CN109629249A - A kind of preparation method of water-soluble polyurethane leather beth - Google Patents

A kind of preparation method of water-soluble polyurethane leather beth Download PDF

Info

Publication number
CN109629249A
CN109629249A CN201811498509.8A CN201811498509A CN109629249A CN 109629249 A CN109629249 A CN 109629249A CN 201811498509 A CN201811498509 A CN 201811498509A CN 109629249 A CN109629249 A CN 109629249A
Authority
CN
China
Prior art keywords
parts
water
polyurethane
soluble
base fabric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811498509.8A
Other languages
Chinese (zh)
Inventor
周小平
周文平
钟文华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangxi Zecheng New Materials Co Ltd
Original Assignee
Jiangxi Zecheng New Materials Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangxi Zecheng New Materials Co Ltd filed Critical Jiangxi Zecheng New Materials Co Ltd
Priority to CN201811498509.8A priority Critical patent/CN109629249A/en
Publication of CN109629249A publication Critical patent/CN109629249A/en
Pending legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, 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
    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12Artificial 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
    • D06N3/14Artificial 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 polyurethanes
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, 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
    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0043Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by their foraminous structure; Characteristics of the foamed layer or of cellular layers
    • D06N3/0045Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by their foraminous structure; Characteristics of the foamed layer or of cellular layers obtained by applying a ready-made foam layer; obtained by compressing, crinkling or crushing a foam layer, e.g. Kaschierverfahren für Schaumschicht
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, 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
    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056Artificial 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
    • D06N3/0061Organic 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
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, 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
    • D06N2209/00Properties of the materials
    • D06N2209/10Properties of the materials having mechanical properties
    • D06N2209/103Resistant to mechanical forces, e.g. shock, impact, puncture, flexion, shear, compression, tear
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, 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
    • D06N2209/00Properties of the materials
    • D06N2209/12Permeability or impermeability properties
    • D06N2209/121Permeability to gases, adsorption
    • D06N2209/123Breathable
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, 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
    • D06N2209/00Properties of the materials
    • D06N2209/16Properties of the materials having other properties
    • D06N2209/1685Wear resistance
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, 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
    • D06N2211/00Specially adapted uses
    • D06N2211/12Decorative or sun protection articles
    • D06N2211/28Artificial leather

Abstract

The invention discloses a kind of preparation methods of water-soluble polyurethane leather beth, it is related to waterborne polyurethane synthetic leather preparation technical field, in order to solve the problems, such as the water-soluble polyurethane leather beth stretch-proof of existing preparation method preparation, tear-proof and wear no resistance, steps are as follows: the preparation of base fabric;The preparation of waterborne polyurethane synthetic leather foamed slurry;Coat waterborne polyurethane foaming coating;Foaming washing;Drying, the preparation method of water-soluble polyurethane leather beth of the invention, foamed material foaming is rapid, stability is good, foaming layer foam structure made of it is stable, fine and close, regular, by the way that Tea Saponin, chitosan is added, enable to the viscosity enhancing of slurry, it is even closer in conjunction with base fabric, slurry has the function of good emulsification, dispersion, foaming, wet etc. simultaneously, its synthetic leather bass prepared has good stretch-proof, tear resistance and wearability, can be used for manufacturing various synthetic leather products, has a vast market foreground.

