CN100589966C - Making process of rain-proof shoe sheath of thermoplastic polyurethane film - Google Patents
Making process of rain-proof shoe sheath of thermoplastic polyurethane film Download PDFInfo
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- CN100589966C CN100589966C CN200610086097A CN200610086097A CN100589966C CN 100589966 C CN100589966 C CN 100589966C CN 200610086097 A CN200610086097 A CN 200610086097A CN 200610086097 A CN200610086097 A CN 200610086097A CN 100589966 C CN100589966 C CN 100589966C
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- shoe
- thermoplastic polyurethane
- shoe cover
- rain
- polyurethane film
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Abstract
The making process of rain-proof shoe sheath of thermoplastic polyurethane film includes the following steps: slicing; folding to form double layer sheet with closed bottom edge; locally heat sealingthe double layer sheet and cutting off the excessive parts to form shoe sheath blank; setting the blank on shoe tree; injecting thermoplastic polyurethane melt to partial surfaces of the blank to formstrengthening layer; demolding; heat fitting shoe string; and eliminating shoe tree to form the shoe sheath. The present invention has high strength, high wear resistance and good portability.
Description
Technical field:
The present invention relates to a kind of rain-proof shoe sheath, especially relate to a kind of preparation method of rain-proof shoe sheath of thermoplastic polyurethane film.Belong to rainproof apparatus technical field.
Background technology:
Rain-proof shoe sheath on the market has over one hundred kind at present, and characteristics and quality are respectively arranged.Wherein most of employing plastics, rubber, waterproof nylon cloth are made.The strength of materials and wearability are relatively poor.Because rain-proof shoe sheath is the outside that is enclosed within common old footwear, and is inside and outside all frayed.Often can only disposablely use.Other has fraction to adopt thickening to come reinforced bottom.Because the blocked up portability that causes in the relatively poor bottom of material wear ability descends.
Summary of the invention:
The objective of the invention is to overcome above-mentioned deficiency, the preparation method of strong, the portable rain-proof shoe sheath of thermoplastic polyurethane film of a kind of intensity height, wearability is provided.
The object of the present invention is achieved like this: a kind of preparation method of rain-proof shoe sheath of thermoplastic polyurethane film is characterized in that this method comprises following processing step:
Step 1, section: the single sheet that the rolling thermoplastic polyurethane film is cut into required size;
Step 2, doubling: with the upper and lower edge doubling of above-mentioned single sheet, form root edge sealing, apical margin and all uncovered double layer sheet of front and back lateral margin, the root edge sealing can make the shoe cover bottom seamless, and the apical margin opening forms the shoe cover oral area;
Step 3, hot synthetic type: severing during with above-mentioned double layer sheet localized heat contract, remove redundance, form that bottom and front and back are sealed, the shoe cover blank of the hollow that is similar to the socks shape of open top;
Step 4, lasting: the shoe cover blank is enclosed within on the shoe tree;
Step 5, injection moulding strengthen: the shoe cover blank bottom that will have shoe tree places in the mould, make shoe cover blank bottom as core, constitute die cavity between bottom outer rim and the mould inner edge, and in this die cavity, inject the thermoplastic polyurethane hot melt, make the equal injection moulding last layer of bottom, front and rear of shoe cover blank have the enhancement Layer that protrudes anti-skid design, make the shoe cover semi-finished product;
Step 6, demoulding;
Step 7, heat seal shoestring: shoestring in the trailing edge heat seal at shoe cover semi-finished product top, play simultaneously and strengthen the trailing edge effect;
Step 8, delasting: deviate from shoe tree and be the shoe cover finished product.
The inventive method is made easy, and equipment is simple, helps large-scale production.The thermoplasticity rain-proof shoe sheath of thermoplastic polyurethane film that adopts the present invention to make, easy to carry, dress is rapid, and wearability is good, and is durable in use.
The present invention selects for use the thermoplastic polyurethane film material (being called for short the TPU film) of high strength, high-wearing feature to make rain-proof shoe sheath.The thermoplastic polyurethane film material is a kind of water white elastomer, can dye and print, and can be made into water white rain-proof shoe sheath, also can be made into riotous with colour rain-proof shoe sheath.Thermoplastic polyurethane film material non-toxic, no plasticizer, pollution-free, molecular structure is simple, can not produce air pollution during the incinerator burning, and the material landfill is subjected to humidity and microbial action in soil, 3～5 years natural decomposition.No matter making, using, reclaiming, discardedly all environment had influence.
Description of drawings:
Fig. 1～6 are each process sequence diagram of rain-proof shoe sheath of thermoplastic polyurethane film of the present invention.
