CN103231576B - Collagen fiber regenerated leather surface treatment method - Google Patents
Collagen fiber regenerated leather surface treatment method Download PDFInfo
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- CN103231576B CN103231576B CN201310119119.6A CN201310119119A CN103231576B CN 103231576 B CN103231576 B CN 103231576B CN 201310119119 A CN201310119119 A CN 201310119119A CN 103231576 B CN103231576 B CN 103231576B
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Abstract
The invention related to a collagen fiber regenerated leather surface treatment method. According to the treatment method, a layer of wet-method resin buffering layer is manufactured on the surface of one side of a substrate cloth with a polyurethane wet method; a dry-method resin surface layer is manufactured with a polyurethane dry method; when the resin buffering layer and the resin surface layer on the surface of one side of the substrate cloth are molded, the surface of the other side of the substrate cloth is subjected to a hot lamination adhesion treatment with collagen fiber regenerated leather. Therefore, a composite leather bonding strength reduction phenomenon caused by a sequence that the substrate cloth is first bonded with the collagen fiber regenerated leather and then subjected to polyurethane wet treatment is avoided. Also, according to the treatment method, polyurethane is directly coated on the substrate cloth, and printing and texture rubbing treatments are then carried out, such that a defect of poor imitation performance of surface manufacturing by using a conventional release paper medium on the substrate surface is avoided. Further, with roughening treatment and the like, the composite leather obtained with the method has an effect closer to that of first-layer genuine leather. The product can be used for manufacturing high-end handbags and sofa materials.
Description
Technical field
The present invention relates to the manufacture method of non-woven material, be specifically related to a kind of Collagenous fiber bonded leather surface treatment method.
Background technology
The tailing quantity of natural leather is very large, if carry out secondary utilization to it, particularly secondary operations becomes regenerated bark, can produce sizable wealth, produces positive meaning to energy-saving and environment friendly simultaneously.But the same with double-layer fur, the appearance characteristics of the regenerated bark be made up of collagenous fibres is poor.Therefore, such as the Composite Skin of regenerated bark as band grain style is used, then required that the surface of this Composite Skin is formed with the resin bed imitating band grain.
On the one hand, with double-layer fur unlike, because corium collagenous fibres length after separating fibre shortens, therefore comparatively corium intensity is low for the intensity of Collagenous fiber bonded leather, therefore, need to need to increase one deck casing play to strengthen the intensity of leather between Collagenous fiber bonded leather and resin bed, as application number a kind of compound type imitated skin of collagen fiber disclosed in the Chinese patent of 201120141782.2, it is made up of three-decker, comprises superficial layer, the casing play of synthetic staple composition and the skin corium of collagenous fibres composition.Here, just need between superficial layer and casing play to carry out compound, it is that the online water recorded in the Chinese patent of 201120141782.2 stings compound and application number is the bonding compound recorded in the Chinese patent of 201220595549.6 that concrete complex method comprises application number.By contrast, the leather combined strength bination utilizing binding agent bonding compound to obtain is higher; And the plant equipment cost of online water thorn compound is high, in addition, in this method, the thickness of Collagenous fiber bonded leather is also limited to water thorn pressure.
On the other hand, process covered with paint, lacquer, colour wash, etc. by polyurethane about leather surface, Japanese Patent Publication spy report is opened flat 5-345384 and is recorded, can, by between double-layer fur and polyurethane based resin epidermis, sticker adhesion be utilized to comprise the synthetic resin cushion of the micro-porous layer of wet method resin to the surface avoiding the concaveconvex structure on double-layer fur surface to have influence on polyurethane based resin epidermis.This synthetic resin cushion is obtained by polyurethane wet technique, specifically moves film by release liners medium and makes face at Ji Bushang, or is directly coated in and is carried out wet-treating again by after coating surface.By contrast, release liners medium moves the finished product shortage leather effect that film makes face method acquisition.If but adopt direct coating to carry out wet-treating again, in the polyurethane slurry then applied during wet-treating, intensive polar solvent such as dimethyl formamide will be dissolved in water, due to this kind solvent to a lot of organic matter even macromolecule have certain dissolubility, if treat that then wet-treating will reduce its adhesion strength containing polymer electrolyte binding agent in the product of wet-treating.So, compound artificial leather being obtained for bonding compound, although this method of wet-treating acquisition synthetic resin cushion emulation property is high again by directly applying polyurethane, damaging its adhesion strength.
