester mesh, pasting and drying to obtain pasted polyester base cloth;

s4, preheating the semi-finished product, attaching the side of the semi-finished product provided with the first solid-color PVC film and the second solid-color PVC film to the pasted polyester base cloth, and carrying out hot pressing to obtain the colorful cloth composite material.

The invention has the beneficial effects that: the colorful cloth composite material provided by the invention has the effect that the colorful cloth is colorful and gorgeous, and simultaneously has high tensile strength, high peel strength and good air tightness which are not possessed by the colorful cloth, and the colorful cloth composite material can be used for preparing products with higher air tightness requirements, such as water floating equipment and the like.

According to the preparation method of the multicolor cloth composite material, the multicolor cloth is preheated, then is subjected to hot pressing with the two layers of PVC films, and finally is compounded with the polyester mesh cloth with high strength and low shrinkage rate at a certain temperature, so that the shrinkage rate of a finished product is effectively reduced, the problem that the peeling strength of the compounded multicolor cloth and the PVC film is low in the first laminating process is solved, and the problem that the multicolor cloth cannot be used for preparing the sandwich mesh cloth (resin composite material) with high strength is solved.

Detailed Description

In order to explain the technical content, the objects and the effects of the present invention in detail, the following description will be given with reference to the embodiments.

The invention provides a colorful cloth composite material which comprises a transparent PVC layer, a colorful cloth layer, a first real-color PVC layer, a polyester mesh cloth layer and a second real-color PVC layer which are sequentially arranged from top to bottom.

Furthermore, the colorful cloth composite material comprises a transparent PVC surface layer, a first colorful cloth layer, a first real-color PVC layer, a polyester mesh cloth layer, a second real-color PVC layer, a second colorful cloth layer and a transparent PVC bottom layer which are sequentially arranged from top to bottom.

Further, the colorful cloth layer is woven by fine denier yarn (civil yarn with fine denier).

From the above description, the beneficial effects of the present invention are: the colorful cloth composite material provided by the invention has the effect that the colorful cloth is colorful and gorgeous, and simultaneously has high tensile strength, peeling strength and good air tightness which are not possessed by the colorful cloth, and can be used for preparing products with higher air tightness requirements, such as water floating platforms, surfboards and the like; the multicolor cloth composite material can show completely different multicolor effects at different distances and different angles, can increase the visual effect of products, and the differentiated products are beneficial to improving the added value of the material;

the multicolor cloth composite material uses the real-color PVC film, the real-color layer is lined below the transparent multicolor cloth, the multicolor effect of the multicolor cloth can still be kept, and different color base tones can be presented, so that the dependence of the product on the color of the multicolor cloth is reduced, the dependence on raw material selection is reduced, and the cost control and the large-scale production are facilitated. The emergence of the composite material of the multicolor cloth also greatly widens the application field of the multicolor cloth and has higher economic value.

The invention provides a preparation method of a colorful cloth composite material, which comprises the following steps:

s1, preheating the multicolor cloth; the transparent PVC film, the first solid color PVC film and the second solid color PVC film are respectively preheated and heated; obtaining the pretreated colorful cloth, a transparent PVC film, a first real-color PVC film (opaque PVC film) and a second real-color PVC film (opaque PVC film);

s2, respectively attaching the pretreated transparent PVC film and the first real-color PVC film to two sides of the pretreated multicolor cloth to obtain a semi-finished product;

s3, ironing the polyester mesh, pasting and drying to obtain pasted polyester base cloth;

s4, preheating the semi-finished product, attaching one side of the semi-finished product provided with the first solid-color PVC film and the second solid-color PVC film to the pasted polyester base cloth, and carrying out hot pressing to obtain the colorful cloth composite material.

