CN109252384A - A kind of two-sided leather of Environment-friendlywear-resistant wear-resistant scratch resistance - Google Patents
A kind of two-sided leather of Environment-friendlywear-resistant wear-resistant scratch resistance Download PDFInfo
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- CN109252384A CN109252384A CN201811213179.3A CN201811213179A CN109252384A CN 109252384 A CN109252384 A CN 109252384A CN 201811213179 A CN201811213179 A CN 201811213179A CN 109252384 A CN109252384 A CN 109252384A
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- Prior art keywords
- layer
- polyurethane
- resistant
- environment
- friendlywear
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- 239000010985 leather Substances 0.000 title claims abstract description 57
- 229920002635 polyurethane Polymers 0.000 claims abstract description 70
- 239000004814 polyurethane Substances 0.000 claims abstract description 70
- 238000000034 method Methods 0.000 claims abstract description 52
- 239000004744 fabric Substances 0.000 claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 239000007787 solid Substances 0.000 claims abstract description 12
- 239000010410 layer Substances 0.000 claims description 102
- 229920005749 polyurethane resin Polymers 0.000 claims description 30
- 239000002002 slurry Substances 0.000 claims description 20
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical class CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 17
- 239000011248 coating agent Substances 0.000 claims description 12
- 238000000576 coating method Methods 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 6
- 239000003945 anionic surfactant Substances 0.000 claims description 5
- 235000001465 calcium Nutrition 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 238000009288 screen filtration Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000012209 synthetic fiber Substances 0.000 claims description 5
- 229920002994 synthetic fiber Polymers 0.000 claims description 5
- 239000002344 surface layer Substances 0.000 claims description 4
- 235000009414 Elaeocarpus kirtonii Nutrition 0.000 claims description 2
- 241000199223 Elaeocarpus kirtonii Species 0.000 claims description 2
- 235000013584 Tabebuia pallida Nutrition 0.000 claims description 2
- 229920002522 Wood fibre Polymers 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000002736 nonionic surfactant Substances 0.000 claims description 2
- 239000011527 polyurethane coating Substances 0.000 claims description 2
- 229920006224 tie layer resin Polymers 0.000 claims description 2
- 239000002025 wood fiber Substances 0.000 claims description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract description 29
- 239000000853 adhesive Substances 0.000 abstract description 6
- 230000001070 adhesive effect Effects 0.000 abstract description 6
- 239000002649 leather substitute Substances 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000011160 research Methods 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 229920002521 macromolecule Polymers 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract description 2
- 235000019256 formaldehyde Nutrition 0.000 description 10
- 238000012360 testing method Methods 0.000 description 10
- 238000001514 detection method Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 5
- 229910001651 emery Inorganic materials 0.000 description 5
- 230000003213 activating effect Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- D06N3/0086—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
- D06N2209/1685—Wear resistance
-
- 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
-
- 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
- D06N2213/00—Others characteristics
- D06N2213/03—Fibrous web coated on one side with at least two layers of the same polymer type, e.g. two coatings of polyolefin
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
The present invention relates to macromolecule polyurethane synthetic leather production fields, more particularly to a kind of two-sided leather of Environment-friendlywear-resistant wear-resistant scratch resistance, it include: base cloth layer, coated on the positive wet polyurethane layer of base cloth layer, coated on the dry method layer of polyurethane on wet process layer, height is printed in the flower-pattern layer in dry layer admittedly, and version is applied to the surface-treated layer in printing layer, the dry method layer of polyurethane coated on the base fabric back side.The present invention passes through the research to wet polyurethane layer and dry method layer of polyurethane, in addition the setting of flower-pattern layer and surface-treated layer, so that leather is more solid wear-resisting, recycle two-sided attaching process, and raw material are to the auxiliary of fitting fastness, a kind of advanced two-sided leather of fitting new process of Environment-friendlywear-resistant wear-resistant scratch resistance is made, it was scraped with hard object without sharp trace on two-sided leather surface made of the present invention, in addition two-sided use for synthetic leather of the invention is bonded alternative composite technique, without using adhesive, contain free formaldehyde in adhesive, serious pollution environment, endanger biological growth and human health, ecological, environmental protective.
