CN107059420A - Aqueous dry method foaming clothing leather and preparation method thereof - Google Patents
Aqueous dry method foaming clothing leather and preparation method thereof Download PDFInfo
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- CN107059420A CN107059420A CN201611260959.4A CN201611260959A CN107059420A CN 107059420 A CN107059420 A CN 107059420A CN 201611260959 A CN201611260959 A CN 201611260959A CN 107059420 A CN107059420 A CN 107059420A
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- foaming
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, 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
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial 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
- D06N3/14—Artificial 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
- D06N3/145—Artificial 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 two or more layers of polyurethanes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, 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
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0043—Artificial 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
- D06N3/0045—Artificial 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, 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
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial 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
- D06N3/0061—Organic 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, 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
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
- D06N3/0077—Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, 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
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0095—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by inversion technique; by transfer processes
- D06N3/0097—Release surface, e.g. separation sheets; Silicone papers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, 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
- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
- D06N2209/1642—Hardnes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, 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
- D06N2211/00—Specially adapted uses
- D06N2211/10—Clothing
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, 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
- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/28—Artificial leather
Abstract
The present invention provides and is sequentially coated with foaming layer and surface layer in aqueous dry method foaming clothing leather, including base fabric, base fabric；The slurry of foaming layer includes following raw material component：250 parts of waterborne polyurethane resin, 0.2~1.2 part of water-based thickener, 1~5 part of foaming agent, 1~5 part of foam stabilizer, 0.5~1.5 part of water cross-linking agent；The slurry of surface layer includes following raw material component：100 parts of waterborne polyurethane resin, 2~18 parts of aqueous color paste, 0.4~2 part of water-based thickener, 0.2~1 part of defoamer, 0.5~2 part of levelling agent.The present invention is directly bonded base fabric in aqueous dry method foams clothing leather preparation process using the slurry of foaming layer so that the aqueous dry method foaming clothing leather of acquisition is soft, has very much voluptuousness, and can reach higher performance requirement and environmental protection standard.
Description
Technical field
The present invention relates to clothing leather production technology field, a kind of aqueous dry method foaming clothing leather and its preparation are specifically disclosed
Method.
Background technology
Clothing leather has good feel, is widely used in overcoat, underwear etc., the change and consumer's taste with market
Lifting, requires more and more higher, the quality of traditional clothing leather can not meet consumer demand, open to the class of clothing leather
It is inevitable direction to send out high-grade clothing leather.
The clothing leather that in the market is circulated, entirely solvent-borne type wet method bass clothing leather and solvent-borne type dry method veneer clothes
Leather.The advantage of solvent-borne type wet method bass clothing leather be product provide feel and voluptuousness very well, and product price very just
Preferably, cost can be controlled in very low scope；But contain substantial amounts of wood powder in solvent-borne type wet method bass clothing leather, can be very big
The performance of bass is had influence in degree, includes the anti-aging problem of bass, so solvent type bass clothing leather is placed 1 year
When powder phenomenon-tion occurs.Also, due to the limitation of solvent-borne type wet production line tension, solvent-borne type wet method scheme can not be made
High resilience height stretching clothing leather.Solvent-borne type wet method is unable to reach the clothing leather of high resilience height stretching, and solvent-borne type is pasted from the knife of dry method 3
Base fabric is closed, comparative superiority in terms of solvent-borne type wet method bass clothing leather, its feel and stretching is contrasted, but be unable to reach wet method shellfish
The voluptuousness of this clothing leather.
Prior art has a Chinese patent to disclose a kind of aqueous clothing leather, realizes aqueous clothing leather feel and drawing
The breakthrough of aspect is stretched, the aqueous clothing leather includes being sequentially coated with bottom, foaming middle level and surface layer, bottom, hair in base fabric, base fabric
Middle level and surface layer are steeped using aqueous polyurethane slurry composition.But, it has been investigated that, bottom is viscous as being joined directly together with base fabric
Layer is connect, it is wet combining that aqueous bottom is selected in laminating, and under the high temperature conditions, viscosity can decline very greatly waterborne polyurethane resin,
Cause resin penetration base fabric clearly, situation about being hardened occurs after absorbing resin drying in base fabric, so that feel is influenceed, and
Laminate pressure is difficult to control in clothing leather production technology, and then influences product effect.
