CN108329850A - Shoe material adhesive sheet - Google Patents
Shoe material adhesive sheet Download PDFInfo
- Publication number
- CN108329850A CN108329850A CN201810060283.7A CN201810060283A CN108329850A CN 108329850 A CN108329850 A CN 108329850A CN 201810060283 A CN201810060283 A CN 201810060283A CN 108329850 A CN108329850 A CN 108329850A
- Authority
- CN
- China
- Prior art keywords
- bonding sheet
- footwear material
- material bonding
- sheet according
- footwear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 54
- 239000000853 adhesive Substances 0.000 title abstract description 7
- 230000001070 adhesive effect Effects 0.000 title abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 22
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 13
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229920002635 polyurethane Polymers 0.000 claims abstract description 6
- 239000004814 polyurethane Substances 0.000 claims abstract description 6
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 5
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 5
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 13
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 13
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 13
- 239000002253 acid Substances 0.000 claims description 11
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- 150000004678 hydrides Chemical class 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 229920002334 Spandex Polymers 0.000 claims description 4
- 230000005764 inhibitory process Effects 0.000 claims description 4
- IANQTJSKSUMEQM-UHFFFAOYSA-N 1-benzofuran Chemical compound C1=CC=C2OC=CC2=C1 IANQTJSKSUMEQM-UHFFFAOYSA-N 0.000 claims description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 3
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- 229920006271 aliphatic hydrocarbon resin Polymers 0.000 claims description 3
- 239000003607 modifier Substances 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 239000005011 phenolic resin Substances 0.000 claims description 3
- 239000003381 stabilizer Substances 0.000 claims description 3
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 claims description 3
- 239000011975 tartaric acid Substances 0.000 claims description 3
- 235000002906 tartaric acid Nutrition 0.000 claims description 3
- 150000003505 terpenes Chemical class 0.000 claims description 3
- 235000007586 terpenes Nutrition 0.000 claims description 3
- 229920006272 aromatic hydrocarbon resin Polymers 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- 244000025254 Cannabis sativa Species 0.000 claims 1
- 235000009508 confectionery Nutrition 0.000 claims 1
- 239000004519 grease Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 abstract description 6
- 238000004383 yellowing Methods 0.000 abstract 2
- 239000002861 polymer material Substances 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 description 7
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 238000004806 packaging method and process Methods 0.000 description 6
- 125000005456 glyceride group Chemical group 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000012943 hotmelt Substances 0.000 description 3
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 2
- 239000012267 brine Substances 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 235000006408 oxalic acid Nutrition 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 244000248349 Citrus limon Species 0.000 description 1
- 235000005979 Citrus limon Nutrition 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
- C09J2301/408—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the adhesive layer
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2475/00—Presence of polyurethane
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The invention discloses a shoe material adhesive sheet which comprises the following raw material components in parts by weight: 85-95 parts of polyurethane high polymer material, 0.5-5 parts of antioxidant, 0.3-4 parts of yellowing resistant agent, 1.5-10 parts of tackifier and 0.5-5 parts of phenol yellowing resistant agent. The shoe material adhesive sheet has the advantages of easy operation, high adhesive strength and ideal test effect of the obtained related shoes.
Description
Technical field
The present invention relates to chemical adhesive technical fields, and in particular to be a kind of footwear material bonding sheet.
Background technology
Important component for the hot-melt film of lining and heel backsight before toe-cap as footwear, plays fixed shoes
The toe-cap in face and followed by shape effect, but shoes patch bottom technique above there are no relevant application appearance, this is because
There are following two problems for hot-melt film on the market:1, fusing point is higher, and temperature requirement is relatively inaccessible to when operation, is easily damaged
The case where sole, shoe last or even vamp material;2, the hot melt adhesive film tack strength of low melting point is bad, leads to the correlation of later stage footwear
Test failure.
Invention content
The purpose of the present invention is to provide a kind of footwear material bonding sheets, have the correlation that easily operated, adhesion strength is high, obtains
Footwear test the comparatively ideal advantage of effect.
In order to achieve the above objectives, solution of the invention is:
A kind of footwear material bonding sheet, is counted in parts by weight, including following raw material components:
The polyurethane high molecule material is low melting point elastane.
A kind of footwear material bonding sheet, is counted in parts by weight, including following raw material components:
The antioxidant is 2,6- toluene di-tert-butyl phenols.
The color inhibition agent is ultraviolet-resistant aid, thermal oxidation stabilizer, one or more combinations in nanometer additive.
The tackifier are rosin and its derivative, terpene resin and its modifier, Petropols and its hydride, copolymerization
The combination of one or more of object, cumarone resin and its hydride.
The rosin and its derivative are rosin glycerides or rosin phenolic resin, the Petropols be C5 resins or
Person's C9 resins.
