CN106235513B - Outsole, method for attaching outsole to midsole and manufactured sole - Google Patents
Outsole, method for attaching outsole to midsole and manufactured sole Download PDFInfo
- Publication number
- CN106235513B CN106235513B CN201610778674.3A CN201610778674A CN106235513B CN 106235513 B CN106235513 B CN 106235513B CN 201610778674 A CN201610778674 A CN 201610778674A CN 106235513 B CN106235513 B CN 106235513B
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- outsole
- film
- midsole
- attaching
- glue
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Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/02—Soles; Sole-and-heel integral units characterised by the material
- A43B13/12—Soles with several layers of different materials
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/02—Soles; Sole-and-heel integral units characterised by the material
- A43B13/12—Soles with several layers of different materials
- A43B13/122—Soles with several layers of different materials characterised by the outsole or external layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D35/00—Producing footwear
- B29D35/12—Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
- B29D35/122—Soles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D35/00—Producing footwear
- B29D35/12—Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
- B29D35/14—Multilayered parts
- B29D35/142—Soles
Abstract
The invention provides a outsole which sequentially comprises an outsole base layer, a rubber stock solution film layer compounded on the outsole base layer and a release film layer compounded on the rubber stock solution film layer. The surface of the outsole is flat and clean, and complex surface treatment procedures such as polishing, adding a treating agent and the like are omitted. The invention also discloses a method for jointing the outsole and the insole, wherein a hardening glue type film is added in the jointing process, so that the caking property is better, the after-treatment processes of gluing, glue spraying, pressing and the like for increasing the jointing property are not needed when the outsole is jointed with the insole, the cost of a mould and time is reduced, and the production efficiency is greatly improved. Meanwhile, the invention also discloses a sole manufactured by the method for attaching the outsole and the midsole, and the outsole and the midsole are tightly attached, attractive and durable.
Description
Technical Field
The invention belongs to the field of sole forming, and particularly relates to an outsole, a method for attaching the outsole to a midsole and a sole manufactured by the method.
Background
The general sole can be divided into two types: the first is a sole which is directly contacted with the ground and has the antiskid function; the other type is a middle sole which can disperse the impact brought by the body weight and can relieve the impact force of the knee. In order to attach the outsole and the midsole, various treatment agents are required to be used for treatment, and the outsole and the midsole are attached by heating after the glue brushing (gluing and glue spraying) process, so that a lot of harmful substances can be circulated, the environment pollution is large, and the physical properties of the sole can be reduced, such as the phenomena of thermal yellowing, easy hydrolysis, adhesive part degumming and the like.
The existing method for attaching the outsole and the midsole comprises the following steps: the insole die is attached by injecting PU material after the TPU film is formed in a vacuum mode, and the method has the following defects: (1) the manufacturing cost of a complex die (vacuum die) for manufacturing the PU die is high during production; (2) the bonding tension of the film and the outsole is not enough; (3) physical properties of the film are low due to heating, for example, the film has poor tensile force, and the film is discolored and yellowed; (4) the process is complex, including the process of putting the membrane, the clean management of the membrane surface, membrane heating, etc., the product must be dried and pressed again after shaping; (5) manpower is wasted.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the outsole which is smooth in surface and easy to be attached to the midsole, the method for attaching the outsole to the midsole and the manufactured sole. Before the outsole is attached to the midsole, the working procedures of polishing, treatment by adding a treating agent and the like are not needed; the method for laminating the outsole and the midsole can simplify the working procedures and improve the production efficiency; the sole prepared by the invention has the advantages of tight fit of the outsole and the midsole, attractive appearance and durability.
The technical scheme adopted by the invention is as follows: the outsole sequentially comprises an outsole base layer, a rubber stock solution film layer compounded on the outsole base layer, and a release film layer compounded on the rubber stock solution film layer.
The rubber collagen liquid film can enable the surface of the outsole to be flat and clean, complex pretreatment processes are omitted, the outsole can be attached more tightly and the attaching force is larger when the outsole is attached to the midsole, and the rubber collagen liquid film material used in the invention can be obtained from the market, such as F1-1500 produced by hen kel company. The release film is a protective film and mainly plays a role in protecting the outsole and the surface of the rubber stock solution film layer and keeping the outsole and the rubber stock solution film layer clean and flat.
Preferably, the thickness of the rubber stock solution film layer is 0.05-0.08 mm. The applicant has found through a great deal of attempts that the rubber stock solution film with the thickness is low in cost, attractive in appearance and good in bonding force.
Meanwhile, the invention provides a preparation method of the outsole, which comprises the following steps: injecting the outsole base layer raw material into an outsole mold, then placing a rubber collagen liquid film, and molding to obtain the outsole.
Preferably, the molding manner is injection molding.
