CN115262240A - Antibacterial polyurethane synthetic leather for shoe linings and preparation method thereof - Google Patents

Antibacterial polyurethane synthetic leather for shoe linings and preparation method thereof Download PDF

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Publication number
CN115262240A
CN115262240A CN202210526214.7A CN202210526214A CN115262240A CN 115262240 A CN115262240 A CN 115262240A CN 202210526214 A CN202210526214 A CN 202210526214A CN 115262240 A CN115262240 A CN 115262240A
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layer
antibacterial
resin slurry
drying
coating
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沈连根
严雪峰
胡丽贞
叶琦
王旭
鲁华
周操
冯伟业
朱丽娜
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Zhejiang Hexin New Material Co ltd
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Zhejiang Hexin New Material Co ltd
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/121—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyesters, polycarbonates, alkyds
    • D06N3/123—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyesters, polycarbonates, alkyds with polyesters
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0004—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using ultra-fine two-component fibres, e.g. island/sea, or ultra-fine one component fibres (< 1 denier)
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • D06N3/0061—Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
    • D06N3/0077—Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
    • D06N3/0095—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by inversion technique; by transfer processes
    • D06N3/0097—Release surface, e.g. separation sheets; Silicone papers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2209/00—Properties of the materials
    • D06N2209/16—Properties of the materials having other properties
    • D06N2209/1671—Resistance to bacteria, mildew, mould, fungi
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2211/00—Specially adapted uses
    • D06N2211/10—Clothing
    • D06N2211/106—Footwear
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2211/00—Specially adapted uses
    • D06N2211/12—Decorative or sun protection articles
    • D06N2211/28—Artificial leather
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2213/00—Others characteristics
    • D06N2213/03—Fibrous web coated on one side with at least two layers of the same polymer type, e.g. two coatings of polyolefin

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)

Abstract

The invention provides an antibacterial polyurethane synthetic leather for shoe linings, which comprises a surface layer, a middle layer, a bonding layer and a bottom layer which are sequentially attached from outside to inside; the surface layer is made of surface layer resin slurry; the intermediate layer is made of intermediate layer resin slurry; the adhesive layer is made of an adhesive layer resin paste. According to the antibacterial polyurethane synthetic leather for the shoe lining, disclosed by the invention, the formula of the antibacterial epidemic prevention coating of the shoe lining leather is optimized, and the surface antibacterial auxiliary agent is added, so that the product can effectively kill fungi such as escherichia coli and staphylococcus aureus, and the antibacterial effective inhibition rate reaches 99.9%. The invention also provides a preparation method of the antibacterial polyurethane synthetic leather for the shoe linings, which comprises the steps of preparing sheet leather dyed microfiber through the procedures of sheet leather, dyeing, rubbing and the like, realizing mould-proof and antibacterial pattern surfacing through a dry method, and realizing the possibility of pattern diversity at low cost by a pattern roller embossing transfer method, and meanwhile, the cost is reduced, the operation is simple, and the possibility of pattern diversity at low cost is realized.

Description

Antibacterial polyurethane synthetic leather for shoe linings and preparation method thereof
Technical Field
The invention relates to the technical field of polyurethane, in particular to antibacterial polyurethane synthetic leather for shoe linings and a preparation method thereof.
Background
The danger of viruses is widely recognized, and antibacterial materials are widely used as novel functional materials capable of inhibiting or killing bacteria on the surfaces of objects in the fields of household appliances, automobiles, medical treatment, textiles, daily chemicals, packaging, building materials and the like. Therefore, the research and development of materials and products with antibacterial function have important significance for social production and people's life.
In the current shoe lining materials, the application of high-grade shoes is cow leather or pigskin, so that the shoes are comfortable to wear. However, shoes made of leather such as cow leather or pig skin cause serious pollution during production, and the shoes contain heavy metals such as hexavalent chromium, which are harmful to human bodies. Polyurethane (PU) coated products for low-grade shoes are prone to damage and air-tight when worn and uncomfortable due to various physical properties of the PU coated products. At present, people change a plurality of habits of going on a journey, wearing and consuming, pay more attention to the practicability of personal protection and consumption products, and the development significance of antibacterial and epidemic-prevention shoe lining leather products is great.