Further, the preparation method of the multicolor cloth composite material comprises the following steps:

s1, preheating the first multicolor cloth and the second multicolor cloth; preheating and heating the transparent PVC facial mask, the transparent PVC base film, the first solid-color PVC film and the second solid-color PVC film respectively; obtaining a first colorful cloth, a second colorful cloth, a transparent PVC (polyvinyl chloride) face film, a transparent PVC bottom film, a first real-color PVC film and a second real-color PVC film which are pretreated;

s2, respectively attaching the pretreated transparent PVC facial mask and the first real-color PVC membrane to two sides of the pretreated first colorful cloth to obtain a semi-finished product facial mask;

respectively attaching the pretreated transparent PVC base film and a second real-color PVC film to two sides of the pretreated second colorful cloth to obtain a semi-finished bottom layer;

s3, ironing the polyester mesh cloth, then dipping, pasting and drying to obtain pasted polyester base cloth;

s4, preheating a semi-finished surface layer and a semi-finished bottom layer, respectively attaching the side of the semi-finished surface layer provided with the first real-color PVC film and the side of the semi-finished bottom layer provided with the second real-color PVC film to the two sides of the pasted polyester base cloth, and then carrying out hot pressing to obtain the colorful cloth composite material.

From the above description, the beneficial effects of the present invention are: the multicolor fabric has the problems of large shrinkage rate and serious thermal deformation, is suitable for preparing daily common clothes and bags, is not suitable for being processed into the mesh fabric composite material at high temperature, and has the problems of easy occurrence of bubbles, poor flatness and easy peeling. According to the preparation method of the multicolor cloth composite material, the multicolor cloth is preheated and then is hot-pressed with the two layers of PVC films, the preheating of the multicolor cloth and the preheating of the PVC films are vital in the process at proper temperature, the flatness and the peel strength of the subsequently obtained composite material can be obviously influenced, and meanwhile, the process is carried out at a lower forming and processing temperature, so that the problem of thermal shrinkage of the composite material is effectively solved; after the semi-finished colorful cloth composite material is obtained, the semi-finished colorful cloth composite material is compounded with polyester mesh cloth with high strength and low shrinkage rate at a certain temperature, and hot pressing is carried out for the second time, so that the shrinkage rate of the finished product is effectively reduced, and the problem that the peeling strength of the compounded colorful cloth and a PVC film is low in the first laminating process is solved.

Further, the preheating temperature of the multicolor cloth in the S1 is 60-80 ℃.

As can be seen from the above description, too high a preheating temperature causes thermal deformation of the material.

Further, the preheating temperature of the transparent PVC film and the solid color PVC film in S1 is 140-160 ℃, and the heating treatment temperature is 170-180 ℃.

Further, the viscosity of the paste for pasting in S3 was 1500-3000 cps.

Furthermore, the transparent PVC film and the solid-color PVC film are both produced by a calendering process.

Further, the paste used for pasting consists of E-PVC paste and PVC cross-linking agent accounting for 3-5% of the total mass of the E-PVC paste; the E-PVC paste is prepared from the following components in percentage by mass of 100: 65-75: 2-3 of E-PVC resin, DINP and a liquid barium zinc stabilizer;

example 1:

the colorful cloth composite material is formed by sequentially arranging the following structures from top to bottom: the PVC film comprises a transparent PVC surface layer, a colorful cloth layer, a first real-color PVC layer, a polyester mesh cloth layer and a second real-color PVC film;

the colorful cloth layer is woven by fine denier yarns.

Example 2:

the colorful cloth composite material is formed by sequentially arranging the following structures from top to bottom: the PVC fabric comprises a transparent PVC surface layer, a first multicolor cloth layer, a first real-color PVC layer, a polyester mesh cloth layer, a second real-color PVC layer, a second multicolor cloth layer and a transparent PVC bottom layer;

the colorful cloth layer is woven by fine denier yarns.

