CN103510396A - Method for preparing high solid content high-brightness leather - Google Patents
Method for preparing high solid content high-brightness leather Download PDFInfo
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- CN103510396A CN103510396A CN201210215854.2A CN201210215854A CN103510396A CN 103510396 A CN103510396 A CN 103510396A CN 201210215854 A CN201210215854 A CN 201210215854A CN 103510396 A CN103510396 A CN 103510396A
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Abstract
The invention discloses a method for preparing a high solid content high-brightness leather. The method comprises the following steps of uniformly stirring and filtering 5-10 parts by weight of dimethyl formamide and 0.5-2 parts by weight of colour paste; uniformly mixing and swelling 100-120 parts by weight of the dimethyl formamide and 20-30 parts by weight of wood flour, then adding the colour paste, and uniformly stirring; then adding 100 parts by weight of polyurethane wet resin, uniformly stirring, and defoaming; coating the colour paste on a fabric fiber, and solidifying, squeezing, washing and drying to obtain a wet base; uniformly mixing 100 parts of resin with solid content of 60%-80% and 10-30 parts by weight of butanone, and printing to the wet base to obtain a semi-finished product; uniformly mixing 100 parts by weight of polyurethane dry resin, 15-20 parts by weight of dimethyl formamide, 15-20 parts by weight of butanone, 15-20 parts by weight of methylbenzene, 0.5-1.0 part by weight of auxiliary agents and 3-5 parts by weight of colour powder, coating on a release paper, and adhering the semi-finished product; drying, then separating from the release paper, washing, and drying. The synthetic leather obtained through the method disclosed by the invention has the advantages of satiate pattern, high stereoscopic impression and high lightness, and is difficult to damage.
Description
Technical field
The present invention relates to a kind of artificial leather preparation method, particularly a kind of preparation method of high solids content high brightness leather.
Background technology
Traditional artificial leather is that base cloth layer, wet method bass layer and dry method overlay coating form, and its each layer is all plain structure, makes artificial leather integral body shrivelled, stiff, decorative pattern mostly is dry method overlay coating surface and is printed on plane decorative pattern, its decorative pattern does not have third dimension, and integral body feels dim to people, without honorable.
Summary of the invention
In order to overcome above-mentioned defect, the invention provides the preparation method of a kind of high solids content high brightness leather, the preparation method technique of this high solids content high brightness leather is simple, the whole colored type of product is full, and third dimension is strong, surface brightness is high, and its synthetic leather structural strength is higher.
The present invention for the technical scheme that solves its technical problem and adopt is: a kind of preparation method of high solids content high brightness leather, and concrete steps are as follows:
Step 1: wet-mixing batching:
A. by 5～10kg dimethyl formamide and 0.5～2kg mill base, the mixing speed with 2500rpm～2800rpm stirs, and stirs 80～100 minutes, then filters stand-by;
B. by 100～120kg dimethyl formamide and 20～30kg wood powder mix and blend 20～30 minutes, then abundant swelling 30～40 minutes, then adds the mixture having filtered in step a to stir stand-by;
C. 100kg polyurethane wet method resin is joined in the mixture that step b forms, stir 30～40 minutes, deaeration 40～50 minutes;
Step 2: wet method bass is produced:
The slurry that in step 1, deaeration has formed is coated with and is scraped on woven fabric fiber, immerse again mass percentage concentration and be in 18～22% the dimethyl formamide aqueous solution and solidify, then through at least one squezzing operation, then after washing and being dried, obtain a kind of wet method bass;
Step 3: high solid content resin mix:
100kg solid content mixing speed with 500rpm～800rpm after 60～80% resin, 10～30kg butanone mix is stirred, stir 15～30 minutes, slurry viscosity is controlled at 6000～8000cps/25 ℃;
Step 4: high solid stamp:
The slurry of step 3 is printed on the wet method bass of step 2 with printing rollers, the temperature of 100～120 ℃, dries stand-by;
Step 5: dry mixed batching:
Mixing speed with 2500rpm～2800rpm after 100kg polyurethane dry method resin, 15～20kg dimethyl formamide, 15～20kg butanone, 15～20kg toluene, 0.5～1.0kg auxiliary agent and 3～5kg toner are mixed stirs, mixing time 10～15 minutes, obtains semi-finished product;
Step 6: dry method veneer:
The dry method slurry for preparing in step 5 is coated with to scrape in release liners, forms dry method veneer, is to be then adhered on dry method veneer under the condition of 90～110 ℃ in temperature by the semi-finished product in step 4 by adhesive, separated through super-dry heel release liners;
Step 7: washing:
By the product of 20～50 meters of step 6, put into water boarding machine clear water washing 10～30 minutes, take out and dewater and dry, 70～90 ℃ of bake out temperatures, obtain the finished product that high solids content stamp is spent type and high brightness.