Description

A kind of preparation method of water-soluble polyurethane leather beth
Technical field
The present invention relates in waterborne polyurethane synthetic leather preparation technical field, specifically a kind of waterborne polyurethane synthetic leather shellfish This preparation method.
Background technique
Aqueous polyurethane is to replace organic solvent as the new polyurethane system of decentralized medium using water, and also referred to as water dispersion is poly- Urethane, aqueous polyurethane or water-based polyurethane.Aqueous polyurethane takes water as a solvent, pollution-free, safe and reliable, mechanical performance is excellent Good, the advantages that compatibility is good, easily modified.
Synthetic Leather belongs to one kind of polyurethane elastomer, has soft glossy, naturally, soft, kishke feel Strong appearance, have had excellent performance with substrate bonding, be wear-resistant, flex endurant, the excellent mechanical performance such as anti-aging, while also having The advantages that good, ventilative, washable, easy to process, price is excellent honest and clean for cold resistance, be the ideal substitute of natural leather.
It needs to first pass through wet processing in Synthetic Leather preparation process and water-soluble polyurethane leather beth is made, it is existing Water-soluble polyurethane leather beth preparation method made by water-soluble polyurethane leather beth stretch-proof, tear-proof and Wearability is poor, it is difficult to meet the market demand.
Summary of the invention
The purpose of the present invention is to provide a kind of preparation methods of water-soluble polyurethane leather beth, to solve above-mentioned background The problem of being proposed in technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of preparation method of water-soluble polyurethane leather beth, steps are as follows:
1) preparation of base fabric: ready base fabric is impregnated with by processing solution, base fabric liquid carrying rate is after impregnation 10-30%, then successively carries out heating pressing, press polish and drying and processing to base fabric, and the processing solution includes below according to weight Measure the raw material of part: 1-3 parts of water soluble polymer, 0.5-1.5 parts of metal nitrate, 80-100 parts of water;
2) preparation of waterborne polyurethane synthetic leather foamed slurry: 80-100 parts of aqueous polyurethane, dispersing agent are weighed according to the ratio 0.2-0.4 parts, 1-2 parts of foam stabilizer, 2-4 parts of water-based thickener, 1-3 parts of wetting agent, 0.5-1.5 parts of levelling agent, chitosan 1-5 It is part, 1.5-3 parts of Tea Saponin, powder 6-12 parts modified micaceous;Then raw material is pre-mixed with high-speed mixer, mixing time is 20-30min, mixing speed 800-1000r/min, start micro-bubble generator after the completion, generate 100-200 μm fine Then the micro air bubble is passed through well pre-mixed slurry by bubble, continuously ventilate 30-40min, and bubble diameter can be obtained and be 100-200 μm of waterborne polyurethane synthetic leather foamed slurry;
3) coat waterborne polyurethane foaming coating: base fabric carries out blade coating waterborne polyurethane synthetic leather foamed slurry, in base fabric Surface solidification forms aqueous polyurethane layer, extracts;
4) it after extracting, foams into bamboo vinegar, forms porous polyurethane coating, washed after the completion of foaming;
5) dry: at 130-150 DEG C of temperature after completion step 4), baking oven length is 30-50 meters, linear speed 10-20m/min Under conditions of drying to get required water-soluble polyurethane leather beth.
As a further solution of the present invention: the water soluble polymer be polyvinyl alcohol, cellulose derivative, gelatin, One of modified starch.
As a further solution of the present invention: the metal nitrate is one of sodium nitrate, calcium nitrate, magnesium nitrate.
As a further solution of the present invention: in step 1), described plate is that the heating of six rollers is plated, temperature 140-160 DEG C, calendering temperature is 140-160 DEG C, pressure 2-4MPa;The drying temperature is incremented to 160 DEG C by 120 DEG C.
As a further solution of the present invention: the dispersing agent is lauryl sodium sulfate, polyacrylamide surface is living One of property agent;The foam stabilizer is fatty acid amide surfactants, oxidation ammonium surfactant, cationic surfactant One of;The water-based thickener is water-soluble association type polyurethane thickener or water-soluble cellulose thickener; The wetting agent is anionic organosilicon wetting agent;The levelling agent is organosilicon-modified acrylic class levelling agent.
As a further solution of the present invention: the modified micaceous powder the preparation method is as follows: being in temperature by mica powder 400-500 DEG C roasting 2-6 hours, mica powder after taking 8-12 parts of roastings, 0.1-0.5 parts of gamma-aminopropyl-triethoxy-silanes add Enter ultrasonic disperse 20-30min in 90-100 parts of water;5-10 parts of zinc borates, 2-5 parts of ammonium polyphosphate stirring 20-30min are added, Centrifugation, is drying to obtain, and the supersonic frequency of the ultrasonic disperse is 30-40KHz, ultrasonic power 200-400W, the centrifugation Revolving speed is 5000-7000r/min, and time 10-30min, the temperature of the drying is 80-90 DEG C, and the time is 4-6 hours.
As a further solution of the present invention: the coating weight of the aqueous polyurethane layer is 30-100g/m2.
Compared with prior art, the beneficial effects of the present invention are: the preparation of water-soluble polyurethane leather beth of the invention Method, rapidly, the bubble diameter of the waterborne polyurethane synthetic leather foamed slurry of preparation can reach 100-200 μm for foamed material foaming, Bubble is fine and closely woven uniform and in the same size, and stability is good, and foaming layer foam structure made of it is stable, fine and close, regular, and prepares It is simple for process, it is easy to continuous production, is very suitable to industrialized production;Foamed using bamboo vinegar, it is manufactured at Product tensile strength, Tear strength and wearability all get a promotion, and have the characteristics of soft handle, quality is fine and smooth, good permeability, pass through Tea Saponin, chitosan is added, enables to the viscosity enhancing of slurry, it is even closer in conjunction with base fabric, while there is good cream The functions such as change, dispersion, foaming, wet, the synthetic leather bass of preparation not only have the basic structure of common synthetic leather bass, and And there is good stretch-proof, tear resistance and wearability, it can be used for manufacturing various synthetic leather products, there is wide city Field prospect.
