CN1219126C - Bundle-like ultrafine fibre polyurethane sofa leather and its production method - Google Patents

Bundle-like ultrafine fibre polyurethane sofa leather and its production method Download PDF

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Publication number
CN1219126C
CN1219126C CN 03111848 CN03111848A CN1219126C CN 1219126 C CN1219126 C CN 1219126C CN 03111848 CN03111848 CN 03111848 CN 03111848 A CN03111848 A CN 03111848A CN 1219126 C CN1219126 C CN 1219126C
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China
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polyurethane
superfine fibre
leather
base cloth
artificial leather
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CN 03111848
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Chinese (zh)
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CN1521358A (en
Inventor
孙军廷
牛建民
张传才
夏仲宝
杨典军
李革
徐郁文
王荣
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烟台万华超纤股份有限公司
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Priority to CN 03111848 priority Critical patent/CN1219126C/en
Publication of CN1521358A publication Critical patent/CN1521358A/en
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Publication of CN1219126C publication Critical patent/CN1219126C/en

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Abstract

The present invention relates to bunchy ultrafine fiber polyurethane sofa leather and a making method thereof, which belongs to the field of synthetic leather products and production technology thereof. The bunchy ultrafine fiber polyurethane sofa leather is made by using bunchy superfine fibers as a base fabric through a series of post treatment after facing. The present invention is characterized in that the fiber structure of a product is extremely similar to that of collagenous fibers in natural leather. The three-dimensional structure of bunchy superfine fibers (the single fiber size is below 0.01d) is adopted as a framework. Polyurethane which has excellent performance and has an open pore structure is filled in the framework. The leather is made by processing treatment. The sofa leather is an artificial leather material which is extremely similar to natural leather. In all the aspects of the articulation, the naturality, the fullness degree, the flexibility, the peeling strength, the wear resistance and the like of patterns the present invention is better than ordinary polyurethane artificial leather and PVC artificial leather. In all the aspects of the mechanical strength, the chemical resistance, the quality uniformity, the shape retention, the adaptability of automatic cutting and processing and the like, the present invention is better than natural leather.