As a further improvement on the present invention, dimethyl formamide and mill base high-speed stirred 90 minutes in described step a.
As a further improvement on the present invention, in described step a, use 240 order nylon wires to filter the mixed liquor of dimethyl formamide and mill base;
B. by 100～120kg dimethyl formamide and 20～30kg wood powder mix and blend 30 minutes, then abundant swelling 35 minutes, then adds the mixture having filtered in step a to stir stand-by;
C. 100kg polyurethane wet method resin is joined in the mixture that step b forms, stir 40 minutes, deaeration 45 minutes.
As a further improvement on the present invention, the speed of a motor vehicle of described step 2 is at 18～20 meters/min, and the speed of a motor vehicle of step 4 is at 12～25 meters/min, and the speed of a motor vehicle of step 6 is at 18～20 meters/min.
As a further improvement on the present invention, in described step 6, use high-light release paper.
The invention has the beneficial effects as follows: the present invention by arranging and having the dapple high solids content processing layer of tool between dry method overlay coating and wet method bass layer, the decorative pattern of this layer sees through dry method overlay coating and presents, whole flower type is full, third dimension is strong, surface brightness is high, and its synthetic leather structural strength is higher, not fragile.
The specific embodiment
Embodiment: a kind of preparation method of high solids content high brightness leather, concrete steps are as follows:
Step 1: wet-mixing batching:
A. by 5～10kg dimethyl formamide and 0.5～2kg mill base, the mixing speed with 2500rpm～2800rpm stirs, and stirs 80～100 minutes, then filters stand-by;
B. by 100～120kg dimethyl formamide and 20～30kg wood powder mix and blend 20～30 minutes, then abundant swelling 30～40 minutes, then adds the mixture having filtered in step a to stir stand-by;
C. 100kg polyurethane wet method resin is joined in the mixture that step b forms, stir 30～40 minutes, deaeration 40～50 minutes;
Step 2: wet method bass is produced:
The slurry that in step 1, deaeration has formed is coated with and is scraped on woven fabric fiber, immerse again mass percentage concentration and be in 18～22% the dimethyl formamide aqueous solution and solidify, then through at least one squezzing operation, then after washing and being dried, obtain a kind of wet method bass;
Step 3: high solid content resin mix:
100kg solid content mixing speed with 500rpm～800rpm after 60～80% resin, 10～30kg butanone mix is stirred, stir 15～30 minutes, slurry viscosity is controlled at 6000～8000cps/25 ℃;
Step 4: high solid stamp:
The slurry of step 3 is printed on the wet method bass of step 2 with printing rollers, the temperature of 100～120 ℃, dries stand-by;
Step 5: dry mixed batching:
Mixing speed with 2500rpm～2800rpm after 100kg polyurethane dry method resin, 15～20kg dimethyl formamide, 15～20kg butanone, 15～20kg toluene, 0.5～1.0kg auxiliary agent and 3～5kg toner are mixed stirs, mixing time 10～15 minutes, obtains semi-finished product;
Step 6: dry method veneer:
The dry method slurry for preparing in step 5 is coated with to scrape in release liners, forms dry method veneer, is to be then adhered on dry method veneer under the condition of 90～110 ℃ in temperature by the semi-finished product in step 4 by adhesive, separated through super-dry heel release liners;
Step 7: washing:
By the product of 20～50 meters of step 6, put into water boarding machine clear water washing 10～30 minutes, take out and dewater and dry, 70～90 ℃ of bake out temperatures, obtain the finished product that high solids content stamp is spent type and high brightness.