Disclosure of Invention
Aiming at the technical problems, the invention aims to provide the polyurethane synthetic leather for the antibacterial shoe lining, and develops a formula of the antibacterial and epidemic prevention coating of the shoe lining leather. The invention also provides a preparation method of the antibacterial polyurethane synthetic leather for the shoe lining, which adopts a surface coating process with fine skin feel and a variable multi-end embossing process.
The technical scheme adopted by the invention is as follows:
an antibacterial polyurethane synthetic leather for shoe linings comprises a surface layer, a middle layer, a bonding layer and a bottom layer which are sequentially attached from outside to inside; the surface layer is made of surface layer resin slurry; the intermediate layer is made of intermediate layer resin slurry; the adhesive layer is made of adhesive layer resin slurry;
the surface resin slurry is prepared from the following components in parts by weight:
Figure RE-GDA0003789727350000011
Figure RE-GDA0003789727350000021
the middle layer resin slurry is prepared from the following components in parts by weight:
Figure RE-GDA0003789727350000022
the resin slurry of the adhesive layer is prepared from the following components in parts by weight:
Figure RE-GDA0003789727350000023
the invention relates to an antibacterial polyurethane synthetic leather for shoe linings, wherein a surface layer resin slurry is prepared from the following components in parts by weight:
Figure RE-GDA0003789727350000024
the middle layer resin slurry is prepared from the following components in parts by weight:
Figure RE-GDA0003789727350000025
the resin slurry of the adhesive layer is prepared from the following components in parts by weight:
Figure RE-GDA0003789727350000026
Figure RE-GDA0003789727350000031
the antibacterial polyurethane synthetic leather for shoe linings is characterized in that the thickness of the surface layer is 0.01-0.02mm, the thickness of the middle layer is 0.02-0.2mm, and the thickness of the adhesion layer is 0.02-0.05mm.
The invention relates to an antibacterial polyurethane synthetic leather for shoe linings, wherein the bottom layer is a piece of leather dyed microfiber.
The antibacterial polyurethane synthetic leather for shoe linings is characterized in that the thickness of the sheet dyeing microfiber is 0.5-0.65mm.
The antibacterial polyurethane synthetic leather for shoe linings is characterized in that the viscosity of the surface layer resin slurry is 2000-6000CPS/25 ℃, and the coating weight is 160 +/-20 g/m; the viscosity of the middle layer resin slurry is 2000-6000CPS/25 ℃, and the coating weight is 160 +/-20 g/m; the viscosity of the resin slurry of the next layer is 8000-12000CPS/25 ℃, and the coating weight is 200 +/-20 g/m.
The preparation method of the antibacterial polyurethane synthetic leather for the shoe lining comprises the following steps:
(1) Preparing a surface layer: preparing the surface resin slurry according to the proportion, coating the surface resin slurry on release paper, wherein the coating knife position is 0.1-0.2mm, drying in an oven at the temperature of 60-125 ℃ for 2-3min, and transferring the lines of the release paper to the surface; the surface resin slurry is added with an antibacterial auxiliary agent to inhibit the growth of surface microorganisms, so that the product has a safe and long-acting antibacterial effect;
(2) Preparing an intermediate layer: blending the intermediate layer resin slurry according to the proportion, then coating the intermediate layer resin slurry on the surface layer dried in the step (1), wherein the coating knife position is 0.1-0.2mm, and drying in a drying oven at the temperature of 60-125 ℃ for 2-3min;
(3) Preparation of a subsequent layer: preparing the resin slurry of the subsequent layer according to the proportion, coating the prepared polyester resin slurry on the dried intermediate layer coating with a coating knife position of 0.1-0.2mm, drying the base slurry in an oven at the temperature of 120-140 ℃ for 3-4min;
(4) Bonding: after the pre-drying of the adhesion layer in the oven is finished, the adhesion position is bonded, and the bonding of the sheet dyeing microfiber and the adhesion layer is realized through the setting of bonding pressure and clearance; the temperature of the oven is 120 ℃, and the pre-drying time is 40-60S;
(5) Rolling: the winding position is separated from the release paper and the finished product, and the finished product is directly wound.