Description
Technical field
The present invention relates to macromolecule polyurethane synthetic leather production field more particularly to a kind of two-sided leather of Environment-friendlywear-resistant wear-resistant scratch resistance.
Background technique
Two-sided leather has become the new lover in Synthetic Leather market at this stage.Two-sided Synthetic Leather, its front and back sides are equal
It is different colours, different decorative patterns.So, on the one hand, for consumers, the collocation style of product colour and lines is richer
Richness, style is more various, meets the majority of consumers' diversification, personalized consumption demand；On the other hand, to luggage, shoes etc.
For manufacturer, the back side need to be further processed in common single side leather, and two-sided leather can directly produce production without being reprocessed
Time and cost is greatly saved in product.
Existing two-sided leather on the market, mostly two pieces of single side leathers carry out compounded two-sided leather, this product by
Adhesive is used in centre, feel is partially hard, and technique is also relatively cumbersome, serious waste of resources, moreover containing free in adhesive
Formaldehyde seriously pollutes environment, endangers human health.Another kind be the two-sided leather of fit type, the existing two-sided leather of fit type due to by
Bass and technique limitation, fitting fastness is poor, and peel strength is low, and wear-resisting scratch resistance performance is poor, and product quality is difficult to reach production requirement.
In view of the deficiencies of the prior art, the present invention provides a kind of production sides of the two-sided leather of fit type of Environment-friendlywear-resistant wear-resistant scratch resistance
Method, the invention improve the physical and chemical performance of the two-sided leather of common fit type by the research to wet process bass and attaching process.This hair
Two-sided leather surface made of bright was scraped with hard object without sharp trace, and wear-resisting property is not broken (with reference to QB/T2726- up to 5000 turns
2005 standards are tested, emery wheel model using TABER abrasion wear test machine: CS-10, weight bearing: 750g).
Summary of the invention
The purpose of the present invention is to provide a kind of two-sided leather of Environment-friendlywear-resistant wear-resistant scratch resistance, to solve the above technical problems.
The present invention using following technical scheme in order to solve the above technical problems, realized:
A kind of two-sided leather of Environment-friendlywear-resistant wear-resistant scratch resistance, it is characterised in that: include:
Base cloth layer is coated on the positive wet polyurethane layer of base cloth layer, coated on the dry method layer of polyurethane on wet process layer, high solid print
It brushes in the flower-pattern layer in dry layer, version is applied to the surface-treated layer in printing layer, the dry method layer of polyurethane coated on the base fabric back side.
The production of wet polyurethane layer:
A:40-60 parts of dimethylformamides are put into container, add 0.2-0.5 portions of anionic surfactants, and 0.2-0.5 parts
Nonionic surfactant, the aqueous color paste of 0.01-0.1 add 1-5 parts of light calciums, and 5-10 parts of synthetic fibers powder, 5-10 parts white
Wood fiber powder stirs evenly；
B: 15-25 parts of A and 15-20 parts of polyurethane resin of polyurethane resin B is added into the container of step a, is made into viscous
The wet polyurethane layer slurry that degree is 8000-10000cps/25 DEG C.
C: the wet polyurethane layer slurry that step b is obtained is put into deaeration in vacuum machine；
D: then the filter screen filtration of the wet polyurethane layer slurry 60-100 mesh after deaeration applies wet polyurethane slurry
It is overlying in base fabric, wet polyurethane layer is made.
The production of back side dry method layer of polyurethane:
A: the polyurethane resin C for being 2400cps/25 DEG C with viscosity carries out a scraper processing in textured release paper, so
150-180 DEG C of baking oven is put into afterwards to be dried；
B: after taking out release paper in baking oven, the polyurethane resin D that one layer of viscosity is 2400cps/25 DEG C is coated, coating thickness is
Then 0.12mm passes through 150-180 DEG C of baking oven secondary drying；
C: after taking out step b treated release paper, then the polyurethane tree that one layer of viscosity is 2800cps/25 DEG C is coated on it
Rouge E, coating thickness 0.15mm, by 100-120 DEG C of baking oven be dried to it is half-dried after；
D: being bonded after the release paper in step c is taken out with the bass back side, removes, and dry method layer of polyurethane is made.