Specific embodiment
Below in conjunction with specific embodiment, technical scheme in the embodiment of the invention is clearly and completely described, shows So, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the reality in the present invention Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to In the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, a kind of preparation method of water-soluble polyurethane leather beth, steps are as follows:
1) preparation of base fabric: ready base fabric is impregnated with by processing solution, base fabric liquid carrying rate is after impregnation 10%, heating pressing, press polish and drying and processing are successively then carried out to base fabric, the processing solution includes below according to parts by weight Raw material: 1 part of water soluble polymer, 0.5 part of metal nitrate, 80 parts of water;
2) preparation of waterborne polyurethane synthetic leather foamed slurry: 80 parts of aqueous polyurethane, dispersing agent 0.2 are weighed according to the ratio Part, 1 part of foam stabilizer, 2 parts of water-based thickener, 1 part of wetting agent, 0.5 part of levelling agent, 1 part of chitosan, 1.5 parts of Tea Saponin, modified cloud 6 parts of female powder;Then raw material is pre-mixed with high-speed mixer, mixing time 20min, mixing speed 800r/min, Start micro-bubble generator after the completion, generates 100-200 μm of micro air bubble, the micro air bubble is then passed through premixing Good slurry, continuously ventilate 30min, and the waterborne polyurethane synthetic leather foamed slurry that bubble diameter is 100-200 μm can be obtained;
3) coat waterborne polyurethane foaming coating: base fabric carries out blade coating waterborne polyurethane synthetic leather foamed slurry, in base fabric Surface solidification forms aqueous polyurethane layer, extracts;
4) it after extracting, foams into bamboo vinegar, forms porous polyurethane coating, washed after the completion of foaming;
5) dry: at 130 DEG C of temperature after completion step 4), baking oven length is 30 meters, and linear speed dries under conditions of being 10m/min It does to get required water-soluble polyurethane leather beth.
Wherein, the water soluble polymer is polyvinyl alcohol.
The metal nitrate is sodium nitrate.
In step 1), described plate is that the heating of six rollers is plated, and temperature is 140 DEG C, and calendering temperature is 140 DEG C, and pressure is 2MPa;The drying temperature is incremented to 160 DEG C by 120 DEG C.
The dispersing agent is lauryl sodium sulfate;The foam stabilizer is fatty acid amide surfactants;The aqueous increasing Thick dose is water-soluble association type polyurethane thickener;The wetting agent is anionic organosilicon wetting agent;The levelling agent For organosilicon-modified acrylic class levelling agent.
Roasting 2 hours the preparation method is as follows: being 400 DEG C in temperature for mica powder for the modified micaceous powder, takes 8 parts of roastings Ultrasonic disperse 20min in 90 parts of water is added in mica powder, 0.1 part of gamma-aminopropyl-triethoxy-silane afterwards;Add 5 parts of boric acid Zinc, 2 parts of ammonium polyphosphate stir 20min, and centrifugation is drying to obtain, and the supersonic frequency of the ultrasonic disperse is 30KHz, ultrasonic power For 200W, the revolving speed of the centrifugation is 5000r/min, and time 10min, the temperature of the drying is 80 DEG C, and the time is 4 small When.
The coating weight of the aqueous polyurethane layer is 30g/m2.
Embodiment 2
In the embodiment of the present invention, a kind of preparation method of water-soluble polyurethane leather beth, steps are as follows:
1) preparation of base fabric: ready base fabric is impregnated with by processing solution, base fabric liquid carrying rate is after impregnation 15%, heating pressing, press polish and drying and processing are successively then carried out to base fabric, the processing solution includes below according to parts by weight Raw material: 1.5 parts of water soluble polymer, 0.8 part of metal nitrate, 85 parts of water;
2) preparation of waterborne polyurethane synthetic leather foamed slurry: 85 parts of aqueous polyurethane, dispersing agent 0.25 are weighed according to the ratio Part, 1.2 parts of foam stabilizer, water-based thickener 2.5 parts, 1.5 parts of wetting agent, 0.8 part of levelling agent, 2 parts of chitosan, 2 parts of Tea Saponin, change 8 parts of mica powder of property;Then raw material is pre-mixed with high-speed mixer, mixing time 22min, mixing speed 850r/ Min starts micro-bubble generator after the completion, generates 100-200 μm of micro air bubble, is then passed through the micro air bubble pre- The slurry mixed, continuously ventilate 32min, and the waterborne polyurethane synthetic leather that bubble diameter is 100-200 μm can be obtained and foam Slurry;
3) coat waterborne polyurethane foaming coating: base fabric carries out blade coating waterborne polyurethane synthetic leather foamed slurry, in base fabric Surface solidification forms aqueous polyurethane layer, extracts;
4) it after extracting, foams into bamboo vinegar, forms porous polyurethane coating, washed after the completion of foaming;
5) dry: at 135 DEG C of temperature after completion step 4), baking oven length is 35 meters, and linear speed dries under conditions of being 12m/min It does to get required water-soluble polyurethane leather beth.
Wherein, the water soluble polymer is cellulose derivative.
The metal nitrate is calcium nitrate.
In step 1), described plate is that the heating of six rollers is plated, and temperature is 145 DEG C, and calendering temperature is 145 DEG C, and pressure is 2MPa;The drying temperature is incremented to 160 DEG C by 120 DEG C.
The dispersing agent is lauryl sodium sulfate;The foam stabilizer is oxidation ammonium surfactant;The aqueous thickening Agent is water-soluble association type polyurethane thickener;The wetting agent is anionic organosilicon wetting agent;The levelling agent is Organosilicon-modified acrylic class levelling agent.
