CN107227625A - A kind of thin folding line low resilience superfine fiber chemical leather and preparation method thereof - Google Patents
A kind of thin folding line low resilience superfine fiber chemical leather and preparation method thereof Download PDFInfo
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- CN107227625A CN107227625A CN201710601908.1A CN201710601908A CN107227625A CN 107227625 A CN107227625 A CN 107227625A CN 201710601908 A CN201710601908 A CN 201710601908A CN 107227625 A CN107227625 A CN 107227625A
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- 239000000835 fiber Substances 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- 239000010985 leather Substances 0.000 title claims abstract description 27
- 239000000126 substance Substances 0.000 title claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 37
- 239000002649 leather substitute Substances 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000000047 product Substances 0.000 claims abstract description 19
- 238000001035 drying Methods 0.000 claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 14
- 238000000576 coating method Methods 0.000 claims abstract description 12
- 239000011248 coating agent Substances 0.000 claims abstract description 11
- 239000011265 semifinished product Substances 0.000 claims abstract description 11
- 238000010030 laminating Methods 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 238000007689 inspection Methods 0.000 claims abstract description 4
- 238000004804 winding Methods 0.000 claims abstract description 4
- 239000011247 coating layer Substances 0.000 claims description 79
- 239000002002 slurry Substances 0.000 claims description 61
- 229920005989 resin Polymers 0.000 claims description 36
- 239000011347 resin Substances 0.000 claims description 35
- 230000007062 hydrolysis Effects 0.000 claims description 19
- 238000006460 hydrolysis reaction Methods 0.000 claims description 19
- 239000010410 layer Substances 0.000 claims description 18
- 239000000843 powder Substances 0.000 claims description 14
- 238000010422 painting Methods 0.000 claims description 13
- 239000013530 defoamer Substances 0.000 claims description 12
- 239000004744 fabric Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 9
- 238000004040 coloring Methods 0.000 claims description 7
- 239000002270 dispersing agent Substances 0.000 claims description 7
- 239000006260 foam Substances 0.000 claims description 7
- 239000002023 wood Substances 0.000 claims description 7
- 229920003002 synthetic resin Polymers 0.000 claims description 6
- 206010053615 Thermal burn Diseases 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- -1 alicyclic diamine Chemical class 0.000 claims description 3
- 238000004043 dyeing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000003086 colorant Substances 0.000 claims description 2
- 229920002521 macromolecule Polymers 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 4
- 239000002585 base Substances 0.000 description 23
- 230000015572 biosynthetic process Effects 0.000 description 5
- 230000005764 inhibitory process Effects 0.000 description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 229920002292 Nylon 6 Polymers 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 206010061592 cardiac fibrillation Diseases 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002600 fibrillogenic effect Effects 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 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
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0004—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using ultra-fine two-component fibres, e.g. island/sea, or ultra-fine one component fibres (< 1 denier)
-
- 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
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/004—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using flocked webs or pile fabrics upon which a resin is applied; Teasing, raising web before resin application
-
- 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
- D06N3/0086—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
- D06N2209/10—Properties of the materials having mechanical properties
- D06N2209/103—Resistant to mechanical forces, e.g. shock, impact, puncture, flexion, shear, compression, tear
-
- 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
- D06N2209/14—Properties of the materials having chemical properties
- D06N2209/143—Inert, i.e. inert to chemical degradation, corrosion resistant
-
- 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
-
- 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
- D06N2209/1635—Elasticity
-
- 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
- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
- D06N2209/1664—Releasability
-
- 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
- D06N2213/02—All layers being of the same kind of material, e.g. all layers being of polyolefins, all layers being of polyesters
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
The invention discloses a kind of thin folding line low resilience superfine fiber chemical leather and preparation method thereof, the preparation method comprises the following steps：1）Pretreatment of base material, to superfine fibre base material carry out rinsing removal of impurities, and extruded, dried, fall rub, pressing processing, to substrate backside carry out plucking, semi-finished product bass examine；2）Dry method veneer, the coating sizing-agent in release liners, then semi-moist laminating is through step 1）The semi-finished product bass obtained after processing, drying removes release liners, and winding, middle product examine is tested；3）To step 2）Obtained middle product are surface-treated or rubbed line processing, product inspection.The preparation method of the present invention is simple, the feel that the operation such as removal of impurities effectively improves finished product is carried out before veneer to base material, coating paste composition used is simple, and by adjusting the temperature in whole preparation process, speed, synthetic leather made from this method has preferable folding resistance, low resilience effect.