The invention relates to a preparation method of polyurethane synthetic leather for an antibacterial shoe lining, wherein the preparation method of the sheet dyeing microfiber in step (4) comprises the following steps: carrying out sheet pairing on the 1.2-1.3mm microfiber by a sheet splitting machine to obtain microfiber with the thickness of 0.6mm, wherein the same door width control range is 0.05mm; then dyeing treatment is carried out; and finally, rubbing by using dry rubbing cloth and wet rubbing cloth respectively to obtain the sheet skin dyed microfiber.
The preparation method of the antibacterial polyurethane synthetic leather for the shoe lining comprises the following steps of (1) heating in a gradient manner at a temperature gradient of 60/80/100/125 ℃ during drying in an oven; the temperature gradient of drying in the oven in the step (2) is 60/80/100/125 ℃ gradient temperature rise; when drying in the oven in the step (3), the temperature gradient is increased by gradient of 120/130/140/140/140/140/140 ℃; the temperature at the time of pre-drying in the oven in step (4) was 120 ℃.
The preparation method of the antibacterial polyurethane synthetic leather for the shoe lining comprises the step (4), wherein the attaching pressure is 0.5mpa, and the gap is 0.3-0.4mm.
The invention has the beneficial effects that:
the composite material for the waterborne polyurethane shoe is prepared by optimizing the formula of the antibacterial and epidemic prevention coating of the lining leather of the shoe, adding the surface antibacterial auxiliary agent, and passing a third-party antibacterial test: mainly tests the escherichia coli and the staphylococcus aureus, which can well prevent bacterial infection and ensure that the whole product achieves the effects of antibiosis and epidemic prevention; the product can effectively kill fungi such as escherichia coli, staphylococcus aureus and the like, and the antibacterial effective inhibition rate reaches 99.9%.
The preparation method of the composite material for the waterborne polyurethane shoe, disclosed by the invention, is used for preparing the sheet dyeing microfiber through the procedures of sheet stripping, dyeing, rubbing and the like. The traditional release paper transfer method is abandoned, the pattern mould-proof and antibacterial dough making is performed by a dry method, and then the pattern roller embossing transfer method is used, so that the diversity of the surface patterns is solved, the cost is reduced, the operation is simple, and the possibility of the diversity of the low-cost patterns is realized.
The present invention will be further described with reference to the following specific examples.
Detailed Description
The sources of the raw materials in the following examples are: the polyester resin is polyester resin HX-6081 (30 wt%) which is purchased from Hexin science and technology Limited; the antibacterial auxiliary agent JN3-127 and the silver ion antibacterial agent are purchased from Fuji chemical industry (Shanghai) Co.
Example 1
An antibacterial polyurethane synthetic leather for shoe linings comprises a surface layer, a middle layer, a bonding layer and a bottom layer which are sequentially attached from outside to inside; the surface layer is made of surface layer resin slurry; the intermediate layer is made of intermediate layer resin slurry; the adhesive layer is made of adhesive layer resin slurry;
the surface resin slurry is prepared from the following components in parts by weight:
Figure RE-GDA0003789727350000041
Figure RE-GDA0003789727350000051
the middle layer resin slurry is prepared from the following components in parts by weight:
Figure RE-GDA0003789727350000052
the resin slurry of the adhesive layer is prepared from the following components in parts by weight:
Figure RE-GDA0003789727350000053
the viscosity of the surface resin slurry is 3000CPS/25 ℃, and the coating weight is 160g/m; the viscosity of the middle layer resin sizing agent is 4500CPS/25 ℃, and the coating weight is 160g/m; the viscosity of the resin slurry for the subsequent layer was 10000CPS/25 ℃ and the coating weight was 200g/m.
The bottom layer is the flake dyeing microfiber, and the thickness of the flake dyeing microfiber is 0.6mm.