Therefore, how surface treatment carried out to Collagenous fiber bonded leather and then obtain a kind ofly there is good appearance, high bond strength and the Composite Skin of emulation having become industry to pay close attention to and technical problem to be solved.To this, the application has done actively making repeated attempts of excellence, has looked for the method for dealing with problems.
Summary of the invention
The technical issues that need to address of the present invention are to provide a kind of Collagenous fiber bonded leather surface treatment method, to obtain a kind of compound artificial leather with good appearance, high bond strength and emulation.
The technical issues that need to address of the present invention are achieved through the following technical solutions:
A kind of Collagenous fiber bonded leather surface treatment method, comprises the following steps:
(1) by the side of Collagenous fiber bonded leather with carrying out sanding process to eliminate the out-of-flatness of this side of Collagenous fiber bonded leather; Preferably carry out sanding process with polishing machine;
(2) select the Ji Bu in order to strengthen Collagenous fiber bonded leather, base cloth is the one in looped fabric, woven fabric and non-woven fabrics; One deck wet method resin cushion is first made on the surface in base cloth side; Then one deck dry method resin surface layer is reproduced on the surface at wet method resin cushion opposite side; After coating wet method resin cushion and dry method resin surface layer, Ji Bu becomes base skin;
(3) gluing is carried out through glue spreader in the Collagenous fiber bonded leather side that base cloth is uncoated in the side of sanding process and/or base skin, then Collagenous fiber bonded leather and Ji Pi are carried out thermo-compression bonding compound through a composite roll, obtain Composite Skin;
(4) Composite Skin obtained is carried out wet steaming with wet steaming machine to process, eliminate Composite Skin surface folding and softening Composite Skin;
(5) side napper exposed for Collagenous fiber bonded leather in Composite Skin after wet steaming is carried out wharf's pavement quality;
(6) trimming, rolling;
Wherein, step (1) and (2) are carried out successively, are carried out simultaneously or carry out successively after exchange sequence; Then step (3), (4), (5) and (6) are carried out successively again behind completing steps (1) and (2).
Preferably, in above-mentioned surface treatment method, in described step (1), also needed Collagenous fiber bonded leather fabric dyeing machine to be carried out dyeing process before sanding process.
Preferably, in above-mentioned surface treatment method, in described step (2), also need after making one deck dry method resin surface layer to carry out printing treatment with three printing machines, the figuratum ink layer of printing last layer tool on the opposite side surface of described dry method resin surface layer.
Further preferably, in above-mentioned surface treatment method, in described step (2), after printing, described base skin also needs to rub line in special cylinder.The same washing machine principle of special cylinder, constantly falls to rub described dry method resin surface layer just can be made to produce many different levels.
Preferably, in above-mentioned surface treatment method, in described step (6), before rolling, described Composite Skin also needs to carry out spraying and/or embossing process.
Preferably, in above-mentioned surface treatment method, respectively apply one deck glue point in the described Collagenous fiber bonded leather side that base cloth is uncoated in the side of sanding process and described base skin in described step (3), carry out thermo-compression bonding compound.
Compared with prior art, the present invention has the following advantages:
1, a kind of Collagenous fiber bonded leather surface treatment method of the present invention, in this processing method, first make one deck wet method resin cushion in a side surface polyurethane wet technique of Ji Bu, one deck dry method resin surface layer is made again with polyurethane dry process, after the resin cushion and resin surface formable layer of scrim surfaces, again heat pressure adhesive process is carried out with Collagenous fiber bonded leather in base cloth opposite side surface, avoid base cloth and first bond with Collagenous fiber bonded leather and carry out the phenomenon that Composite Skin adhesion strength that polyurethane wet process there will be declines again.
2, a kind of Collagenous fiber bonded leather surface treatment method of the present invention, in this processing method, polyurethane is directly coated on base cloth, carries out subsequently printing, rubbing line process again, the defect that the emulation that the release liners medium avoiding routine occurs in substrate surface face of making is not high; Add wharf's pavement quality etc., the effect of the Composite Skin close head layer corium that the inventive method obtains; The product obtained can be used to make senior handbag and template sofa material etc.
