CN104674564B - A kind of production method of synthetic leather without folding line - Google Patents
A kind of production method of synthetic leather without folding line Download PDFInfo
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- CN104674564B CN104674564B CN201510111519.1A CN201510111519A CN104674564B CN 104674564 B CN104674564 B CN 104674564B CN 201510111519 A CN201510111519 A CN 201510111519A CN 104674564 B CN104674564 B CN 104674564B
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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
- D06N3/04—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 by reactions only involving carbon-to-carbon unsaturated bonds
- D06N3/06—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 by reactions only involving carbon-to-carbon unsaturated bonds with polyvinylchloride or its copolymerisation products
- D06N3/08—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 by reactions only involving carbon-to-carbon unsaturated bonds with polyvinylchloride or its copolymerisation products with a finishing layer consisting of polyacrylates, polyamides or polyurethanes or polyester
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/04—Layered products comprising a layer of synthetic resin as impregnant, bonding, or embedding substance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/26—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer which influences the bonding during the lamination process, e.g. release layers or pressure equalising layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/14—Printing or colouring
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Laminated Bodies (AREA)
Abstract
The production method of a kind of synthetic leather without folding line, comprises step: S1: prepare the first material component, comprises polyamide 80～100 parts, organo montmorillonite 1～10 parts, 0.2 0.8 parts of antioxidant；S2: the first material component is formed modified polyamide resin；S3: preparing polyamide and modified polyamide resin, in parts by weight, modified polyamide resin is 100 parts, and polyamide is 25～35 parts；S4: machine-shaping is base fabric fabric；S5: prepare base fabric fabric, impregnated in polyvinyl alcohol；S6: prepare solid content be 40% PAUR 100 parts, dimethylformamide 100 120 parts, porogen 10 15 parts, 14 parts of surfactant, 5 10 parts of solvent borne colorant, fluorine element high polymer 25 parts；S7: the base fabric fabric being through impregnation with in S5 is taken out, and impregnated in the solution of S6 component；S8: take out the base fabric fabric after S7 impregnates, and it is washed；S9: dry and shape；S10: one patterned layer is fitted on the base fabric fabric after S8 processes by an adhesive linkage.The synthetic leather that this method is formed has preferable folding resistance.
Description
Technical field
The present invention relates to synthetic leather field, in particular it relates to a kind of method of synthetic leather without folding line.
Background technology
Synthetic leather is widely used in shoe-making industry, and synthetic leather has excellent physical property and higher compared with corium
Cost performance, and originate unrestricted thus be widely used.Traditional synthetic leather is because of itself processing technology and material
Material is limited, and in use after repeatedly bending, the surface of synthetic leather can form folding line, and then largely effects on U.S.
See.
The problem being repeatedly bent to form folding line in order to improve conventional synthesis leather, in industry, the folding quality to synthetic leather is carried out
A lot of researchs.The method improved the folding quality of synthetic leather at present is mainly at dry method TPU film coating process, but this technique meeting
Increase the hardness of synthetic leather, reduce flexibility and the comfort property of synthetic leather, additionally because pasting the increase of TPU membrane operation on synthetic leather
And increase cost.So that provide a kind of new solution.
Summary of the invention
The present invention provides the production method of a kind of synthetic leather without folding line, comprises the steps of S1: prepare the first material group
Point, in parts by weight, described first material component comprises polyamide 80～100 parts, organo montmorillonite 1～10 parts, antioxygen
Agent 0.2-0.8 part；S2: described first material component is blended pelletize, forms modified polyamide resin；S3: prepare the second material
Component, described second material component comprises polyamide and the modified polyamide resin of step S2 formation, in parts by weight, changes
Property polyamide is 100 parts, polyamide is 25～35 parts；S4: be base fabric by described second material component machine-shaping
Fabric；S5: prepare the base fabric fabric that described step S4 is formed, and described base fabric fabric be impregnated in polyvinyl alcohol；S6: prepare
3rd material component, in parts by weight, described 3rd material component comprise PAUR 100 parts that solid content is 40%,
Dimethylformamide 100-120 part, porogen 10-15 part, surfactant 1-4 part, solvent borne colorant 5-10 part, fluorine element height gather
Thing 2-5 part；S7: the base fabric fabric being through impregnation with in step S5 is taken out, and impregnated in the solution comprising the 3rd material component；
S8: take out the base fabric fabric after step S7 impregnates, and it is washed；S9: to the base fabric fabric after step S8 is washed
Dry and shape；S10: one patterned layer is fitted on the base fabric fabric after step S9 processes by an adhesive linkage；Institute
Stating adhesive linkage is that one first solution evaporation solute precipitation forms, and in parts by weight, comprise solid content is 40% to described first solution
EU 25～45 parts, solid content 60% thermoplastic polyester 55～75 parts；Described patterned layer is that one second solution steams
Sending out solute precipitation to form, described second solution is the polyurethane solutions that solid content is more than 65%.
