1. The negative ion synthetic leather comprises a substrate (1), a resin layer (2) and an additive layer (3) which are mutually stacked, and is characterized in that the substrate (1) is a fabric; the primer of the resin layer (2) comprises polyurethane, a plasticizer, anion powder, a coupling agent, a dispersing agent, a stabilizing agent and dimethylformamide in parts by mass; the base material of the addition layer comprises ETFE, perfluoroalkyl and polyvinylidene fluoride according to parts by mass.

2. The negative ion synthetic leather according to claim 1, wherein the primer of the resin layer (2) comprises, by mass, 70-80 parts of polyurethane, 15-25 parts of a plasticizer, 15-25 parts of a negative ion powder, 1-5 parts of a coupling agent, 2-4 parts of a dispersant, and 1.5-5 parts of a stabilizer; the base material of the addition layer comprises 60-70 parts of ETFE, 15-20 parts of perfluoroalkyl and 10-15 parts of polyvinylidene fluoride according to mass parts; in the raw materials of the hydrophobic coating, the raw materials of the fusion resin comprise, by mass, 50-60 parts of polyurethane, 25-30 parts of dimethylformamide and 10-25 parts of methyl ethyl ketone.

3. The negative ion synthetic leather according to claim 1, wherein the negative ion powder comprises tourmaline powder and rare earth powder, and the ratio of the tourmaline powder to the rare earth powder is 8: 1; the rare earth powder includes yttrium oxide extracted from yttrium phosphate ore, cerium oxide extracted from cerium silica and cerium aluminum.

4. A negative ion synthetic leather according to claim 1, wherein the substrate is made of fabric, the fabric type of the substrate (1) comprises cotton cloth base, synthetic fiber base and fiber base, wherein the cotton cloth base comprises plain cloth, bleached cloth, dyed plain cloth base and canvas base, and the substrate further comprises nylon cloth base and polytetrafluoroethylene-based waterproof and oilproof fabric base.

5. The anion synthetic leather of claim 1, wherein the waterproof and oilproof fabric base is a polytetrafluoroethylene-based waterproof fabric base, and the waterproof and oilproof fabric base comprises a nylon waterproof breathable fabric, a polyester waterproof breathable fabric, a nylon waterproof moisture-permeable fabric and a polyester waterproof moisture-permeable fabric.

6. The anionic synthetic leather of claim 1, wherein the polyurethane is selected from the group consisting of polymeric polyurethanes.

7. The negative ion synthetic leather according to claim 6, wherein the preparation method comprises the following steps:

s1, preparing anion powder; respectively grinding yttrium phosphate ore and three kinds of ores of cerite and cerite into powder, mixing, filtering the mixed anion powder by a 600-mesh filter to obtain pure ore powder, carrying out hot melting on the ore powder, cooling and grinding into powder to obtain anion powder;

s2 preparing a resin layer (2); mixing polyurethane, plasticizer, anion powder, coupling agent, dispersant, stabilizer and dimethylformamide, mixing and heating at 95-110 ℃, cooling to obtain a resin layer (2),

s3 mixed tanning; heating ETFE, perfluoroalkyl compound and polyvinylidene fluoride, stirring and mixing to prepare an addition layer (3), and superposing and hot melting the substrate (1), the resin layer (2) and the addition layer (3) to obtain the synthetic leather.

8. The negative ion synthetic leather as claimed in claim 6, wherein the mineral powder is put into a fusion furnace and heated to 800-.

Background

Artificial leather is a plastic product that looks and feels like leather and can replace it. Usually, the fabric is used as a substrate and coated with synthetic resin and various plastic additives. At present, PVC artificial leather and PU synthetic leather are mainly used. The existing artificial leather has the advantages of soft texture, comfortable wearing, beautiful appearance, durability, strong heat retention, moisture absorption, ventilation, good color fastness and the like, and has waterproof property if being coated with special substances. Meanwhile, artificial leather has disadvantages that the wear resistance of the artificial leather is inferior to that of natural leather in terms of air permeability, moisture permeability and wear resistance, so that the comfort of the manufactured clothes is poor, and the surface plastic coating peels off to expose the base fabric after multiple rubbing or long-term use, thereby destroying the leather-like effect.