Example 3:

the preparation method of the colorful cloth composite material specifically comprises the following steps:

s1, preheating the first colorful cloth and the second colorful cloth at 75 ℃;

preheating the transparent PVC facial mask, the transparent PVC base film, the first solid-color PVC film and the second solid-color PVC film at 150 ℃, and then respectively heating at 180 ℃, namely respectively preheating and then respectively heating; obtaining a first colorful cloth, a second colorful cloth, a transparent PVC (polyvinyl chloride) face film, a transparent PVC bottom film, a first real-color PVC film and a second real-color PVC film which are pretreated;

the transparent PVC facial mask, the transparent PVC base film, the first solid-color PVC film and the second solid-color PVC film are all produced by a calendering process;

s2, respectively attaching the pretreated transparent PVC facial mask and the first real-color PVC membrane to two sides of the pretreated first colorful cloth to obtain a semi-finished product facial mask;

respectively attaching the pretreated transparent PVC base film and a second real-color PVC film to two sides of the pretreated second colorful cloth to obtain a semi-finished bottom layer;

s3, ironing the polyester mesh cloth, then dipping, pasting and drying to obtain pasted polyester base cloth;

wherein the viscosity of the paste for pasting is 2000 cps; the paste consists of E-PVC paste and PVC cross-linking agent accounting for 5 percent of the total mass of the E-PVC paste; the E-PVC paste is prepared from the following components in percentage by mass of 100: 70: 2, E-PVC resin, DINP and a liquid barium-zinc stabilizer;

s4, preheating a semi-finished surface layer and a semi-finished bottom layer at 145 ℃, respectively attaching one side of the semi-finished surface layer provided with a first real-color PVC film and one side of the semi-finished bottom layer provided with a second real-color PVC film to two sides of the pasted polyester base cloth, and then carrying out hot pressing and double embossing by two groups of heating rollers to obtain the colorful cloth composite material;

the obtained colorful cloth composite material sequentially comprises a transparent PVC surface layer, a first colorful cloth layer, a first real-color PVC layer, a polyester mesh cloth layer, a second real-color PVC layer, a second colorful cloth layer and a transparent PVC bottom layer from top to bottom.

Example 4:

the preparation method of the colorful cloth composite material specifically comprises the following steps:

s1, preheating the first colorful cloth and the second colorful cloth at the temperature of 60 ℃;

preheating the transparent PVC face film, the transparent PVC base film, the first solid-color PVC film and the second solid-color PVC film at 140 ℃, and then respectively carrying out heating treatment at 170 ℃, namely respectively preheating and then respectively carrying out heating treatment; obtaining a first colorful cloth, a second colorful cloth, a transparent PVC (polyvinyl chloride) face film, a transparent PVC bottom film, a first real-color PVC film and a second real-color PVC film which are pretreated;

the transparent PVC facial mask, the transparent PVC base film, the first solid-color PVC film and the second solid-color PVC film are all produced by a calendering process;

s2, respectively attaching the pretreated transparent PVC facial mask and the first real-color PVC membrane to two sides of the pretreated first colorful cloth to obtain a semi-finished product facial mask;

respectively attaching the pretreated transparent PVC base film and a second real-color PVC film to two sides of the pretreated second colorful cloth to obtain a semi-finished bottom layer;

s3, ironing the polyester mesh cloth, then dipping, pasting and drying to obtain pasted polyester base cloth;

wherein the viscosity of the paste for pasting is 1500 cps; the paste consists of E-PVC paste and PVC cross-linking agent accounting for 3 percent of the total mass of the E-PVC paste; the E-PVC paste is prepared from the following components in percentage by mass of 100: 75: 3, E-PVC resin, DINP and a liquid barium-zinc stabilizer;

s4, preheating a semi-finished surface layer and a semi-finished bottom layer at 150 ℃, respectively attaching one side of the semi-finished surface layer provided with a first real-color PVC film and one side of the semi-finished bottom layer provided with a second real-color PVC film to two sides of the pasted polyester base cloth, and then carrying out hot pressing and double embossing by two groups of heating rollers to obtain the colorful cloth composite material;

the obtained colorful cloth composite material sequentially comprises a transparent PVC surface layer, a first colorful cloth layer, a first real-color PVC layer, a polyester mesh cloth layer, a second real-color PVC layer, a second colorful cloth layer and a transparent PVC bottom layer from top to bottom.