Further, the polyamide model in described step S1 is PA6 or PA66, and described antioxidant is the four seasons penta
Four alcohol esters.
Further, the treatment temperature of described step S2 is 75 DEG C～125 DEG C.
Further, described first material component is blended pelletize by double screw extruder by described step S2.
Further, described step S4 by weaving molding or punctures the technique of molding by described second material component processing
It is shaped to base fabric fabric.
Further, the fibre fineness of the base fabric fabric that described step S5 prepares is less than 0.ldtex.
Further, the PAUR model of described step S6 is A-7030, and porogen model is carboxymethyl cellulose
Element or kieselguhr, surfactant model is S-7, and solvent borne colorant model is EK-048, and fluorine element high polymer model is F-3D.
Further, described step S10 solid content be the EU model of 40% be A-1065G, solid content
60% thermoplastic polyester model is M-530.
Further, a patterned layer is fitted in the base after step S9 processes by an adhesive linkage by described step S10
S11 is comprised the steps of: described patterned layer be formed on a release layer on cloth fabric；S12: in described patterned layer and through step
Described adhesive linkage is formed between base fabric fabric after rapid S9 process；S13: peel off described release layer.
Synthetic leather without folding line prepared by the present invention changes from base fabric fabric, adhesive linkage and the patterned layer of synthetic leather simultaneously
Kind.Use nano imvite that synthetic leather scrim material carries out intercalation modifying, improve the modulus of synthetic leather base cloth fabric and return
Elastic energy；Use low viscosity thermoplastic polyurethane blends as the adhesive linkage of synthetic leather, improve synthetic leather resilience and
Modulus, makes synthetic leather have more preferable folding quality；Use high solid content polyurethane as synthetic leather patterned layer, reduce because of solvent
Evaporate the hole formed at surface layer, make synthetic leather be not easily formed folding line in bending rear surface.
Accompanying drawing explanation
Figure 1A depicts one embodiment of the invention and forms the schematic diagram of patterned layer on base fabric fabric；
Figure 1B depicts one embodiment of the invention and peels off the schematic diagram of release layer；
Detailed description of the invention
For being more fully understood that technical scheme, elaborate below with reference to being specifically illustrating.Should be understood that following
Specific embodiment be not used to limit technical scheme be embodied as aspect, it is only technical solution of the present invention and can use
Enforcement aspect.
The present invention provides the production method of a kind of synthetic leather without folding line, comprises the steps of S1: prepare the first material group
Point, in parts by weight, the first material component comprises polyamide 80～100 parts, organo montmorillonite 1～10 parts, antioxidant
0.2-0.8 part；S2: the first material component is blended pelletize, forms modified polyamide resin；S3: prepare the second material component, the
Two material components comprise polyamide and the modified polyamide resin of step S2 formation, in parts by weight, modified polyamide tree
Fat is 100 parts, and polyamide is 25～35 parts；S4: be base fabric fabric by the second material component machine-shaping；S5: prepare step
The base fabric fabric that rapid S4 is formed, and base fabric fabric be impregnated in polyvinyl alcohol；S6: prepare the 3rd material component, with weight portion
Meter, the 3rd material component comprises PAUR 100 parts that solid content is 40%, dimethylformamide 100-120 part, pore
Agent 10-15 part, surfactant 1-4 part, solvent borne colorant 5-10 part, fluorine element high polymer 2-5 part；S7: by step S5 through leaching
The base fabric fabric of stain takes out, and impregnated in the solution comprising the 3rd material component；S8: take out the base fabric after step S7 impregnates
Fabric, and it is washed；S9: the base fabric fabric after step S8 is washed is dried and shaped；S10: glue by one
Connect on the base fabric fabric that a patterned layer is fitted in after step S9 processes by layer；Adhesive linkage is that one first solution evaporation solute separates out
Forming, the first solution in parts by weight, comprises EU 25～45 parts, solid content 60% thermoplastic that solid content is 40%
Property polyester 55～75 parts；Patterned layer is that one second solution evaporation solute precipitation forms, and the second solution is that solid content is more than 65%
Polyurethane solutions.