Preferably, the base cloth layer 1 is the microtriche cloth of thickness 0.8mm, and base fabric back side cloth hair is smooth.
Preferably, the polyurethane resin A viscosity is cps/25 DEG C of 18-30 ten thousand, solid content 30.0 ± 1.0%, 100% modulus
For 2.0-3.0Mpa, appearance is colourless to weak yellow liquid.The resin voluptuousness is thick and solid, and elasticity is good, high at flesh, the thick rate of low mistake.
Preferably, the polyurethane resin B viscosity is cps/25 DEG C of 16-26 ten thousand, and solid content is 30.0 ± 1.0%, and appearance is
It is colourless to weak yellow liquid.
Preferably, the coating thickness of the wet polyurethane coating is 0.65-0.75cm.
Preferably, the polyurethane resin C be in soft dry method surface layer resin add the dimethyl formyl that mass fraction is 80
Amine dilutes.
Preferably, the polyurethane resin D be in soft dry method surface layer resin add the dimethyl formyl that mass fraction is 80
Amine dilution, then add 3-10 parts of toner and be made after mixing evenly.
Preferably, the polyurethane resin E is the common dry method tie layer resins of one liquid type of ultra-soft matter, is with mass fraction
40-60 parts of dimethylformamide dilutes.
The beneficial effects of the present invention are:
The present invention is by the research to wet polyurethane layer and dry method layer of polyurethane, in addition flower-pattern layer and surface-treated layer are set
It sets, so that leather is more solid wear-resisting, recycles two-sided attaching process and raw material that the auxiliary of fitting fastness is made
A kind of advanced two-sided leather of fitting new process of Environment-friendlywear-resistant wear-resistant scratch resistance, the present invention made of two-sided leather surface scraped with hard object without obvious trace
Mark, in addition two-sided use for synthetic leather of the invention is bonded alternative composite technique, does not use adhesive, contains free formaldehyde in adhesive,
Serious pollution environment endangers biological growth and human health, and the present invention is eliminated from source to be polluted, ecological, environmental protective.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiment is closed, the present invention is further explained, and however, the following embodiments are merely preferred embodiments of the present invention, and not all.
Based on the implementation example in the implementation mode, those skilled in the art's obtained other realities without making creative work
Example is applied, protection scope of the present invention is belonged to.Experimental method in following embodiments is unless otherwise specified conventional method,
The materials, reagents and the like used in the following examples is commercially available unless otherwise specified.
Embodiment 1
A kind of two-sided leather of Environment-friendlywear-resistant wear-resistant scratch resistance, it is characterised in that: include:
Base cloth layer is coated on the positive wet polyurethane layer of base cloth layer, coated on the dry method layer of polyurethane on wet process layer, high solid print
It brushes in the flower-pattern layer in dry layer, version is applied to the surface-treated layer in printing layer, the dry method layer of polyurethane coated on the base fabric back side.
The production of wet polyurethane layer:
A:40 parts of dimethylformamides are put into container, add 0.2 portion of anionic surfactant, 0.2 part of non-ionic surface
Activating agent, 0.01 aqueous color paste add 1 part of light calcium, 5 parts of synthetic fibers powder, and 5 parts of sapwood fiber powder stir evenly；
B: adding 15 parts of polyurethane resin A and 15 parts of polyurethane resin B into the container of step a, and being made into viscosity is
8000-10000cps/25 DEG C of wet polyurethane layer slurry;
C: the wet polyurethane layer slurry that step b is obtained is put into deaeration in vacuum machine；
D: then wet polyurethane slurry is coated on by the filter screen filtration of 70 mesh of wet polyurethane layer slurry after deaeration
In base fabric, wet polyurethane layer is made.