Description
Technical field
The present invention relates to technical field of synthetic leather, and in particular to a kind of thin folding line low resilience superfine fiber chemical leather and its system
Preparation Method.
Background technology
Natural leather produces commodity and industrial goods due to being widely used in excellent natural characteristic by people, but with
The growth of world population, the mankind are doubled to the demand of leather, and a limited number of natural leathers can not meet this need of people already
Ask.To solve this contradiction, scientists begin one's study develop artificial leather, synthetic leather decades ago, to make up natural skin
The deficiency of leather.By taking synthetic leather as an example, it is widely used in shoe-making industry, and synthetic leather has excellent physical compared with corium
Energy and higher cost performance, and originate unrestricted so as to be widely used.Traditional synthetic leather is because itself is made
Make technique and material is limited, in use after repeatedly bending, the surface of synthetic leather can form folding line, Jin Er great
Influence greatly attractive in appearance.
The folding quality of synthetic leather is carried out in order to improve in the problem of conventional synthesis leather is repeatedly bent to form folding line, industry
Many researchs.The improved method of folding quality to synthetic leather is mainly in dry method TPU film coating process at present, but the technique meeting
Increase the hardness of synthetic leather, reduce the flexibility and comfort property of synthetic leather, in addition because pasting the increase of TPU membrane process on synthetic leather
And increase cost.In order to solve the above-mentioned technical problem, application number 2015101115191（A kind of producer without folding line synthetic leather
Method）In propose from base fabric fabric, adhesive linkage and the patterned layer of synthetic leather while being improved.Using nano imvite pairing
Finished leather scrim material carries out intercalation modifying, improves the modulus and rebound performance of synthetic leather base cloth fabric；Using low viscosity thermoplastic
Property polyurethane blends as the adhesive linkage of synthetic leather, improve the resilience and modulus of synthetic leather, there is synthetic leather more preferable
Folding quality；Using high solid content polyurethane as synthetic leather patterned layer, reduce because solvent evaporates the hole in surface layer formation,
Synthetic leather surface after bending is set to be not easily formed folding line.Application number 201610048795.2（A kind of low resilience is anti-tortuous to be surpassed
Fibre-polyurethane interior leather for automobiles and preparation method thereof）Propose addition nano-sized magnesium hydroxide, rutile titanium stock white etc. it is alkaline-resisting into
The synthetic leather base cloth that polyamide -6, polyester mixed fiber are made distribution conjunction aqueous polyurethane carries out dipping for the first time and is modified, and makes
Nano-particle is uniformly covered in the surface of base fabric and gap, forms good fire-retardant, sun-proof result；No longer use afterwards
Toluene but fibrillation is carried out to modified base fabric using sodium hydroxide, will not be in product while the surface of many empty warps is formed
In cause organic solvent residual, it is friendly to human body and Environmental security.But the stripping of product made from above two production method
The demand of some users can not be still met from intensity.For this, we are badly in need of providing a kind of new solution improving synthetic leather
Peel strength.