It should be noted that, the relation of " in parts by weight " its based material each component relative mass, such as the first material component bag
Containing polyamide 80～100g, organo montmorillonite 1～10g, antioxidant 0.2-0.8g.The statement that the most each material component is similar
Also can understand according to this, the most similar description repeats no more.
Easy to understand, the first solution evaporation solute as herein described separates out and the precipitation of the second solution evaporation solute means and comprises
The solution of specific solute, the process that at least part of solute separates out after part solution is by thermal evaporation.
Compared with existing use for synthetic leather base fabric fabric, the base fabric fabric that the present invention provides has the advantage that employing is organic
Imvite modified polyamide, makes polyamide have a higher modulus, and has higher impact resistance and stretching is stretched
Long rate.
In one embodiment, the polyamide model in step S1 is PA6 or PA66, and antioxidant is tetrapentaerythritol
Ester.
In one embodiment, the treatment temperature of step S2 is 75 DEG C～125 DEG C.
In one embodiment, the first material component is blended pelletize by double screw extruder by step S2.
In one embodiment, step S4 by weaving molding or punctures the technique of molding by the second material component machine-shaping
For base fabric fabric.
In one embodiment, the fibre fineness of the base fabric fabric that step S5 prepares is less than 0.ldtex.
In one embodiment, the PAUR model of step S6 is A-7030, and porogen model is carboxymethyl cellulose
Element or kieselguhr, surfactant model is S-7, and solvent borne colorant model is EK-048, and fluorine element high polymer model is F-3D.
In one embodiment, step S10 solid content be the EU model of 40% be A-1065G, solid content
60% thermoplastic polyester model is M-530.
In one embodiment, a patterned layer is fitted in the base after step S9 processes by an adhesive linkage by step S10
S11 is comprised the steps of: patterned layer be formed on a release layer on cloth fabric；S12: in patterned layer and through the process of step S9
After base fabric fabric between formed adhesive linkage；S13: peel off release layer.
The concrete production technology of synthetic leather of the present invention will be described by specific embodiment below.
Embodiment one:
Table 1.1 modified polyamide resin formula
| Material component | Weight |
| Polyamide | 100kg |
| Organo montmorillonite | 5kg |
| Antioxidant (pentaerythritol tetrathioglycollate) | 0.35kg |
Table 1.2 impregnates fluid,matching formula:
Table 1.3 adhesive linkage polyurethane formulation liquid formulation by weight:
First, respective material, and the polyurethane solutions that solid content is more than 65% are prepared by the formula of table 1.1 to 1.3.
Further, carry out process is blended to the first material component by double screw extruder, it is achieved fusion intercalation, make
Grain, the treatment temperature of this process is 75 DEG C～125 DEG C；Modified polyamide resin is obtained by this step.
Further, modified polyamide resin 100kg and polyamide 30kg that preparation is previously formed are blended and spin, and
Base fabric fabric is formed by traditional handicrafts such as weaving molding or puncture molding.
Further, the base fabric fabric being previously formed be impregnated in polyvinyl alcohol (being called for short PVA).The base fabric material being through impregnation with
Material tearing strength and bursting strength are higher.
Further, base fabric fabric can be rolled out, and it is carried out arrangement (can be by instruments such as ironing rollers) of plating so that it is
Positive surface evenness is suitable for processing.
Further, the material component of table 1.2 is mixed to form impregnation liquid, and the base fabric fabric dipping that will arrange through plating
In the impregnation liquid formed.In dipping process, base fabric fabric can be made to be sufficiently impregnated with by compression roller.The time of dipping need to guarantee
Mixed material component can fully condense on base fabric fabric.
Further, take out the scrim material being through impregnation with, and base fabric fabric is washed, it is ensured that the diformazan after being through impregnation with
Base Methanamide can be sufficiently displaced from, with avoid base fabric fabric follow-up use time remaining dimethylformamide injured skin.Specifically
For, washing time can be controlled in 38min-45min；Washing extrusion passes can be controlled in 12 times；Washing temperature can be controlled in 85
℃；After washing, rinsing bowl dimethylformamide concentration is less than 0.2%.