The production of back side dry method layer of polyurethane:
A: the polyurethane resin C for being 2400cps/25 DEG C with viscosity carries out a scraper processing in textured release paper, so
150-180 DEG C of baking oven is put into afterwards to be dried；
B: after taking out release paper in baking oven, the polyurethane resin D that one layer of viscosity is 2400cps/25 DEG C is coated, coating thickness is
Then 0.12mm passes through 150-180 DEG C of baking oven secondary drying；
C: after taking out step b treated release paper, then the polyurethane tree that one layer of viscosity is 2800cps/25 DEG C is coated on it
Rouge E, coating thickness 0.15mm, by 100-120 DEG C of baking oven be dried to it is half-dried after；
D: being bonded after the release paper in step c is taken out with the bass back side, removes, and dry method layer of polyurethane is made.
It is made in 100 two-sided leather by the above process, randomly selects 10, tested with TABER abrasion wear test machine, emery wheel type
Number: CS-10, weight bearing: 750g carries out wearability experiment to two-sided leather, detects two-sided leather and whether can reach 5000 turns and does not break, real
After testing, 10 two-sided leather are extracted from 100 two-sided leather, it is found that 6 surfaces are intact, 2 surface mild wears, 2
It opens and is seriously worn, then two-sided leather is sealed in cloche by qualification rate 60%, in methylene oxide detecting instrument detection cloche
Concentration of formaldehyde, testing result are qualified.
Embodiment 2
A kind of two-sided leather of Environment-friendlywear-resistant wear-resistant scratch resistance, it is characterised in that: include:
Base cloth layer is coated on the positive wet polyurethane layer of base cloth layer, coated on the dry method layer of polyurethane on wet process layer, high solid print
It brushes in the flower-pattern layer in dry layer, version is applied to the surface-treated layer in printing layer, the dry method layer of polyurethane coated on the base fabric back side.
The production of wet polyurethane layer:
A:50 parts of dimethylformamides are put into container, add 0.35 portion of anionic surfactant, 0.35 part of nonionic table
Face activating agent, 0.05 aqueous color paste add 3 parts of light calciums, 7 parts of synthetic fibers powder, and 7 parts of sapwood fiber powder stir evenly；
B: adding 20 parts of polyurethane resin A and 18 parts of polyurethane resin B into the container of step a, and being made into viscosity is
8000-10000cps/25 DEG C of wet polyurethane layer slurry;
C: the wet polyurethane layer slurry that step b is obtained is put into deaeration in vacuum machine；
D: then wet polyurethane slurry is coated on by the filter screen filtration of 70 mesh of wet polyurethane layer slurry after deaeration
In base fabric, wet polyurethane layer is made.
The production of back side dry method layer of polyurethane:
A: the polyurethane resin C for being 2400cps/25 DEG C with viscosity carries out a scraper processing in textured release paper, so
150-180 DEG C of baking oven is put into afterwards to be dried；
B: after taking out release paper in baking oven, the polyurethane resin D that one layer of viscosity is 2400cps/25 DEG C is coated, coating thickness is
Then 0.12mm passes through 150-180 DEG C of baking oven secondary drying；
C: after taking out step b treated release paper, then the polyurethane tree that one layer of viscosity is 2800cps/25 DEG C is coated on it
Rouge E, coating thickness 0.15mm, by 100-120 DEG C of baking oven be dried to it is half-dried after；
D: being bonded after the release paper in step c is taken out with the bass back side, removes, and dry method layer of polyurethane is made.
It is made in 100 two-sided leather by the above process, randomly selects 10, tested with TABER abrasion wear test machine, emery wheel type
Number: CS-10, weight bearing: 750g carries out wearability experiment to two-sided leather, detects two-sided leather and whether can reach 5000 turns and does not break, real
After testing, 10 two-sided leather are observed, it is found that 9 surfaces are intact, 1 surface mild wear, 0 is seriously worn, qualified
Rate is 90%, and then two-sided leather is sealed in cloche, with the concentration of formaldehyde in methylene oxide detecting instrument detection cloche, detection knot
Fruit is qualified.