The Huang of the resistance to phenol agent is one or more combinations of low volatility acid or sulfo group acid derivative, the work of the Huang of resistance to phenol agent
With being reaction of nitrogen oxides in the ingredient and air that prevent in footwear material bonding sheet, reactant encounters alkaline environment, leads to material
Xanthochromia.
The low volatility acid is citric acid, oxalic acid or tartaric acid.
A kind of preparation method of footwear material bonding sheet, includes the following steps:
(1) first each raw material of formula ratio is put into the barrel being connected with extruder;
(2) and then raw material enters extruder from barrel, cooling after being squeezed out at a temperature of 30~200 DEG C, crimps, packaging,
Finally obtain the footwear material bonding sheet.
After adopting the above technical scheme, a kind of footwear material bonding sheet of the present invention, using the low melting point bullet that can be bought in the market
Property polyurethane material, realize lower operation temperature demand, specific control is no more than 100 DEG C;Meanwhile utilizing tackifier and resistance to phenol
Yellow agent, which is respectively increased, sticks together performance and the xanthochromia of resistance to phenol performance, is required the dependence test of sticker when meeting for sole fitting,
Border peel strength can reach 4.0Kg/cm, at shoes high temperature ageing and at Qualification invariably after shoes hydrolysis 72 hours,
Have the advantages that easily operated, adhesion strength is high, obtained related footwear test effect it is comparatively ideal.
Specific implementation mode
In order to further explain the technical solution of the present invention, being explained in detail the present invention below by specific embodiment
It states.
One, the preparation of the footwear material bonding sheet
A kind of footwear material bonding sheet, is counted in parts by weight, including following raw material components:
Wherein, polyurethane high molecule material is commercially available low melting point elastane, antioxidant
For 2,6- toluene di-tert-butyl phenols.
Color inhibition agent is ultraviolet-resistant aid, thermal oxidation stabilizer, one or more combinations in nanometer additive.
Tackifier are rosin and its derivative, terpene resin and its modifier, Petropols and its hydride, copolymer,
The combination of one or more of cumarone resin and its hydride.
Rosin and its derivative are that either rosin phenolic resin Petropols are C5 resins or C9 trees to rosin glycerides
Fat.
The Huang of resistance to phenol agent is one or more combinations of low volatility acid or sulfo group acid derivative, and low volatility acid is lemon
Acid, oxalic acid or tartaric acid.The effect of the Huang of resistance to phenol agent is that the nitrogen oxides in the ingredient and air prevented in footwear material bonding sheet is anti-
It answers, reactant encounters alkaline environment, leads to material xanthochromia.
A kind of preparation method of footwear material bonding sheet, includes the following steps:
(1) first each raw material of formula ratio is put into the barrel being connected with extruder;
(2) and then raw material enters extruder from barrel, cooling after being squeezed out at a temperature of 30~200 DEG C, crimps, packaging,
The footwear material bonding sheet is finally obtained, preferably, the temperature squeezed out is 120 DEG C, 155 DEG C or 200 DEG C.
In following embodiment, polyurethane high molecule material is commercially available low melting point elastane,
Antioxidant is 2,6- toluene di-tert-butyl phenols, and color inhibition agent is commercially available obtained ultraviolet-resistant aid HTUV150,
Tackifier are rosin glycerides, and the Huang of resistance to phenol agent is citric acid.
Embodiment 1
A kind of footwear material bonding sheet, is counted in parts by weight, including following raw material components:
A kind of preparation method of footwear material bonding sheet, includes the following steps:
(1) first each raw material of formula ratio is put into the barrel being connected with extruder;
(2) and then raw material enters extruder from barrel, cooling after being squeezed out at a temperature of 120 DEG C, crimps, packaging, finally
Obtain footwear material bonding sheet.
Embodiment 2
A kind of footwear material bonding sheet, is counted in parts by weight, including following raw material components:
A kind of preparation method of footwear material bonding sheet, includes the following steps:
(1) first each raw material of formula ratio is put into the barrel being connected with extruder;
(2) and then raw material enters extruder from barrel, cooling after being squeezed out at a temperature of 155 DEG C, crimps, packaging, finally
Obtain footwear material bonding sheet.
Embodiment 3
A kind of footwear material bonding sheet, is counted in parts by weight, including following raw material components:
A kind of preparation method of footwear material bonding sheet, includes the following steps:
(1) first each raw material of formula ratio is put into the barrel being connected with extruder;
(2) and then raw material enters extruder from barrel, cooling after being squeezed out at a temperature of 155 DEG C, crimps, packaging, finally
Obtain footwear material bonding sheet.
Embodiment 4
A kind of footwear material bonding sheet, is counted in parts by weight, including following raw material components:
A kind of preparation method of footwear material bonding sheet, includes the following steps:
(1) first each raw material of formula ratio is put into the barrel being connected with extruder;
(2) and then raw material enters extruder from barrel, cooling after being squeezed out at a temperature of 200 DEG C, crimps, packaging, finally
Obtain footwear material bonding sheet.
