CN111358115A

CN111358115A - Shoe with DuPont paper as vamp and production method thereof

Info

Publication number: CN111358115A
Application number: CN202010325908.5A
Authority: CN
Inventors: 徐钦
Original assignee: Wenzhou Bobo International Trade Co ltd; Wenzhou Representative Office Of Sweden Lixin Far East Co ltd
Current assignee: Wenzhou Bobo International Trade Co ltd; Wenzhou Representative Office Of Sweden Lixin Far East Co ltd
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2020-07-03

Abstract

A shoe with DuPont paper as its upper is composed of a shoe upper made of DuPont paper and a sole fixed to the sole. The advantage is that, under optimum conditions, burning Tyvek produces water and carbon dioxide and leaves substantially no residue to be disposed of. Landfills were made with Tyvek @, which did not penetrate into groundwater because it was chemically inert and did not contain a binder. The vamp made of Dupont Tyvek has the advantages of water resistance, ventilation, bending resistance, aging resistance and the like. Meanwhile, the method is beneficial to environmental protection.

Description

Shoe with DuPont paper as vamp and production method thereof

Technical Field

The invention relates to the field of shoes, in particular to a shoe with DuPont paper as a vamp and a production method thereof.

Background

The main materials of the present shoe upper include animal leather, artificial leather, chemical fiber cloth, etc. The animal leather mainly comprises cow leather, sheep leather, deer leather and the like, has few sources and is not easy to purchase. Each piece has color difference, so that the needle cutting machine is not easy to cut. Although the artificial leather can be purchased in large quantities and has uniform color, the artificial leather is airtight, does not absorb moisture, and is easy to become brittle and easy to deform at low temperature. Although the chemical fiber textile material is light and soft, the air permeability is not good. The waterproof performance of the above materials is also not good. The production process of animal leather, artificial leather and chemical fiber materials is easy to produce pollution, and the finished product is difficult to degrade and is unfavorable for the environment. The material itself often contains elements that are not beneficial to human health. For example, hexavalent chromium and other chemical elements which are not beneficial to human bodies are easily generated in the tanning process of animal leather. The control requirement on the safety quality of the product is improved.

Disclosure of Invention

The invention aims to provide an environment-friendly, degradable, easily-corroded and reproducible shoe with a DuPont paper vamp and a production method of the shoe with the DuPont paper vamp, so as to solve the problems in the prior art.

The technical scheme provided by the invention is as follows:

a shoe with DuPont paper as its upper is composed of a shoe upper made of DuPont paper and a sole fixed to the sole.

Further, the sole is made of a corn starch composite material.

Further, the corn starch composite material comprises corn starch, injection glue and raw material additives.

Furthermore, the corn starch accounts for 70% of the total mass, the injection glue accounts for 24% of the total mass, and the raw material additive accounts for 6% of the total mass.

Furthermore, the injection glue is styrene, and the raw material additive is a propylene glycol synergist.

The invention also provides a production method of the shoe with the DuPont paper as the vamp.

A method for producing shoes with DuPont paper as uppers comprises the following steps:

preparing a vamp;

carrying out thermosetting offset printing on the Tyvek Dupont paper roll, and cutting the Dupont paper roll into a vamp unfolding state shape;

preparing a sole;

mixing corn starch accounting for 70 percent of the total mass, styrene accounting for 24 percent of the total mass and propylene glycol synergist accounting for 6 percent of the total mass, uniformly stirring, putting into a fermentation cylinder for fermentation at the fermentation temperature of 170-195 degrees until the density is 1.0-0.85 and the moisture content is less than or equal to 1, taking the mixture as an injection molding raw material, injecting the injection molding raw material into an injection mold at the melt flow rate of 10.5g/min, and molding in the mold to obtain the sole.

And step two, fixing the vamp on the sole.

Further, the injection molding raw material was injected into the injection mold through an injection nozzle having a temperature of 180 °.

Furthermore, the temperature of the thermosetting offset printing is less than or equal to 79 ℃.

Further, the temperature of the die is 5-10 deg.