Embodiment 3
A kind of two-sided leather of Environment-friendlywear-resistant wear-resistant scratch resistance, it is characterised in that: include:
Base cloth layer is coated on the positive wet polyurethane layer of base cloth layer, coated on the dry method layer of polyurethane on wet process layer, high solid print
It brushes in the flower-pattern layer in dry layer, version is applied to the surface-treated layer in printing layer, the dry method layer of polyurethane coated on the base fabric back side.
The production of wet polyurethane layer:
A:60 parts of dimethylformamides are put into container, add 0.5 portion of anionic surfactant, 0.5 part of nonionic table
Face activating agent, 0.1 aqueous color paste add 5 parts of light calciums, and 10 parts of synthetic fibers powder, 10 parts of sapwood fiber powder, stirring is
It is even；
B: adding 25 parts of polyurethane resin A and 20 parts of polyurethane resin B into the container of step a, and being made into viscosity is
8000-10000cps/25 DEG C of wet polyurethane layer slurry;
C: the wet polyurethane layer slurry that step b is obtained is put into deaeration in vacuum machine；
D: then wet polyurethane slurry is coated on by the filter screen filtration of 70 mesh of wet polyurethane layer slurry after deaeration
In base fabric, wet polyurethane layer is made.
The production of back side dry method layer of polyurethane:
A: the polyurethane resin C for being 2400cps/25 DEG C with viscosity carries out a scraper processing in textured release paper, so
150-180 DEG C of baking oven is put into afterwards to be dried；
B: after taking out release paper in baking oven, the polyurethane resin D that one layer of viscosity is 2400cps/25 DEG C is coated, coating thickness is
Then 0.12mm passes through 150-180 DEG C of baking oven secondary drying；
C: after taking out step b treated release paper, then the polyurethane tree that one layer of viscosity is 2800cps/25 DEG C is coated on it
Rouge E, coating thickness 0.15mm, by 100-120 DEG C of baking oven be dried to it is half-dried after；
D: being bonded after the release paper in step c is taken out with the bass back side, removes, and dry method layer of polyurethane is made.
It is made in 100 two-sided leather by the above process, randomly selects 10, tested with TABER abrasion wear test machine, emery wheel type
Number: CS-10, weight bearing: 750g carries out wearability experiment to two-sided leather, detects two-sided leather and whether can reach 5000 turns and does not break, real
After testing, 10 two-sided leather are observed, it is found that 8 surfaces are intact, 2 surface mild wears, 0 is seriously worn, qualified
Rate is 80%, and then two-sided leather is sealed in cloche, with the concentration of formaldehyde in methylene oxide detecting instrument detection cloche, detection knot
Fruit is qualified.
Embodiment 1, embodiment 2 are different with the raw material weight of the wet polyurethane layer of embodiment 3, method and step in addition to this
It is all the same.
Control group: existing two-sided leather in the market.
10 identical two-sided leather are arbitrarily bought on the market, are tested with TABER abrasion wear test machine, emery wheel model: CS-
10, weight bearing: 750g carries out wearability experiment to two-sided leather, detects two-sided leather and whether can reach 5000 turns and do not break, experiment terminates
Afterwards, 10 two-sided leather are observed, it is found that 3 surfaces are intact, 2 surface mild wears, 5 are seriously worn, and qualification rate is
30%, then two-sided leather is sealed in cloche, with the concentration of formaldehyde in methylene oxide detecting instrument detection cloche, testing result is
Content of formaldehyde is exceeded.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
For personnel it should be appreciated that the present invention is not limited to the above embodiments, described in the above embodiment and specification is only the present invention
Preference, be not intended to limit the invention, without departing from the spirit and scope of the present invention, the present invention also has various
Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by institute
Attached claims and its equivalent thereof.
Claims (10)
1. a kind of two-sided leather of Environment-friendlywear-resistant wear-resistant scratch resistance, it is characterised in that: include:
Base cloth layer is coated on the positive wet polyurethane layer of base cloth layer, coated on the dry method layer of polyurethane on wet process layer, high solid print
It brushes in the flower-pattern layer in dry layer, version is applied to the surface-treated layer in printing layer, the dry method layer of polyurethane coated on the base fabric back side.