Example 5:

the preparation method of the colorful cloth composite material specifically comprises the following steps:

s1, preheating the first colorful cloth and the second colorful cloth at 70 ℃;

preheating the transparent PVC surface film, the transparent PVC bottom film, the first solid-color PVC film and the second solid-color PVC film at 155 ℃, and then respectively heating at 175 ℃, namely respectively preheating and then respectively heating; obtaining a first colorful cloth, a second colorful cloth, a transparent PVC (polyvinyl chloride) face film, a transparent PVC bottom film, a first real-color PVC film and a second real-color PVC film which are pretreated;

the transparent PVC facial mask, the transparent PVC base film, the first solid-color PVC film and the second solid-color PVC film are all produced by a calendering process;

s2, respectively attaching the pretreated transparent PVC facial mask and the first real-color PVC membrane to two sides of the pretreated first colorful cloth to obtain a semi-finished product facial mask;

respectively attaching the pretreated transparent PVC base film and a second real-color PVC film to two sides of the pretreated second colorful cloth to obtain a semi-finished bottom layer;

s3, ironing the polyester mesh cloth, then dipping, pasting and drying to obtain pasted polyester base cloth;

wherein the viscosity of the paste for pasting is 3000 cps; the paste consists of E-PVC paste and PVC cross-linking agent accounting for 4 percent of the total mass of the E-PVC paste; the E-PVC paste is prepared from the following components in percentage by mass of 100: 65: 2.5 of E-PVC resin, DINP and a liquid barium zinc stabilizer;

s4, preheating a semi-finished surface layer and a semi-finished bottom layer at 140 ℃, respectively attaching one side of the semi-finished surface layer provided with a first real-color PVC film and one side of the semi-finished bottom layer provided with a second real-color PVC film to two sides of the pasted polyester base cloth, and then carrying out hot pressing and double embossing by two groups of heating rollers to obtain the colorful cloth composite material;

the obtained colorful cloth composite material sequentially comprises a transparent PVC surface layer, a first colorful cloth layer, a first real-color PVC layer, a polyester mesh cloth layer, a second real-color PVC layer, a second colorful cloth layer and a transparent PVC bottom layer from top to bottom.

Example 6:

the preparation method of the colorful cloth composite material specifically comprises the following steps:

s1, preheating the first colorful cloth and the second colorful cloth at the temperature of 80 ℃;

preheating the transparent PVC facial mask, the transparent PVC base film, the first solid-color PVC film and the second solid-color PVC film at 160 ℃, and then respectively heating at 180 ℃, namely respectively preheating and then respectively heating; obtaining a first colorful cloth, a second colorful cloth, a transparent PVC (polyvinyl chloride) face film, a transparent PVC bottom film, a first real-color PVC film and a second real-color PVC film which are pretreated;

the transparent PVC facial mask, the transparent PVC base film, the first solid-color PVC film and the second solid-color PVC film are all produced by a calendering process;

s2, respectively attaching the pretreated transparent PVC facial mask and the first real-color PVC membrane to two sides of the pretreated first colorful cloth to obtain a semi-finished product facial mask;

respectively attaching the pretreated transparent PVC base film and a second real-color PVC film to two sides of the pretreated second colorful cloth to obtain a semi-finished bottom layer;

s3, ironing the polyester mesh cloth, then dipping, pasting and drying to obtain pasted polyester base cloth;

wherein the viscosity of the paste for pasting is 2500 cps; the paste was the same as the paste of example 3;

s4, preheating a semi-finished surface layer and a semi-finished bottom layer at 160 ℃, respectively attaching one side of the semi-finished surface layer provided with a first real-color PVC film and one side of the semi-finished bottom layer provided with a second real-color PVC film to two sides of the pasted polyester base cloth, and then carrying out hot pressing and double embossing by two groups of heating rollers to obtain the colorful cloth composite material;

the obtained colorful cloth composite material sequentially comprises a transparent PVC surface layer, a first colorful cloth layer, a first real-color PVC layer, a polyester mesh cloth layer, a second real-color PVC layer, a second colorful cloth layer and a transparent PVC bottom layer from top to bottom.