The preparation method of the antibacterial polyurethane synthetic leather for the shoe lining comprises the following steps:
(1) Preparing a surface layer: preparing the surface layer resin slurry according to the proportion, coating the surface layer resin slurry on release paper, coating the release paper with the coating position of 0.12mm, drying in an oven, wherein the temperature of the oven is 60/80/100/125 ℃, the temperature is increased in a gradient manner, the drying time is 2.5min, the grains of the release paper are transferred to the surface, and the thickness of the film after the surface layer is dried is 0.015mm;
the surface resin slurry is added with an antibacterial auxiliary agent to inhibit the growth of surface microorganisms, so that the product has a safe and long-acting antibacterial effect;
(2) Preparing an intermediate layer: blending the intermediate layer resin slurry according to a ratio, coating the intermediate layer resin slurry on the surface layer dried in the step (1), wherein the coating position is 0.15mm, drying in a drying oven, the temperature of the drying oven is 60/80/100/125 ℃, the temperature is increased in a gradient manner, each temperature zone is 40s, the drying time is about 3min, and the thickness of the intermediate layer after drying is 0.15mm;
(3) Preparation of a subsequent layer: blending the resin slurry of the next layer according to the proportion, coating the resin slurry on the dried middle layer in the step (2), wherein the coating knife position is 0.15mm, drying in a drying oven, the temperature of the drying oven is 120/130/140/140/140/140/140 ℃, the temperature is increased in a gradient manner, the drying time is 3min, and the thickness of the dried film is 0.02mm;
(4) Attaching: after the pre-drying of the adhesion layer is finished, the adhesion position realizes the adhesion of the sheet dyeing microfiber and the adhesion layer through the setting of adhesion pressure and clearance; the temperature of the pre-drying oven is 120 ℃, and the pre-drying time is 40S; the bonding pressure is 0.5mpa, and the gap is 0.3mm;
the preparation method of the flake dyeing microfiber comprises the following steps: carrying out sheet-aligning on the 1.2mm microfiber by a sheet-aligning machine to obtain the microfiber with the thickness of 0.6mm, wherein the same door width control range is 0.05mm; performing dyeing treatment, wherein the dry and wet rubbing fastness is executed according to GB/T3920; finally, rubbing by using dry rubbing cloth and wet rubbing cloth respectively, and evaluating staining of the rubbing cloth by using a gray sample card to obtain the sheet dyeing microfiber;
(5) Winding: the winding position is separated from the release paper and the finished product, and the finished product is directly wound.
The performance of the polyurethane synthetic leather for use in the antibacterial shoe obtained in example 1 was measured, and the results are shown in tables 1 and 2.
Table 1 test results of the polyurethane synthetic leather for antibacterial shoe linings described in example 1
Figure RE-GDA0003789727350000061
Table 2 antibacterial test results for polyurethane synthetic leather described in example 1
Figure RE-GDA0003789727350000071
Example 2
An antibacterial polyurethane synthetic leather for shoe linings comprises a surface layer, a middle layer, a bonding layer and a bottom layer which are sequentially attached from outside to inside; the surface layer is made of surface layer resin slurry; the intermediate layer is made of intermediate layer resin slurry; the adhesive layer is made of adhesive layer resin slurry;
the surface resin slurry is prepared from the following components in parts by weight:
Figure RE-GDA0003789727350000072
the middle layer resin slurry is prepared from the following components in parts by weight:
Figure RE-GDA0003789727350000073
the resin slurry of the adhesive layer is prepared from the following components in parts by weight:
Figure RE-GDA0003789727350000074
the viscosity of the surface layer resin slurry is 3200CPS/25 ℃, and the coating weight is 165g/m; the viscosity of the middle layer resin slurry is 4700CPS/25 ℃, and the coating weight is 165g/m; the viscosity of the resin slurry for the subsequent layer was 10500CPS/25 ℃ and the coating weight was 200g/m.
The bottom layer is the flake dyeing microfiber, and the thickness of the flake dyeing microfiber is 0.55mm.