The content of the invention
The purpose of the present invention overcomes the deficiencies in the prior art, and there is provided a kind of thin folding line low resilience superfine fiber chemical leather
Preparation method, using the synthetic leather obtained by the preparation method, not only with slow with the thin folding line of natural leather identical, resilience
Characteristic, while the synthetic leather also has the characteristics such as high tear, high stripping, color inhibition, hydrolysis.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：A kind of thin folding line low resilience superfine fiber chemical leather
Preparation method, comprise the following steps：
1）Pretreatment of base material, the interior progress rinsing 60 of overflow machine or overflow dyeing machine that superfine fibre base material is placed in 70 ~ 80 DEG C of water temperatures ~
90min, removes the impurity of superfine fibre substrate surface, then the superfine fibre base material is extruded, dried, is fallen and is rubbed, scalds
Flat processing, and plucking is carried out to the back side of the superfine fibre base material, semi-finished product bass is examined；
2）Dry method veneer, the coating sizing-agent in release liners, then semi-moist laminating is through step 1）The semi-finished product bass obtained after processing,
Drying, removes release liners, and winding, middle product examine is tested, wherein, the slurry being coated with release liners is applied successively including through-thickness
A coating layer, two coating layers, three coating layers of the cloth in the release liners；
3）To step 2）Obtained middle product are surface-treated or rubbed line processing, product inspection；
Wherein, step 2）Described in the slurry that is used of a coating layer include the component of following mass fraction：Without xanthochromia hydrolysis
100 parts of resin, DMF45 ~ 55 part, MEK15 ~ 25 part, 8 ~ 12 parts of colorant；
The slurry that two coating layer is used includes the component of following mass fraction：Without 100 parts of xanthochromia hydrolysis resin, DMF3
~ 8 parts, 1 ~ 2 part of levelling agent, 0.1 ~ 0.5 part of defoamer, 0.8 ~ 1.2 part of dispersant DA, 0.4 ~ 0.8 part of foam powder, wood powder 8 ~
12 parts, 5 ~ 5.5 parts of bridging agent；
The slurry that three coating layer is used includes the component of following mass fraction：Without 100 parts of xanthochromia hydrolysis resin,
DMF25 ~ 35 part, MEK8 ~ 12 part, 0.1 ~ 0.5 part of levelling agent, 6 ~ 10 parts of color chips.
Preferably, step 2）In, the levelling agent employed in two described coating layer slurries and three coating pastes is to have
Machine silicon levelling agent.
Preferably, step 2）In, the detailed process of dry method veneer is as follows：
21）The slurry of a coating layer is prepared on the first painting platform, the release liners are then coated directly onto using direct method
On, form a coating layer through 5 meters of long oven for drying, wherein, oven temperature be 120 DEG C ~ 130 DEG C, speed be 5 ~ 6 meters/
Minute；
22）The slurry of two coating layer is prepared on the second painting platform, a coating layer is then coated on away from described release
Paper side, two coating layer is formed through 12 meters of long oven for drying, wherein, oven temperature is 135 DEG C ~ 145 DEG C, and speed is 5 ~ 6
M/min；
23）The slurry of three coating layer is prepared on the 3rd painting platform, two coating layer is then coated on away from a painting
Coated side, three coating layer is formed through 18 meters of long oven for drying, wherein, oven temperature be 125 DEG C ~ 135 DEG C, speed be 5 ~
6 ms/min；
24）By step 1）The obtained semi-finished product bass is semi-moist with deviating from two coating layers side progress on three coating layer
Laminating, wherein, veneer scald roll temperature be 170 DEG C, laminate pressure is 4kg, and after through 25 meters of long oven for drying, wherein, baking oven
Temperature is 125 DEG C ~ 135 DEG C, and speed is 5 ~ 6 ms/min；
25）The release liners are peeled off, wound, middle product examine is tested.
Preferably, the step 2）In, it is purchased from river without xanthochromia hydrolysis resin employed in the coating layer slurry
The model JF-HSY-SK50 resins of Su Hua peaks synthetic resin Co., Ltd production；Employed in the two coating layers slurry
The model 9510A resins that Jiangsu Hua Feng synthetic resin Co., Ltd produces are purchased from without xanthochromia hydrolysis resin；Described three apply
Employed in layer slurry the model that Jiangsu Hua Feng synthetic resin Co., Ltd produces is purchased from without xanthochromia hydrolysis resin
AD45P2 resins.
Preferably, the step 2）In, the defoamer employed in the two coating layers slurry is by Suzhou Bao Ze high scores
The defoamer of sub- Materials Co., Ltd's production.
Preferably, the step 2）In, the bridging agent employed in the two coating layers slurry is alicyclic diamine class frame
Bridge agent.
Preferably, the step 2）In, the slurry that a coating layer is used is by 100 parts of nothings according to the mass fraction
Xanthochromia hydrolysis resin, 50 parts of DMF, 20 parts of MEK, 10 parts of coloring material for mixing are formed, and the viscosity of its slurry is 4000cps；Described two
The slurry that coating layer is used, according to the mass fraction, be by 100 parts without xanthochromia hydrolysis resin, 5 parts of DMF, 1.5 parts of levelling agents,
0.3 part of defoamer, 1 part of dispersant, 0.6 point of foam powder, 10 parts of wood powders, 5.2 parts of bridging agents are mixed, the viscosity of its slurry
For 6000cps；The slurry that three coating layer is used, is without xanthochromia hydrolysis resin, 30 by 100 parts according to the mass fraction
Part DMF, 10 parts of MEK, 0.1 ~ 0.3 part of levelling agent, 8 parts of coloring material for mixing are formed, and the viscosity of its slurry is 6000cps.