Roasting 2 hours the preparation method is as follows: being 400 DEG C in temperature for mica powder for the modified micaceous powder, takes 8 parts of roastings Ultrasonic disperse 20min in 90 parts of water is added in mica powder, 0.1 part of gamma-aminopropyl-triethoxy-silane afterwards;Add 5 parts of boric acid Zinc, 2 parts of ammonium polyphosphate stir 20min, and centrifugation is drying to obtain, and the supersonic frequency of the ultrasonic disperse is 30KHz, ultrasonic power For 200W, the revolving speed of the centrifugation is 5000r/min, and time 10min, the temperature of the drying is 80 DEG C, and the time is 4 small When.
The coating weight of the aqueous polyurethane layer is 50g/m2.
Embodiment 3
In the embodiment of the present invention, a kind of preparation method of water-soluble polyurethane leather beth, steps are as follows:
1) preparation of base fabric: ready base fabric is impregnated with by processing solution, base fabric liquid carrying rate is after impregnation 20%, heating pressing, press polish and drying and processing are successively then carried out to base fabric, the processing solution includes below according to parts by weight Raw material: 2 parts of water soluble polymer, 1 part of metal nitrate, 90 parts of water;
2) preparation of waterborne polyurethane synthetic leather foamed slurry: 90 parts of aqueous polyurethane, dispersing agent 0.3 are weighed according to the ratio It is part, 1.5 parts of foam stabilizer, 3 parts of water-based thickener, 3 parts of wetting agent, 1 part of levelling agent, 3 parts of chitosan, 2 parts of Tea Saponin, modified micaceous 9 parts of powder;Then raw material is pre-mixed with high-speed mixer, mixing time 25min, mixing speed 900r/min is complete At rear starting micro-bubble generator, 100-200 μm of micro air bubble is generated, the micro air bubble is then passed through premix and is got togather Slurry, continuously ventilate 35min, and it is 100-200 μm of waterborne polyurethane synthetic leather foamed slurry that bubble diameter, which can be obtained,;
3) coat waterborne polyurethane foaming coating: base fabric carries out blade coating waterborne polyurethane synthetic leather foamed slurry, in base fabric Surface solidification forms aqueous polyurethane layer, extracts;
4) it after extracting, foams into bamboo vinegar, forms porous polyurethane coating, washed after the completion of foaming;
5) dry: at 140 DEG C of temperature after completion step 4), baking oven length is 40 meters, and linear speed dries under conditions of being 15m/min It does to get required water-soluble polyurethane leather beth.
Wherein, the water soluble polymer is polyvinyl alcohol.
The metal nitrate is sodium nitrate.
In step 1), described plate is that the heating of six rollers is plated, and temperature is 150 DEG C, and calendering temperature is 150 DEG C, and pressure is 3MPa;The drying temperature is incremented to 160 DEG C by 120 DEG C.
The dispersing agent is lauryl sodium sulfate;The foam stabilizer is fatty acid amide surfactants;The aqueous increasing Thick dose is water-soluble association type polyurethane thickener;The wetting agent is anionic organosilicon wetting agent;The levelling agent For organosilicon-modified acrylic class levelling agent.
Roasting 4 hours the preparation method is as follows: being 450 DEG C in temperature for mica powder for the modified micaceous powder, takes 10 parts of roastings Ultrasonic disperse 25min in 95 parts of water is added in mica powder, 0.3 part of gamma-aminopropyl-triethoxy-silane after burning;Add 8 parts of boron Sour zinc, 3 parts of ammonium polyphosphate stir 25min, and centrifugation is drying to obtain, and the supersonic frequency of the ultrasonic disperse is 35KHz, ultrasonic function Rate is 300W, and the revolving speed of the centrifugation is 6000r/min, and time 20min, the temperature of the drying is 85 DEG C, and the time is 5 small When.
The coating weight of the aqueous polyurethane layer is 80g/m2.
Embodiment 4
In the embodiment of the present invention, a kind of preparation method of water-soluble polyurethane leather beth, steps are as follows:
1) preparation of base fabric: ready base fabric is impregnated with by processing solution, base fabric liquid carrying rate is after impregnation 25%, heating pressing, press polish and drying and processing are successively then carried out to base fabric, the processing solution includes below according to parts by weight Raw material: 2.5 parts of water soluble polymer, 1.2 parts of metal nitrate, 95 parts of water;
2) preparation of waterborne polyurethane synthetic leather foamed slurry: 95 parts of aqueous polyurethane, dispersing agent 0.35 are weighed according to the ratio Part, 1.8 parts of foam stabilizer, 3.5 parts of water-based thickener, 2.5 parts of wetting agent, 1.2 parts of levelling agent, 4 parts of chitosan, 2.5 parts of Tea Saponin, 10 parts of modified micaceous powder;Then raw material is pre-mixed with high-speed mixer, mixing time 30min, mixing speed is 950r/min starts micro-bubble generator after the completion, 100-200 μm of micro air bubble is generated, then by the micro air bubble It is passed through well pre-mixed slurry, continuously ventilate 40min, and the aqueous polyurethane that bubble diameter is 100-200 μm can be obtained and synthesize Remove from office foamed slurry;
3) coat waterborne polyurethane foaming coating: base fabric carries out blade coating waterborne polyurethane synthetic leather foamed slurry, in base fabric Surface solidification forms aqueous polyurethane layer, extracts;
4) it after extracting, foams into bamboo vinegar, forms porous polyurethane coating, washed after the completion of foaming;
5) dry: at 145 DEG C of temperature after completion step 4), baking oven length is 45 meters, and linear speed dries under conditions of being 18m/min It does to get required water-soluble polyurethane leather beth.
Wherein, the water soluble polymer is gelatin.
The metal nitrate is sodium nitrate.
In step 1), described plate is that the heating of six rollers is plated, and temperature is 155 DEG C, and calendering temperature is 155 DEG C, and pressure is 4MPa;The drying temperature is incremented to 160 DEG C by 120 DEG C.
