CN108755169A - A kind of preparation method of the aqueous polyurethane clothing leather bass of flexible, breathable - Google Patents
A kind of preparation method of the aqueous polyurethane clothing leather bass of flexible, breathable Download PDFInfo
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- CN108755169A CN108755169A CN201810614116.2A CN201810614116A CN108755169A CN 108755169 A CN108755169 A CN 108755169A CN 201810614116 A CN201810614116 A CN 201810614116A CN 108755169 A CN108755169 A CN 108755169A
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- aqueous polyurethane
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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
- D06N3/142—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 mixture of polyurethanes with other resins in the same layer
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—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
- D06N3/005—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 blowing or swelling agent
-
- 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
- D06N3/12—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
- D06N3/142—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 mixture of polyurethanes with other resins in the same layer
- D06N3/144—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 mixture of polyurethanes with other resins in the same layer with polyurethane and polymerisation products, e.g. acrylics, PVC
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- 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
- D06N2209/12—Permeability or impermeability properties
- D06N2209/121—Permeability to gases, adsorption
- D06N2209/123—Breathable
-
- 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
- D06N2209/12—Permeability or impermeability properties
- D06N2209/126—Permeability to liquids, absorption
-
- 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 a kind of preparation method of the aqueous polyurethane clothing leather bass of flexible, breathable, includes the following steps：PVA aqueous solutions configure, the configuration of waterborne polyurethane foaming slurry, base fabric processing, coating, cohesion, it washes, the step of drying, in the preparation method of the aqueous polyurethane clothing leather bass of flexible, breathable provided by the invention, aqueous polyurethane slurry foam hole and PVA aqueous solutions are transformed into solid in type-approval process by liquid, the abscess obtained after hot water washes PVA again, pass through the foam pattern of physics two-ply foam, uniform foam cell is stablized, assign clothing leather bass excellent breathable moisture permeability, keep its soft, kishke feel is strong, fully meet demand of the synthetic leather market to clothing leather bass.
Description
Technical field
The invention belongs to waterborne polyurethane synthetic leather technical fields, more particularly to a kind of aqueous polyurethane of flexible, breathable
The preparation method of clothing leather bass.
Background technology
Synthetic leather has been applied to the every field in people's life at present, numerous in variety.Clothing leather is a kind of synthetic leather production
Product use solvent borne polyurethane to manufacture, and are set the DMF (dimethylformamide) in solvent borne polyurethane with water with wet processing
It changes so that coating has continuous pore, to reach moisture-penetrable ventilated property.With light, wear-resisting, heat resistance, toughness, cold resistance
Feature good, tensile strength is high.But a large amount of DMF, solvent borne auxiliary agent and mill base have been used in coating slurry, not only solvent is residual
It stays and endangers consumer health, and have serious destruction to ecological environment.Waterborne polyurethane resin be using water as decentralized medium,
It is environment-protecting and non-poisonous, it is the substitute of solvent type polyurethane resin.And the special process of the double-deck abscess can allow aqueous polyurethane clothing leather
Bass more air-moisture-permeable embodies the effect of aqueous polyurethane clothing leather bass meeting " breathing ".In recent years, aqueous polyurethane closed
The preparation research of finished leather has made great progress, but the research on clothing leather bass is especially wanted also in conventional fabrication processes
It is also waited in terms of reaching soft, moisture-penetrable ventilated, corium feel and ecological, environmental protective in further research and development.
Invention content
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of aqueous poly- ammonia of flexible, breathable
The method of ester clothing leather bass, for solve the conventional fabrication processes on clothing leather bass in the prior art can not achieve it is soft,
Moisture-penetrable ventilated, corium feel and ecological, environmental protective problem, the aqueous polyurethane clothing leather bass of flexible, breathable proposed by the present invention
Method, be not add any organic solvent using waterborne polyurethane resin as raw material, wet processing makes the aqueous poly- ammonia of first layer
Ester coating uniform foam cell is stablized, in addition the second layer abscess obtained after hot water cleaning PVA, the double-deck abscess make clothing leather bass knot
Structure carefully closely has moisture absorbing and sweat releasing and fine air permeability.