Description

Bundle-like ultrafine fibre polyurethane sofa leather and its production method
One, technical field
The present invention relates to a kind of Bundle-like ultrafine fibre polyurethane sofa leather and its production method, belong to synthetic leather product and production technology field.Be applicable to daily daily necessitiess such as making high-grade sofa, case and bag, auto use chair.
Two, background technology
The synthetic leather of bundle superfine fibre polyurethane is as a kind of high emulated artificial leather, and its fiber can reach below 0.01 DENIER, and the fiber number of fiber and structure are extremely similar to the collagenous fibres of natural leather.According to the serviceability of bundle superfine fibre, all kinds of fields such as shoemaking, case and bag, system ball, clothes bundle superfine fibre have been applied to.But with leather, but captured by natural leather and PVC artificial leather for a long time as the domestic family property of another big Application Areas of bundle superfine fibre always.
Three, summary of the invention
The bundle superfine fibre series products has light weight, soft, characteristic such as stretch, tear is better than natural leather, intensity is especially considerably beyond the PVC artificial leather, utilization rate on the measuring and calculating natural leather is in the private leather only is about 70%, the utilization rate of bundle superfine fibre artificial leather then can reach more than 90%, so, the success develop the bundle superfine fibre polyurethane sofa artificial leather will bring family property with the leather a revolution.
The object of the present invention is to provide a kind of bundle superfine fibre polyurethane sofa artificial leather with characteristic and advantage of natural leather, aspect the clear and natural of decorative pattern, aspect such as richness, flexibility, peel strength, anti-wear performance all is better than common polyurethane, PVC artificial leather, cut out aspects such as flexibility (adaptability) of operation in mechanical strength, chemical-resistance, quality homogeneity, shape-retaining ability, automation and more be better than natural leather.
The objective of the invention is to realize by following technical scheme:
The bundle superfine fibre polyurethane sofa artificial leather, be to be base cloth with the bundle superfine fibre, behind veneer, carry out the sofa artificial leather that a series of post processings form, collagenous fibres are extremely similar in the fibre structure that its special character is product and the natural leather, the three-dimensional structure that is employing bundle superfine fibre (filament number is below 0.01d) is a skeleton, the polyurethane with open-celled structure of filling capacity excellence is made through processed therein, and product is a kind of artificial leather material that exactly likes natural leather.
The manufacture method of bundle superfine fibre polyurethane sofa artificial leather, its special character is:
(1) will be with nylon (polyamide) and polyethylene weight ratio mixed melting with 35-65%: 35-65%, through reeling off raw silk from cocoons, acupuncture, pressing, dipping polyurethane, solvent extracts out and makes the bundle superfine fibre base cloth;
(2) (1) bundle superfine fibre base cloth is carried out flour milling, employing thickness sand paper polishes the bundle superfine fibre base cloth respectively and fluffs, make the bundle superfine fibre base cloth be fit to veneer, and base cloth back side effect is extremely similar to natural leather, and dye, oiling treatment is carried out the expanding drying then, makes the dyeing base cloth;
(3) 2 poststaining base cloths that oil are rubbed the leather machine with five sections and rub by force, pass through the polyurethane veneer then, make dyeing base cloth surface form uniform color and decorative pattern, make the semi-finished product sofa artificial leather with 2 meters speed of per minute;
(4) (3) semi-finished product sofa artificial leather was carried out water, segmentation drops in the boarding machine then, rubs line 20-40 minute under 40 ℃-60 ℃ condition, and bundle superfine fibre polyurethane sofa artificial leather of the present invention is promptly made in the post processing of filling, finalize the design.
(1) the dipping polyurethane described in, solvent are extracted out to solidifying, the extraction of toluene adverse current, carry out the expanding drying make the bundle superfine fibre base cloth under 100-130 ℃ with 18% concentration hydrolysis resistant polyurethane dipping, the DMF aqueous solution in back that nonwoven fabric is plated;
(2) the bundle superfine fibre base cloth that the dyeing described in, oiling treatment are to use the dyestuff of mainly being made up of ACID DYES, DISPERSE DYES etc. will grind behind the skin dyes, and the bundle superfine fibre base cloth that has dyeed is oiled;