The content of the invention
It is an object of the invention to the defect for overcoming prior art, there is provided a kind of aqueous dry method foaming clothing leather and its preparation
Method, the clothing leather avoids the problem of clothing leather easily hardens caused by bottom in original technology so that clothing leather feel is soft
Soft, voluptuousness is more preferable.
In order to realize object above and other purposes, the present invention including following technical scheme by realizing：A kind of water
Property dry method foaming clothing leather, including base fabric is sequentially coated with foaming layer and surface layer in the base fabric；The slurry bag of the foaming layer
Include following raw material component：250 parts of waterborne polyurethane resin, 0.2~1.2 part of water-based thickener, 1~5 part of foaming agent, surely
1~5 part of infusion, 0.5~1.5 part of water cross-linking agent；The slurry of the surface layer includes following raw material component：Aqueous poly- ammonia
100 parts of ester resin, 2~18 parts of aqueous color paste, 0.4~2 part of water-based thickener, 0.2~1 part of defoamer, 0.5~2 part of levelling agent.
Preferably, the slurry of the surface layer also includes following raw material component：1~5 part of polytetrafluoroethylene (PTFE) wax powder.It is poly-
Tetrafluoroethene wax powder has excellent smooth performance and adhesion strength, plays the effect for improving light.
Preferably, the waterborne polyurethane resin that the slurry of the foaming layer and the surface layer is used is aliphatic water
Property polyurethane.Water-based aliphaic polyurethane resin have it is special it is excellent it is cold-resistant split, color inhibition and light resistance.
It is highly preferred that one kind in Hefei section day KTT628 and KT636F of the model of the waterborne polyurethane resin or
Two kinds.
Preferably, the water-based thickener that the slurry of the foaming layer and the surface layer is used is association type polyurethane
Any one in thickener and alkali swelling type acrylic thickener or two kinds.
It is highly preferred that model RM2020, RHEOLATE208 of the water-based thickener.
Preferably, described foaming agent is organic-silicon-modified foaming agent, lauryl sodium sulfate composite foamable agent and tristearin
Any one in Barbiturates foaming agent is a variety of.
Preferably, the foam stabilizer is silicones polyethers type of latex type foam stabilizer.
Preferably, the water cross-linking agent is any one in two imido of carbonization and aziridines crosslinking agent or two kinds.
It is highly preferred that the model PZP-1000 of the water cross-linking agent.
Preferably, the defoamer is organic-silicon-modified defoamer, polyethers modification defoamer and mineral oil based antifoam
In any one or it is a variety of.
It is highly preferred that model BYK-045, TEGO902W of the defoamer.
Preferably, the levelling agent is organosilicon levelling agent and mixes any one in acrylic compounds levelling agent or two
Kind.
It is highly preferred that the levelling agent model BD-3376.
Invention additionally discloses a kind of preparation method for preparing aqueous dry method foaming clothing leather described above, including following step
Suddenly：1) after the slurry that surface layer is directly coated in release liners, heated-air drying, cooling are carried out；2) foaming is coated on the surface layer
The slurry of layer, then the foaming layer then carried out heated-air drying, cooled down by make-up machine laminating base fabric；3) divest described
Release liners.This method causes aqueous dry method foaming clothing leather product not only to have the effect of spandex fabric, and feel is more soft,
There is very much voluptuousness.
Preferably, in the step 1) described in surface layer coat thickness be 0.10~0.20mm, in the step
1) temperature of heated-air drying is 90~120 DEG C in.
Preferably, in the step 2) described in foaming layer coat thickness be 0.45~0.65mm, in the step
It is rapid 2) in heated-air drying temperature be 90~130 DEG C.Increase the thickness of foaming layer, the voluptuousness of leather itself, warmth retention property can be improved
Also there is corresponding lifting.
It is highly preferred that in the step 2) described in foaming layer coat thickness be 0.55~0.60mm.
Preferably, the step 1) to heated-air drying described in 2) it is to use two cross air blasting up and down from the release liners
The mode of heating is dried.
Preferably, the step 1) hot air drying is carried out to the release liners being in the state of horizontal movement in 2)
Dry, the speed of the horizontal movement is 20~30m/min.