The invention also provides a method for attaching the outsole and the midsole, which comprises the following steps:
1) tearing the release film of the outsole, and placing the outsole in the midsole mold;
2) placing a hardening glue film in the insole mould with the outsole, and attaching the rubber stock solution film layer of the outsole and the hardening glue film;
3) injecting PU raw materials into the midsole mould.
Preferably, in the step 1), after the outsole is placed in the midsole mold, the step of heating the surface of the outsole for 2-3 minutes at 70-80 ℃ is further included.
Preferably, the curable glue film in step 2) comprises a TPU film and a glue film compounded on the TPU film. The TPU film is a conventional choice in the shoe making industry, and the glue (raw material) of the glue type film on the TPU film is JS-OTW produced by the company of Sempal Chemical Co. The conventional TPU film is compounded with the glue type film, so that the adhesive force between the outsole and the midsole is strong, the outsole and the midsole are tightly attached, the glue type film has strong hydrolysis resistance and yellowing resistance, and the prepared sole is more attractive and durable.
In order to reduce the cost and ensure the sealing property and the bonding property, preferably, the thickness of the curable glue film in the step 2) is 0.06-0.1 mm. When the thickness of the hardening glue film is more than 0.1mm, the cost is higher; when the thickness of the hardening glue film is less than 0.06mm, the sealing property and the bonding property are poor, the phenomenon that PU raw materials leak out can be caused, and the attractiveness of the formed sole is influenced.
More preferably, the thickness of the TPU film is 0.04-0.06 mm, and the thickness of the glue type film on the TPU film is 0.02-0.04 mm. Through a large number of experiments, the applicant finds that when the TPU film and the glue water type film on the TPU film are in the range, the molded sole can achieve the purposes of beauty, cost and uniform cohesiveness.
Preferably, the step 2) is performed by vacuum forming to realize the adhesion of the outsole and the hardening glue film.
Preferably, before the curable glue film in the step 2) is placed in the midsole mold, the step of preserving heat at 70-80 ℃ is further included.
In the existing method for attaching the outsole and the midsole, a TPU film is generally heated to more than 200 ℃, so that the sole is deformed and has poor aesthetic property, and the problems of reduced physical properties of the sole, such as thermal yellowing phenomenon, easy hydrolysis, adhesive part degumming and the like, can also be caused; the invention only needs the step of keeping the temperature of the hardening glue film at 70-80 ℃ without heating, can better prevent the sole from deforming, and ensures the beauty and the durability of the sole.
The invention also provides a sole manufactured by the method for attaching the outsole and the midsole. The sole prepared by the invention has better cohesiveness between the outsole and the midsole, is tightly attached, does not have the phenomena of degumming, deformation, sole eversion, shrinkage and the like, and is beautiful and durable.
Compared with the prior art, the invention has the beneficial effects that:
the outsole comprises the rubber collagen liquid film and the release film, so that the surface of the outsole can be smooth and clean, the surface adhesion is good, and complicated surface treatment procedures such as polishing, adding a treating agent and the like are omitted; and because the hardening glue film is added in the process of laminating the outsole and the midsole, the surface cohesiveness is better, the laminating force of the outsole and the midsole is strong, and post-treatment procedures such as gluing, glue spraying, pressing and the like for improving the laminating property are not needed during laminating. Therefore, the method for laminating the outsole and the midsole has the advantages of simple process, low cost of the mold and time and greatly improved production efficiency.
Because the sclerosant glue film is added in the laminating process of the outsole and the insole, and the step of high-temperature heating is not adopted in the laminating process, the prepared sole has good hydrolysis resistance and yellowing resistance, the cohesiveness of the outsole and the insole is good, the laminating is tight, the degumming phenomenon can not occur, and the formed sole is more attractive and durable.
Detailed Description
To better illustrate the objects, aspects and advantages of the present invention, the present invention will be further described with reference to specific examples.
Example 1
In an embodiment of the outsole of the present invention, the outsole sequentially includes an outsole base layer, a rubber raw liquid film layer compounded on the outsole base layer, and a release film layer compounded on the rubber raw liquid film layer, the thickness of the rubber raw liquid film layer is 0.08mm, the rubber raw liquid film is made of F1-1500 manufactured by hen kel corporation, and the release film is a paper film protective film on the surface of the rubber raw liquid film.
The preparation method of the outsole in this embodiment is as follows: injecting the outsole base layer raw material into an outsole mold, then placing a rubber raw liquid film (a release film is arranged on the surface of the rubber raw liquid film), and performing injection molding to obtain the outsole.