The dispersing agent is lauryl sodium sulfate;The foam stabilizer is oxidation ammonium surfactant;The aqueous thickening Agent is water-soluble cellulose thickener;The wetting agent is anionic organosilicon wetting agent;The levelling agent is organic Fluorine-silicon modified acrylic class levelling agent.
Roasting 6 hours the preparation method is as follows: being 500 DEG C in temperature for mica powder for the modified micaceous powder, takes 12 parts of roastings Ultrasonic disperse 30min in 100 parts of water is added in mica powder, 0.5 part of gamma-aminopropyl-triethoxy-silane after burning;Add 10 parts Zinc borate, 5 parts of ammonium polyphosphate stir 30min, and centrifugation is drying to obtain, and the supersonic frequency of the ultrasonic disperse is 40KHz, ultrasound Power is 400W, and the revolving speed of the centrifugation is 7000r/min, and time 30min, the temperature of the drying is 90 DEG C, the time 6 Hour.
The coating weight of the aqueous polyurethane layer is 80g/m2.
Embodiment 5
In the embodiment of the present invention, a kind of preparation method of water-soluble polyurethane leather beth, steps are as follows:
1) preparation of base fabric: ready base fabric is impregnated with by processing solution, base fabric liquid carrying rate is after impregnation 30%, heating pressing, press polish and drying and processing are successively then carried out to base fabric, the processing solution includes below according to parts by weight Raw material: 3 parts of water soluble polymer, 1.5 parts of metal nitrate, 100 parts of water;
2) preparation of waterborne polyurethane synthetic leather foamed slurry: 100 parts of aqueous polyurethane, dispersing agent 0.4 are weighed according to the ratio Part, 2 parts of foam stabilizer, 4 parts of water-based thickener, 3 parts of wetting agent, 1.5 parts of levelling agent, 5 parts of chitosan, 3 parts of Tea Saponin, modified cloud 12 parts of female powder;Then raw material is pre-mixed with high-speed mixer, mixing time 30min, mixing speed 1000r/ Min starts micro-bubble generator after the completion, generates 100-200 μm of micro air bubble, is then passed through the micro air bubble pre- The slurry mixed, continuously ventilate 40min, and the waterborne polyurethane synthetic leather that bubble diameter is 100-200 μm can be obtained and foam Slurry;
3) coat waterborne polyurethane foaming coating: base fabric carries out blade coating waterborne polyurethane synthetic leather foamed slurry, in base fabric Surface solidification forms aqueous polyurethane layer, extracts;
4) it after extracting, foams into bamboo vinegar, forms porous polyurethane coating, washed after the completion of foaming;
5) dry: at 150 DEG C of temperature after completion step 4), baking oven length is 50 meters, and linear speed dries under conditions of being 20m/min It does to get required water-soluble polyurethane leather beth.
Wherein, the water soluble polymer is modified starch.
The metal nitrate is magnesium nitrate.
In step 1), described plate is that the heating of six rollers is plated, and temperature is 160 DEG C, and calendering temperature is 160 DEG C, and pressure is 4MPa;The drying temperature is incremented to 160 DEG C by 120 DEG C.
The dispersing agent is polyacrylamide surfactant;The foam stabilizer is cationic surfactant;It is described Water-based thickener is water-soluble cellulose thickener;The wetting agent is anionic organosilicon wetting agent;The levelling Agent is organosilicon-modified acrylic class levelling agent.
Roasting 6 hours the preparation method is as follows: being 500 DEG C in temperature for mica powder for the modified micaceous powder, takes 12 parts of roastings Ultrasonic disperse 30min in 100 parts of water is added in mica powder, 0.5 part of gamma-aminopropyl-triethoxy-silane after burning;Add 10 parts Zinc borate, 5 parts of ammonium polyphosphate stir 30min, and centrifugation is drying to obtain, and the supersonic frequency of the ultrasonic disperse is 40KHz, ultrasound Power is 400W, and the revolving speed of the centrifugation is 7000r/min, and time 30min, the temperature of the drying is 90 DEG C, the time 6 Hour.
The coating weight of the aqueous polyurethane layer is 100g/m2.
Comparative example 1
Compared with Example 3, Tea Saponin is free of, other are same as Example 3;
Comparative example 2
Compared with Example 3, not chitosan-containing, other are same as Example 3;
Comparative example 3
Compared with Example 3, Tea Saponin and chitosan are free of, other are same as Example 3.
Performance verification
Group Tensile strength/N Tear strength/N Wearability
Comparative example 1 950 45 Coating falls off at 13500 turns
Comparative example 2 960 48 Coating falls off at 13500 turns
Comparative example 3 600 30 Coating falls off at 10000 turns
Embodiment 1 1000 55 Coating falls off at 14500 turns
Embodiment 2 1050 55 Coating falls off at 14400 turns
Embodiment 3 1100 58 Coating falls off at 14500 turns
As can be seen from the above results, prepared by the preparation method of water-soluble polyurethane leather beth through the invention The performance and wearability of stretch-proof, the tearing of water-soluble polyurethane leather beth are all enhanced, especially to passing through Tea Saponin and chitosan are added in the slurry has synergistic function, the preparation of water-soluble polyurethane leather beth of the invention Method, rapidly, the bubble diameter of the waterborne polyurethane synthetic leather foamed slurry of preparation can reach 100-200 μm for foamed material foaming, Bubble is fine and closely woven uniform and in the same size, and stability is good, and foaming layer foam structure made of it is stable, fine and close, regular, and prepares It is simple for process, it is easy to continuous production, is very suitable to industrialized production;Foamed using bamboo vinegar, it is manufactured at Product tensile strength, Tear strength and wearability all get a promotion, and have the characteristics of soft handle, quality is fine and smooth, good permeability, pass through Tea Saponin, chitosan is added, enables to the viscosity enhancing of slurry, it is even closer in conjunction with base fabric, while there is good cream The functions such as change, dispersion, foaming, wet, the synthetic leather bass of preparation not only have the basic structure of common synthetic leather bass, and And there is good moisture-penetrable ventilated performance, it can be used for manufacturing various synthetic leather products, have a vast market foreground.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (7)