Preferably, the base fabric is four-way stretch fabric.Four-way stretch fabric is referred in the side of the front, rear, left and right of cloth four
To all flexible cloth, generally it can allow cloth that there is larger elasticity by setting rib construction.By four-way stretch fabric
The aqueous dry method foaming clothing leather prepared, with four-way elastic force well, is suitable for the clothes such as leather trousers, and feel is soft
It is soft.
Preferably, the preparation method is further comprising the steps of：Complete step 3) after, by high temperature embossing to the face
Layer carries out the sizing of surface pattern, obtains another aqueous dry method foaming clothing leather.This method makees aqueous dry method foaming clothing leather
Go out embossing and rub line effect, aqueous dry method foaming clothing leather is soft, and have very much voluptuousness, lines third dimension is strong, clear, equal
It is even, it is adaptable to men's clothing and some other garment language.
The process of high temperature embossing is：High-temperature high-pressure is carried out at a temperature of 150~190 DEG C to the surface layer by embossing machine
Flower, carries out cooling and shaping at a temperature of 15~25 DEG C.
Preferably, the base fabric is non-stretchable cloth.Such as, non-stretchable cloth is linen-cotton or all cotton fabric.
In summary, the present invention provides aqueous dry method foaming clothing leather and preparation method thereof, beneficial effects of the present invention：
The clothing leather preparation method of the present invention is directly bonded base fabric using the slurry of foaming layer, it is to avoid original technology midsole
The problem of clothing leather easily hardens caused by layer so that clothing leather is soft, there is very much voluptuousness.The present invention uses aqueous polyurethane
In resin modulus and it is strongly tensile the characteristics of, in the system of foaming, be stretchable to twice or the above elongation, and ensure bubble
Hole does not rupture.Simultaneously using waterborne polyurethane resin slurry as coating film forming matter, and the nothing during preparation and use
Any organic solvent, solves the problem of current solvent-borne type clothing leather organic solvent pollution is remained.
Further, the present invention will be embossed the sizing that surface effect lines is carried out to the surface layer by high temperature so that obtain
The aqueous dry method foaming clothing leather of clothing leather is soft, there is very much voluptuousness, and lines third dimension is strong, can meet market to clothing leather
Demand.
Embodiment
The present invention is expanded on further with reference to embodiment.It should be understood that embodiment is merely to illustrate the present invention, and it is unrestricted
The scope of the present invention.
Embodiment 1
(1) preparation of surface layer and the slurry of foaming layer：
(1) preparation of the slurry of surface layer：
Take 100kg waterborne polyurethane resin KTT628 (solid content is 40%, Hefei section day), 6kg aqueous color paste,
0.8kg RHEOLATE208 water-based thickeners, 0.4kg TEGO902W defoamers, 0.5kg BD-3376 levelling agents are added
In mixer, after stirring, stirring to slurry is uniformly dispersed.
(2) preparation of the slurry of foaming layer：
Sequentially add 0.8kg's in 250kg waterborne polyurethane resins KT636F (solid content is 40%, Hefei section day)
RHEOLATE208 water-based thickeners, 4kg foaming agents zinc stearate (Henan Hui Er nanometers), (treasuredization in Qingdao of 4kg foam stabilizers 207
Work) and 1.2kg water cross-linking agents PZP-1000 (Guangzhou is firm and persistent), stirred, foamed to 1.5 times of original volume with homogenizer.
(2) processing method that film is moved using dry method, prepares aqueous dry method foaming clothing leather：
(1) in release liners after the slurry of direct applying coating thickness for 0.10mm surface layer, in 100 DEG C, length 15m
Heated-air drying is carried out in baking oven, heated-air drying is carried out under conditions of speed 25m/min, is cooled down through chill roll.
(2) on the surface layer of coating, applying coating thickness is the slurry of 0.45mm foaming layer, four-way stretch fabric of fitting,
Laminate pressure control enters back into 100 DEG C, the length 25m interior progress heated-air drying of baking oven, in speed 25m/min bar in 2.8kg
Heated-air drying is carried out under part, is cooled down through chill roll.
(3) release liners are divested, bundling prepares aqueous dry method foaming clothing leather.
Embodiment 2
(1) preparation of surface layer and the slurry of foaming layer：
(1) preparation of the slurry of surface layer：
Take 100kg waterborne polyurethane resin KTT628 (solid content is 40%, Hefei section day), 2kg aqueous color paste,
0.4kg RHEOLATE208 water-based thickeners, 0.2kg BYK-045 defoamers, 0.9kg BD-3376 levelling agents and 4kg gather
Tetrafluoroethene wax powder (0103), is added in mixer, after stirring, and stirring to slurry is uniformly dispersed.