In described step a, dimethyl formamide and mill base high-speed stirred are 90 minutes.
In described step a, use 240 order nylon wires to filter the mixed liquor of dimethyl formamide and mill base;
B. by 100～120kg dimethyl formamide and 20～30kg wood powder mix and blend 30 minutes, then abundant swelling 35 minutes, then adds the mixture having filtered in step a to stir stand-by;
C. 100kg polyurethane wet method resin is joined in the mixture that step b forms, stir 40 minutes, deaeration 45 minutes.
4. the preparation method of high solids content high brightness leather according to claim 1, is characterized in that: the speed of a motor vehicle of described step 2 is at 18～20 meters/min, and the speed of a motor vehicle of step 4 is at 12～25 meters/min, and the speed of a motor vehicle of step 6 is at 18～20 meters/min.
5. the preparation method of high solids content high brightness leather according to claim 1, is characterized in that: in described step 6, use high-light release paper.
Claims (5)
1. the preparation method that high solids content high brightness is removed from office, is characterized in that: concrete steps are as follows:
Step 1: wet-mixing batching:
A. by 5～10kg dimethyl formamide and 0.5～2kg mill base, the mixing speed with 2500rpm～2800rpm stirs, and stirs 80～100 minutes, then filters stand-by;
B. by 100～120kg dimethyl formamide and 20～30kg wood powder mix and blend 20～30 minutes, then abundant swelling 30～40 minutes, then adds the mixture having filtered in step a to stir stand-by;
C. 100kg polyurethane wet method resin is joined in the mixture that step b forms, stir 30～40 minutes, deaeration 40～50 minutes;
Step 2: wet method bass is produced:
The slurry that in step 1, deaeration has formed is coated with and is scraped on woven fabric fiber, immerse again mass percentage concentration and be in 18～22% the dimethyl formamide aqueous solution and solidify, then through at least one squezzing operation, then after washing and being dried, obtain a kind of wet method bass;
Step 3: high solid content resin mix:
100kg solid content mixing speed with 500rpm～800rpm after 60～80% resin, 10～30kg butanone mix is stirred, stir 15～30 minutes, slurry viscosity is controlled at 6000～8000cps/25 ℃;
Step 4: high solid stamp:
The slurry of step 3 is printed on the wet method bass of step 2 with printing rollers, the temperature of 100～120 ℃, dries stand-by;
Step 5: dry mixed batching:
Mixing speed with 2500rpm～2800rpm after 100kg polyurethane dry method resin, 15～20kg dimethyl formamide, 15～20kg butanone, 15～20kg toluene, 0.5～1.0kg auxiliary agent and 3～5kg toner are mixed stirs, mixing time 10～15 minutes, obtains semi-finished product;
Step 6: dry method veneer:
The dry method slurry for preparing in step 5 is coated with to scrape in release liners, forms dry method veneer, is to be then adhered on dry method veneer under the condition of 90～110 ℃ in temperature by the semi-finished product in step 4 by adhesive, separated through super-dry heel release liners;
Step 7: washing:
By the product of 20～50 meters of step 6, put into water boarding machine clear water washing 10～30 minutes, take out and dewater and dry, 70～90 ℃ of bake out temperatures, obtain the finished product that high solids content stamp is spent type and high brightness.
2. the preparation method of high solids content high brightness leather according to claim 1, is characterized in that: in described step a, dimethyl formamide and mill base high-speed stirred are 90 minutes.
3. the preparation method of high solids content high brightness leather according to claim 1, is characterized in that: in described step a, use 240 order nylon wires to filter the mixed liquor of dimethyl formamide and mill base;
B. by 100～120kg dimethyl formamide and 20～30kg wood powder mix and blend 30 minutes, then abundant swelling 35 minutes, then adds the mixture having filtered in step a to stir stand-by;
C. 100kg polyurethane wet method resin is joined in the mixture that step b forms, stir 40 minutes, deaeration 45 minutes.