1. a kind of preparation method of water-soluble polyurethane leather beth, which is characterized in that steps are as follows:
1) preparation of base fabric: ready base fabric is impregnated with by processing solution, and base fabric liquid carrying rate is 10- after impregnation 30%, heating pressing, press polish and drying and processing are successively then carried out to base fabric, the processing solution includes below according to parts by weight Raw material: 1-3 parts of water soluble polymer, 0.5-1.5 parts of metal nitrate, 80-100 parts of water;
2) preparation of waterborne polyurethane synthetic leather foamed slurry: 80-100 parts of aqueous polyurethane, dispersing agent 0.2- are weighed according to the ratio 0.4 part, 1-2 parts of foam stabilizer, 2-4 parts of water-based thickener, 1-3 parts of wetting agent, 0.5-1.5 parts of levelling agent, 1-5 parts of chitosan, tea It is 1.5-3 parts of saponin, powder 6-12 parts modified micaceous;Then raw material is pre-mixed with high-speed mixer, mixing time 20- 30min, mixing speed 800-1000r/min start micro-bubble generator after the completion, generate 100-200 μm of fine gas Bubble, is then passed through well pre-mixed slurry for the micro air bubble, continuously ventilate 30-40min, and bubble diameter can be obtained and be 100-200 μm of waterborne polyurethane synthetic leather foamed slurry;
3) coat waterborne polyurethane foaming coating: base fabric carries out blade coating waterborne polyurethane synthetic leather foamed slurry, in scrim surfaces Solidification forms aqueous polyurethane layer, extracts;
4) it after extracting, foams into bamboo vinegar, forms porous polyurethane coating, washed after the completion of foaming;
5) dry: at 130-150 DEG C of temperature after completion step 4), baking oven length is 30-50 meters, and linear speed is the item of 10-20m/min Drying is under part to get required water-soluble polyurethane leather beth.
2. the preparation method of water-soluble polyurethane leather beth according to claim 1, which is characterized in that the water solubility Macromolecule is one of polyvinyl alcohol, cellulose derivative, gelatin, modified starch.
3. the preparation method of water-soluble polyurethane leather beth according to claim 2, which is characterized in that the metal nitre Hydrochlorate is one of sodium nitrate, calcium nitrate, magnesium nitrate.
4. the preparation method of water-soluble polyurethane leather beth according to claim 1, which is characterized in that in step 1), Described plate is that the heating of six rollers is plated, and temperature is 140-160 DEG C, and calendering temperature is 140-160 DEG C, pressure 2-4MPa;It is described Drying temperature is incremented to 160 DEG C by 120 DEG C.
5. the preparation method of water-soluble polyurethane leather beth according to claim 1, which is characterized in that the dispersing agent For one of lauryl sodium sulfate, polyacrylamide surfactant;The foam stabilizer is fatty acid amide surface-active One of agent, oxidation ammonium surfactant, cationic surfactant;The water-based thickener is poly- for water-soluble association type Urethane thickener or water-soluble cellulose thickener;The wetting agent is anionic organosilicon wetting agent;The levelling Agent is organosilicon-modified acrylic class levelling agent.
6. the preparation method of water-soluble polyurethane leather beth a method as claimed in any one of claims 1 to 5, which is characterized in that described to change Property mica powder the preparation method is as follows: by mica powder temperature be 400-500 DEG C roasting 2-6 hours, take 8-12 parts roast after Ultrasonic disperse 20-30min in 90-100 parts of water is added in mica powder, 0.1-0.5 parts of gamma-aminopropyl-triethoxy-silanes;It adds 5-10 parts of zinc borates, 2-5 parts of ammonium polyphosphate stir 20-30min, and centrifugation is drying to obtain, the supersonic frequency of the ultrasonic disperse is 30-40KHz, ultrasonic power 200-400W, the revolving speed of the centrifugation are 5000-7000r/min, time 10-30min, institute Stating dry temperature is 80-90 DEG C, and the time is 4-6 hours.
7. the preparation method of water-soluble polyurethane leather beth according to claim 1, which is characterized in that described aqueous poly- The coating weight of urethane layer is 30-100g/m2.
CN201811498509.8A 2018-12-08 2018-12-08 A kind of preparation method of water-soluble polyurethane leather beth Pending CN109629249A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811498509.8A CN109629249A (en) 2018-12-08 2018-12-08 A kind of preparation method of water-soluble polyurethane leather beth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811498509.8A CN109629249A (en) 2018-12-08 2018-12-08 A kind of preparation method of water-soluble polyurethane leather beth