In order to achieve the above objects and other related objects, the present invention provides a kind of aqueous polyurethane clothing leather of flexible, breathable
The method of bass, includes the following steps：
(1) PVA aqueous solutions configure：Weigh 15~20 parts of PVA solids, 100 parts of tap water, by PVA solids dissolve to get
PVA aqueous solutions；
(2) waterborne polyurethane foaming slurry is configured：The foamed slurry is made of following raw material and its parts by weight：Solid content
For 35%~45% 300~320 parts of anion aqueous polyurethane resin, 2.5~3 parts of powder wetting agent, PVA aqueous solutions 30~
45 parts, 25~30 parts of lignocellulosic, 4.5~6 parts of foaming agent, 4.5~6 parts of foam stabilizer, 1.5~2 parts of crosslinking agent, aqueous thickening
0.5~2 part of agent；
(3) base fabric is handled：Adhesive fabric is first passed through into the processing of pre- consolidated liquid；The pre- consolidated liquid is by following raw material and its weight
Part is constituted：Be demulsified 1~3 part of crosslinking agent, 80~95 parts of tap water；
(4) it coats：The foamed slurry that coating step (2) is configured on processed adhesive fabric；
(5) it agglomerates：The adhesive fabric for coating foamed slurry is condensed by the solidification liquid in coagulating basin, obtains sizing shellfish
This；The solidification liquid is made of following raw material and its parts by weight：Be demulsified 5~15 parts of crosslinking agent, 80~95 parts of tap water；
(6) it washes, dry：Sizing bass is cleaned into extra solidification liquid and PVA by rinsing bowl, is obtained after drying and shaping
Aqueous clothing leather bass；Rinsing bowl includes the hot water storgae and room temperature sink that water temperature is 40~80 °.
40~80 ° of hot water is for cleaning the PVA solids in semidefinite form bass, and normal-temperature water is for wash clean bass
In extra solidification liquid.
Preferably, the powder wetting agent is one kind in ammonium salt class or sodium salt powder wetting agent.
Preferably, the foaming agent is organic-silicon-modified foaming agent, lauryl sodium sulfate composite foamable agent or stearic acid
One kind in salt foaming agent.
Preferably, the foam stabilizer is silicones polyethers type of latex type foam stabilizer.
Preferably, the crosslinking agent is any one in the bright pyridine type of nitrogen and Carbodiimides crosslinking agent or two kinds.
Preferably, the demulsification crosslinking agent is carbonic acid, lactic acid, citric acid, phosphoric acid, calcium chloride, sodium chloride, ferric sulfate, chlorine
Change one or more of iron, aluminium chloride；
Preferably, the PVA is to have environment-friendly type polyvinyl alcohol；The mesh number of the lignocellulosic is 400~1000 mesh.
Preferably, the water-based thickener is association type polyurethane thickener or alkali swelling type acrylic thickener.
Preferably, the water-washing process in the step (4) is continous way water-washing process, and water temperature controls successively is：40~60
DEG C rinsing bowl be 1~4 slot, 70~80 DEG C of rinsing bowl is 5~12 slots, 13~15 slot of normal-temperature water, by the bass after semidefinite form
It is washed by continous way, aqueous clothing leather bass is obtained after then drying sizing again.
Preferably, the waterborne polyurethane foaming slurry, Physical properties of coating film are：In 20~25 DEG C of temperature, humidity 30~
Under 50% test condition, 100% modulus is 1~2MPa, fracture strength >=10MPa, elongation >=300%.
As described above, a kind of method of the aqueous polyurethane clothing leather bass of flexible, breathable of the present invention, has with following
Beneficial effect：Aqueous polyurethane slurry foam hole and PVA aqueous solutions are transformed into solid in type-approval process by liquid, then clear through hot water
The abscess obtained after PVA is washed off, by the foam pattern of physics two-ply foam, uniform foam cell is stablized, and it is excellent to assign clothing leather bass
Good breathable moisture permeability, makes that its is soft, kishke feel is strong, fully meets demand of the synthetic leather market to clothing leather bass.
Specific implementation mode
With reference to specific embodiment, the present invention is further explained, it should be appreciated that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.