A method for attaching the outsole to the midsole of this embodiment includes the following steps:
1) tearing the release film on the outsole, placing the outsole in a midsole mold, and heating the outsole surface at 70 ℃ for 3 minutes;
2) placing a 0.08mm hardening glue film which is insulated at 80 ℃ into the insole die with the outsole, and attaching the rubber stock solution film of the outsole and the hardening glue film through vacuum forming;
wherein the thickness of the TPU film is 0.05mm, the thickness of the glue type film on the TPU film is 0.03mm, the TPU film is selected conventionally, and the glue of the glue type film on the TPU film is JS-OTW produced by Sempal Chemical Co., Ltd;
3) injecting a PU raw material into the insole die, and perfectly attaching the outsole and the insole by using the foaming pressure and the foaming heat (180-200 ℃) of the PU raw material;
4) and when the foaming time is up, drawing the mold to complete the lamination of the outsole and the midsole.
A sole prepared by the method for attaching the outsole to the midsole of the embodiment; the sole outsole and the midsole have good cohesiveness, close fitting, good hydrolysis resistance and yellowing resistance, no degumming phenomenon, and the formed sole is more attractive and durable.
Example 2
In an embodiment of the outsole of the present invention, the outsole sequentially includes an outsole base layer, a rubber dope film layer compounded on the outsole base layer, and a release film layer compounded on the rubber dope film layer, the thickness of the rubber dope film layer is 0.05mm, the rubber dope film is made of F1-1500 manufactured by hen kel corporation, and the release film is a thin film protection film on the surface of the rubber dope film.
The preparation method of the outsole in this embodiment is as follows: injecting the outsole base layer raw material into an outsole mold, then placing a rubber raw liquid film (a release film is arranged on the surface of the rubber raw liquid film), and performing injection molding to obtain the outsole.
A method for attaching the outsole to the midsole of this embodiment includes the following steps:
1) tearing the release film on the outsole, placing the outsole in a midsole mold, and heating the outsole surface at 80 ℃ for 2 minutes;
2) placing a 0.06mm hardening glue film which is insulated at 70 ℃ into the insole mould with the outsole, and laminating the rubber stock solution film of the outsole and the hardening glue film through vacuum forming;
wherein the thickness of the TPU film is 0.04mm, the thickness of the glue type film on the TPU film is 0.02mm, the TPU film is selected conventionally, and the glue of the glue type film on the TPU film is JS-OTW produced by Sempal Chemical Co., Ltd;
3) injecting a PU raw material into the insole die, and perfectly attaching the outsole and the insole by using the foaming pressure and the foaming heat (180-200 ℃) of the PU raw material;
4) and when the foaming time is up, drawing the mold to complete the lamination of the outsole and the midsole.
A sole prepared by the method for attaching the outsole to the midsole of the embodiment; the sole outsole and the midsole have good cohesiveness, close fitting, good hydrolysis resistance and yellowing resistance, no degumming phenomenon, and the formed sole is more attractive and durable.
Example 3
In an embodiment of the outsole of the present invention, the outsole sequentially includes an outsole base layer, a rubber dope film layer compounded on the outsole base layer, and a release film layer compounded on the rubber dope film layer, the thickness of the rubber dope film layer is 0.065mm, the rubber dope film is made of F1-1500 produced by hen kel corporation, and the release film is a thin film protection film on the surface of the rubber dope film.
The preparation method of the outsole in this embodiment is as follows: injecting the outsole base layer raw material into an outsole mold, then placing a rubber raw liquid film (a release film is arranged on the surface of the rubber raw liquid film), and performing injection molding to obtain the outsole.
A method for attaching the outsole to the midsole of this embodiment includes the following steps:
1) tearing the release film on the outsole, placing the outsole in a midsole mold, and heating the outsole surface at 75 ℃ for 2.5 minutes;
2) placing a 0.1mm hardening glue film which is insulated at 75 ℃ into the insole mould with the outsole, and laminating the rubber stock solution film of the outsole and the hardening glue film through vacuum forming;
wherein the thickness of the TPU film is 0.06mm, the thickness of the glue type film on the TPU film is 0.04mm, the TPU film is a conventional choice, and the glue of the glue type film on the TPU film is JS-OTW produced by Sempal Chemical Co., Ltd;
3) injecting a PU raw material into the insole die, and perfectly attaching the outsole and the insole by using the foaming pressure and the foaming heat (180-200 ℃) of the PU raw material;
4) and when the foaming time is up, drawing the mold to complete the lamination of the outsole and the midsole.
A sole prepared by the method for attaching the outsole to the midsole of the embodiment; the sole outsole and the insole have good cohesiveness, close fitting and good yellowing resistance, the phenomenon of degumming can not occur, and the formed sole is more attractive and durable.
Example 4
This example is a comparative example of the outsole, the method of attaching the outsole to the midsole, and the sole made according to the present invention.