Publications (1)

Publication Number Publication Date
CN109629249A true CN109629249A (en) 2019-04-16

Family

ID=66072161

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811498509.8A Pending CN109629249A (en) 2018-12-08 2018-12-08 A kind of preparation method of water-soluble polyurethane leather beth

Country Status (1)

Country Link
CN (1) CN109629249A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110184825A (en) * 2019-05-30 2019-08-30 陕西科技大学 A kind of micro-nano frothed aqueous polyurethane superfine fiber chemical leather of environment-friendly type and its manufacturing method
CN110195357A (en) * 2019-05-30 2019-09-03 陕西科技大学 A kind of micro-nano frothed aqueous polyurethane synthetic leather of environment-friendly type and its manufacturing method
CN110777544A (en) * 2019-11-01 2020-02-11 清远市齐力合成革有限公司 Waterborne polyurethane synthetic leather fabric and preparation method thereof
CN111074640A (en) * 2019-12-27 2020-04-28 浙江禾欣新材料有限公司 Polyurethane synthetic leather using recycled renewable resources and preparation method thereof
CN111749026A (en) * 2020-07-08 2020-10-09 清远市齐力合成革有限公司 Preparation method of water-based ecological leather
CN111764182A (en) * 2020-07-08 2020-10-13 清远市齐力合成革有限公司 Waterproof frosting waterborne polyurethane synthetic leather

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1143870A (en) * 1997-07-18 1999-02-16 Kanebo Ltd Artificial leather
CN102787510A (en) * 2012-08-20 2012-11-21 温州市长丰人造革有限公司 Preparation method of waterborne polyurethane synthetic leather Bayse and applications thereof
CN106087455A (en) * 2016-06-22 2016-11-09 程志刚 PU synthetic leather that a kind of comfort level is high and production method thereof
CN106480743A (en) * 2016-10-11 2017-03-08 漳州市鼎鑫电子科技有限公司 A kind of non-weaving cloth, method for sorting and its application
CN107254248A (en) * 2017-07-20 2017-10-17 江南大学 Multi-functional high-strength compound textile coating agent, coating and preparation method and application
CN107489037A (en) * 2017-09-11 2017-12-19 遂昌玄乐炭复合材料有限公司 A kind of production method of environment-friendly water-based polyurethane synthetic leather bass
CN108148273A (en) * 2017-12-20 2018-06-12 阮小军 Household electrical appliances special-purpose anti-flaming plastics and its production technology