The preparation method of the antibacterial polyurethane synthetic leather for the shoe lining comprises the following steps:
(1) Preparing a surface layer: preparing the surface layer resin slurry according to the proportion, coating the surface layer resin slurry on release paper, coating the release paper with the coating position of 0.12mm, drying in an oven, performing gradient temperature rise at the oven temperature of 60/80/100/125 ℃, wherein the drying time is 2.5min, the grains of the release paper are transferred to the surface, and the film thickness after the surface layer is dried is 0.017mm;
the surface resin slurry is added with an antibacterial auxiliary agent to inhibit the growth of surface microorganisms, so that the product has a safe and long-acting antibacterial effect;
(2) Preparing an intermediate layer: blending the intermediate layer resin slurry according to a ratio, coating the intermediate layer resin slurry on the surface layer dried in the step (1), wherein the coating position is 0.15mm, drying in a drying oven, the temperature of the drying oven is 60/80/100/125 ℃, the temperature is increased in a gradient manner, each temperature zone is 40s, the drying time is 3min, and the thickness of the intermediate layer after drying is 0.17mm;
(3) Preparation of a subsequent layer: blending the resin slurry of the subsequent layer according to the proportion, coating the resin slurry on the dried intermediate layer in the step (2), wherein the coating position is 0.15mm, drying in a drying oven, the temperature of the drying oven is 120/130/140/140/140/140/140 ℃, the temperature is increased in a gradient manner, the drying time is 3min, and the thickness of the dried film is 0.021mm;
(4) Bonding: after the pre-drying of the adhesion layer is finished, the adhesion position realizes the adhesion of the sheet dyeing microfiber and the adhesion layer through the setting of adhesion pressure and clearance; the temperature of the pre-drying oven is 120 ℃, and the pre-drying time is 40S; the bonding pressure is 0.5mpa, and the gap is 0.3mm;
the preparation method of the flake dyeing microfiber comprises the following steps: carrying out sheet-aligning on the 1.2mm microfiber by a sheet-aligning machine to obtain the microfiber with the thickness of 0.6mm, wherein the same door width control range is 0.05mm; performing dyeing treatment, wherein the dry and wet rubbing fastness is executed according to GB/T3920; finally, rubbing by using dry rubbing cloth and wet rubbing cloth respectively, and evaluating staining of the rubbing cloth by using a gray sample card to obtain the sheet dyeing microfiber;
(5) Winding: the winding position is separated from the release paper and the finished product, and the finished product is directly wound.
The performance of the polyurethane synthetic leather for the antibacterial shoe lining prepared in example 1 was tested, and the test results are shown in tables 3 and 4.
Table 3 test results of the polyurethane synthetic leather for antibacterial shoe linings described in example 2
Figure RE-GDA0003789727350000091
Table 4 antibacterial test results for polyurethane synthetic leather described in example 2
Figure RE-GDA0003789727350000092
Example 3
An antibacterial polyurethane synthetic leather for shoe linings comprises a surface layer, a middle layer, a bonding layer and a bottom layer which are sequentially attached from outside to inside; the surface layer is made of surface layer resin slurry; the intermediate layer is made of intermediate layer resin slurry; the adhesive layer is made of adhesive layer resin slurry;
the surface resin slurry is prepared from the following components in parts by weight:
Figure RE-GDA0003789727350000093
Figure RE-GDA0003789727350000101
the middle layer resin slurry is prepared from the following components in parts by weight:
Figure RE-GDA0003789727350000102
the resin slurry for the next layer is prepared from the following components in parts by weight:
Figure RE-GDA0003789727350000103
the viscosity of the surface layer resin sizing agent is 2800CPS/25 ℃, and the coating weight is 155g/m; the viscosity of the middle layer resin slurry is 4300CPS/25 ℃, and the coating weight is 160g/m; the viscosity of the resin slurry for the subsequent layer was 10800CPS/25 ℃ and the coating weight was 200g/m.
The bottom layer is the slice skin dyeing microfiber, and the thickness of slice skin dyeing microfiber is 0.61mm.
The preparation method of the polyurethane synthetic leather for the antibacterial shoe lining comprises the following steps:
(1) Preparing a surface layer: preparing the surface layer resin slurry according to the proportion, coating the surface layer resin slurry on release paper, wherein the coating knife position is 0.12mm, drying in an oven, the temperature of the oven is 60/80/100/125 ℃, the temperature is increased in a gradient manner, the drying time is 2.5min, the grains of the release paper are transferred to the surface, and the thickness of a film after the surface layer is dried is 0.014mm;
the surface resin slurry is added with an antibacterial auxiliary agent to inhibit the growth of surface microorganisms, so that the product has a safe and long-acting antibacterial effect;
(2) Preparing an intermediate layer: preparing the intermediate layer resin slurry according to a ratio, coating the intermediate layer resin slurry on the surface layer dried in the step (1), wherein the coating position is 0.15mm, drying in a drying oven, the temperature of the drying oven is 60/80/100/125 ℃, the temperature is increased in a gradient manner, each temperature zone is dried for 3min within 40S, and the thickness of the intermediate layer after drying is 0.16mm;
(3) Preparation of a subsequent layer: blending the resin slurry of the next layer according to the proportion, then coating the resin slurry on the dried middle layer in the step (2), coating the resin slurry with a knife position of 0.15mm, drying in a drying oven at the temperature of 120/130/140/140/140/140/140 ℃ for gradient temperature rise for 3min, and drying to form a film with the thickness of 0.022mm;
(4) Bonding: after the pre-drying of the adhesion layer is finished, the adhesion position realizes the adhesion of the sheet dyeing microfiber and the adhesion layer through the setting of adhesion pressure and clearance; the temperature of the pre-drying oven is 120 ℃, and the pre-drying time is 40S; the bonding pressure is 0.5mpa, and the gap is 0.3mm;
the preparation method of the flake dyeing microfiber comprises the following steps: carrying out sheet-aligning on the 1.2mm microfiber by a sheet-aligning machine to obtain the microfiber with the thickness of 0.6mm, wherein the same door width control range is 0.05mm; performing dyeing treatment, wherein the dry and wet rubbing fastness is performed according to GB/T3920; finally, rubbing by using dry rubbing cloth and wet rubbing cloth respectively, and evaluating staining of the rubbing cloth by using a gray sample card to obtain the sheet dyeing microfiber;
(5) Winding: the winding position is separated from the release paper and the finished product, and the finished product is directly wound.