Present invention also offers a kind of thin folding line low resilience superfine fiber chemical leather, its prepared by above-mentioned preparation method and
Into the synthetic leather includes superfine fibre substrate layer and is transferred to the positive painting of the superfine fibre substrate layer by release liners
The bed of material, the dope layer is coated on positive three coating layer of the superfine fibre substrate layer, two paintings successively including through-thickness
Coating, a coating layer.
Due to the utilization of above-mentioned technical proposal, the present invention has following advantages compared with prior art：The preparation of the present invention
Method, by carrying out flexible pre-treatment to superfine fibre base material, so that when base material fits coating, it can be ensured that base material front is close
Degree is uniform, flatness is good, coating rapid osmotic so that the synthetic leather obtained by preparation is more close with natural leather in feel, simultaneously
During dry method veneer, paste composition that three coatings are used is simple, preparation technology is simple, made using the preparation method
The synthetic leather obtained, will not destroy the structure of superfine fibre, closer with natural leather in feel and light sensation, softness is than day
So leather is more excellent, while the peel strength of obtained synthetic leather is strong, warp-wise is up to 145 N/3cm, and broadwise is up to 142 N/3cm；
Tearing strength：Warp-wise is up to 136N, and broadwise is up to 126N；Tensile strength：Warp-wise is up to 509 N/2.5cm, and broadwise is up to 764N/
2.5cm；Elongation：Warp-wise is up to 115%, and broadwise is up to 102%；Alkali resistance：The stripping after 24h is soaked in 10% Strong oxdiative sodium
Intensity is maintained at more than 80%；Color inhibition grade ＞ 4.5.
Embodiment
Technical scheme is further elaborated with reference to specific embodiment.
Front discussed below, the back side are so that by synthetic leather, after finished product is made, the one side observed by sight is just
Face, sight not it is observed that one side be the back side.
In following examples, superfine fibre base material is purchased from Shanghai Huafon Micreofibre Technology Co., Ltd.； JF-HSY-
SK50 resins, 9510A resins, AD45P2 resins are purchased from Jiangsu Hua Feng synthetic resin Co., Ltd；Defoamer is purchased from Suzhou Bao Ze
High polymer material Co., Ltd；The levelling agent of use is organosilicon levelling agent, and the bridging agent used is alicyclic diamine class frame
Bridge agent.
Embodiment 1
A kind of thin folding line low resilience synthetic leather is provided in this example, the synthetic leather includes superfine fibre substrate layer and by release
Paper is transferred to the positive dope layer of superfine fibre substrate layer, and the dope layer is coated on the ultra-fine fibre successively including through-thickness
Tie up positive three coating layer of substrate layer, two coating layers, a coating layer.