4. the preparation method of high solids content high brightness leather according to claim 1, is characterized in that: the speed of a motor vehicle of described step 2 is at 18～20 meters/min, and the speed of a motor vehicle of step 4 is at 12～25 meters/min, and the speed of a motor vehicle of step 6 is at 18～20 meters/min.
5. the preparation method of high solids content high brightness leather according to claim 1, is characterized in that: in described step 6, use high-light release paper.
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| CN201210215854.2A CN103510396B (en) | 2012-06-28 | 2012-06-28 | Method for preparing high solid content high-brightness leather |
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| CN201210215854.2A CN103510396B (en) | 2012-06-28 | 2012-06-28 | Method for preparing high solid content high-brightness leather |
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| CN103510396B CN103510396B (en) | 2015-06-17 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106521985A (en) * | 2016-11-17 | 2017-03-22 | 福建宝利特科技股份有限公司 | High-color-fastness artificial leather and preparation method thereof |
| CN108914615A (en) * | 2018-09-26 | 2018-11-30 | 安徽安利材料科技股份有限公司 | A kind of preparation method of high solid bright mirror surface wrinkle coat of paint |
| CN109267368A (en) * | 2018-10-18 | 2019-01-25 | 清远市齐力合成革有限公司 | A kind of production method of the two-sided leather of Environment-friendlywear-resistant wear-resistant scratch resistance |
Citations (3)
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| CN101525846A (en) * | 2009-03-27 | 2009-09-09 | 福建兰峰制革有限公司 | Method for producing crease-free leathers |
| CN101545212A (en) * | 2009-04-30 | 2009-09-30 | 江苏东泰聚合材料有限公司 | Hydrolysis resistance chemical leather and manufacturing method thereof |
| CN101748613A (en) * | 2009-12-18 | 2010-06-23 | 安徽安利合成革股份有限公司 | Method for producing real leather intimating polyurethane synthetic leather |
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- 2012-06-28 CN CN201210215854.2A patent/CN103510396B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101525846A (en) * | 2009-03-27 | 2009-09-09 | 福建兰峰制革有限公司 | Method for producing crease-free leathers |
| CN101545212A (en) * | 2009-04-30 | 2009-09-30 | 江苏东泰聚合材料有限公司 | Hydrolysis resistance chemical leather and manufacturing method thereof |
| CN101748613A (en) * | 2009-12-18 | 2010-06-23 | 安徽安利合成革股份有限公司 | Method for producing real leather intimating polyurethane synthetic leather |
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| 丁双山等: "《人造革与合成革》", 30 April 1998, article "《人造革与合成革》", pages: 383-384 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106521985A (en) * | 2016-11-17 | 2017-03-22 | 福建宝利特科技股份有限公司 | High-color-fastness artificial leather and preparation method thereof |
| CN106521985B (en) * | 2016-11-17 | 2018-06-05 | 福建宝利特科技股份有限公司 | A kind of high color fastness artificial leather and preparation method thereof |
| CN108914615A (en) * | 2018-09-26 | 2018-11-30 | 安徽安利材料科技股份有限公司 | A kind of preparation method of high solid bright mirror surface wrinkle coat of paint |
| CN109267368A (en) * | 2018-10-18 | 2019-01-25 | 清远市齐力合成革有限公司 | A kind of production method of the two-sided leather of Environment-friendlywear-resistant wear-resistant scratch resistance |
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Effective date of registration: 20160412 Address after: Suzhou City, Jiangsu province 215300 Yushan town Kunshan City Yuhe Road No. 111 Patentee after: Kunshan Fu Xin new material Limited by Share Ltd Address before: Suzhou City, Jiangsu province 215300 Yushan town Kunshan City Yuhe Road No. 111 Patentee before: Kunshan Xie Run leatheret Co., Ltd |