The invention has the advantages that:

the upper material of the patent application, DuPont Tyvek, is a high-tech material made of high-density polyethylene (HDPE) by a DuPont patent flash evaporation method, and has pure components and no any adhesive or supplement. The waterproof breathable fabric can be waterproof and breathable, combines the advantages of three materials of paper, cloth and plastic, and has the characteristics of high strength, light weight, softness, smoothness, low possibility of fluffing, water resistance, breathability, acid and alkali resistance, static resistance, folding resistance, wear resistance, aging resistance, environmental friendliness and the like. The recycled Tyvek materials can be used for manufacturing decorative plastic profiles, lawn appliances, picnic tables and landscaping forest trees.

Under optimum conditions, Tyvek incinerated will produce water and carbon dioxide with substantially no residue left to be disposed of. Landfills were made with Tyvek @, which did not penetrate into groundwater because it was chemically inert and did not contain a binder. The vamp made of Dupont Tyvek has the advantages of water resistance, ventilation, bending resistance, aging resistance and the like. Meanwhile, the method is beneficial to environmental protection.

Detailed Description

A shoe with DuPont paper as its upper is made up of the composite DuPont paper material and conventional material (artificial PU) through proportional mixing, and features high resistance to deformation, and high strength. The dupont paper retains strength and flexibility at temperatures as low as-73 ℃. DuPont paper starts to shrink at around 104 ℃ and starts to melt at 135 ℃. In web thermal set offset printing processes, the oven temperature must not exceed 79 ℃. The dupont paper thickness can be determined by the design of the shoe and the thickness of the composite material, and thus there is no limitation on the paper thickness as a whole. However, the dupont paper is the most different from other materials, and the material itself has no elasticity, so that the style of some shoes has certain limitation, and the style like the big end is difficult to be arranged and tilted.

And after the vamp is finished, the sole is injected to the vamp to finish the manufacturing of the shoe. The DuPont Tyvek vamp series products are also environment-friendly organic materials for the outsole, and mainly comprise 70% of corn starch, 24% of injection glue and 6% of raw material additives. Under the condition that the temperature is 170-195 ℃, corn flour is fermented in a fermentation barrel and then transferred to a machine table mold, and bottom mold injection molding is completed according to the melt flow rate of 10.5g/min, the nozzle temperature of 180 ℃ and the mold temperature of 5-10 ℃. In the production process, the pollution is reduced by 80 percent compared with the original TPR injection molded outsole. The integral environmental protection significance of the shoe is greatly improved.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore intended that the present embodiments be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A shoe with DuPont paper as a vamp is characterized by comprising the vamp and a sole, wherein the vamp is fixedly connected to the sole and is made of DuPont paper.

2. The dupont paper shoe upper of claim 1, wherein the sole is made of a corn starch composite material.

3. The dupont paper shoe upper of claim 2, wherein the cornstarch composite components comprise cornstarch, an injection glue, and a raw material additive.

4. The shoe with the dupont paper as the upper according to claim 3, wherein the corn starch accounts for 70% of the total mass, the injection glue accounts for 24% of the total mass, and the raw material additives account for 6% of the total mass.

5. The shoe with the dupont paper as the vamp according to claim 4, wherein the injection glue is styrene, and the raw material additive is a propylene glycol extender.

6. A method for producing shoes with DuPont paper as uppers is characterized by comprising the following steps:

step one, preparing a vamp;

preparing a sole;

mixing corn starch accounting for 70% of the total mass, styrene accounting for 24% of the total mass and propylene glycol synergist accounting for 6% of the total mass, uniformly stirring, putting into a fermentation cylinder for fermentation at the fermentation temperature of 170-195 degrees until the density is 1.0-0.85 and the moisture content is less than or equal to 1, taking the mixture as an injection molding raw material, injecting the injection molding raw material into an injection mold at the melt flow rate of 10.5g/min, and forming in the mold to obtain a sole;

and step two, fixing the vamp on the sole.

7. The method for manufacturing a dupont paper shoe upper according to claim 6, wherein the injection molding material is injected into the injection mold through an injection nozzle, and the injection nozzle temperature is 180 °.

8. The method for manufacturing shoes with DuPont paper as vamp as claimed in claim 6, wherein the thermosetting offset printing temperature is less than or equal to 79 ℃.

9. A method for manufacturing a shoe upper with DuPont paper according to claim 6, wherein the temperature of the mold is 5 ° to 10 °.