(2) preparation of the slurry of foaming layer：
Sequentially add 1.0kg's in 250kg waterborne polyurethane resins KT636F (solid content is 40%, Hefei section day)
RHEOLATE208 water-based thickeners, 3kg foaming agents zinc stearate (Henan Hui Er nanometers), (treasuredization in Qingdao of 3kg foam stabilizers 207
Work) and 0.8kg crosslinking agents PZP-1000 (Guangzhou is firm and persistent), stirred, foamed to 1.5 times of original volume with homogenizer.
(2) processing method that film is moved using dry method, prepares aqueous dry method foaming clothing leather：
(1) in release liners after the slurry of direct applying coating thickness for 0.15mm surface layer, in 100 DEG C, length 15m
Heated-air drying is carried out in baking oven, heated-air drying is carried out under conditions of speed 20m/min, is cooled down through chill roll.
(2) on the surface layer of coating, the slurry for the foaming layer that coating layer thickness is 0.45mm is coated with, four-way elastic force of fitting
Cloth, laminate pressure is controlled in 2.9kg, is entered back into 120 DEG C, is dried in length 25m baking oven, in speed 25m/min bar
Heated-air drying is carried out under part, is cooled down through chill roll.
(3) release liners are divested, bundling prepares aqueous dry method foaming clothing leather.
Embodiment 3
(1) preparation of surface layer and the slurry of foaming layer：
(1) preparation of the slurry of surface layer：
Take 100kg waterborne polyurethane resin KTT628 (solid content is 40%, Hefei section day), 6kg aqueous color paste,
0.8kg RHEOLATE208 water-based thickeners, 0.4kg TEGO902W defoamers, 0.5kg BD-3376 levelling agents are added
In mixer, after stirring, stirring to slurry is uniformly dispersed.
(2) preparation of the slurry of foaming layer：
Sequentially add 0.8kg's in 250kg waterborne polyurethane resins KT636F (solid content is 40%, Hefei section day)
RHEOLATE208 water-based thickeners, 4kg foaming agents zinc stearate (Henan Hui Er nanometers), (treasuredization in Qingdao of 4kg foam stabilizers 207
Work) and 1.2kg water cross-linking agents PZP-1000 (Guangzhou is firm and persistent), stirred, foamed to 1.5 times of original volume with homogenizer.
(2) processing method that film is moved using dry method, prepares aqueous dry method foaming clothing leather：
(1) in release liners after the slurry of direct applying coating thickness for 0.10mm surface layer, in 100 DEG C, length 15m
Heated-air drying is carried out in baking oven, heated-air drying is carried out under conditions of speed 25m/min, is cooled down through chill roll.
(2) on the surface layer of coating, applying coating thickness is the slurry of 0.55mm foaming layer, all cotton fabric of fitting, laminating
Stress control enters back into 100 DEG C, the length 25m interior progress heated-air drying of baking oven, under conditions of speed 25m/min in 3.1kg
Heated-air drying is carried out, is cooled down through chill roll.
(3) and then release liners are divested, by embossing machine at a temperature of 150 DEG C opposite floor height warm pressing flower, at a temperature of 15 DEG C
The sizing of surface effect lines is carried out, bundling prepares aqueous dry method foaming clothing leather.
Embodiment 4
(1) preparation of surface layer and the slurry of foaming layer：
(1) preparation of the slurry of surface layer：
Take 100kg waterborne polyurethane resin KTT628 (solid content is 40%, Hefei section day), 2kg aqueous color paste,
0.4kg RHEOLATE208 water-based thickeners, 0.2kg BYK-045 defoamers, 0.9kg BD-3376 levelling agents and 4kg gather
Tetrafluoroethene wax powder (0103), is added in mixer, after stirring, and stirring to slurry is uniformly dispersed.
(2) preparation of the slurry of foaming layer：
Sequentially add 1.0kg's in 250kg waterborne polyurethane resins KT636F (solid content is 40%, Hefei section day)
RHEOLATE208 water-based thickeners, 3kg foaming agents zinc stearate (Henan Hui Er nanometers), (treasuredization in Qingdao of 3kg foam stabilizers 207
Work) and 0.8kg crosslinking agents PZP-1000 (Guangzhou is firm and persistent), stirred, foamed to 1.5 times of original volume with homogenizer.