Specifically, the preparation method of the synthetic leather is as follows, including following steps：
1）Pretreatment of base material, the interior progress rinsing 60 of overflow machine or overflow dyeing machine that superfine fibre base material is placed in 70 ~ 80 DEG C of water temperatures ~
90min, removes the impurity of superfine fibre substrate surface, then the superfine fibre base material is extruded, dried, is fallen and is rubbed, plates
Processing, and plucking is carried out to the back side of base material, semi-finished product bass is examined, and here, passes through the pre-treatment to base material so that base material table
Face is finer and smoother, the later stage fit dope layer when, laminating it is more close, and to substrate backside progress plucking, more connect in feel
Nearly natural leather；
2）Dry method veneer, the coating sizing-agent in release liners, then semi-moist laminating is through step 1）The semi-finished product bass obtained after processing,
Drying, removes release liners, and winding, middle product examine is tested, wherein, the slurry being coated with release liners is applied successively including through-thickness
A coating layer, two coating layers, three coating layers of the cloth in release liners, concrete operations are as follows：
21）The slurry of a coating layer is prepared on the first painting platform, is then coated directly onto using direct method in release liners, through 5 meters
Long oven for drying one coating layer of formation, wherein, oven temperature is 120 DEG C ~ 130 DEG C, and speed is 5 ~ 6 ms/min, one is applied here
The slurry of coating, according to the mass fraction, by 100 parts of JF-HSY-SK50 resins, 45 parts of DMF, 20 parts of MEK, 8 parts of coloring material for mixing and
Into the viscosity of its slurry is 4000cps；
22）The slurry of two coating layers is prepared on the second painting platform, a coating layer is then coated on away from the side side of release liners
On, through oven for drying two coating layers of formation 12 meters long, wherein, oven temperature is 135 DEG C, and speed is 5 ~ 6 ms/min, here
The slurry of two coating layers, as mass fraction, by 100 parts of 9510A resins, 3 parts of DMF, 2 parts of levelling agent L50,0.2 part of defoamer,
0.8 part of dispersant DA, 0.4 part of foam powder F150,12 parts of wood powders, 5 parts of bridging agents, appropriate mill bases are mixed, its slurry
Viscosity is 6000cps；
23）The slurry of three coating layers is prepared on the 3rd painting platform, two coating layers are then coated on away from a coating layer side, through 18 meters
Long oven for drying three coating layers of formation, wherein, oven temperature is 130 DEG C, and speed is 5 ~ 6 ms/min, here three coating layers
Slurry, according to the mass fraction, mixed by 100 parts of AD45P2 resins, 25 parts of DMF, 8 parts of MEK, 0.5 part of levelling agent, 8 parts of color chips
Form, the viscosity of its slurry is 6000cps；
24）By step 1）Obtained semi-finished product bass with three coating layers away from two coating layer sides carry out it is semi-moist fit, wherein, paste
Face scald roll temperature be 170 DEG C, laminate pressure is 4kg, and after through 25 meters of long oven for drying, wherein, oven temperature be 125 DEG C ~
135 DEG C, speed is 5 ~ 6 ms/min；
25）Release liners are peeled off, wound, middle product examine is tested；
3）To step 2）Obtained middle product are surface-treated or rubbed line processing, product inspection.
Physical property using the synthetic leather obtained by the preparation method in this example is detected, data below is obtained：
Peel strength：Warp-wise reaches 112N/3cm, and broadwise reaches 98N/3cm；
Tearing strength：Warp-wise reaches 110N, and broadwise reaches 95N；
Tensile strength：Warp-wise reaches 420N/2.5cm, and broadwise reaches 670N/2.5cm；
Elongation：Warp-wise is up to 120%, and broadwise is up to 82%；
Alkali resistance：The peel strength after 24h is soaked in 10% Strong oxdiative sodium and is maintained at more than 80%；
Color inhibition grade ＞ 4.5.
Embodiment 2
This example discloses a kind of thin folding line low resilience synthetic leather, and it in place of the difference of embodiment 1 with being：One coating layer is used
Slurry, according to the mass fraction, formed by 100 parts of JF-HSY-SK50 resins, 50 parts of DMF, 20 parts of MEK, 10 parts of coloring material for mixing,
And its slurry viscosity is 4200cps；
The slurry that two coating layers are used, according to the mass fraction, by 100 parts of 9510A resins, 5 parts of DMF, 1.5 parts of levelling agent L50,
0.3 part of defoamer, 1 part of dispersant DA, 0.6 part of foam powder F150,10 parts of wood powders, 5.2 parts of bridging agents, the mixing of appropriate mill base and
Into, and its slurry viscosity is 5800cps；
The slurry that three coating layers are used, according to the mass fraction, by 100 parts of AD45P2 resins, 30 parts of DMF, 10 parts of MEK, 0.4 part
Levelling agent, 8 parts of color chips are mixed, and its slurry viscosity is 6100cps.
Physical property using the upper leather obtained by the preparation method in this example is detected, data below is obtained：
Peel strength：Warp-wise is up to 145 N/3cm, and broadwise is up to 142 N/3cm；
Tearing strength：Warp-wise reaches 136N, and broadwise reaches 126N；
Tensile strength：Warp-wise reaches 764N/2.5cm up to 509 N/2.5cm, broadwise；
Elongation：Warp-wise is up to 115%, and broadwise is up to 102%；
Alkali resistance：The peel strength after 24h is soaked in 10% Strong oxdiative sodium and is maintained at more than 80%；
Color inhibition grade ＞ 4.5.