3, a kind of Collagenous fiber bonded leather surface treatment method of the present invention, in this processing method, Ji Bu and Collagenous fiber bonded leather to be bondd compound by binding agent, and the combined strength bination obtaining Composite Skin is high, and avoid and utilize high Spunlace line to carry out online water thorn compound; Meanwhile, the thickness in order to its kind of base cloth and thickness and Collagenous fiber bonded leather of strengthening Collagenous fiber bonded leather can be unrestricted, thus make the kind of the Composite Skin obtained and the performance such as pliability, intensity can be abundanter.
Detailed description of the invention
Below in conjunction with embodiment, the specific embodiment of the present invention is described further.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
The present invention relates to a kind of Collagenous fiber bonded leather surface treatment method, it comprises the following steps successively:
(1) Collagenous fiber bonded leather fabric dyeing machine is carried out dyeing process, the concentration of coloring agent and dyeing time are depending on contaminated color, and generally, stain concentration is 0.1 ~ 10%, and dyeing time is a few minutes arrive several hours; The side polishing machine of the Collagenous fiber bonded leather after dyeing carries out sanding process, to eliminate the out-of-flatness of this side of Collagenous fiber bonded leather.
(2) select the Ji Bu in order to strengthen Collagenous fiber bonded leather, Ji Bu is selected from looped fabric, woven fabric and non-woven fabrics; First apply one deck polyurethane formulation liquid with the roll coating speeds of 2 ~ 10g/sf on the surface in base cloth side, then base cloth is immersed in the water to remove the organic solvent in polyurethane formulation liquid, then dry and form wet method resin cushion; Then apply second layer polyurethane formulation liquid with the roll coating speeds of 2 ~ 20g/sf on the surface at the opposite side of wet method resin cushion, then directly dry and form dry method resin surface layer, now base cloth becomes base skin; Then printing treatment is carried out with the figuratum ink layer of the tool printing last layer very thin thickness on the surface of dry method resin surface layer opposite side with three printing machines; Finally base skin is rubbed line in special cylinder, the same washing machine principle of special cylinder, constantly fall to rub described dry method resin surface layer just can be made to produce many different levels.
(3) gluing is carried out through glue spreader in the Collagenous fiber bonded leather side that base cloth is uncoated in the side of sanding process and/or base skin, preferably all apply some rhombus glue points in the Collagenous fiber bonded leather side that base cloth is uncoated in the side and Ji Pi of sanding process; Then Collagenous fiber bonded leather and Ji Pi are combined with each other through a composite roll thermo-compression bonding, obtain Composite Skin;
(4) Composite Skin obtained is carried out wet steaming with wet steaming machine to process, wet steaming temperature is 130 ~ 150 DEG C, humidity about 37%, and the time is 2 ~ 5 minutes, to eliminate surface folding and softening Composite Skin;
(5) side carbon brush exposed for Collagenous fiber bonded leather in Composite Skin after wet steaming or card pile-drawing machine are carried out wharf's pavement quality, to increase emulation and the richness of Composite Skin;
(6) trimming is carried out in irregular for the Composite Skin of acquisition corner, then carry out spraying and/or embossing process, last rolling, obtains product.
Certainly, in above-mentioned processing method, step (1) and (2) can also be carry out successively after carrying out simultaneously or exchange sequencing.
Base cloth is first carried out polyurethane wet process and polyurethane dry process by the method successively, again itself and Collagenous fiber bonded leather are carried out heat pressure adhesive process, avoid base cloth and first bond with Collagenous fiber bonded leather and carry out the phenomenon affecting Composite Skin adhesion strength that polyurethane wet process there will be again.And Ji Bu and Collagenous fiber bonded leather to be bondd compound by binding agent in this method, and combined strength bination is high, and avoid and utilize high Spunlace line to carry out online water thorn compound; Meanwhile, the thickness of the kind of base cloth and thickness and Collagenous fiber bonded leather can not by the restriction of water jet process, thus makes the kind of available Composite Skin and the performance such as pliability, intensity can be abundanter.
