CN111976182A - Sole film laminating method - Google Patents
Sole film laminating method Download PDFInfo
- Publication number
- CN111976182A CN111976182A CN202010818733.1A CN202010818733A CN111976182A CN 111976182 A CN111976182 A CN 111976182A CN 202010818733 A CN202010818733 A CN 202010818733A CN 111976182 A CN111976182 A CN 111976182A
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- CN
- China
- Prior art keywords
- film
- sole
- pressure machine
- mold
- mould
- 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.)
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Classifications
-
- 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
-
- 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
- B29D35/148—Moulds or apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/48—Wearing apparel
- B29L2031/50—Footwear, e.g. shoes or parts thereof
- B29L2031/504—Soles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The invention provides a sole film-covering method, which comprises the following steps in sequence: (1) placing the formed sole in a mould, wherein a positive pressure machine is arranged above the mould, a negative pressure machine is arranged below the mould, and a film is arranged above the sole and below the positive pressure machine; (2) baking the film at 90-110 ℃ for 6-12 seconds; (3) the mold operates to enable the sole to be close to the film, and meanwhile, the negative pressure machine operates to vacuumize, so that the film automatically covers and wraps the sole when the sole is in contact with the film; (4) the positive press runs to extrude the film and the sole to tightly adhere the film and the sole, and the operation is finished.
Description
Technical Field
The invention relates to the technical field of sole processing, in particular to a sole film laminating method.
Background
In the 20 th century, along with the development of the Chinese manufacturing industry, the Chinese shoe manufacturing industry develops rapidly and becomes the main shoe product manufacturing base in the world.
The sole is the main part of shoes, directly influences the quality of shoes, the comfort level and the experience of dress. In recent years, the requirements of people on soles gradually develop towards the directions of wear resistance, light weight, skid resistance, pollution resistance, buffering property and the like. The Polyurethane (PU) is a microporous elastomer between rubber and plastic as a popular sole material, is a microporous elastic structure containing open pores, has the diameter of the pores of 0.01-0.1mm, the free foaming density of 0.25-0.35, usually has a self-skinning of 1-2mm, has excellent rebound resilience and great energy absorption capacity, has the wear resistance of more than 6 times that of the rubber, and has the characteristics of light flexibility, heat preservation, oil resistance, flex resistance and the like.
However, the PU sole is generally formed by a polyurethane bi-component liquid reaction forming process, and the problems of bubbles, material shortage, foaming lines, capillary pores and the like often occur in the process, so that the production quality of the sole is not over-critical, and the requirements of producers can not be met.
In order to solve the problem, the Chinese patent of invention CN201610824246.x provides a PU sole film-covering forming process, firstly, film paper is flatly placed on a bottom die of a die, a middle frame is pressed to cover the bottom die, and a hand buckle is fastened for fixing; then, vacuumizing the inner cavity of the mold to enable the film paper to be completely attached to the bottom mold; heating the mould to make the temperature of the mould reach 60-70 ℃; and finally, pouring polyurethane foaming stock solution into the mold cavity to foam and form the polyurethane foaming stock solution in the mold cavity, and cooling and demolding to obtain the film-coated PU foamed sole. According to the scheme, the film is covered outside the shoe material in the process of forming the sole, and bubbles, foaming lines and pores are covered on the surface of the formed sole through the film.
However, this technique is only applicable to a process of molding a solid sole from a liquid raw material, and is not applicable to a film of an already molded solid sole. Therefore, a new method for coating the sole is desired to be applied to various types of formed sole coatings.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a sole film-coating method, which solves the problem that the existing film-coating method is only suitable for the process of forming a solid sole by using liquid raw materials, and provides the method for coating the film on the solid sole, which is not only suitable for the film coating of the formed PU shoe material, but also suitable for the film coating of soles made of any materials, improves the production quality of the soles and meets the requirements of producers.
The technical scheme of the invention is as follows: a sole film-coating method comprises the following steps in sequence: (1) placing the formed sole in a mould, wherein a positive pressure machine is arranged above the mould, a negative pressure machine is arranged below the mould, and a film is arranged above the sole and below the positive pressure machine;
(2) baking the film at 90-110 ℃ for 6-12 seconds;
(3) the mold operates to enable the sole to be close to the film, and meanwhile, the negative pressure machine operates to vacuumize, so that the film automatically covers and wraps the sole when the sole is in contact with the film;
(4) the positive press runs to extrude the film and the sole to tightly adhere the film and the sole, and the operation is finished.
Furthermore, the sole film-coating method also comprises a pretreatment step, wherein surface pollutants are removed from the outer surface of the formed sole, and a viscose agent is sprayed.