Illustrate that embodiments of the present invention, those skilled in the art can be by this specification below by way of specific specific example
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also be based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.
Embodiment 1
A kind of method of the aqueous polyurethane clothing leather bass of flexible, breathable, includes the following steps：
(1) PVA aqueous solutions configure：
15 parts of PVA solids are weighed, 100 parts of tap water dissolves PVA solids to get PVA aqueous solutions；
(2) waterborne polyurethane foaming slurry is configured：
The foamed slurry is made of following raw material and its parts by weight：The KT702F that solid content is 35% is anion aqueous poly-
25 parts of lignocellulosic, the organosilicon of 300 parts of urethane resin, 2.5 parts of A168 powders wetting agent, 30 parts of PVA aqueous solutions, 400 mesh
4.5 parts of 12 foaming agent of Modified K, 208 4.5 parts of silicones polyethers type of latex type foam stabilizers, 1.5 parts of crosslinking agent, water-based thickener 0.5
Part；
(3) pre- consolidated liquid is configured
Pre- consolidated liquid raw material and its parts by weight are constituted：Be demulsified 1 part of crosslinking agent, 80 parts of tap water；
(4) base fabric is handled：
Adhesive fabric is first passed through into the processing of pre- consolidated liquid；
(5) it coats：
The foamed slurry that coating step (2) is configured on processed adhesive fabric；Its Physical properties of coating film is：In temperature 20
DEG C, under the test condition of humidity 30%, 100% modulus is 1MPa, fracture strength >=10MPa, elongation >=300%.
(6) solidification liquid is configured；
Solidification liquid raw material and its parts by weight are constituted：5 parts of the mixture of lactic acid and sodium chloride, the mixing ratio of lactic acid and sodium chloride
Example is 1~1.5：2~4,80 parts of tap water；
(7) it agglomerates：
The adhesive fabric for coating foamed slurry is condensed by the solidification liquid in coagulating basin, obtains sizing bass；
(8) it washes, dry：
Bass after semidefinite form is washed by continous way, 40 DEG C of rinsing bowl is 1~4 slot, 70 DEG C of rinsing bowl be 5~
12
Slot, 13~15 slot of normal-temperature water obtain aqueous clothing leather bass after then drying sizing again.
Embodiment 2
A kind of method of the aqueous polyurethane clothing leather bass of flexible, breathable, includes the following steps：
(1) PVA aqueous solutions configure：
18 parts of PVA solids are weighed, 100 parts of tap water dissolves PVA solids to get PVA aqueous solutions；
(2) waterborne polyurethane foaming slurry is configured：
The foamed slurry is made of following raw material and its parts by weight：The anion aqueous poly- ammonia of KT702F that solid content is 40
28 parts of lignocellulosic, the organic-silicon-modified K12 of ester resin 310,2.8 parts of A168 powders wetting agent, PVA aqueous solutions 40,600 mesh
5 parts of foaming agent, 208 5 parts of silicones polyethers type of latex type foam stabilizers, 1.8 parts of crosslinking agent, 1 part of water-based thickener；
(3) pre- consolidated liquid is configured
Pre- consolidated liquid raw material and its parts by weight are constituted：Be demulsified 2 parts of crosslinking agent, 90 parts of tap water；
(4) base fabric is handled：
Adhesive fabric is first passed through into the processing of pre- consolidated liquid；
(5) it coats：
The foamed slurry that coating step (2) is configured on processed adhesive fabric；Its Physical properties of coating film is：In temperature 20
DEG C, under the test condition of humidity 40%, 100% modulus is 1MPa, fracture strength >=10MPa, elongation >=300%.
(6) solidification liquid is configured；
Solidification liquid raw material and its parts by weight are constituted：5 parts of the mixture of lactic acid and sodium chloride, the mixing ratio of lactic acid and sodium chloride
Example is 1~1.5：2~4,80 parts of tap water；
(7) it agglomerates：
The adhesive fabric for coating foamed slurry is condensed by the solidification liquid in coagulating basin, obtains sizing bass；
(8) it washes, dry：
Bass after semidefinite form is washed by continous way, 50 DEG C of rinsing bowl is 1~4 slot, 75 DEG C of rinsing bowl be 5~
12 slots, 13~15 slot of normal-temperature water obtain aqueous clothing leather bass after then drying sizing again.