2. a kind of two-sided leather of Environment-friendlywear-resistant wear-resistant scratch resistance is it is characterized by: the base cloth layer is the micro- of thickness 0.8mm as described in right 1
Felt, base fabric back side cloth hair are smooth.
3. a kind of two-sided leather of Environment-friendlywear-resistant wear-resistant scratch resistance according to claim 1, it is characterised in that:
The production of wet polyurethane layer:
A:40-60 parts of dimethylformamides are put into container, add 0.2-0.5 portions of anionic surfactants, and 0.2-0.5 parts
Nonionic surfactant, the aqueous color paste of 0.01-0.1 add 1-5 parts of light calciums, and 5-10 parts of synthetic fibers powder, 5-10 parts white
Wood fiber powder stirs evenly；
B: 15-25 parts of A and 15-20 parts of polyurethane resin of polyurethane resin B is added into the container of step a, is made into viscous
The wet polyurethane layer slurry that degree is 8000-10000cps/25 DEG C；
C: the wet polyurethane layer slurry that step b is obtained is put into deaeration in vacuum machine；
D: then the filter screen filtration of the wet polyurethane layer slurry 60-100 mesh after deaeration applies wet polyurethane slurry
It is overlying in base fabric, wet polyurethane layer is made.
4. a kind of two-sided leather of Environment-friendlywear-resistant wear-resistant scratch resistance according to claim 1, it is characterised in that:
The production of dry method layer of polyurethane:
A: the polyurethane resin C for being 2400cps/25 DEG C with viscosity carries out a scraper processing in textured release paper, so
150-180 DEG C of baking oven is put into afterwards to be dried；
B: after taking out release paper in baking oven, the polyurethane resin D that one layer of viscosity is 2400cps/25 DEG C is coated, coating thickness is
Then 0.12mm passes through 150-180 DEG C of baking oven secondary drying；
C: after taking out step b treated release paper, then the polyurethane tree that one layer of viscosity is 2800cps/25 DEG C is coated on it
Rouge E, coating thickness 0.15mm, by 100-120 DEG C of baking oven be dried to it is half-dried after；
D: being bonded after the release paper in step c is taken out with the bass back side, removes, and dry method layer of polyurethane is made.
5. as described in right 3, a kind of two-sided leather of Environment-friendlywear-resistant wear-resistant scratch resistance, which is characterized in that the polyurethane resin A viscosity is 18-
300000 cps/25 DEG C, solid content 30.0 ± 1.0%, 100% modulus is 2.0-3.0Mpa, and appearance is colourless to weak yellow liquid.
6. as described in right 3, a kind of two-sided leather of Environment-friendlywear-resistant wear-resistant scratch resistance, which is characterized in that the polyurethane resin B viscosity is 16-
260000 cps/25 DEG C, solid content is 30.0 ± 1.0%, and appearance is colourless to weak yellow liquid.
7. as described in right 3, a kind of two-sided leather of Environment-friendlywear-resistant wear-resistant scratch resistance, which is characterized in that the coating of the wet polyurethane coating
With a thickness of 0.65-0.75cm.
8. as described in right 4, a kind of two-sided leather of Environment-friendlywear-resistant wear-resistant scratch resistance, which is characterized in that the polyurethane resin C be in it is soft dry
Method surface layer resin adds mass fraction to be that 80 dimethylformamide dilutes.
9. as described in right 4, a kind of two-sided leather of Environment-friendlywear-resistant wear-resistant scratch resistance, which is characterized in that the polyurethane resin D be in it is soft dry
Method surface layer resin adds the dimethylformamide that mass fraction is 80 to dilute, then adds 3-10 parts of toner and be made after mixing evenly.
10. as described in right 4, a kind of two-sided leather of Environment-friendlywear-resistant wear-resistant scratch resistance, which is characterized in that the polyurethane resin E is ultra-soft matter
The common dry method tie layer resins of one liquid type, the dimethylformamide for being 40-60 parts with mass fraction dilute.
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Application publication date: 20190122 |