Further, the scrim material after washing can be dried and shaped.
Further, refer to Figure 1A, Figure 1A depict one embodiment of the invention on base fabric fabric, form patterned layer
Schematic diagram, in this step, the solid content polyurethane solutions more than 65% evaporative crystallization on release layer 10 forms patterned layer 20,
The solution evaporation crystallization simultaneously table 1.3 component formed forms adhesive linkage 30, and adhesive linkage 30 is configured at patterned layer 20 He
Between scrim material 40 after aforementioned drying and sizing, fit with by both.Easy to understand, adhesive linkage 30 can be initially formed
On patterned layer 20 or scrim material 40 any layer, then both being fitted, follow-up other embodiments also can the most sequentially be carried out
Laminating, repeats no more.
Further, refer to Figure 1B, Figure 1B and depict the schematic diagram of one embodiment of the invention stripping release layer, complete
After abovementioned steps, release layer 10 can be peeled off.
Embodiment two:
Table 2.1 modified polyamide resin formula
| Material component | Weight |
| Polyamide | 100kg |
| Organo montmorillonite | 8kg |
| Antioxidant | 0.6kg |
Table 2.2 impregnates fluid,matching formula:
Table 2.3 adhesive linkage polyurethane formulation liquid formulation by weight:
First, respective material, and the polyurethane solutions that solid content is more than 65% are prepared by the formula of table 2.1 to 2.3.
Further, carry out process is blended to the first material component by double screw extruder, it is achieved fusion intercalation, make
Grain, the treatment temperature of this process is 75 DEG C～125 DEG C；Modified polyamide resin is obtained by this step.
Further, modified polyamide resin 100kg and polyamide 26kg that preparation is previously formed are blended and spin, and
Base fabric fabric is formed by traditional handicrafts such as weaving molding or puncture molding.
Further, the base fabric fabric being previously formed be impregnated in polyvinyl alcohol (being called for short PVA).The base fabric material being through impregnation with
Material tearing strength and bursting strength are higher.
Further, base fabric fabric can be rolled out, and it is carried out arrangement (can be by instruments such as ironing rollers) of plating so that it is
Positive surface evenness is suitable for processing.
Further, the material component of table 2.2 is mixed to form impregnation liquid, and the base fabric fabric dipping that will arrange through plating
In the impregnation liquid formed.In dipping process, base fabric fabric can be made to be sufficiently impregnated with by compression roller.The time of dipping need to guarantee
Mixed material component can fully condense on base fabric fabric.
Further, take out the scrim material being through impregnation with, and base fabric fabric is washed, it is ensured that the diformazan after being through impregnation with
Base Methanamide can be sufficiently displaced from, with avoid base fabric fabric follow-up use time remaining dimethylformamide injured skin.Specifically
For, washing time can be controlled in 38min-45min；Washing extrusion passes can be controlled in 12 times；Washing temperature can be controlled in 85
℃；After washing, rinsing bowl dimethylformamide concentration is less than 0.2%.
Further, the scrim material after washing can be dried and shaped.
Further, refer to Figure 1A, Figure 1A depict one embodiment of the invention on base fabric fabric, form patterned layer
Schematic diagram, in this step, the solid content polyurethane solutions more than 65% evaporative crystallization on release layer 10 forms patterned layer 20,
The solution evaporation crystallization simultaneously table 2.3 component formed forms adhesive linkage 30, and adhesive linkage 30 is configured at patterned layer 20 He
Between scrim material 40 after aforementioned drying and sizing, fit with by both.
Further, refer to Figure 1B, Figure 1B and depict the schematic diagram of one embodiment of the invention stripping release layer, complete
After abovementioned steps, release layer 10 can be peeled off.
Embodiment three:
Table 3.1 modified polyamide resin formula
| Material component | Weight |
| Polyamide | 80kg |
| Organo montmorillonite | 1kg |
| Antioxidant | 0.2kg |
Table 3.2 impregnates fluid,matching formula:
Table 3.3 adhesive linkage polyurethane formulation liquid formulation by weight:
First, respective material, and the polyurethane solutions that solid content is more than 65% are prepared by the formula of table 3.1 to 3.3.