The existing synthetic artificial leather only makes certain requirements on aesthetic degree and air permeability, the artificial leather actually having certain functionality is in shortage on the market, and the medical application technology of the artificial leather in the prior art is quite rare.

The air anion is an ion beneficial to human health and ecological environment, and the medical effect of the air anion is verified by experts in medical field at home and abroad through clinical practice. The production of negative air ions is a result of the action of the oxytocin. In nature, waterfalls, fountains, torrents, lightning, ultraviolet rays in sunlight, snowfall in winter and the like can cause the generation of air anions, which is also the reason why the air is particularly fresh after rain or beside the waterfall. The invention with publication number CN1300411C and the invention with publication number CN105544236A respectively disclose PVC artificial leather capable of efficiently releasing negative ions, a preparation method of PU synthetic leather, negative ion high-release-amount polyurethane synthetic leather and a manufacturing method thereof, and the two inventions respectively adopt ore powder, polyurethane and negative ion powder slurry to synthesize and form divergent negative ion synthetic leather. Such synthetic leather is difficult to produce on the one hand, and on the other hand, the effect is poor.

Disclosure of Invention

The invention aims to solve the defect of poor effect of negative ion synthetic leather in the prior art and provides the negative ion synthetic leather.

In order to achieve the purpose, the invention adopts the following technical scheme:

the negative ion synthetic leather comprises a substrate, a resin layer and an additive layer which are mutually stacked, wherein the substrate is a fabric; the base material of the resin layer comprises polyurethane, a plasticizer, anion powder, a coupling agent, a dispersing agent, a stabilizing agent and dimethylformamide in parts by mass; the base material of the addition layer comprises ETFE, perfluoroalkyl and polyvinylidene fluoride according to parts by mass.

Preferably, the primer of the resin layer comprises, by mass, 70-80 parts of polyurethane, 15-25 parts of a plasticizer, 15-25 parts of anion powder, 1-5 parts of a coupling agent, 2-4 parts of a dispersant and 1.5-5 parts of a stabilizer; the base material of the addition layer comprises 60-70 parts of ETFE, 15-20 parts of perfluoroalkyl and 10-15 parts of polyvinylidene fluoride according to mass parts; in the raw materials of the hydrophobic coating, the raw materials of the fusion resin comprise, by mass, 50-60 parts of polyurethane, 25-30 parts of dimethylformamide and 10-25 parts of methyl ethyl ketone.

Preferably, the anion powder comprises tourmaline powder and rare earth powder, and the proportion of the tourmaline powder to the rare earth powder is 8: 1; the rare earth powder includes yttrium oxide extracted from yttrium phosphate ore, cerium oxide extracted from cerium silica and cerium aluminum.

Preferably, the base is made of fabric, the fabric type of the base comprises a cotton cloth base, a synthetic fiber base and a fiber base, wherein the cotton cloth base comprises plain cloth, bleached cloth, dyed plain cloth base and a canvas base, and the base further comprises a nylon cloth base and a polytetrafluoroethylene-based waterproof and oilproof fabric base.

Preferably, in the fabric using the polytetrafluoroethylene-based waterproof fabric base as the substrate, the waterproof and oilproof fabric base comprises a nylon waterproof breathable fabric, a terylene waterproof breathable fabric, a nylon waterproof moisture-permeable fabric and a terylene waterproof moisture-permeable fabric.

Preferably, the polyurethane is selected from polymeric polyurethanes.

