CN102965966A - Air-permeable apped polyurethane synthetic leather and preparation method thereof - Google Patents
Air-permeable apped polyurethane synthetic leather and preparation method thereof Download PDFInfo
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- CN102965966A CN102965966A CN2012104908308A CN201210490830A CN102965966A CN 102965966 A CN102965966 A CN 102965966A CN 2012104908308 A CN2012104908308 A CN 2012104908308A CN 201210490830 A CN201210490830 A CN 201210490830A CN 102965966 A CN102965966 A CN 102965966A
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Abstract
The invention discloses an air-permeable apped polyurethane synthetic leather and a preparation method thereof. The preparation method comprises the following steps of: coating a layer of polyurethane slurry on the napped surface of a fabric base which is single-side napped dull velvet, forming a polyurethane leather film on the surface of the base fabric after the polyurethane slurry is solidified, and sequentially washing, replacing a solvent, drying and shaping to obtain a semi-finished product; carrying out directional buffing processing on the surface of the semi-finished product, and then carrying out surface postprocessing and color alteration to obtain a finished product. The air-permeable pashm-effect polyurethane synthetic leather prepared by the method disclosed by the invention has the advantages of excellent air-permeable water-proof function, appearance similar to a reversed velvet leather, higher surface velvet sense, light weight, wearing comfort and low cost, can substitute a part of reversed velvet leather products and accords with the conception of light weight emphasized by the modern industry.
Description
One, technical field
The present invention relates to a kind of functional urethane synthetic leather and preparation method thereof, specifically a kind of have ventilative matte effect Synthetic Leather and preparation method thereof.
Two, background technology
Synthetic Leather is called for short the PU synthetic leather, is a kind of take various base cloths as base material, applies polyurethane resin at base material and makes it have the real leather intimating synthetic leather of various decorative patterns, pattern, function and feel.Along with socioeconomic development, the people's quality of life and level improve day by day, and be also more and more higher to class and the quality requirement of articles for daily use, more pursues the functional of product.Common PU synthetic leather is Heavy Weight not only, and permeability is poor, makes heavy wearing behind the article of footwear, and air can not in time exchange with the external world in the footwear, produces easily the problem of vexed pin, smelly pin, portability and comfortableness that impact is worn.
Three, summary of the invention
The present invention aims to provide a kind of novel ventilative matte Synthetic Leather and preparation method thereof, Synthetic Leather of the present invention is except airing function, also have good waterproof and light-weighted characteristics, and outer appearnce is like suede, the surface velvet is stronger, can partly substitute the suede product, with low cost.Given product powerful functional comfortableness with wearing.
The present invention's matte Synthetic Leather of breathing freely comprises base cloth and is coated in the polyurethane coating on base cloth surface, it is characterized in that:
Described base cloth is the standing grain light suede of single face napping; Described base cloth has that positive fluffing effect is even, fine and closely woven, lodging property is good, permeates rapidly and uniformly advantage;
The raw material of described polyurethane coating is constructed as follows by mass fraction:
The preparation method of the ventilative matte Synthetic Leather of the present invention, comprise polyurethane slurry preparation, apply, solidify, wash, drying, grinding and each unit process of post processing:
The preparation of described polyurethane slurry is to add successively solvent DMF, color divergence agent, bleeding agent, defoamer, lignin and mill base in the wet laid furnishes still, stirred 20-40 minute under the normal temperature and pressure, add again polyester polyethers copolymerization polyurethane resin SW-4168 and polyester polyethers copolymerization polyurethane resin SW-4238, continue under the normal temperature and pressure to stir 30-50 minute, then vacuum≤-stirred 30-60 minute under the condition of 0.75bar, obtain polyurethane slurry;
Described polyurethane slurry is coated on the matte of base cloth, then according to conventional method place successively that coagulating basin solidifies, washing and drying obtain the wet-method synthetic leather semi-finished product, being polished in the half-finished surface of described wet-method synthetic leather with sand paper obtains grinding the leather synthetic leather semi-finished product, makes it have the matte effect and has airing function;
Described post processing is that described mill leather synthetic leather semi-finished product obtain ventilative matte Synthetic Leather successively after change colour slurry processing, surface treatment slurry processing and drying, and the baking temperature in the last handling process is 60-100 ℃.
The raw material of the described slurry that changes colour and proportioning are:
The polyurethane slurry UB-2018 that changes colour, the 30-60 parts by mass;
DMF, the 1-20 parts by mass;
Printing ink, addition are the 1-20% of stock quality of changing colour.