Embodiment 3
A kind of method of the aqueous polyurethane clothing leather bass of flexible, breathable, includes the following steps：
(1) PVA aqueous solutions configure：
PVA solids 20 are weighed, 100 parts of tap water dissolves PVA solids to get PVA aqueous solutions；
(2) waterborne polyurethane foaming slurry is configured：
The foamed slurry is made of following raw material and its parts by weight：The KT705 that solid content is 45% is anion aqueous poly-
300 parts of urethane resin, 3 parts of A168 powders wetting agent, PVA aqueous solutions 45,1000 matter celluloses 30, organic-silicon-modified K12 foaming
6 parts of agent, 208 6 parts of silicones polyethers type of latex type foam stabilizers, 2 parts of crosslinking agent, 2 parts of water-based thickener；
(3) pre- consolidated liquid is configured
Pre- consolidated liquid raw material and its parts by weight are constituted：Be demulsified 3 parts of crosslinking agent, tap water 95；
(4) base fabric is handled：
Adhesive fabric is first passed through into the processing of pre- consolidated liquid；
(5) it coats：
The foamed slurry that coating step (2) is configured on processed adhesive fabric；Its Physical properties of coating film is：In temperature 25
DEG C, under the test condition of humidity 50%, 100% modulus is 1MPa, fracture strength >=10MPa, elongation >=300%.
(6) solidification liquid is configured；
Solidification liquid raw material and its parts by weight are constituted：5 parts of the mixture of lactic acid and sodium chloride, the mixing ratio of lactic acid and sodium chloride
Example is 1~1.5：2~4,80 parts of tap water；
(7) it agglomerates：
The adhesive fabric for coating foamed slurry is condensed by the solidification liquid in coagulating basin, obtains sizing bass；
(8) it washes, dry：
Bass after semidefinite form is washed by continous way, 60 DEG C of rinsing bowl is 1~4 slot, 80 DEG C of rinsing bowl be 5~
12 slots, 13~15 slot of normal-temperature water obtain aqueous clothing leather bass after then drying sizing again.
Test result：
The physical mechanical property of the aqueous polyurethane clothing leather bass of embodiment 1-3 is tested, as a result such as 1 institute of table
Show：
The physical mechanical property of 1 aqueous polyurethane clothing leather bass of table carries out test result
It is soft to can be seen that the clothing leather bass product prepared in the present invention from the characterization result in table 1, elasticity is extensive
It answers, kishke feel is strong；Permeability is very excellent, can reach twice of corium or more, gas permeability is up to 20000.0mL/
(cm2h)；Ageing resistance is excellent, and bass is without dusting and other abnormal phenomenon during this；Folding fastness and peel strength can with it is true
It is skin-deep to match in excellence or beauty；Product weather resistance is superior, and room temperature folding reaches 100,000 times without breach, and low temperature (- 15 °) folding 50,000 times is without breach；
No any organic solvent from producing to using, all using aqueous, environmental protective material, environmentally safe, odorlessness, VOC detections
Qualification, is free of harmful substance, and environmental-protecting performance is superior.
The above, only presently preferred embodiments of the present invention, not to the present invention in any form with substantial limitation,
It should be pointed out that for those skilled in the art, under the premise of not departing from the method for the present invention, can also make
Several improvement and supplement, these are improved and supplement also should be regarded as protection scope of the present invention.All those skilled in the art,
Without departing from the spirit and scope of the present invention, when made using disclosed above technology contents it is a little more
Dynamic, modification and the equivalent variations developed, are the equivalent embodiment of the present invention；Meanwhile all substantial technologicals pair according to the present invention
The variation, modification and evolution of any equivalent variations made by above-described embodiment, still fall within the range of technical scheme of the present invention
It is interior.