Preferably, the preparation method comprises the following steps: s1, preparing anion powder; respectively grinding yttrium phosphate ore and three kinds of ores of cerite and cerite into powder, mixing, filtering the mixed anion powder by a 600-mesh filter to obtain pure ore powder, carrying out hot melting on the ore powder, cooling and grinding into powder to obtain anion powder; s2, preparing a resin layer; mixing polyurethane, a plasticizer, anion powder, a coupling agent, a dispersing agent, a stabilizing agent and dimethylformamide, mixing and heating at 95-110 ℃, cooling to obtain a resin layer, and S3 mixing and tanning; heating the ETFE, the perfluoroalkyl compound and the polyvinylidene fluoride, stirring and mixing to prepare an addition layer, and superposing and hot melting the substrate, the resin layer and the addition layer to obtain the synthetic leather.

Preferably, the ore powder is put into a fusion furnace and heated to 800-900 ℃, stirred for hot melting, cooled to obtain fusion stone, ground to obtain anion powder, ground for multiple times and filtered by 1200 meshes to obtain the anion powder.

The invention has the beneficial effects that: (1) the negative ion powder adopted by the invention is derived from the mixture of tourmaline, acid yttrium ore, cerium silica and cerite, and the degree of the released negative ions is higher than that of the prior art and is more stable; (2) the invention adopts ETFFE which has both wear resistance and water resistance, and has higher sales value and medical care value than the prior art; (3) the process technology adopted by the invention is simpler and more convenient, and is beneficial to process production and popularization.

Drawings

FIG. 1 is a schematic structural view of the artificial leather of the present invention;

fig. 2 is a result of a performance test of the artificial leathers obtained in examples one to three.

Reference numbers in the figures: 1 substrate, 2 resin layer, 3 additional layer.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to specific embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Reference is made to fig. 1-2.

Example one

The negative ion synthetic leather comprises a substrate 1, a resin layer 2 and an additive layer 3 which are mutually stacked, wherein the substrate 1 is a fabric; the bottom material of the resin layer 2 comprises polyurethane, a plasticizer, anion powder, a coupling agent, a dispersing agent, a stabilizing agent and dimethylformamide according to the mass parts; the base material of the addition layer comprises ETFE, perfluoroalkyl and polyvinylidene fluoride according to the mass portion.

In the embodiment, the primer of the resin layer 2 comprises, by mass, 70 parts of polyurethane, 15 parts of a plasticizer, 15 parts of anion powder, 1 part of a coupling agent, 2 parts of a dispersant and 1.5 parts of a stabilizer; the base material of the added layer comprises 60 parts of ETFE, 15 parts of perfluoroalkyl and 10 parts of polyvinylidene fluoride according to mass parts; in the raw materials of the hydrophobic coating, the raw materials of the fusion resin comprise 50 parts of polyurethane, 25 parts of dimethylformamide and 10 parts of methyl ethyl ketone by mass percent.

In the embodiment, the anion powder comprises tourmaline powder and rare earth powder, and the ratio of the tourmaline powder to the rare earth powder is 8: 1; the rare earth powder includes yttrium oxide extracted from yttrium phosphate ore, cerium oxide extracted from cerium silica and cerium aluminum.

In this embodiment, the substrate is made of fabric, and the fabric type of the substrate 1 includes cotton cloth base, synthetic fiber base and fiber base, wherein the cotton cloth base includes plain cloth, bleached cloth, dyed plain cloth base and canvas base, and the substrate further includes nylon cloth base and polytetrafluoroethylene-based waterproof and oilproof fabric base.

In this embodiment, in the fabric using the polytetrafluoroethylene-based waterproof fabric as the substrate, the waterproof and oilproof fabric includes a nylon waterproof breathable fabric, a polyester waterproof breathable fabric, a nylon waterproof moisture-permeable fabric, and a polyester waterproof moisture-permeable fabric.

In this embodiment, the polyurethane is selected from polymeric polyurethanes.