(3) the bundle superfine fibre base cloth surface lining described in is a polyurethane resin; Veneer is that surface layer adopts ABRASION RESISTANCE polyurethane, and adhesive layer adopts two liquid type polyurethane, wet combining;
(4) water of crossing described in is with bundle superfine fibre polyurethane sofa artificial leather semi-finished product immersion extruding, makes moisture at 10-20%.
Adopt above technical scheme of the present invention, its superiority is:
1. adopt bundle superfine fibre to make base material, can improve the flexibility of product, and make product have common polyurethane, PVC artificial leather incomparable mechanical strength;
2. improve the sense of outward appearance skin and the feel of product by flour milling and dyeing processing;
3. by oiling treatment, the superfine fibre of each fibre bundle inside in the base cloth was separated from each other, base cloth is soft, has also increased interfibrous stretching and slide simultaneously, and the TENSILE STRENGTH of tearing of base cloth is improved;
4. reach the simulated effect of product and make the product sense of touch similar by polyurethane veneer processing method and post processing means to natural leather;
5. rub post processings such as line and printing by crossing water, make the stiff outward appearance lines of product eliminates, make every effort to reach natural leather feel lines clearly, and further improve the flexibility of product;
6. manufacture method is reliable, constant product quality.
Four, the specific embodiment
Embodiment 1: polyethylene and nylon-66 are reeled off raw silk from cocoons after with 50%: 50% percentage by weight fusion, make islands-in-sea type fibre, make nonwoven fabric by needing machine then, the nonwoven fabric back of plating is solidified, the extraction of toluene adverse current, carried out the expanding drying make the bundle superfine fibre base cloth under 120 ℃ with 18% concentration hydrolysis resistant polyurethane dipping, the DMF aqueous solution, bundle superfine fibre base cloth front is polished with 400 order sand paper by flour milling machine, with the contrary mill of 120 order sand paper the bundle superfine fibre base cloth back side is risen and become mildewed.The bundle superfine fibre base cloth that the dyestuff that use mainly is made up of ACID DYES, DISPERSE DYES etc. will grind behind the skin dyes, and the bundle superfine fibre base cloth that has dyeed oiled, the dyeing base cloth after oiling is rubbed the leather machine with five sections rub by force with 2 meters speed of per minute.Carry out veneer (surface layer adopts ABRASION RESISTANCE polyurethane rubbing dyeing base cloth behind the leather, adhesive layer adopts two liquid type polyurethane, wet combining), place curing chamber slaking 48 hours under 50 ℃ of conditions, after separating, the paper leather makes bundle superfine fibre polyurethane sofa artificial leather semi-finished product, with bundle superfine fibre polyurethane sofa artificial leather semi-finished product immersion extruding, make moisture at 10-20%, drop into then in the boarding machine and under 50 ℃ of hot blast conditions, rubbed line 30-40 minute, blew a cold wind over then 5 minutes, and took out and promptly make bundle superfine fibre polyurethane sofa artificial leather finished product.
The bundle superfine fibre polyurethane sofa artificial leather of present embodiment adopts bundle superfine fibre to make base material, can improve the flexibility of product, and make product have common polyurethane, PVC artificial leather incomparable mechanical strength; Improve the sense of outward appearance skin and the feel of product by flour milling and dyeing processing; By oiling treatment, the superfine fibre of each fibre bundle inside in the base cloth was separated from each other, base cloth is soft, has also increased interfibrous stretching and slide simultaneously, and the TENSILE STRENGTH of tearing of base cloth is improved; Reach the simulated effect of product and make the product sense of touch similar by polyurethane veneer processing method and post processing means to natural leather; Rub post processings such as line and printing by crossing water, make the stiff outward appearance lines of product eliminates, make every effort to reach natural leather feel lines clearly, and further improve the flexibility of product; Manufacture method is reliable, constant product quality.