Further, carry out process is blended to the first material component by double screw extruder, it is achieved fusion intercalation, make
Grain, the treatment temperature of this process is 75 DEG C；Modified polyamide resin is obtained by this step.
Further, modified polyamide resin 100kg and polyamide 25kg that preparation is previously formed are blended and spin, and
Base fabric fabric is formed by traditional handicrafts such as weaving molding or puncture molding.
Further, the base fabric fabric being previously formed be impregnated in polyvinyl alcohol (being called for short PVA).The base fabric material being through impregnation with
Material tearing strength and bursting strength are higher.
Further, base fabric fabric can be rolled out, and it is carried out arrangement (can be by instruments such as ironing rollers) of plating so that it is
Positive surface evenness is suitable for processing.
Further, the material component of table 3.2 is mixed to form impregnation liquid, and the base fabric fabric dipping that will arrange through plating
In the impregnation liquid formed.In dipping process, base fabric fabric can be made to be sufficiently impregnated with by compression roller.The time of dipping need to guarantee
Mixed material component can fully condense on base fabric fabric.
Further, take out the scrim material being through impregnation with, and base fabric fabric is washed, it is ensured that the diformazan after being through impregnation with
Base Methanamide can be sufficiently displaced from, with avoid base fabric fabric follow-up use time remaining dimethylformamide injured skin.Specifically
For, washing time can be controlled in 38min-45min；Washing extrusion passes can be controlled in 12 times；Washing temperature can be controlled in 85
℃；After washing, rinsing bowl dimethylformamide concentration is less than 0.2%.
Further, the scrim material after washing can be dried and shaped.
Further, refer to Figure 1A, Figure 1A depict one embodiment of the invention on base fabric fabric, form patterned layer
Schematic diagram, in this step, the solid content polyurethane solutions more than 65% evaporative crystallization on release layer 10 forms patterned layer 20,
The solution evaporation crystallization simultaneously table 3.3 component formed forms adhesive linkage 30, and adhesive linkage 30 is configured at patterned layer 20 He
Between scrim material 40 after aforementioned drying and sizing, fit with by both.
Further, refer to Figure 1B, Figure 1B and depict the schematic diagram of one embodiment of the invention stripping release layer, complete
After abovementioned steps, release layer 10 can be peeled off.
Embodiment four:
Table 4.1 modified polyamide resin formula
| Material component | Weight |
| Polyamide | 100kg |
| Organo montmorillonite | 10kg |
| Antioxidant | 0.8kg |
Table 4.2 impregnates fluid,matching formula:
| Material component | Weight |
| Solid content is the PAUR (A-7030) of 40% | 100kg |
| Dimethylformamide (DMF) | 120kg |
| Porogen (kieselguhr) | 15kg |
| Surfactant (S-7) | 4kg |
| Solvent borne colorant (EK-048) | 10kg |
| Fluorine element high polymer (F-3D) | 5kg |
Table 4.3 adhesive linkage polyurethane formulation liquid formulation by weight:
First, respective material, and the polyurethane solutions that solid content is more than 65% are prepared by the formula of table 4.1 to 4.3.
Further, carry out process is blended to the first material component by double screw extruder, it is achieved fusion intercalation, make
Grain, the treatment temperature of this process is 125 DEG C；Modified polyamide resin is obtained by this step.
Further, modified polyamide resin 100kg and polyamide 35kg that preparation is previously formed are blended and spin, and
Base fabric fabric is formed by traditional handicrafts such as weaving molding or puncture molding.
Further, the base fabric fabric being previously formed be impregnated in polyvinyl alcohol (being called for short PVA).The base fabric material being through impregnation with
Material tearing strength and bursting strength are higher.
Further, base fabric fabric can be rolled out, and it is carried out arrangement (can be by instruments such as ironing rollers) of plating so that it is
Positive surface evenness is suitable for processing.
Further, the material component of table 4.2 is mixed to form impregnation liquid, and the base fabric fabric dipping that will arrange through plating
In the impregnation liquid formed.In dipping process, base fabric fabric can be made to be sufficiently impregnated with by compression roller.The time of dipping need to guarantee
Mixed material component can fully condense on base fabric fabric.