In this example, the preparation method comprises the following steps: s1, preparing anion powder; respectively grinding yttrium phosphate ore and three kinds of ores of cerite and cerite into powder, mixing, filtering the mixed anion powder by a 600-mesh filter to obtain pure ore powder, carrying out hot melting on the ore powder, cooling and grinding into powder to obtain anion powder; s2 preparing a resin layer 2; mixing polyurethane, a plasticizer, anion powder, a coupling agent, a dispersing agent, a stabilizing agent and dimethylformamide, mixing and heating at 100 ℃, cooling to obtain a resin layer 2, and S3 mixing and tanning; heating ETFE, perfluoroalkyl compound and polyvinylidene fluoride, stirring and mixing to prepare an addition layer 3, and superposing and hot melting the substrate 1, the resin layer 2 and the addition layer 3 to obtain the synthetic leather.

In the embodiment, ore powder is put into a fusion furnace and heated to 850 ℃, stirred for hot melting, cooled to obtain fused stone, the fused stone is ground to obtain anion powder, the anion powder is ground for multiple times, and 1200-mesh filtering is performed to obtain anion powder.

Example two

The negative ion synthetic leather comprises a substrate 1, a resin layer 2 and an additive layer 3 which are mutually stacked, wherein the substrate 1 is a fabric; the bottom material of the resin layer 2 comprises polyurethane, a plasticizer, anion powder, a coupling agent, a dispersing agent, a stabilizing agent and dimethylformamide according to the mass parts; the base material of the addition layer comprises ETFE, perfluoroalkyl and polyvinylidene fluoride according to the mass portion.

In the embodiment, the primer of the resin layer 2 comprises, by mass, 80 parts of polyurethane, 25 parts of a plasticizer, 25 parts of anion powder, 5 parts of a coupling agent, 4 parts of a dispersant and 5 parts of a stabilizer; the base material of the addition layer comprises 70 parts of ETFE, 20 parts of perfluoroalkyl and 15 parts of polyvinylidene fluoride according to mass parts; in the raw materials of the hydrophobic coating, the raw materials of the fusion resin comprise, by mass, 60 parts of polyurethane, 30 parts of dimethylformamide and 25 parts of methyl ethyl ketone.

In the embodiment, the anion powder comprises tourmaline powder and rare earth powder, and the ratio of the tourmaline powder to the rare earth powder is 8: 1; the rare earth powder includes yttrium oxide extracted from yttrium phosphate ore, cerium oxide extracted from cerium silica and cerium aluminum.

In this embodiment, the substrate is made of fabric, and the fabric type of the substrate 1 includes cotton cloth base, synthetic fiber base and fiber base, wherein the cotton cloth base includes plain cloth, bleached cloth, dyed plain cloth base and canvas base, and the substrate further includes nylon cloth base and polytetrafluoroethylene-based waterproof and oilproof fabric base.

In this embodiment, in the fabric using the polytetrafluoroethylene-based waterproof fabric as the substrate, the waterproof and oilproof fabric includes a nylon waterproof breathable fabric, a polyester waterproof breathable fabric, a nylon waterproof moisture-permeable fabric, and a polyester waterproof moisture-permeable fabric.

In this embodiment, the polyurethane is selected from polymeric polyurethanes.

In this example, the preparation method comprises the following steps: s1, preparing anion powder; respectively grinding yttrium phosphate ore and three kinds of ores of cerite and cerite into powder, mixing, filtering the mixed anion powder by a 600-mesh filter to obtain pure ore powder, carrying out hot melting on the ore powder, cooling and grinding into powder to obtain anion powder; s2 preparing a resin layer 2; mixing polyurethane, a plasticizer, anion powder, a coupling agent, a dispersing agent, a stabilizing agent and dimethylformamide, mixing and heating at 100 ℃, cooling to obtain a resin layer 2, and S3 mixing and tanning; heating ETFE, perfluoroalkyl compound and polyvinylidene fluoride, stirring and mixing to prepare an addition layer 3, and superposing and hot melting the substrate 1, the resin layer 2 and the addition layer 3 to obtain the synthetic leather.