The outsole in the prior art is usually obtained by directly adding a matrix raw material into a mold for molding;
the method for integrally forming the conventional midsole and the outsole in the production process comprises the following steps:
(1) the surface of the outsole is subjected to pretreatment processes such as treatment by adding a treating agent, polishing, glue brushing and the like;
(2) putting the outsole into the midsole die;
(3) placing the film on the insole die;
(4) heating the film;
(5) the heated film is vacuumized;
(6) injecting PU material into the vacuum-absorbed insole die;
(7) the formed sole is heated and dried again;
(8) and (5) heating, drying and then performing pressing treatment by a pressing machine.
With this method there are the following disadvantages: (1) the pretreatment is complicated and tedious, and the treating agent pollutes the environment; (2) the manufacturing cost of a complex mold (vacuum mold) for manufacturing the insole mold is high during production; (3) the bonding tension of the film and the outsole is not enough; (4) physical properties of the film are low due to heating, for example, the film has poor tensile force, and the film is discolored and yellowed; (5) the process is complex, including the process of putting the membrane, the clean management of the membrane surface, membrane heating, etc., the product must be dried and pressed again after shaping; (6) manpower is wasted.
The outsole comprises the rubber collagen liquid film and the release film, so that the surface of the outsole can be smooth and clean, the surface adhesion is good, and complicated surface treatment procedures such as polishing, adding a treating agent and the like are omitted; and because the hardening glue film is added in the process of laminating the outsole and the midsole, the surface cohesiveness is better, the laminating force of the outsole and the midsole is strong, and post-treatment procedures such as gluing, glue spraying, pressing and the like for improving the laminating property are not needed during laminating. Therefore, the method for laminating the outsole and the midsole has the advantages of simple process, low cost of the mold and time and greatly improved production efficiency.
And because the hardening glue film is added in the process of laminating the outsole and the insole, and the step of high-temperature heating is not used in the laminating process, the prepared sole has good hydrolysis resistance and yellowing resistance, the adhesiveness of the outsole and the insole is good, the laminating is tight, the phenomena of degumming, deformation, sole eversion, shrinkage and the like can not occur, and the molded sole is more beautiful and durable.
Example 5
The sole prepared in the embodiment 1-3 is tested for the bonding force by using a universal tensile testing machine, the yellowing resistance is tested by UV lamp irradiation, and the test results are shown in the following table 1:
TABLE 1 test results of adhesion and yellowing resistance
As can be seen from Table 1, the outsole prepared by the invention has strong adhesion with the midsole and good yellowing resistance.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (3)
1. A method of conforming an outsole to a midsole, the method comprising the steps of:
1) tearing the release film of the outsole, and placing the outsole in the midsole mold; the outsole sequentially comprises an outsole base layer, a rubber stock solution film layer compounded on the outsole base layer and a release film layer compounded on the rubber stock solution film layer, wherein the thickness of the rubber stock solution film layer is 0.05-0.08 mm;
the outsole is prepared by the following method: injecting the raw materials of the outsole base layer into the outsole mold, then placing the rubber stock solution film layer, and injecting and pressing for molding;
2) placing a hardening glue film in the insole mould with the outsole, and attaching the rubber stock solution film layer of the outsole and the hardening glue film; the hardening glue film comprises a TPU film and a glue film compounded on the TPU film; the thickness of the TPU film is 0.04-0.06 mm, and the thickness of the glue type film on the TPU film is 0.02-0.04 mm;
3) injecting PU raw materials into the insole die;
and 2) before the hardening glue film is placed into the insole die in the step 2), the step of preserving heat at 70-80 ℃ is further included.
2. The method for attaching the outsole to the midsole of claim 1, wherein the step 1) of heating the outsole surface at 70 to 80 ℃ for 2 to 3 minutes is further included after the outsole is placed in the midsole mold.
3. A sole made by the method of attaching an outsole according to any of claims 1 to 2 to a midsole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610778674.3A CN106235513B (en) | 2016-08-31 | 2016-08-31 | Outsole, method for attaching outsole to midsole and manufactured sole |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610778674.3A CN106235513B (en) | 2016-08-31 | 2016-08-31 | Outsole, method for attaching outsole to midsole and manufactured sole |
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| CN106235513A CN106235513A (en) | 2016-12-21 |
| CN106235513B true CN106235513B (en) | 2019-12-31 |
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| CN110236247A (en) * | 2019-07-19 | 2019-09-17 | 劲霸男装（上海）有限公司 | A kind of application is mostly used the waterproof garment of adhesive tape |
| CN112109392A (en) * | 2020-09-14 | 2020-12-22 | 东莞市汇齐新材料有限公司 | Glued membrane suitable for PU fills at bottom of rubber |
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