Embodiment 2: polyethylene and nylon-66 are reeled off raw silk from cocoons after with 35: 65 ratio fusion, make islands-in-sea type fibre, make nonwoven fabric by needing machine then, the nonwoven fabric back of plating is solidified, the extraction of toluene adverse current, carried out the expanding drying make the bundle superfine fibre base cloth under 100 ℃ with 18% concentration hydrolysis resistant polyurethane dipping, the DMF aqueous solution, bundle superfine fibre base cloth front is polished with 400 order sand paper by flour milling machine, with the contrary mill of 120 order sand paper the bundle superfine fibre base cloth back side is risen and become mildewed.The bundle superfine fibre base cloth that the dyestuff that use mainly is made up of ACID DYES, DISPERSE DYES etc. will grind behind the skin dyes, and the bundle superfine fibre base cloth that has dyeed oiled, the dyeing base cloth after oiling is rubbed the leather machine with five sections rub by force with 2 meters speed of per minute.Carry out veneer (surface layer adopts ABRASION RESISTANCE polyurethane rubbing dyeing base cloth behind the leather, adhesive layer adopts two liquid type polyurethane, wet combining), place curing chamber slaking 48 hours under 50 ℃ of conditions, after separating, the paper leather makes bundle superfine fibre polyurethane sofa artificial leather semi-finished product, with bundle superfine fibre polyurethane sofa artificial leather semi-finished product immersion extruding, make moisture at 10-20%, drop into then in the boarding machine and under 55 ℃ of hot blast conditions, rubbed line 30-40 minute, blew a cold wind over then 5 minutes, and took out and promptly make bundle superfine fibre polyurethane sofa artificial leather finished product.
Present embodiment bundle superfine fibre polyurethane sofa artificial leather can reach embodiment 1 effect equally.
Embodiment 3: polyethylene and nylon-66 are reeled off raw silk from cocoons after with 65: 35 ratio fusion, make islands-in-sea type fibre, make nonwoven fabric by needing machine then, the nonwoven fabric back of plating is solidified, the extraction of toluene adverse current, carried out the expanding drying make the bundle superfine fibre base cloth under 130 ℃ with 18% concentration hydrolysis resistant polyurethane dipping, the DMF aqueous solution, bundle superfine fibre base cloth front is polished with 400 order sand paper by flour milling machine, with the contrary mill of 120 order sand paper the bundle superfine fibre base cloth back side is risen and become mildewed.The bundle superfine fibre base cloth that the dyestuff that use mainly is made up of ACID DYES, DISPERSE DYES etc. will grind behind the skin dyes, and the bundle superfine fibre base cloth that has dyeed oiled, the dyeing base cloth after oiling is rubbed the leather machine with five sections rub by force with 2 meters speed of per minute.Carry out veneer (surface layer adopts ABRASION RESISTANCE polyurethane rubbing dyeing base cloth behind the leather, adhesive layer adopts two liquid type polyurethane, wet combining), place curing chamber slaking 48 hours under 50 ℃ of conditions, after separating, the paper leather makes bundle superfine fibre polyurethane sofa artificial leather semi-finished product, with bundle superfine fibre polyurethane sofa artificial leather semi-finished product immersion extruding, make moisture at 10-20%, drop into then in the boarding machine and under 40 ℃ of hot blast conditions, rubbed line 30-40 minute, blew a cold wind over then 5 minutes, and took out and promptly make bundle superfine fibre polyurethane sofa artificial leather finished product.
Present embodiment bundle superfine fibre polyurethane sofa artificial leather can reach embodiment 1 effect equally.
Embodiment 4: polyethylene and nylon-66 are reeled off raw silk from cocoons after with 45: 55 ratio fusion, make islands-in-sea type fibre, make nonwoven fabric by needing machine then, the nonwoven fabric back of plating is solidified, the extraction of toluene adverse current, carried out the expanding drying make the bundle superfine fibre base cloth under 110 ℃ with 18% concentration hydrolysis resistant polyurethane dipping, the DMF aqueous solution, bundle superfine fibre base cloth front is polished with 400 order sand paper by flour milling machine, with the contrary mill of 120 order sand paper the bundle superfine fibre base cloth back side is risen and become mildewed.The bundle superfine fibre base cloth that the dyestuff that use mainly is made up of ACID DYES, DISPERSE DYES etc. will grind behind the skin dyes, and the bundle superfine fibre base cloth that has dyeed oiled, the dyeing base cloth after oiling is rubbed the leather machine with five sections rub by force with 2 meters speed of per minute.Carry out veneer (surface layer adopts ABRASION RESISTANCE polyurethane rubbing dyeing base cloth behind the leather, adhesive layer adopts two liquid type polyurethane, wet combining), place curing chamber slaking 48 hours under 50 ℃ of conditions, after separating, the paper leather makes bundle superfine fibre polyurethane sofa artificial leather semi-finished product, with bundle superfine fibre polyurethane sofa artificial leather semi-finished product immersion extruding, make moisture at 10-20%, drop into then in the boarding machine and under 60 ℃ of hot blast conditions, rubbed line 30-40 minute, blew a cold wind over then 5 minutes, and took out and promptly make bundle superfine fibre polyurethane sofa artificial leather finished product.
Present embodiment bundle superfine fibre polyurethane sofa artificial leather can reach embodiment 1 effect equally.