Further, take out the scrim material being through impregnation with, and base fabric fabric is washed, it is ensured that the diformazan after being through impregnation with
Base Methanamide can be sufficiently displaced from, with avoid base fabric fabric follow-up use time remaining dimethylformamide injured skin.Specifically
For, washing time can be controlled in 38min-45min；Washing extrusion passes can be controlled in 12 times；Washing temperature can be controlled in 85
℃；After washing, rinsing bowl dimethylformamide concentration is less than 0.2%.
Further, the scrim material after washing can be dried and shaped.
Further, refer to Figure 1A, Figure 1A depict one embodiment of the invention on base fabric fabric, form patterned layer
Schematic diagram, in this step, the solid content polyurethane solutions more than 65% evaporative crystallization on release layer 10 forms patterned layer 20,
The solution evaporation crystallization simultaneously table 4.3 component formed forms adhesive linkage 30, and adhesive linkage 30 is configured at patterned layer 20 He
Between scrim material 40 after aforementioned drying and sizing, fit with by both.
Further, refer to Figure 1B, Figure 1B and depict the schematic diagram of one embodiment of the invention stripping release layer, complete
After abovementioned steps, release layer 10 can be peeled off.
Embodiment five
Table 5.1 modified polyamide resin formula
| Material component | Weight |
| Polyamide | 90kg |
| Organo montmorillonite | 10kg |
| Antioxidant | 0.8kg |
Table 5.2 impregnates fluid,matching formula:
Table 5.3 adhesive linkage polyurethane formulation liquid formulation by weight:
First, respective material, and the polyurethane solutions that solid content is more than 65% are prepared by the formula of table 5.1 to 5.3.
Further, carry out process is blended to the first material component by double screw extruder, it is achieved fusion intercalation, make
Grain, the treatment temperature of this process is 90 DEG C；Modified polyamide resin is obtained by this step.
Further, modified polyamide resin 100kg and polyamide 35kg that preparation is previously formed are blended and spin, and
Base fabric fabric is formed by traditional handicrafts such as weaving molding or puncture molding.
Further, the base fabric fabric being previously formed be impregnated in polyvinyl alcohol (being called for short PVA).The base fabric material being through impregnation with
Material tearing strength and bursting strength are higher.
Further, base fabric fabric can be rolled out, and it is carried out arrangement (can be by instruments such as ironing rollers) of plating so that it is
Positive surface evenness is suitable for processing.
Further, the material component of table 5.2 is mixed to form impregnation liquid, and the base fabric fabric dipping that will arrange through plating
In the impregnation liquid formed.In dipping process, base fabric fabric can be made to be sufficiently impregnated with by compression roller.The time of dipping need to guarantee
Mixed material component can fully condense on base fabric fabric.
Further, take out the scrim material being through impregnation with, and base fabric fabric is washed, it is ensured that the diformazan after being through impregnation with
Base Methanamide can be sufficiently displaced from, with avoid base fabric fabric follow-up use time remaining dimethylformamide injured skin.Specifically
For, washing time can be controlled in 38min-45min；Washing extrusion passes can be controlled in 12 times；Washing temperature can be controlled in 85
℃；After washing, rinsing bowl dimethylformamide concentration is less than 0.2%.
Further, the scrim material after washing can be dried and shaped.
Further, refer to Figure 1A, Figure 1A depict one embodiment of the invention on base fabric fabric, form patterned layer
Schematic diagram, in this step, the solid content polyurethane solutions more than 65% evaporative crystallization on release layer 10 forms patterned layer 20,
The solution evaporation crystallization simultaneously table 5.3 component formed forms adhesive linkage 30, and adhesive linkage 30 is configured at patterned layer 20 He
Between scrim material 40 after aforementioned drying and sizing, fit with by both.
Further, refer to Figure 1B, Figure 1B and depict the schematic diagram of one embodiment of the invention stripping release layer, complete
After abovementioned steps, release layer 10 can be peeled off.
Table 6 each embodiment physical property contrasts:
By table 6, the synthetic leather that the inventive method is formed has preferable resistance to wrinkle, therefore can avoid effectively keeping away
Exempt from the existence of folding line.
It should be noted that, polyurethane used by the present invention is Xu Chuan chemical company product；The trade mark is that the fluorine element height of F-3D gathers
Thing and the surfactant that the trade mark is S-7 are Shanghai Shen Chemical Co., Ltd. product；Solvent borne colorant EK-048 is that Taiwan is big
Respectful Products；Kieselguhr is Co., Ltd's product in Celite；Organo montmorillonite is marine origin Science and Technology Ltd. of Shenzhen
Product；Solid content 60% thermoplastic polyester M-530 is Shandong Mei Rui Materials Co., Ltd product, the solid content poly-ammonia more than 65%
Ester is Bayer Material Science company limited product.