In the embodiment, ore powder is put into a fusion furnace and heated to 850 ℃, stirred for hot melting, cooled to obtain fused stone, the fused stone is ground to obtain anion powder, the anion powder is ground for multiple times, and 1200-mesh filtering is performed to obtain anion powder.

EXAMPLE III

The negative ion synthetic leather comprises a substrate 1, a resin layer 2 and an additive layer 3 which are mutually stacked, wherein the substrate 1 is a fabric; the bottom material of the resin layer 2 comprises polyurethane, a plasticizer, anion powder, a coupling agent, a dispersing agent, a stabilizing agent and dimethylformamide according to the mass parts; the base material of the addition layer comprises ETFE, perfluoroalkyl and polyvinylidene fluoride according to the mass portion.

In the embodiment, the primer of the resin layer 2 comprises 75 parts by mass of polyurethane, 20 parts by mass of plasticizer, 20 parts by mass of anion powder, 3 parts by mass of coupling agent, 3 parts by mass of dispersant and 4 parts by mass of stabilizer; the base material of the addition layer comprises 65 parts of ETFE, 18 parts of perfluoroalkyl and 13 parts of polyvinylidene fluoride according to mass parts; in the raw materials of the hydrophobic coating, the raw materials of the fusion resin comprise 55 parts of polyurethane, 28 parts of dimethylformamide and 20 parts of methyl ethyl ketone by mass percent.

In the embodiment, the anion powder comprises tourmaline powder and rare earth powder, and the ratio of the tourmaline powder to the rare earth powder is 8: 1; the rare earth powder includes yttrium oxide extracted from yttrium phosphate ore, cerium oxide extracted from cerium silica and cerium aluminum.

In this embodiment, the substrate is made of fabric, and the fabric type of the substrate 1 includes cotton cloth base, synthetic fiber base and fiber base, wherein the cotton cloth base includes plain cloth, bleached cloth, dyed plain cloth base and canvas base, and the substrate further includes nylon cloth base and polytetrafluoroethylene-based waterproof and oilproof fabric base.

In this embodiment, in the fabric using the polytetrafluoroethylene-based waterproof fabric as the substrate, the waterproof and oilproof fabric includes a nylon waterproof breathable fabric, a polyester waterproof breathable fabric, a nylon waterproof moisture-permeable fabric, and a polyester waterproof moisture-permeable fabric.

In this embodiment, the polyurethane is selected from polymeric polyurethanes.

In this example, the preparation method comprises the following steps: s1, preparing anion powder; respectively grinding yttrium phosphate ore and three kinds of ores of cerite and cerite into powder, mixing, filtering the mixed anion powder by a 600-mesh filter to obtain pure ore powder, carrying out hot melting on the ore powder, cooling and grinding into powder to obtain anion powder; s2 preparing a resin layer 2; mixing polyurethane, a plasticizer, anion powder, a coupling agent, a dispersing agent, a stabilizing agent and dimethylformamide, mixing and heating at 100 ℃, cooling to obtain a resin layer 2, and S3 mixing and tanning; heating ETFE, perfluoroalkyl compound and polyvinylidene fluoride, stirring and mixing to prepare an addition layer 3, and superposing and hot melting the substrate 1, the resin layer 2 and the addition layer 3 to obtain the synthetic leather.

In the embodiment, ore powder is put into a fusion furnace and heated to 850 ℃, stirred for hot melting, cooled to obtain fused stone, the fused stone is ground to obtain anion powder, the anion powder is ground for multiple times, and 1200-mesh filtering is performed to obtain anion powder.

The synthetic leather obtained in the three embodiments is respectively subjected to wear resistance, waterproofness and the degree of releasing negative ions in unit time (mainly the proportion of the negative ions in a test box), so that the basic performances of the synthetic leather in the invention, such as the wear resistance, the waterproofness and the like, can be obviously shown to meet the market selling standard, and the degree of releasing the negative ions is also obviously improved on the basis, so that the synthetic leather is beneficial to the health of a wearer and has medical health care value.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.