Claims (7)

1, bundle superfine fibre polyurethane sofa artificial leather, be to be base cloth with the bundle superfine fibre, behind veneer, carry out the sofa artificial leather that a series of post processings form, collagenous fibres are extremely similar in the fibre structure that it is characterized in that product and the natural leather, be that the employing filament number is a skeleton in the three-dimensional structure of the following bundle superfine fibre of 0.01d, the polyurethane with open-celled structure of filling capacity excellence is made through processed therein, and product is a kind of artificial leather material that exactly likes natural leather.
2, the manufacture method of the described bundle superfine fibre polyurethane sofa artificial leather of claim 1 is characterized in that it carries out according to the following steps:
(1) will be with nylon and polyethylene weight ratio mixed melting with 35-65%: 35-65%, through reeling off raw silk from cocoons, acupuncture, pressing, dipping polyurethane, solvent extracts out and makes the bundle superfine fibre base cloth;
(2) (1) bundle superfine fibre base cloth is carried out flour milling, employing thickness sand paper polishes the bundle superfine fibre base cloth respectively and fluffs, make the bundle superfine fibre base cloth be fit to veneer, and base cloth back side effect is extremely similar to natural leather, and dye, oiling treatment is carried out the expanding drying then, makes the dyeing base cloth;
(3) the dyeing base cloth of (2) item after oiling rubbed the leather machine with five sections and rub by force, pass through the polyurethane veneer then, make dyeing base cloth surface uniform color of formation and decorative pattern, make the semi-finished product sofa artificial leather by rubbing line with 2 meters speed of per minute;
(4) (3) semi-finished product sofa artificial leather was carried out water, segmentation drops in the boarding machine then, rubs line 20-40 minute under 40 ℃-60 ℃ condition, and bundle superfine fibre polyurethane sofa artificial leather of the present invention is promptly made in the post processing of filling, finalize the design.
3, the manufacture method of bundle superfine fibre polyurethane sofa artificial leather according to claim 2 is characterized in that the dipping polyurethane described in (1), solvent extracts out to solidifying, the extraction of toluene adverse current, carry out the expanding drying make the bundle superfine fibre base cloth under 100-130 ℃ with 18% concentration hydrolysis resistant polyurethane dipping, the DMF aqueous solution in back that nonwoven fabric is plated.
4, the manufacture method of bundle superfine fibre polyurethane sofa artificial leather according to claim 2, it is characterized in that the bundle superfine fibre base cloth that the dyeing described in (2), oiling treatment are to use the dyestuff of mainly being made up of ACID DYES, DISPERSE DYES etc. will grind behind the skin dyes, and the bundle superfine fibre base cloth that has dyeed is oiled.
5, the manufacture method of bundle superfine fibre polyurethane sofa artificial leather according to claim 2 is characterized in that the bundle superfine fibre base cloth surface lining described in (3) is a polyurethane resin.
6, the manufacture method of bundle superfine fibre polyurethane sofa artificial leather according to claim 5 is characterized in that described veneer is that surface layer adopts ABRASION RESISTANCE polyurethane, and adhesive layer adopts two liquid type polyurethane, wet combining.
7, the manufacture method of bundle superfine fibre polyurethane sofa artificial leather according to claim 2 is characterized in that the water of crossing described in (4) is with bundle superfine fibre polyurethane sofa artificial leather semi-finished product immersion extruding, makes moisture at 10-20%.
CN 03111848 2003-01-30 2003-01-30 Bundle-like ultrafine fibre polyurethane sofa leather and its production method CN1219126C (en)

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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102234940B (en) * 2010-04-23 2013-08-28 上海华峰超纤材料股份有限公司 Preparation method of superfine fiber suede leather and prepared superfine fiber suede leather
CN102392364A (en) * 2011-07-22 2012-03-28 烟台万华超纤股份有限公司 Superfine fiber synthetic leather for basketball and preparation method thereof
CN102517924B (en) * 2011-12-05 2013-08-14 无锡双象超纤材料股份有限公司 Manufacturing method of low-viscosity superfine polyamide chopped fiber glove leather
CN103497539B (en) * 2013-08-22 2016-05-04 河北永泰柯瑞特化工有限公司 One class superfine fiber chemical leather dedicated dye and preparation method thereof
CN103741497B (en) * 2013-12-18 2015-09-09 上海华峰超纤材料股份有限公司 Island ultrafine fiber suede with writing effect and preparation method thereof
CN104164788B (en) * 2014-07-31 2016-08-24 佛山高明骏腾塑胶有限公司 A kind of PVC calendering foam leather and preparation method thereof
CN104878611A (en) * 2015-04-20 2015-09-02 天守(福建)超纤科技股份有限公司 Manufacturing method for hydrolysis-resistant superfine fiber synthetic leather
CN108729252A (en) * 2018-07-18 2018-11-02 苏州瑞高新材料有限公司 A kind of PU composite leathers of 3D effect and preparation method thereof

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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.7.31 TO 2014.8.1; CHANGE OF CONTRACT

Name of requester: QUANZHOU WANHUA SHIWANG MICROFIBER CO., LTD

Effective date: 20090824

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Assignee: Quanzhou Wanhua Shiwang Microfiber Co., Ltd.

Assignor: Yantai Wanhua Super-Fibre Co., Ltd.

Contract fulfillment period: 2009.7.31 to 2014.8.1 contract change

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Denomination of invention: Bundle-like ultrafine fibre polyurethane sofa leather and its production method

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