The specific embodiment:
The preparation method of rain-proof shoe sheath of thermoplastic polyurethane film of the present invention, this method comprises following processing step:
Step 1, section: the single sheet that the rolling thermoplastic polyurethane film is cut into required size;
Step 2, doubling:, form root edge sealing, apical margin and all uncovered double layer sheet of front and back lateral margin with the upper and lower edge doubling of above-mentioned single sheet;
Step 3, hot synthetic type: severing during with above-mentioned double layer sheet localized heat contract, remove redundance, form that bottom and front and back are sealed, the shoe cover blank of the hollow that is similar to the socks shape of open top, as Fig. 1;
Step 4, lasting: the shoe cover blank is enclosed within on the shoe tree, as Fig. 2;
Step 5, injection moulding strengthen: the shoe cover blank bottom that will have shoe tree places in the mould, make shoe cover blank bottom as core, constitute die cavity between bottom outer rim and the mould inner edge, and in this die cavity, inject the thermoplastic polyurethane hot melt, make the equal injection moulding last layer of bottom, front and rear of shoe cover blank have the enhancement Layer that protrudes anti-skid design, make the shoe cover semi-finished product, the enhancement Layer thickness that protrudes anti-skid design is at 1mm～3mm, as Fig. 3;
Step 6, demoulding are as Fig. 4;
Step 7, heat seal shoestring: shoestring in the trailing edge heat seal at shoe cover semi-finished product top, as Fig. 5, play simultaneously and strengthen the trailing edge effect;
Step 8, delasting: deviate from shoe tree and be the shoe cover finished product, as Fig. 6.
Claims (2)
1, a kind of preparation method of rain-proof shoe sheath of thermoplastic polyurethane film is characterized in that this method comprises following processing step:
Step 1, section: the single sheet that the rolling thermoplastic polyurethane film is cut into required size;
Step 2, doubling:, form root edge sealing, apical margin and all uncovered double layer sheet of front and back lateral margin with the upper and lower edge doubling of above-mentioned single sheet;
Step 3, hot synthetic type: severing during with above-mentioned double layer sheet localized heat contract, remove redundance, form that bottom and front and back are sealed, the shoe cover blank of the hollow of the socks shape of open top;
Step 4, lasting: the shoe cover blank is enclosed within on the shoe tree;
Step 5, injection moulding strengthen: the shoe cover blank bottom that will have shoe tree places in the mould, make shoe cover blank bottom as core, constitute die cavity between bottom outer rim and the mould inner edge, and in this die cavity, inject the thermoplastic polyurethane hot melt, make the equal injection moulding last layer of bottom, front and rear of shoe cover blank have the enhancement Layer that protrudes anti-skid design, make the shoe cover semi-finished product;
Step 6, demoulding;
Step 7, heat seal shoestring: shoestring in the trailing edge heat seal at shoe cover semi-finished product top;
Step 8, delasting: deviate from shoe tree and be the shoe cover finished product.
2, the preparation method of a kind of rain-proof shoe sheath of thermoplastic polyurethane film according to claim 1 is characterized in that protruding the enhancement Layer thickness of anti-skid design at 1mm～3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610086097A CN100589966C (en) | 2006-07-13 | 2006-07-13 | Making process of rain-proof shoe sheath of thermoplastic polyurethane film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610086097A CN100589966C (en) | 2006-07-13 | 2006-07-13 | Making process of rain-proof shoe sheath of thermoplastic polyurethane film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1887583A CN1887583A (en) | 2007-01-03 |
| CN100589966C true CN100589966C (en) | 2010-02-17 |
Family
ID=37576866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610086097A Expired - Fee Related CN100589966C (en) | 2006-07-13 | 2006-07-13 | Making process of rain-proof shoe sheath of thermoplastic polyurethane film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100589966C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107006936A (en) * | 2017-04-17 | 2017-08-04 | 洪看齐 | A kind of production technology of shoe cover |
| CN111471222A (en) * | 2020-05-12 | 2020-07-31 | 胡玉飞 | Novel shoe cover and preparation process thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0745476A1 (en) * | 1995-05-30 | 1996-12-04 | NORDICA S.p.A. | Method for obtaining a shoe, and shoe obtained with said method |
| CN1259324A (en) * | 1999-01-07 | 2000-07-12 | 陈启明 | Waterproof shoes and boots and its mfg. method |
| CN1475340A (en) * | 2002-08-12 | 2004-02-18 | 纪正贤 | Foamed shoe body formed by integral whole shaping method |
| CN2659196Y (en) * | 2003-11-28 | 2004-12-01 | 王建营 | Waterproof sanitary shoe cover |
-
2006
- 2006-07-13 CN CN200610086097A patent/CN100589966C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0745476A1 (en) * | 1995-05-30 | 1996-12-04 | NORDICA S.p.A. | Method for obtaining a shoe, and shoe obtained with said method |
| CN1259324A (en) * | 1999-01-07 | 2000-07-12 | 陈启明 | Waterproof shoes and boots and its mfg. method |
| CN1475340A (en) * | 2002-08-12 | 2004-02-18 | 纪正贤 | Foamed shoe body formed by integral whole shaping method |
| CN2659196Y (en) * | 2003-11-28 | 2004-12-01 | 王建营 | Waterproof sanitary shoe cover |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1887583A (en) | 2007-01-03 |
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