(2) processing method that film is moved using dry method, prepares aqueous dry method foaming clothing leather：
(1) in release liners after the slurry of direct applying coating thickness for 0.15mm surface layer, in 100 DEG C, length 15m
Heated-air drying is carried out in baking oven, heated-air drying is carried out under conditions of speed 20m/min, is cooled down through chill roll.
(2) on the surface layer of coating, the slurry for the foaming layer that coating layer thickness is 0.60mm is coated with, all cotton fabric of fitting, patch
Resultant pressure controls 3.3kg, enters back into 120 DEG C, is dried in length 25m baking oven, is carried out under conditions of speed 25m/min
Heated-air drying, is cooled down through chill roll.
(3) and then release liners are divested, by embossing machine at a temperature of 160 DEG C opposite floor height warm pressing flower, at a temperature of 20 DEG C
The sizing of surface effect lines is carried out, bundling prepares aqueous dry method foaming clothing leather.
Testing result：
The progress of aqueous dry method foaming clothing leather obtained by above-mentioned 4 embodiments is tested, the testing result such as institute of table 1
Show.
The appearance property of aqueous dry method foaming clothing leather prepared by the embodiment 1 to 4 of table 1
| Project | Glossiness (°) | Outward appearance | Feel |
| Embodiment 1 | 70 | Light | It is very soft, it is smooth |
| Embodiment 2 | 79 | Light | It is very soft, it is smooth |
| Embodiment 3 | 72 | Light, there is lines third dimension | It is very soft |
| Embodiment 4 | 82 | Light, there is lines third dimension | It is very soft |
As can be seen from Table 1, the aqueous dry method foaming equal shiny appearance of clothing leather that prepared by embodiment 1 to 2, feel is very soft
It is soft, it is smooth, but embodiment 2 is higher than the glossiness of aqueous dry method foaming clothing leather in embodiment 1.Water prepared by embodiment 3 to 4
Property the dry method foaming equal shiny appearance of clothing leather, have lines third dimension, it is very soft, and embodiment 4 is aqueous more dry than in embodiment 3
The glossiness of method foaming clothing leather is higher.
To sum up, clothing leather preparation method of the invention is directly bonded base fabric using the slurry of foaming layer, it is to avoid bottom is led
The problem of clothing leather of cause easily hardens so that clothing leather is soft, there is voluptuousness very much；With modulus in waterborne polyurethane resin
The characteristics of with height stretching, in the system of foaming, be stretchable to twice or the above elongation, and ensure not breaking for abscess
Split, while using waterborne polyurethane resin slurry as coating film forming matter, and without any organic during preparation and use
Solvent, it is to avoid organic solvent pollution is remained.So, the present invention effectively overcomes various shortcoming of the prior art and has height and produce
Industry value.
More than, only presently preferred embodiments of the present invention, it is not any to the present invention in form and substantial limitation, should
Point out, for those skilled in the art, on the premise of the inventive method is not departed from, can also make some
Improve and supplement, these are improved and supplement also should be regarded as protection scope of the present invention.All those skilled in the art, not
Depart from the spirit and scope of the present invention in the case of, when a little change made using disclosed above technology contents,
Modification and the equivalent variations developed, are the equivalent embodiment of the present invention；Meanwhile, all substantial technologicals according to the present invention are to above-mentioned
The variation, modification and evolution for any equivalent variations that embodiment is made, in the range of still falling within technical scheme.
Claims (10)
1. a kind of aqueous dry method foaming clothing leather, including base fabric, it is characterised in that be sequentially coated with the base fabric foaming layer and
Surface layer；
The slurry of the foaming layer includes following raw material component：250 parts of waterborne polyurethane resin, water-based thickener 0.2
~1.2 parts, 1~5 part of foaming agent, 1~5 part of foam stabilizer, 0.5~1.5 part of water cross-linking agent；
The slurry of the surface layer includes following raw material component：100 parts of waterborne polyurethane resin, 2~18 parts of aqueous color paste,
0.4~2 part of water-based thickener, 0.2~1 part of defoamer, 0.5~2 part of levelling agent.