The performance of the polyurethane synthetic leather for use in the antibacterial shoe obtained in example 1 was measured, and the results are shown in tables 5 and 6.
Table 5 test results of the polyurethane synthetic leather for antibacterial shoe linings described in example 3
Figure RE-GDA0003789727350000111
Table 6 antibacterial test results for polyurethane synthetic leather described in example 2
Figure RE-GDA0003789727350000112
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims (10)

1. The utility model provides an antibiotic formula is polyurethane synthetic leather for shoe lining which characterized in that: the adhesive comprises a surface layer, a middle layer, a bonding layer and a bottom layer which are sequentially attached from outside to inside; the surface layer is made of surface layer resin slurry; the intermediate layer is made of intermediate layer resin slurry; the adhesive layer is made of adhesive layer resin slurry;
the surface resin slurry is prepared from the following components in parts by weight:
Figure RE-FDA0003789727340000011
the middle layer resin slurry is prepared from the following components in parts by weight:
Figure RE-FDA0003789727340000012
the resin slurry of the adhesive layer is prepared from the following components in parts by weight:
Figure RE-FDA0003789727340000013
2. the antibacterial polyurethane leather for shoe linings of claim 1, which is characterized in that: the surface resin slurry is prepared from the following components in parts by weight:
Figure RE-FDA0003789727340000014
the middle layer resin slurry is prepared from the following components in parts by weight:
Figure RE-FDA0003789727340000015
Figure RE-FDA0003789727340000021
the resin slurry for the next layer is prepared from the following components in parts by weight:
Figure RE-FDA0003789727340000022
3. the antibacterial polyurethane leather for shoe linings of claim 1, which is characterized in that: 0.01-0.02mm, the thickness of the middle layer is 0.02-0.2mm, and the thickness of the adhesion layer is 0.02-0.05mm.
4. The antibacterial polyurethane leather for shoe linings of claim 1, which is characterized in that: the bottom layer is a piece of leather dyed microfiber.
5. The antibacterial polyurethane synthetic leather for shoe linings of claim 1, characterized in that: the thickness of the flake dyeing microfiber is 0.5-0.6mm.
6. The antibacterial polyurethane synthetic leather for shoe linings according to any one of claims 1 to 5, characterized in that: the viscosity of the surface resin sizing agent is 2000-6000CPS/25 ℃, and the coating weight is 160 +/-20 g/m; the viscosity of the middle layer resin sizing agent is 2000-6000CPS/25 ℃, and the coating weight is 160 +/-20 g/m; the viscosity of the resin slurry of the next layer is 8000-12000CPS/25 ℃, and the coating weight is 200 +/-20 g/m.