Two, performance test
In use, the sprinkling of the carry out brine area to be bonded (a concentration of 0.02-0.5g/ml of brine) to two panels footwear material
Processing, then by the footwear material bonding sheet obtained in embodiment or the hot-melt film bought on the market (by Quanzhou Ai Lika green woods
Expect that Science and Technology Ltd. provides) the area to be bonded of a piece of footwear material wherein is placed, then by the region to be fit of two panels footwear material
Corresponding fitting, and keep being bonded, footwear material adhesive is obtained, microwave heating is carried out to footwear material adhesive by microwave heating equipment
Processing, heating time are 1-5 minutes, power 800-1000W, just so that two panels footwear material be adhesively fixed, carries out later
Low temperature cold sizing treatment is to get to product shoes.
From table 1 it follows that a kind of footwear material bonding sheet of the present invention, has the phase that easily operated, adhesion strength is high, obtains
It closes footwear and tests the comparatively ideal advantage of effect.
The performance test results of 1 footwear material bonding sheet of table
The product form and style of above-described embodiment and the non-limiting present invention, the ordinary skill people of any technical field
The appropriate changes or modifications that member does it all should be regarded as the patent category for not departing from the present invention.
Claims (8)
1. a kind of footwear material bonding sheet, is counted in parts by weight, it is characterised in that:Including following raw material components:
The polyurethane high molecule material is low melting point elastane.
2. a kind of footwear material bonding sheet according to claim 1, it is characterised in that:It counts in parts by weight, including following raw material
Component:
3. a kind of footwear material bonding sheet according to claim 1, it is characterised in that:The antioxidant is 2,6- di-t-butyls
P-cresol.
4. a kind of footwear material bonding sheet according to claim 1, it is characterised in that:The color inhibition agent is ultraviolet-resistant aid,
Thermal oxidation stabilizer, one or more combinations in nanometer additive.
5. a kind of footwear material bonding sheet according to claim 1, it is characterised in that:The tackifier are rosin and its derivative
One kind in object, terpene resin and its modifier, Petropols and its hydride, copolymer, cumarone resin and its hydride or
The a variety of combination of person.
6. a kind of footwear material bonding sheet according to claim 5, it is characterised in that:The rosin and its derivative are that rosin is sweet
Either the rosin phenolic resin Petropols are C5 resins or C9 resins to grease.
7. a kind of footwear material bonding sheet according to claim 1, it is characterised in that:The Huang of the resistance to phenol agent be low volatility acid or
One or more combinations of sulfo group acid derivative.
8. a kind of footwear material bonding sheet according to claim 7, it is characterised in that:The low volatility acid is citric acid, grass
Acid or tartaric acid.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810060283.7A CN108329850A (en) | 2018-01-22 | 2018-01-22 | Shoe material adhesive sheet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810060283.7A CN108329850A (en) | 2018-01-22 | 2018-01-22 | Shoe material adhesive sheet |
Publications (1)
Publication Number | Publication Date |
---|---|
CN108329850A true CN108329850A (en) | 2018-07-27 |
Family
ID=62925500
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810060283.7A Pending CN108329850A (en) | 2018-01-22 | 2018-01-22 | Shoe material adhesive sheet |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN108329850A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109679557A (en) * | 2018-11-30 | 2019-04-26 | 江苏和和新材料股份有限公司 | A kind of insole environment-friendly type solidifies TPU hot melt adhesive film and its production method slowly |
CN109679558A (en) * | 2018-11-30 | 2019-04-26 | 江苏和和新材料股份有限公司 | The naked film of footwear material hot melt adhesive, sandwich insole and production method using it |
CN110856563A (en) * | 2018-02-13 | 2020-03-03 | 陈志勇 | Hot melt adhesive film composition and method for manufacturing shoe sole |
US20210037916A1 (en) * | 2017-02-23 | 2021-02-11 | Nike, Inc. | Debondable adhesives and uses thereof |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210037916A1 (en) * | 2017-02-23 | 2021-02-11 | Nike, Inc. | Debondable adhesives and uses thereof |
US11717053B2 (en) * | 2017-02-23 | 2023-08-08 | Nike, Inc. | Debondable adhesives and uses thereof |
CN110856563A (en) * | 2018-02-13 | 2020-03-03 | 陈志勇 | Hot melt adhesive film composition and method for manufacturing shoe sole |
US11779079B2 (en) | 2018-02-13 | 2023-10-10 | National Cheng Kung University | Composition of hot-melt adhesive film and method for producing shoe sole |
CN109679557A (en) * | 2018-11-30 | 2019-04-26 | 江苏和和新材料股份有限公司 | A kind of insole environment-friendly type solidifies TPU hot melt adhesive film and its production method slowly |
CN109679558A (en) * | 2018-11-30 | 2019-04-26 | 江苏和和新材料股份有限公司 | The naked film of footwear material hot melt adhesive, sandwich insole and production method using it |
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Application publication date: 20180727 |