The raw material of described surface treatment slurry and proportioning are:
The slurry XU-2874 of polyurethane surface place, the 20-50 parts by mass;
Methyl acetone (MEK), the 1-20 parts by mass;
Cyclohexanone (CHN), the 0-15 parts by mass;
Water-sprinkling agent SF-33, addition are the 0.1-0.5% of surface treatment slurry quality.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, adopted the comparatively desirable standing grain light suede of matte effect as base cloth among the present invention, by normal dipping process, apply the polyurethane resin epithelium of thin layer at the base cloth matte, after employing sand paper is with the polishing of polyurethane epithelium, the surface namely presents extremely strong fine hair shape, the similar suede of outward appearance and sense of touch is highly advantageous to and improves gas permeability and the lightweight of synthetic leather finished product.
2, employing table place among the present invention, the post-processing approach that the changes colour ventilative cashmere effect Synthetic Leather semi-finished product after to the mill skin are processed, and have given finished product good water resistance, improve the durability of product.Can also obtain multiple coloured prod by the method, and COLOR FASTNESS is better, can reaches more than 4 grades.
3, this product is except the specific function with waterproof and breathable, and its outer appearnce is like suede, and surperficial velvet is stronger, can partly substitute the suede product, and is with low cost.The concept that meets " lightweight " that modern footwear already advocate, large tracts of land use this product can alleviate largely the weight of shoes, make the shoes dress lighter, comfortable.
Four, the specific embodiment
The ventilative matte Synthetic Leather of the present invention is mainly through three preparation process, at first, to have selected a kind ofly have the standing grain light suede of single face napping as base cloth, apply one deck polyurethane slurry in its raised surfaces, form the polyurethane epithelium through condensing upon the base cloth surface, obtain semi-finished product through washing replacement solvent, oven dry, typing successively; Then adopt suitable order to count sand paper surface of semi-finished is carried out the processing of orientation mill skin, make finished product finally by processing later, detailed process is as follows:
1, the preparation of polyurethane slurry
Prepare with wet type synthetic leather production equipment, in the wet laid furnishes still, add successively solvent DMF 100-300 part, color divergence agent BYK-104 0.1-0.8 part, bleeding agent BYK-6798 0-0.8 part, defoamer OH/60 0-0.5 part, lignin BE-3000-20 part and mill base 0-10 part, stirred 20-40 minute under the normal temperature and pressure, add again polyester polyethers copolymerization polyurethane resin SW-4168 20-100 part and polyester polyethers copolymerization polyurethane resin SW-4238 30-100 part, continue under the normal temperature and pressure to stir 30-50 minute, then vacuum≤-stirred 30-60 minute under the condition of 0.75bar, obtain polyurethane slurry.
Wherein, color divergence agent BYK-104 and bleeding agent BYK-6798 are German Bick BYK chemical company product; It is the product of BE-300 that lignin adopts the German JRS company trade mark, and fineness is 300 orders; Polyester polyethers copolymerization polyurethane resin SW-4168 and polyester polyethers copolymerization polyurethane resin SW-4238 are Hefei Amway polyurethane new material Co., Ltd product.
2, the half-finished preparation of mill leather synthetic leather
Described polyurethane slurry is coated on the matte of base cloth, then place successively coagulating basin to solidify that (DMF concentration is 25-28% according to conventional method, 32 ± 5 ℃ of temperature), washing (water temperature 20-50 ℃) and dry (100 ± 10 ℃ of pre-baking box temperature, 150 ± 10 ℃ of main oven temperatures, 110 ± 10 ℃ of end oven temperatures) obtain the wet-method synthetic leather semi-finished product, adopt the post processing decorticating mill that the wet-method synthetic leather semi-finished product are carried out sanding processing, note the leather surface piebald during mill skin, the situations such as dark flower and vitta, crust leather grinding degree is determined according to crust leather thickness and leather surface situation, select simultaneously along the base cloth hair to grinding, stock removal normally is controlled at the 8-10 silk, the mill leather synthetic leather semi-finished product sense of touch that this method obtains is fine and smooth, velvet is very strong, and the suede effect is arranged.According to the requirement of waterproof and breathable cashmere effect synthetic leather, the basic demand of mill skin technique is:
3, post processing
Mill leather synthetic leather semi-finished product are at first by the processing (13 m/mins of the speed of a motor vehicle, several 120 orders of paint roller order) of changing colour of the first coating head, and the viscosity of the employed slurry that changes colour is controlled at 200-400cps/20 ± 5 ℃; And then carry out surface treatment (13 m/mins of the speed of a motor vehicle, several 80 orders of paint roller order) by the second coating head, the viscosity of employed surface treatment slurry is controlled at 200-400cps/20 ± 5 ℃, obtains ventilative matte Synthetic Leather after the 60-100 ℃ of drying.