2. aqueous dry method foaming clothing leather as claimed in claim 1, it is characterised in that：The slurry of the surface layer also includes following
Raw material component：1~5 part of polytetrafluoroethylene (PTFE) wax powder.
3. aqueous dry method foaming clothing leather as claimed in claim 1 or 2, it is characterised in that：The foaming layer and the surface layer
Slurry use the waterborne polyurethane resin be water-based aliphaic polyurethane.
4. aqueous dry method foaming clothing leather as claimed in claim 1 or 2, it is characterised in that：The foaming layer and the surface layer
The water-based thickener that uses of slurry be any in association type polyurethane thickener and alkali swelling type acrylic thickener
One or two kinds of.
5. aqueous dry method foaming clothing leather as claimed in claim 1 or 2, it is characterised in that：Described foaming agent is organosilicon
Any one in modified foaming agent, lauryl sodium sulfate composite foamable agent and stearates foaming agent is a variety of；
And/or, the foam stabilizer is silicones polyethers type of latex type foam stabilizer；
And/or, the water cross-linking agent is any one in two imido of carbonization and aziridines crosslinking agent or two kinds；
The defoamer be organic-silicon-modified defoamer, polyethers be modified any one in defoamer and mineral oil based antifoam or
Person is a variety of；
And/or, the levelling agent is organosilicon levelling agent and mixes any one in acrylic compounds levelling agent or two kinds.
6. a kind of preparation method for preparing 1 to 5 any described aqueous dry method foaming clothing leather, it is characterised in that：Including following
Step：
1) after the slurry that surface layer is directly coated in release liners, heated-air drying, cooling are carried out；
2) slurry of foaming layer is coated on the surface layer, the foaming layer is then passed through into make-up machine laminating base fabric, Ran Houjin
Row heated-air drying, cooling；
3) release liners are divested.
The preparation method of clothing leather 7. aqueous dry method as claimed in claim 6 foams, it is characterised in that：Also include following characteristics
Any one of or it is multinomial：
1) in the step 1) in, the thickness of the coat of the surface layer is 0.10~0.20mm, and the temperature of heated-air drying is 90
~120 DEG C；
2) in the step 2) in, the thickness of the coat of the foaming layer is 0.45~0.65mm, and the temperature of heated-air drying is
90~130 DEG C；
3) step 1) to heated-air drying described in 2) it is to use the side heated from two cross air blastings up and down of the release liners
Formula is dried；
4) in the step 1) heated-air drying, the water are carried out to the release liners being in the state of horizontal movement in 2)
The speed of flat motion is 20~30m/min.
The preparation method of clothing leather 8. aqueous dry method as claimed in claim 6 foams, it is characterised in that：The base fabric is four-way
Stretch fabric.
The preparation method of clothing leather 9. aqueous dry method as claimed in claims 6 or 7 foams, it is characterised in that：The preparation side
Method is further comprising the steps of：Complete step 3) after, the sizing that surface pattern is carried out to the surface layer is embossed by high temperature.
The preparation method of clothing leather 10. aqueous dry method as claimed in claim 9 foams, it is characterised in that：The base fabric is non-
Stretch fabric.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611260959.4A CN107059420A (en) | 2016-12-30 | 2016-12-30 | Aqueous dry method foaming clothing leather and preparation method thereof |
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|---|---|---|---|
| CN201611260959.4A CN107059420A (en) | 2016-12-30 | 2016-12-30 | Aqueous dry method foaming clothing leather and preparation method thereof |
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| CN107059420A true CN107059420A (en) | 2017-08-18 |
Family
ID=59623380
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| CN201611260959.4A Pending CN107059420A (en) | 2016-12-30 | 2016-12-30 | Aqueous dry method foaming clothing leather and preparation method thereof |
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| CN109403052A (en) * | 2018-09-06 | 2019-03-01 | 福建隆上超纤有限公司 | A kind of preparation method of stretch-proof artificial leather |
| CN110318261A (en) * | 2019-07-26 | 2019-10-11 | 兰州科天新材料股份有限公司 | A kind of waterproof cloth leather and preparation method thereof |
| CN110318263A (en) * | 2019-07-26 | 2019-10-11 | 兰州科天新材料股份有限公司 | A kind of aqueous cushion leather and preparation method thereof |
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