Furthermore, the film coating method for the sole has the advantages that the film is baked at the baking temperature of 100 ℃ for 8-10 seconds.
Furthermore, the film is printed with patterns by the sole film laminating method.
Further, in the sole film laminating method, the film is a PU film or a TPU film, and the thickness is 0.025-0.045 mm.
Furthermore, the vacuum degree of the vacuumization of the sole film covering method is maintained within the range of 0.05-0.lmbar.
Further, in the step (1), a negative pressure machine can be arranged above the mould, and a positive pressure machine is arranged below the mould, or the film is arranged below the sole and between the positive pressure machines.
The invention has the beneficial effects that: the sole film coating method has at least one of the following advantages
The invention provides a method for coating a film on the surface of a solid shoe material, which can coat a film on a formed sole made of any material.
The invention increases the wear resistance of the sole by coating the film on the surface of the sole, prevents the sole from being polluted, and improves the deterioration and yellowing resistance of shoe materials.
The film of the invention is printed with patterns, and the surface of the sole is provided with various patterns through the film covering.
The method for coating the film on the surface of the solid shoe material can cover flaws such as air holes, gaps, scratches and the like on the surface of the sole, so that the surface of the sole is attractive.
Detailed Description
In order to make the object, technical solution and technical effect of the present invention more apparent, the present invention will be further described with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The first embodiment is as follows: a sole film-coating method comprises the following steps in sequence:
(1) placing the formed sole in a mould, wherein a positive pressure machine is arranged above the mould, a negative pressure machine is arranged below the mould, and a film is arranged above the sole and below the positive pressure machine;
(2) baking the film at the baking temperature of 90 ℃ for 12 seconds;
(3) the mold operates to enable the sole to be close to the film, and meanwhile, the negative pressure machine operates to vacuumize, so that the film automatically covers and wraps the sole when the sole is in contact with the film;
(4) the positive press runs to extrude the film and the sole to tightly adhere the film and the sole, and the operation is finished.
Example two: a sole film-coating method comprises the following steps in sequence:
(1) pretreatment: removing surface pollutants from the outer surface of the formed sole, and spraying adhesive;
(2) placing the pretreated sole in a mold, arranging a positive pressure machine above the mold, arranging a negative pressure machine below the mold, and placing the film above the sole and below the positive pressure machine; the film is a TPU film, and the thickness is 0.045 mm;
(3) baking the film at 100 ℃ for 10 seconds;
(4) the mold operates to enable the sole to be close to the film, and meanwhile, the negative pressure machine operates to vacuumize, the vacuum degree is maintained at 0.05-0.lmbar, so that the film automatically covers and wraps the sole when the sole is in contact with the film;
(5) the positive press runs to extrude the film and the sole to tightly adhere the film and the sole, and the operation is finished.
Example three: a sole film-coating method comprises the following steps in sequence:
(1) pretreatment: removing surface pollutants from the outer surface of the formed sole, and spraying adhesive;
(2) placing the pretreated sole in a mold, arranging a positive press above the mold, arranging a negative press below the mold, placing a film above the sole and below the positive press, wherein the film is a PU film, and patterns are printed on the film, and the thickness of the film is 0.025 mm;
(3) baking the film at the baking temperature of 100 ℃ for 8 seconds;
(4) the mold operates to enable the sole to be close to the film, and meanwhile, the negative pressure machine operates to vacuumize, the vacuum degree is maintained at 0.05-0.lmbar, so that the film automatically covers and wraps the sole when the sole is in contact with the film;
(5) the positive press runs to extrude the film and the sole to tightly adhere the film and the sole, and the operation is finished.
Example four: a sole film-coating method comprises the following steps in sequence:
(1) pretreatment: removing surface pollutants from the outer surface of the formed sole, and spraying adhesive;
(2) placing the pretreated sole in a mold, arranging a positive press above the mold, arranging a negative press below the mold, placing a thin film above the sole and below the positive press, wherein the thin film is a TPU film, and patterns are printed on the thin film, and the thickness of the thin film is 0.035 mm;
(3) baking the film at the baking temperature of 110 ℃ for 6 seconds;
(4) the mold operates to enable the sole to be close to the film, and meanwhile, the negative pressure machine operates to vacuumize, the vacuum degree is maintained at 0.05-0.lmbar, so that the film automatically covers and wraps the sole when the sole is in contact with the film;
(5) the positive press runs to extrude the film and the sole to tightly adhere the film and the sole, and the operation is finished.