Raw material and the proportioning of slurry of changing colour is:
The polyurethane slurry UB-2018 that changes colour, the 30-60 parts by mass;
DMF, the 1-20 parts by mass;
Printing ink, addition are the 1-20% of stock quality of changing colour.
The raw material of surface treatment slurry and proportioning are:
The slurry XU-2874 of polyurethane surface place, the 20-50 parts by mass;
Methyl acetone, the 1-20 parts by mass;
Cyclohexanone, the 0-15 parts by mass;
Water-sprinkling agent SF-33, addition are the 0.1-0.5% of surface treatment slurry quality.
Water-sprinkling agent SF-33 is Korea S's three fragrant chemical company products; Methyl acetone, cyclohexanone and DMF adopt the product of Chinese Yantai Wan Hua company; The slurry XU-2874 of polyurethane surface place is the product of the new photosynthetic finished leather of Yixing City Co., Ltd; The polyurethane slurry UB-2018 that changes colour is Guangzhou rich san resin Co., Ltd product.
After testing, the ventilative matte Synthetic Leather of the present invention has excellent air permeable waterproof function, and outer appearnce is like suede, and surface touch is fine and smooth, and velvet is stronger, has simultaneously stronger physical property, test data following (method of testing is with reference to GB/T8949-2008):
Claims (5)
1. a ventilative matte Synthetic Leather comprises base cloth and the polyurethane coating that is coated in the base cloth surface, and it is characterized in that: described base cloth is the standing grain light suede of single face napping;
The raw material of described polyurethane coating is constructed as follows by mass fraction:
2. the preparation method of a ventilative matte Synthetic Leather claimed in claim 1, comprise polyurethane slurry preparation, apply, solidify, wash, dry, grinding and each unit process of post processing, it is characterized in that:
The preparation of described polyurethane slurry is to add successively solvent DMF, color divergence agent, bleeding agent, defoamer, lignin and mill base in the wet laid furnishes still, stirred 20-40 minute under the normal temperature and pressure, add again polyester polyethers copolymerization polyurethane resin SW-4168 and polyester polyethers copolymerization polyurethane resin SW-4238, continue under the normal temperature and pressure to stir 30-50 minute, then vacuum≤-stirred 30-60 minute under the condition of 0.75bar, obtain polyurethane slurry;
Described polyurethane slurry is coated on the matte of base cloth, then according to conventional method place successively that coagulating basin solidifies, washing and drying obtain the wet-method synthetic leather semi-finished product, with sand paper being polished in the half-finished surface of described wet-method synthetic leather obtains grinding the leather synthetic leather semi-finished product;
Described post processing is that described mill leather synthetic leather semi-finished product obtain ventilative matte Synthetic Leather successively after change colour slurry processing, surface treatment slurry processing and drying.
3. preparation method according to claim 2 is characterized in that:
Baking temperature in the last handling process is 60-100 ℃.
4. preparation method according to claim 2 is characterized in that the raw material of the described slurry that changes colour and proportioning are:
The polyurethane slurry UB-2018 that changes colour, the 30-60 parts by mass;
DMF, the 1-20 parts by mass;
Printing ink, addition are the 1-20% of stock quality of changing colour.
5. preparation method according to claim 2 is characterized in that the raw material of described surface treatment slurry and proportioning are:
The slurry XU-2874 of polyurethane surface place, the 20-50 parts by mass;
Methyl acetone, the 1-20 parts by mass;
Cyclohexanone, the 0-15 parts by mass;
Water-sprinkling agent SF-33, addition are the 0.1-0.5% of surface treatment slurry quality.