Claims (10)
1. a kind of preparation method of the aqueous polyurethane clothing leather bass of flexible, breathable, which is characterized in that include the following steps：
(1) PVA aqueous solutions configure：15~20 parts of PVA solids are weighed, 100 parts of tap water dissolves PVA solids to get PVA water
Solution；
(2) waterborne polyurethane foaming slurry is configured：The foamed slurry is made of following raw material and its parts by weight：Solid content is
35%~45% 300~320 parts of anion aqueous polyurethane resin, 2.5~3 parts of powder wetting agent, PVA aqueous solutions 30~45
Part, 25~30 parts of lignocellulosic, 4.5~6 parts of foaming agent, 4.5~6 parts of foam stabilizer, 1.5~2 parts of crosslinking agent, water-based thickener
0.5~2 part；
(3) base fabric is handled：Adhesive fabric is first passed through into the processing of pre- consolidated liquid；The pre- consolidated liquid is by following raw material and its parts by weight structure
At：Be demulsified 1~3 part of crosslinking agent, 80~95 parts of tap water；
(4) it coats：The waterborne polyurethane foaming slurry that coating step (2) is configured on processed adhesive fabric；
(5) it agglomerates：The adhesive fabric for coating waterborne polyurethane foaming slurry is condensed by the solidification liquid in coagulating basin, is obtained
Sizing bass；The solidification liquid is made of following raw material and its parts by weight：Be demulsified 5~15 parts of crosslinking agent, 80~95 parts of tap water；
(6) it washes, dry：Sizing bass is cleaned into extra solidification liquid and PVA by rinsing bowl, is obtained after drying and shaping aqueous
Clothing leather bass；Rinsing bowl includes the hot water storgae and room temperature sink that water temperature is 40~80 °.
2. a kind of preparation method of the aqueous polyurethane clothing leather bass of flexible, breathable according to claim 1, feature
It is：The powder wetting agent is one kind in ammonium salt class or sodium salt powder wetting agent.
3. a kind of method of the aqueous polyurethane clothing leather bass of flexible, breathable according to claim 1, it is characterised in that：
The foaming agent is one in organic-silicon-modified foaming agent, lauryl sodium sulfate composite foamable agent or stearates foaming agent
Kind.
4. a kind of method of the aqueous polyurethane clothing leather bass of flexible, breathable according to claim 1, it is characterised in that：
The foam stabilizer is silicones polyethers type of latex type foam stabilizer.
5. a kind of preparation method of the aqueous polyurethane clothing leather bass of flexible, breathable according to claim 1, feature
It is：The crosslinking agent is any one in the bright pyridine type of nitrogen and Carbodiimides crosslinking agent or two kinds.
6. a kind of method of the aqueous polyurethane clothing leather bass of flexible, breathable according to claim 1, it is characterised in that：
The demulsification crosslinking agent is in carbonic acid, lactic acid, citric acid, phosphoric acid, calcium chloride, sodium chloride, ferric sulfate, iron chloride, aluminium chloride
It is one or more of.
7. a kind of preparation method of the aqueous polyurethane clothing leather bass of flexible, breathable according to claim 1, feature
It is：The PVA is environment-friendly type polyvinyl alcohol；The mesh number of the lignocellulosic is 400~1000 mesh.
8. a kind of preparation method of the aqueous polyurethane clothing leather bass of flexible, breathable according to claim 1, feature
It is：The water-based thickener is association type polyurethane thickener or alkali swelling type acrylic thickener.
9. a kind of preparation method of the aqueous polyurethane clothing leather bass of flexible, breathable according to claim 1, feature
It is：Water-washing process in the step (4) is continous way water-washing process, and water temperature controls successively is：40~60 DEG C of rinsing bowl
It is 5~12 slots for 1~4 slot, 70~80 DEG C of rinsing bowl, the bass after semidefinite form is passed through continous way by 13~15 slot of normal-temperature water
Washing obtains aqueous clothing leather bass after then drying sizing again.