Embodiment 3
This example discloses a kind of thin folding line low resilience synthetic leather, and it in place of the difference of embodiment 1 with being：One coating layer is used
Slurry, according to the mass fraction, formed by 100 parts of JF-HSY-SK50 resins, 55 parts of DMF, 15 parts of MEK, 12 parts of coloring material for mixing,
And its slurry viscosity is 4200cps；
The slurry that two coating layers are used, according to the mass fraction, by 100 parts of 9510A resins, 8 parts of DMF, 1 part of levelling agent L50,
0.5 part of defoamer, 1.2 parts of dispersant DA, 0.8 part of foam powder F150,8 parts of wood powders, 5.5 parts of bridging agents, the mixing of appropriate mill base
Form, and its slurry viscosity is 5800cps；
The slurry that three coating layers are used, according to the mass fraction, by 100 parts of AD45P2 resins, 35 parts of DMF, 12 parts of MEK, 0.1 part
Levelling agent, 10 parts of color chips are mixed, and its slurry viscosity is 6100cps.
Physical property using the upper leather obtained by the preparation method in this example is detected, data below is obtained：
Peel strength：Warp-wise is up to 132 N/3cm, and broadwise is up to 128 N/3cm；
Tearing strength：Warp-wise reaches 120N, and broadwise reaches 118N；
Tensile strength：Warp-wise reaches 483N/2.5cm, and broadwise reaches 704N/2.5cm；
Elongation：Warp-wise is up to 118%, and broadwise is up to 93%；
Alkali resistance：The peel strength after 24h is soaked in 10% Strong oxdiative sodium and is maintained at more than 80%；
Color inhibition grade ＞ 4.5.
It is obtained it will be seen that by carrying out advance handling flexibly to superfine fibre base material from embodiment 1,2,3
Upper leather in feel with natural leather closest to even it is more excellent than natural leather, the present invention in slurry used composition letter
Single, obtained upper leather green non-pollution has accomplished zero-emission, meanwhile, by adjusting DMF, MEK proportioning, substantially increase
The physical property of upper leather.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent change or modification that Spirit Essence is made, should all be included within the scope of the present invention.
Claims (8)
1. a kind of preparation method of thin folding line low resilience superfine fiber chemical leather, it is characterised in that comprise the following steps：
1）Pretreatment of base material, the interior progress rinsing 60 of overflow machine or overflow dyeing machine that superfine fibre base material is placed in 70 ~ 80 DEG C of water temperatures ~
90min, removes the impurity of superfine fibre substrate surface, then the superfine fibre base material is extruded, dried, is fallen and is rubbed, scalds
Flat processing, and plucking is carried out to the back side of the superfine fibre base material, semi-finished product bass is examined；
2）Dry method veneer, the coating sizing-agent in release liners, then semi-moist laminating is through step 1）The semi-finished product bass obtained after processing,
Drying, removes release liners, and winding, middle product examine is tested, wherein, the slurry being coated with release liners is applied successively including through-thickness
A coating layer, two coating layers, three coating layers of the cloth in the release liners；
3）To step 2）Obtained middle product are surface-treated or rubbed line processing, product inspection；
Wherein, step 2）Described in the slurry that is used of a coating layer include the component of following mass fraction：Without xanthochromia hydrolysis
100 parts of resin, DMF45 ~ 55 part, MEK15 ~ 25 part, 8 ~ 12 parts of colorant；
The slurry that two coating layer is used includes the component of following mass fraction：Without 100 parts of xanthochromia hydrolysis resin, DMF3
~ 8 parts, 1 ~ 2 part of levelling agent, 0.1 ~ 0.5 part of defoamer, 0.8 ~ 1.2 part of dispersant DA, 0.4 ~ 0.8 part of foam powder, wood powder 8 ~
12 parts, 5 ~ 5.5 parts of bridging agent；
The slurry that three coating layer is used includes the component of following mass fraction：Without 100 parts of xanthochromia hydrolysis resin,
DMF25 ~ 35 part, MEK8 ~ 12 part, 0.1 ~ 0.5 part of levelling agent, 6 ~ 10 parts of color chips.