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| CN102965966B CN102965966B (en) | 2015-02-25 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469608A (en) * | 2013-09-13 | 2013-12-25 | 安徽安利合成革股份有限公司 | Thin type micro villus polyurethane certificate leather and preparation method thereof |
| CN103526562A (en) * | 2013-10-22 | 2014-01-22 | 安徽安利合成革股份有限公司 | Non-woven fabric polyurethane sports leisure shoe leather and preparation method thereof |
| CN105484056A (en) * | 2016-02-01 | 2016-04-13 | 鹤山市新科达企业有限公司 | Cloth for PU synthetic leather and preparation method thereof |
| CN105671989A (en) * | 2015-12-21 | 2016-06-15 | 上海汇得科技股份有限公司 | Soft sheepskin-imitating polyurethane resin, preparation method thereof, and method of producing sheepskin-imitating artificial leather therewith |
| CN106283704A (en) * | 2016-08-19 | 2017-01-04 | 安徽安利材料科技股份有限公司 | The preparation method of colourless migration playshoes suede Synthetic Leather |
| CN107059421A (en) * | 2017-04-19 | 2017-08-18 | 上海自见新材料科技有限公司 | A kind of processing method of environment-protecting polyurethane suede |
| CN107815880A (en) * | 2017-10-25 | 2018-03-20 | 安徽安利材料科技股份有限公司 | A kind of preparation method of outdoor functional urethane synthetic leather |
| CN107938382A (en) * | 2017-10-26 | 2018-04-20 | 安徽安利材料科技股份有限公司 | Imitative pseudo-classic super soft type Synthetic Leather of washing of one kind and preparation method thereof |
| CN107964807A (en) * | 2017-12-29 | 2018-04-27 | 江苏万马塑胶有限公司 | A kind of PU breathable leathers and preparation method |
| CN113756109A (en) * | 2021-08-23 | 2021-12-07 | 昆山协孚新材料股份有限公司 | Method for manufacturing water-based suede electronic packaging material |
| CN113832742A (en) * | 2021-10-14 | 2021-12-24 | 清远市齐力合成革有限公司 | Fabric for suede clothing leather and manufacturing method thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469608A (en) * | 2013-09-13 | 2013-12-25 | 安徽安利合成革股份有限公司 | Thin type micro villus polyurethane certificate leather and preparation method thereof |
| CN103526562A (en) * | 2013-10-22 | 2014-01-22 | 安徽安利合成革股份有限公司 | Non-woven fabric polyurethane sports leisure shoe leather and preparation method thereof |
| CN103526562B (en) * | 2013-10-22 | 2015-11-25 | 安徽安利材料科技股份有限公司 | A kind of nonwoven polyurethane sports play shoes leather and preparation method thereof |
| CN105671989A (en) * | 2015-12-21 | 2016-06-15 | 上海汇得科技股份有限公司 | Soft sheepskin-imitating polyurethane resin, preparation method thereof, and method of producing sheepskin-imitating artificial leather therewith |
| CN105484056A (en) * | 2016-02-01 | 2016-04-13 | 鹤山市新科达企业有限公司 | Cloth for PU synthetic leather and preparation method thereof |
| CN106283704A (en) * | 2016-08-19 | 2017-01-04 | 安徽安利材料科技股份有限公司 | The preparation method of colourless migration playshoes suede Synthetic Leather |
| CN107059421A (en) * | 2017-04-19 | 2017-08-18 | 上海自见新材料科技有限公司 | A kind of processing method of environment-protecting polyurethane suede |
| CN107815880A (en) * | 2017-10-25 | 2018-03-20 | 安徽安利材料科技股份有限公司 | A kind of preparation method of outdoor functional urethane synthetic leather |
| CN107938382A (en) * | 2017-10-26 | 2018-04-20 | 安徽安利材料科技股份有限公司 | Imitative pseudo-classic super soft type Synthetic Leather of washing of one kind and preparation method thereof |
| CN107964807A (en) * | 2017-12-29 | 2018-04-27 | 江苏万马塑胶有限公司 | A kind of PU breathable leathers and preparation method |
| CN113756109A (en) * | 2021-08-23 | 2021-12-07 | 昆山协孚新材料股份有限公司 | Method for manufacturing water-based suede electronic packaging material |
| CN113832742A (en) * | 2021-10-14 | 2021-12-24 | 清远市齐力合成革有限公司 | Fabric for suede clothing leather and manufacturing method thereof |
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Owner name: ANHUI ANLI MATERIAL TECHNOLOGY CO., LTD. Free format text: FORMER NAME: ANHUI ANLI ARTIFICIAL LEATHER CO., LTD. |
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Address after: 230601 Anhui economic and Technological Development Zone peach blossom Industrial Park Development Zone (Avenue and Avenue intersection) Patentee after: Anhui Amway material Science and Technology Co., Ltd. Address before: 230601 peach blossom Industrial Park, Hefei economic and Technological Development Zone, Anhui Patentee before: Anhui Anli Artificial Leather Co., Ltd. |