10. a kind of preparation method of the aqueous polyurethane clothing leather bass of flexible, breathable according to claim 1, feature
It is：The waterborne polyurethane foaming slurry, Physical properties of coating film are：In 20~25 DEG C of temperature, the test of humidity 30~50%
Under the conditions of, 100% modulus is 1~2MPa, fracture strength >=10MPa, elongation >=300%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810614116.2A CN108755169B (en) | 2018-06-14 | 2018-06-14 | Preparation method of soft and breathable waterborne polyurethane clothing leather bass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810614116.2A CN108755169B (en) | 2018-06-14 | 2018-06-14 | Preparation method of soft and breathable waterborne polyurethane clothing leather bass |
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| Publication Number | Publication Date |
|---|---|
| CN108755169A true CN108755169A (en) | 2018-11-06 |
| CN108755169B CN108755169B (en) | 2021-03-19 |
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| CN201810614116.2A Active CN108755169B (en) | 2018-06-14 | 2018-06-14 | Preparation method of soft and breathable waterborne polyurethane clothing leather bass |
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| CN110218514A (en) * | 2019-04-26 | 2019-09-10 | 合肥科天水性科技有限责任公司 | A kind of Aqueous Polyurethane Coating Agent and its preparation method and application |
| CN110318262A (en) * | 2019-07-26 | 2019-10-11 | 兰州科天新材料股份有限公司 | A kind of aqueous shoe lining leather bass and preparation method thereof |
| CN110983802A (en) * | 2019-12-24 | 2020-04-10 | 兰州科天水性高分子材料有限公司 | Ultra-soft aqueous wet leather base and preparation method thereof |
| CN111005235A (en) * | 2019-12-04 | 2020-04-14 | 上海华峰新材料研发科技有限公司 | Method for preparing leather base by using high-solid-content blocked polyurethane resin |
| CN111389099A (en) * | 2020-03-19 | 2020-07-10 | 兰州科天投资控股股份有限公司 | Polymer microporous filter layer and preparation method and application thereof |
| CN112962327A (en) * | 2021-02-03 | 2021-06-15 | 合肥科天水性科技有限责任公司 | Thermal-insulation cold-proof water-based clothing leather and preparation method thereof |
| CN113026376A (en) * | 2021-02-25 | 2021-06-25 | 江西铭川科技实业有限公司 | Preparation method of slurry for producing high-physical-property waterborne polyurethane base |
| WO2021210983A1 (en) * | 2020-04-17 | 2021-10-21 | Betjo Beheer B.V. | Method for the production of a microporous polymer coated fabric |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110218514A (en) * | 2019-04-26 | 2019-09-10 | 合肥科天水性科技有限责任公司 | A kind of Aqueous Polyurethane Coating Agent and its preparation method and application |
| CN110318262A (en) * | 2019-07-26 | 2019-10-11 | 兰州科天新材料股份有限公司 | A kind of aqueous shoe lining leather bass and preparation method thereof |
| CN111005235A (en) * | 2019-12-04 | 2020-04-14 | 上海华峰新材料研发科技有限公司 | Method for preparing leather base by using high-solid-content blocked polyurethane resin |
| CN110983802A (en) * | 2019-12-24 | 2020-04-10 | 兰州科天水性高分子材料有限公司 | Ultra-soft aqueous wet leather base and preparation method thereof |
| CN110983802B (en) * | 2019-12-24 | 2022-08-19 | 兰州科天水性高分子材料有限公司 | Super-soft aqueous wet leather base and preparation method thereof |
| CN111389099A (en) * | 2020-03-19 | 2020-07-10 | 兰州科天投资控股股份有限公司 | Polymer microporous filter layer and preparation method and application thereof |
| WO2021210983A1 (en) * | 2020-04-17 | 2021-10-21 | Betjo Beheer B.V. | Method for the production of a microporous polymer coated fabric |
| CN112962327A (en) * | 2021-02-03 | 2021-06-15 | 合肥科天水性科技有限责任公司 | Thermal-insulation cold-proof water-based clothing leather and preparation method thereof |
| CN112962327B (en) * | 2021-02-03 | 2022-04-22 | 合肥科天水性科技有限责任公司 | Thermal-insulation cold-proof water-based clothing leather and preparation method thereof |
| CN113026376A (en) * | 2021-02-25 | 2021-06-25 | 江西铭川科技实业有限公司 | Preparation method of slurry for producing high-physical-property waterborne polyurethane base |
| CN113026376B (en) * | 2021-02-25 | 2022-11-25 | 江西铭川科技实业有限公司 | Preparation method of slurry for producing high-physical-property waterborne polyurethane base |
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