2. preparation method according to claim 1, it is characterised in that step 2）In, two described coating layer slurries and three
Levelling agent employed in coating paste is organosilicon levelling agent.
3. preparation method according to claim 1, it is characterised in that step 2）In, the detailed process of dry method veneer is as follows：
21）The slurry of a coating layer is prepared on the first painting platform, the release liners are then coated directly onto using direct method
On, form a coating layer through 5 meters of long oven for drying, wherein, oven temperature be 120 DEG C ~ 130 DEG C, speed be 5 ~ 6 meters/
Minute；
22）The slurry of two coating layer is prepared on the second painting platform, a coating layer is then coated on away from described release
Paper side, two coating layer is formed through 12 meters of long oven for drying, wherein, oven temperature is 135 DEG C ~ 145 DEG C, and speed is 5 ~ 6
M/min；
23）The slurry of three coating layer is prepared on the 3rd painting platform, two coating layer is then coated on away from a painting
Coated side, three coating layer is formed through 18 meters of long oven for drying, wherein, oven temperature be 125 DEG C ~ 135 DEG C, speed be 5 ~
6 ms/min；
24）By step 1）The obtained semi-finished product bass is semi-moist with deviating from two coating layers side progress on three coating layer
Laminating, wherein, veneer scald roll temperature be 170 DEG C, laminate pressure is 4kg, and after through 25 meters of long oven for drying, wherein, baking oven
Temperature is 125 DEG C ~ 135 DEG C, and speed is 5 ~ 6 ms/min；
25）The release liners are peeled off, wound, middle product examine is tested.
4. preparation method according to claim 1, it is characterised in that the step 2）In, in the coating layer slurry
What is used is purchased from the model JF-HSY-SK50 trees that Jiangsu Hua Feng synthetic resin Co., Ltd produces without xanthochromia hydrolysis resin
Fat；Being produced without xanthochromia hydrolysis resin purchased from Jiangsu Hua Feng synthetic resin Co., Ltd employed in the two coating layers slurry
Model 9510A resins；Being synthesized without xanthochromia hydrolysis resin purchased from Jiangsu Hua Feng employed in the three coating layers slurry
The model AD45P2 resins of resin Co., Ltd production.
5. preparation method according to claim 1, it is characterised in that the step 2）In, in the two coating layers slurry
The defoamer used is the defoamer produced by Suzhou Baoze Macromolecule Materials Co., Ltd..
6. preparation method according to claim 1, it is characterised in that the step 2）In, in the two coating layers slurry
The bridging agent used is alicyclic diamine class bridging agent.
7. preparation method according to claim 1, it is characterised in that the step 2）In, a coating layer is used
Slurry, according to the mass fraction, be by 100 parts without xanthochromia hydrolysis resin, 50 parts of DMF, 20 parts of MEK, 10 parts of coloring material for mixing and
Into the viscosity of its slurry is 4000cps；The slurry that two coating layer is used, is without Huang by 100 parts according to the mass fraction
Become hydrolysis resin, 5 parts of DMF, 1.5 parts of levelling agents, 0.3 part of defoamer, 1 part of dispersant, 0.6 point of foam powder, 10 parts of wood powders,
5.2 parts of bridging agents are mixed, and the viscosity of its slurry is 6000cps；The slurry that three coating layer is used, by mass fraction
Meter, is to be formed by 100 parts without xanthochromia hydrolysis resin, 30 parts of DMF, 10 parts of MEK, 0.1 ~ 0.3 part of levelling agent, 8 parts of coloring material for mixing,
The viscosity of its slurry is 6000cps.
8. a kind of thin folding line low resilience superfine fiber chemical leather, as the preparation side described in any claim in claim 1 to 7
Method is prepared from, it is characterised in that the synthetic leather includes superfine fibre substrate layer and is transferred to by release liners described super
The positive dope layer of fine fibre substrate layer, the dope layer is coated on the superfine fibre substrate layer successively including through-thickness
Positive three coating layer, two coating layers, a coating layer.
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| CN110804876A (en) * | 2019-11-15 | 2020-02-18 | 山东德信皮业有限公司 | Composite microfiber direct coating process |
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