Comparative example 1:

comparative example 1 differs from example 3 only in that S1 is different, and in S1 of comparative example 1, neither the first fantasy cloth nor the second fantasy cloth is preheated and used directly in S2.

Comparative example 2:

comparative example 2 is different from example 3 only in S1, and in S1 of comparative example 2, the PVC transparent top layer, the PVC transparent bottom layer, the first solid color PVC layer, and the second solid color PVC layer are directly heat-treated without preheating.

Comparative example 3:

comparative example 3 differs from example 3 only in S4, in S4 of comparative example 3, the top and bottom semi-finished layers are not preheated and are directly bonded to a polyester scrim.

Tensile strength and peeling property between the semi-finished surface layer, bottom layer and polyester mesh cloth were measured on the multicolor cloth composite materials of examples 3 to 6 and comparative examples 1 to 3, and the surface flatness and the presence or absence of bubbles were observed, and the results are shown in table 1.

TABLE 1

	Tensile Strength (N/5cm)	Peel strength (N/5cm)	Surface state
				Example 3	2400	92	No bubble, smooth
Example 4	2350	86	No bubble, smooth
				Example 5	2300	84	No bubble, smooth
Example 6	2500	97	No bubble, smooth
				Comparative example 1	2200	76	More air bubbles and unevenness
Comparative example 2	2140	68	Large amount of bubbles and unevenness
				Comparative example 3	2100	34	Large amount of bubbles, unevenness

In conclusion, the colorful cloth composite material provided by the invention has the colorful cloth colorful effect, can show completely different colorful effects at different distances and different angles, can increase the visual effect of products, and is beneficial to improving the added value of differentiated products; meanwhile, the colorful cloth composite material has high tensile strength, peeling strength and good air tightness which are not possessed by colorful cloth, and can be used for preparing products with high air tightness requirements, such as water floating platforms, surfboards and the like; the multicolor cloth composite material uses the real-color PVC film, the real-color layer is lined below the transparent multicolor cloth, the multicolor effect of the multicolor cloth can still be kept, and different color base tones can be presented, so that the dependence of the product on the color of the multicolor cloth is reduced, the dependence on raw material selection is reduced, and the cost control and the large-scale production are facilitated. The emergence of the composite material of the multicolor cloth also greatly widens the application field of the multicolor cloth and has higher economic value.

According to the preparation method of the multicolor cloth composite material, the multicolor cloth is preheated and then is hot-pressed with the two layers of PVC films, the preheating of the multicolor cloth and the preheating of the PVC films are vital in the process at proper temperature, the flatness and the peel strength of the subsequently obtained composite material can be obviously influenced, and meanwhile, the process is carried out at a lower forming and processing temperature, so that the problem of thermal shrinkage of the composite material is effectively solved; after the semi-finished colorful cloth composite material is obtained, the semi-finished colorful cloth composite material is compounded through the polyester mesh with high strength and low shrinkage rate at a certain temperature, and hot pressing is carried out for the second time, so that the shrinkage rate of the finished product is effectively reduced, the problem that the peeling strength of the compounded colorful cloth and a PVC film is low in the first laminating process is solved, and the preparation method overcomes the problem that the colorful cloth woven by the fine denier civil yarn is not suitable for preparing the sandwich mesh cloth composite material.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent modifications made by the present invention in the specification or directly or indirectly applied to the related technical field are included in the scope of the present invention.