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1143870A (en) * 1997-07-18 1999-02-16 Kanebo Ltd Artificial leather
CN102787510A (en) * 2012-08-20 2012-11-21 温州市长丰人造革有限公司 Preparation method of waterborne polyurethane synthetic leather Bayse and applications thereof
CN106087455A (en) * 2016-06-22 2016-11-09 程志刚 PU synthetic leather that a kind of comfort level is high and production method thereof
CN106480743A (en) * 2016-10-11 2017-03-08 漳州市鼎鑫电子科技有限公司 A kind of non-weaving cloth, method for sorting and its application
CN107254248A (en) * 2017-07-20 2017-10-17 江南大学 Multi-functional high-strength compound textile coating agent, coating and preparation method and application
CN107489037A (en) * 2017-09-11 2017-12-19 遂昌玄乐炭复合材料有限公司 A kind of production method of environment-friendly water-based polyurethane synthetic leather bass
CN108148273A (en) * 2017-12-20 2018-06-12 阮小军 Household electrical appliances special-purpose anti-flaming plastics and its production technology

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
宋丽雅 等: "《化妆品植物功效添加剂的研究与开发》", 30 September 2011 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110184825A (en) * 2019-05-30 2019-08-30 陕西科技大学 A kind of micro-nano frothed aqueous polyurethane superfine fiber chemical leather of environment-friendly type and its manufacturing method
CN110195357A (en) * 2019-05-30 2019-09-03 陕西科技大学 A kind of micro-nano frothed aqueous polyurethane synthetic leather of environment-friendly type and its manufacturing method
CN110195357B (en) * 2019-05-30 2021-10-19 陕西科技大学 Environment-friendly micro-nano foaming waterborne polyurethane synthetic leather and manufacturing method thereof
CN110777544A (en) * 2019-11-01 2020-02-11 清远市齐力合成革有限公司 Waterborne polyurethane synthetic leather fabric and preparation method thereof
CN111074640A (en) * 2019-12-27 2020-04-28 浙江禾欣新材料有限公司 Polyurethane synthetic leather using recycled renewable resources and preparation method thereof
CN111749026A (en) * 2020-07-08 2020-10-09 清远市齐力合成革有限公司 Preparation method of water-based ecological leather
CN111764182A (en) * 2020-07-08 2020-10-13 清远市齐力合成革有限公司 Waterproof frosting waterborne polyurethane synthetic leather

Similar Documents

Publication Publication Date Title
CN109629249A (en) A kind of preparation method of water-soluble polyurethane leather beth
CN102418284B (en) Preparation method of water-soluble polyurethane leather beth
CN102115983B (en) Aqueous polyurethane superfine fiber synthetic leather and preparation method thereof
CN106118034A (en) A kind of dry method clothing leather bass and preparation technology thereof
CN105199558B (en) Special coil coating of anodic oxidation special-effect of a kind of aluminium sheet coiled material and preparation method thereof
CN105804352A (en) Environment-friendly wall cloth with self-contained adhesives and preparation method thereof
CN103966854A (en) Metallic fog-brightening water based treatment agent and preparation method thereof
CN103774455A (en) Water-based polyurethane superfine fiber synthetic leather and preparation method thereof
CN102101101A (en) Highlight cracked superfine fiber leather and preparation method thereof
CN106521986A (en) Aqueous double-faced suede microfiber PU synthetic leather and production method thereof
CN102731990B (en) Enhanced polyurethane wood-imitation material and manufacturing method thereof
CN108330704A (en) A kind of graphene superfine fiber polyurethane leather and preparation method thereof
CN110777544A (en) Waterborne polyurethane synthetic leather fabric and preparation method thereof
CN107118678A (en) A kind of method for the paint adhesion for improving wicker wicker plaiting article
CN110670374A (en) Preparation process of ecological synthetic leather for water-based super-soft clothes
CN108690362A (en) A kind of edibility pericarp wrapping paper and preparation method thereof
CN103805044A (en) Method for preparing waterborne polyurethane foaming slurry for synthetic leather in ultrasonic-assisted manner
CN105131194A (en) Manmade beef bone button and preparing method thereof
CN105839425A (en) Formula and technology of waterborne polyurethane foaming velvet and silk sense synthetic leather
CN106700303A (en) Baking type foaming water-based damping glue for automobiles and preparation method thereof
CN206570624U (en) A kind of crystal pure paper wallpaper
CN103790021A (en) Production method for micro porous membrane fabric
CN107916578B (en) Method for manufacturing cashmere-feeling double-sided polyurethane synthetic leather
CN105342878A (en) Waterborne 3D magnetic nail polish and preparation method thereof
CN108951301A (en) A kind of preparation method of the wallpaper with deadening

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20190416

RJ01 Rejection of invention patent application after publication