Example five: a sole film-coating method comprises the following steps in sequence:
(1) pretreatment: removing surface pollutants from the outer surface of the formed sole, and spraying adhesive;
(2) placing the pretreated sole in a mold, arranging a negative pressure machine above the mold, arranging a positive pressure machine below the mold, arranging a thin film above the sole, arranging a TPU film below the negative pressure machine, and printing patterns on the thin film with the thickness of 0.035 mm;
(3) baking the film at 105 ℃ for 10 seconds;
(4) the mold operates to enable the sole to be close to the film, and meanwhile, the negative pressure machine operates to vacuumize, the vacuum degree is maintained at 0.05-0.lmbar, so that the film automatically covers and wraps the sole when the sole is in contact with the film;
(5) the positive press runs to extrude the film and the sole to tightly adhere the film and the sole, and the operation is finished.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the present invention pertains, the architecture form can be flexible and varied without departing from the concept of the present invention, and a series of products can be derived. But rather a number of simple derivations or substitutions are made which are to be considered as falling within the scope of the invention as defined by the appended claims.
Claims (7)
1. A method for coating a film on a sole of a shoe, comprising the following steps carried out in sequence:
(1) placing the formed sole in a mould, wherein a positive pressure machine is arranged above the mould, a negative pressure machine is arranged below the mould, and a film is arranged above the sole and below the positive pressure machine;
(2) baking the film at 90-110 ℃ for 6-12 seconds;
(3) the mold operates to enable the sole to be close to the film, and meanwhile, the negative pressure machine operates to vacuumize, so that the film automatically covers and wraps the sole when the sole is in contact with the film;
(4) the positive press runs to extrude the film and the sole to tightly adhere the film and the sole, and the operation is finished.
2. The method of claim 1, further comprising a pre-treatment step of removing surface contaminants from the outer surface of the molded shoe sole and spraying a binder.
3. The method for coating a shoe sole according to claim 1, wherein the film is baked at a baking temperature of 100 ℃ for 8 to 10 seconds.
4. The method of laminating soles according to claim 1, characterized in that the film is printed with a pattern.
5. A method of laminating shoe soles according to claim 1, characterized in that said film is a PU film or a TPU film, having a thickness of between.025 mm and 0.045 mm.
6. The method of coating a shoe sole according to claim 1, wherein the degree of vacuum of the evacuation is maintained in the range of 0.05-0. lmbar.
7. The method according to claim 1, wherein in step (1), a negative pressure machine is disposed above the mold, a positive pressure machine is disposed below the mold, or the film is disposed below the sole and between the positive pressure machines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010818733.1A CN111976182A (en) | 2020-08-14 | 2020-08-14 | Sole film laminating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010818733.1A CN111976182A (en) | 2020-08-14 | 2020-08-14 | Sole film laminating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111976182A true CN111976182A (en) | 2020-11-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010818733.1A Pending CN111976182A (en) | 2020-08-14 | 2020-08-14 | Sole film laminating method |
Country Status (1)
| Country | Link |
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| CN (1) | CN111976182A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW533126B (en) * | 2002-04-03 | 2003-05-21 | Pou Chen Corp | Method for integrally forming shoesoles |
| CN105666908A (en) * | 2016-02-01 | 2016-06-15 | 孙维忠 | Sole membrane absorption molding method |
| CN107898060A (en) * | 2017-11-14 | 2018-04-13 | 阮志坚 | A kind of viscous sole processing unit (plant) of heating in vacuum plating and method |
| KR20190007555A (en) * | 2017-07-12 | 2019-01-23 | 한국기계연구원 | Induction heating apparatus, manufacturing method thereof, Facility and method for manufacturing shoes using the same |
| CN208808082U (en) * | 2018-06-22 | 2019-05-03 | 胜利油田鸿胜石油工程有限责任公司 | A kind of intelligent shoe bottom laminating machine |
-
2020
- 2020-08-14 CN CN202010818733.1A patent/CN111976182A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW533126B (en) * | 2002-04-03 | 2003-05-21 | Pou Chen Corp | Method for integrally forming shoesoles |
| CN105666908A (en) * | 2016-02-01 | 2016-06-15 | 孙维忠 | Sole membrane absorption molding method |
| KR20190007555A (en) * | 2017-07-12 | 2019-01-23 | 한국기계연구원 | Induction heating apparatus, manufacturing method thereof, Facility and method for manufacturing shoes using the same |
| CN107898060A (en) * | 2017-11-14 | 2018-04-13 | 阮志坚 | A kind of viscous sole processing unit (plant) of heating in vacuum plating and method |
| CN208808082U (en) * | 2018-06-22 | 2019-05-03 | 胜利油田鸿胜石油工程有限责任公司 | A kind of intelligent shoe bottom laminating machine |
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| PB01 | Publication | ||
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Application publication date: 20201124 |
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| RJ01 | Rejection of invention patent application after publication |