Claims (7)
1. the production method without folding line synthetic leather, it is characterised in that comprise the steps of
S1: prepare the first material component, in parts by weight, described first material component comprises polyamide 80～100 parts, has
Machine montmorillonite 1～10 parts, antioxidant 0.2-0.8 part；
S2: described first material component is blended pelletize, forms modified polyamide resin；
S3: prepare the second material component, described second material component comprises polyamide and the modified polyamides of step S2 formation
Polyimide resin, in parts by weight, modified polyamide resin is 100 parts, and polyamide is 25～35 parts；
S4: be base fabric fabric by described second material component machine-shaping；
S5: prepare the base fabric fabric that described step S4 is formed, and described base fabric fabric be impregnated in polyvinyl alcohol；
S6: preparing the 3rd material component, in parts by weight, described 3rd material component comprises the polyester-type that solid content is 40% and gathers
Urethane 100 parts, dimethylformamide 100-120 part, porogen 10-15 part, surfactant 1-4 part, solvent borne colorant 5-10
Part, fluorine element high polymer 2-5 part；
S7: the base fabric fabric being through impregnation with in step S5 is taken out, and impregnated in the solution comprising the 3rd material component；
S8: take out the base fabric fabric after step S7 impregnates, and it is washed；
S9: the base fabric fabric after step S8 is washed is dried and shaped；
S10: one patterned layer is fitted on the base fabric fabric after step S9 processes by an adhesive linkage；Described adhesive linkage is one
First solution evaporation solute separates out and forms, and described first solution in parts by weight, comprises the poly-ammonia of polyether-type that solid content is 40%
Ester 25～45 parts, solid content 60% thermoplastic polyester 55～75 parts；Described patterned layer be one second solution evaporation solute separate out and
Becoming, described second solution is the polyurethane solutions that solid content is more than 65%.
The production method of synthetic leather without folding line the most according to claim 1, it is characterised in that the polyamides in described step S1
Polyimide resin model is PA6 or PA66, and described antioxidant is pentaerythritol tetrathioglycollate.
The production method of synthetic leather without folding line the most according to claim 1, it is characterised in that the process temperature of described step S2
Degree is 75 DEG C～125 DEG C.
The production method of synthetic leather without folding line the most according to claim 1, it is characterised in that described step S2 is by double spiral shells
Described first material component is blended pelletize by bar extruder.
The production method of synthetic leather without folding line the most according to claim 1, it is characterised in that described step S4 is by weaving
Described second material component machine-shaping is base fabric fabric by molding or the technique puncturing molding.
The production method of synthetic leather without folding line the most according to claim 1, it is characterised in that the base that described step S5 prepares
The fibre fineness of cloth fabric is less than 0.ldtex.
The production method of synthetic leather without folding line the most according to claim 1, it is characterised in that pass through in described step S10
One patterned layer is fitted in and comprises the steps of on the base fabric fabric after step S9 processes by one adhesive linkage
S11: described patterned layer is formed on a release layer；
S12: form described adhesive linkage between described patterned layer and the base fabric fabric after step S9 processes；
S13: peel off described release layer.
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| CN106087450A (en) * | 2016-08-23 | 2016-11-09 | 福建宝利特科技股份有限公司 | A kind of manufacture method of artificial leather without base fabric |
| CN109652994A (en) * | 2018-11-30 | 2019-04-19 | 安徽安利材料科技股份有限公司 | Two-sided no folding line no-solvent polyurethane luggage synthetic leather of one kind and preparation method thereof |
| CN110254003A (en) * | 2019-06-04 | 2019-09-20 | 浙江锦尚合成革有限公司 | A kind of formula and manufacturing method of the anti-corrosion-resistant high-strength synthetic leather of folding |
| CN111676709B (en) * | 2020-06-19 | 2023-08-18 | 广东玉兰集团股份有限公司 | Folding-resistant and crease-resistant base material, preparation method and wall cloth |
| CN112795355A (en) * | 2020-12-25 | 2021-05-14 | 上海邦中高分子材料股份有限公司 | Special bonding resin for steel-plastic composite pipe and preparation method thereof |
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