7. The method for preparing the polyurethane leather for antibacterial shoe linings of any one of claims 1 to 6, characterized in that: the method comprises the following steps:
(1) Preparing a surface layer: preparing the surface resin slurry according to the proportion, coating the surface resin slurry on release paper, wherein the coating knife position is 0.1-0.2mm, drying in an oven at the temperature of 60-125 ℃ for 2-3min, and transferring the grains of the release paper to the surface; the surface resin slurry is added with an antibacterial auxiliary agent to inhibit the growth of surface microorganisms, so that the product has a safe and long-acting antibacterial effect;
(2) Preparing an intermediate layer: preparing the intermediate layer resin slurry according to the proportion, coating the intermediate layer resin slurry on the surface layer dried in the step (1) with a coating knife position of 0.1-0.2mm, and drying in a drying oven at the temperature of 60-125 ℃ for 2-3min;
(3) Preparation of a subsequent layer: blending the resin slurry of the adhesion layer according to the proportion, coating the blended polyester resin slurry on the dried intermediate layer coating with the coating knife position of 0.1-0.2mm, drying the base slurry in an oven at the temperature of 120-140 ℃ for 3-4min;
(4) Attaching: after the pre-drying of the adhesion layer in the oven is finished, the adhesion position is bonded, and the bonding of the sheet dyeing microfiber and the adhesion layer is realized through the setting of the adhesion pressure and the gap; the temperature of the oven is 120 ℃, and the pre-drying time is 40-60S;
(5) Winding: the winding position is separated from the release paper and the finished product, and the finished product is directly wound.
8. The method for preparing the polyurethane synthetic leather for the antibacterial shoe lining according to claim 6, wherein the method comprises the following steps: the preparation method of the split dyeing microfiber in the step (4) comprises the following steps: carrying out sheet-aligning on the microfiber with the thickness of 1.2-1.3mm by a sheet-aligning machine to obtain the microfiber with the thickness of 0.6mm, wherein the same door width control range is 0.05mm; then dyeing is carried out; and finally, rubbing by using dry rubbing cloth and wet rubbing cloth respectively to obtain the sheet skin dyed microfiber.
9. The method for preparing the polyurethane leather for the antibacterial shoe linings according to claim 7, which is characterized by comprising the following steps: the temperature gradient in the drying in the oven in the step (1) is 60/80/100/125 ℃ gradient temperature rise; the temperature gradient of drying in the oven in the step (2) is 60/80/100/125 ℃ gradient temperature rise; gradient temperature rise is carried out at the temperature gradient of 120/130/140/140/140/140/140 ℃ when drying is carried out in the oven in the step (3); the temperature at the time of pre-drying in the oven in step (4) was 120 ℃.
10. The method for preparing the polyurethane leather for the antibacterial shoe linings according to any one of claims 7 to 9, characterized in that: in the step (4), the attaching pressure is 0.5mpa, and the gap is 0.3-0.4mm.
CN202210526214.7A 2022-05-16 2022-05-16 Antibacterial polyurethane synthetic leather for shoe linings and preparation method thereof Pending CN115262240A (en)

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JP2002038380A (en) * 2000-07-27 2002-02-06 Komatsu Seiren Co Ltd Antibacterial synthetic leather and method for producing the same
CN102182073A (en) * 2011-04-25 2011-09-14 安安(中国)有限公司 Method for manufacturing synthetic leather for mildewproof and antibacterial sneakers
CN105178041A (en) * 2015-08-24 2015-12-23 海宁杰盛新材料有限公司 Production technology of cold-resistant breathable imitated leather coated fabric with concave-convex particles
CN106381721A (en) * 2016-08-30 2017-02-08 安徽安利材料科技股份有限公司 Preparation method of solvent-free sofa furniture microfiber synthetic leather
CN106381722A (en) * 2016-08-31 2017-02-08 安徽安利材料科技股份有限公司 Manufacturing method of polyurethane synthetic leather for police combat and training shoes
CN110205836A (en) * 2019-05-13 2019-09-06 浙江禾欣新材料有限公司 A kind of white shoes super fiber leather and preparation method thereof of resistance to vulcanization xanthochromia
CN111877027A (en) * 2020-07-22 2020-11-03 浙江禾欣新材料有限公司 Antibacterial protective clothing leather and preparation method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002038380A (en) * 2000-07-27 2002-02-06 Komatsu Seiren Co Ltd Antibacterial synthetic leather and method for producing the same
CN102182073A (en) * 2011-04-25 2011-09-14 安安(中国)有限公司 Method for manufacturing synthetic leather for mildewproof and antibacterial sneakers
CN105178041A (en) * 2015-08-24 2015-12-23 海宁杰盛新材料有限公司 Production technology of cold-resistant breathable imitated leather coated fabric with concave-convex particles
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