Above-mentioned each embodiment is to the preferred embodiment of the present invention.It should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. a Collagenous fiber bonded leather surface treatment method, is characterized in that comprising the following steps:
(1) side of Collagenous fiber bonded leather is carried out sanding process to eliminate the out-of-flatness of this side of Collagenous fiber bonded leather;
(2) select the Ji Bu in order to strengthen Collagenous fiber bonded leather, base cloth is the one in looped fabric, woven fabric and non-woven fabrics; One deck wet method resin cushion is first made on the surface in base cloth side; Then one deck dry method resin surface layer is reproduced on the surface at wet method resin cushion opposite side; After coating wet method resin cushion and dry method resin surface layer, Ji Bu becomes base skin;
(3) gluing is carried out through glue spreader in the Collagenous fiber bonded leather side that base cloth is uncoated in the side of sanding process and/or base skin, then Collagenous fiber bonded leather and Ji Pi are carried out thermo-compression bonding compound through a composite roll, obtain Composite Skin;
(4) Composite Skin obtained is carried out wet steaming with wet steaming machine to process, eliminate Composite Skin surface folding and softening Composite Skin;
(5) side napper exposed for Collagenous fiber bonded leather in Composite Skin after wet steaming is carried out wharf's pavement quality;
(6) trimming, rolling;
Wherein, step (1) and (2) are carried out successively, are carried out simultaneously or carry out successively after exchange sequence; Then step (3), (4), (5) and (6) are carried out successively again behind completing steps (1) and (2).
2. processing method as claimed in claim 1, is characterized in that: in described step (1), also needs Collagenous fiber bonded leather fabric dyeing machine to be carried out dyeing process before sanding process.
3. processing method as claimed in claim 1, it is characterized in that: in described step (2), also need after making one deck dry method resin surface layer to carry out printing treatment with three printing machines, the figuratum ink layer of printing last layer tool on the opposite side surface of described dry method resin surface layer.
4. processing method as claimed in claim 3, is characterized in that: in described step (2), after printing, described base skin also needs to rub line in special cylinder.
5. processing method as claimed in claim 1, is characterized in that: in described step (6), before rolling, described Composite Skin also needs to carry out spraying and/or embossing process.
6. the processing method as described in claim 1 to 5 any one, it is characterized in that: respectively apply one deck glue point in the described Collagenous fiber bonded leather side that base cloth is uncoated in the side of sanding process and described base skin in described step (3), carry out thermo-compression bonding compound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310119119.6A CN103231576B (en) | 2013-04-08 | 2013-04-08 | Collagen fiber regenerated leather surface treatment method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310119119.6A CN103231576B (en) | 2013-04-08 | 2013-04-08 | Collagen fiber regenerated leather surface treatment method |
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| CN103231576A CN103231576A (en) | 2013-08-07 |
| CN103231576B true CN103231576B (en) | 2015-04-15 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2842501T5 (en) | 2015-09-21 | 2023-04-13 | Modern Meadow Inc | Fiber Reinforced Fabric Composite Materials |
| US11542374B2 (en) | 2016-02-15 | 2023-01-03 | Modern Meadow, Inc. | Composite biofabricated material |
| AU2018253595A1 (en) | 2017-11-13 | 2019-05-30 | Modern Meadow, Inc. | Biofabricated leather articles having zonal properties |
| CN113286864A (en) | 2019-01-17 | 2021-08-20 | 现代牧场股份有限公司 | Layered collagen material and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101204867A (en) * | 2007-12-19 | 2008-06-25 | 浙江禾欣实业集团股份有限公司 | Producing method of PU divert film |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04194086A (en) * | 1990-11-28 | 1992-07-14 | Achilles Corp | Synthetic leather |
| JPH05345384A (en) * | 1992-06-15 | 1993-12-27 | Achilles Corp | Split leather |
| JP3776428B2 (en) * | 2002-12-27 | 2006-05-17 | 株式会社加平 | Polyurethane foam sheet and method for producing laminate sheet using the same |
| CN202187225U (en) * | 2011-06-18 | 2012-04-11 | 天守(福建)超纤科技股份有限公司 | Skin-imitated and synthetic leather |
| CN102605631B (en) * | 2012-03-19 | 2013-12-04 | 山东德信皮业有限公司 | Method for treating collagen fiber non-woven substrate surface |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101204867A (en) * | 2007-12-19 | 2008-06-25 | 浙江禾欣实业集团股份有限公司 | Producing method of PU divert film |
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