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A main heel Baotou and its preparation method

A main heel and low-melting point fiber technology, which is applied in the field of main heel baotou and its preparation, can solve the problems that the durability of shape retention is not as good as that of leather, impairs sanitation, airtightness, etc., and achieves feasible technology, sufficient raw materials, and improved hygienic effect

Inactive Publication Date: 2015-08-05
THE QUARTERMASTER EQUIPMENT RESEARCH INSTITUTE OF THE GENERAL LOGISITIC DEPARTME
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The development and application of these two types of materials make up for the shortage of natural leather supply, but there are two defects in performance, that is, non-hygroscopic and air-tight, so that the wearer is prone to feel stuffy when wearing the shoes. Damage to the hygiene of shoes
Pulp board is another type of material currently used to prepare the main heel. It uses wood fiber as the main raw material. Compared with chemical sheets and hot-melt sheets, the hygroscopicity is improved, but it still does not have good air permeability.
Also, its shape retention is not as durable as leather, chemical sheets, and hot-melt sheets, so its applications are limited

Method used

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  • A main heel Baotou and its preparation method
  • A main heel Baotou and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1, manufacture the main heel toe cap with uniform composition

[0025] 1) Open hemp fiber, polyester and low-melting polyester (melting point is 120° C.), and mix them according to the mass ratio of 40 / 30 / 30 to obtain mixed cotton;

[0026] 2) The mixed cotton is laid, laminated and needle punched to obtain a surface density of 600g / m 2 mixed felt;

[0027] 3) Cut the mixed felt and hot press at 150°C to obtain a preformed main heel toe cap with a thickness of 0.3mm;

[0028] 4) Edge the edge according to the width and thickness of the edge required for shoemaking, and then place it in an oven at a temperature of 130°C until it is basically softened, then take it out, carry out the shoe upper forming operation and the subsequent shoemaking process, that is, the secondary Molded main heel toe cap with uniform components.

[0029] In this example, the hardness of the mixed felt used to prepare the main heel cap is tested according to GB / T2411-2008, reaching ...

Embodiment 2

[0031] Embodiment 2, the manufacture of the main and toe cap with non-uniform components

[0032] 1) Open hemp fiber, polyester and low-melting polyester (melting point 120°C) and mix them in a mass ratio of 30 / 30 / 40 to obtain blended cotton;

[0033] 2) The mixed cotton is laid, laminated and needle-punched to obtain a surface density of 250-300g / m 2 mixed felt;

[0034] 3) Adjust the fiber ratio, repeat step 1) and step 2), and manufacture three kinds of mixed mats with fiber mass fractions of 40 / 30 / 30 and 50 / 25 / 25 respectively;

[0035] 4) Laminate the three kinds of mixed felts prepared above according to the order of natural fiber content from less to more, to obtain mixed felts with non-uniform components;

[0036] 5) Cut the laminated mixed felt and hot press at 120°C to obtain a preformed main heel cap with a thickness of 2.5 mm;

[0037] 6) Edge the edge according to the width and thickness of the edge required for shoemaking, and then place it in an oven at a temp...

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Abstract

The invention discloses a main heel toe cap and a preparation method thereof. The preparation method comprises the following steps: mixing natural fibers, polyester fibers and low-melting-point fibers to obtain mixed cotton; lapping, laminating and needling the mixed cotton to obtain a mixed felt; and hotly pressing and trimming the mixed felt to obtain the preformed main heel toe cap. The preparation method has the following benefits: 1) the main heel toe cap has the moisture absorption breathability of the leather main heel toe cap, thereby being favorable for improving the sanitation of shoes; 2) raw materials are sufficient and a process is feasible, so that the demand of large-scale industrial production can be met; and 3) the pre-shaped main heel toe cap can be shaped for the second time, so that a shoe and boot last design effect can be satisfactorily reflected and the pre-shaped main heel toe cap can meet the requirements of various last designs.

Description

technical field [0001] The invention relates to a main heel Baotou and a preparation method thereof. Background technique [0002] The main heel cap is an important part of the design of the leather shoe last in the production of leather shoes. Existing main heel toe cap materials include leather, paper pulp, chemical fiber board etc. for protective shoes, its toe cap adopts steel toe cap or engineering plastics toe cap with anti-smashing function. Leather is the earliest main heel toe material. It has good moisture absorption and air permeability, which helps to keep feet dry. However, with the improvement of people's living standards, its supply is far from meeting production needs. In this context, chemical sheets and hot-melt sheets have been developed and become the most important materials for the main heel and toe cap. They use synthetic fiber as the skeleton material and benzene sol or hot melt adhesive as the bonding material. In the shoe-making process, the resi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A43B23/08D04H1/4382D04H1/46D04H1/542
Inventor 吴毅辉严自力张华秦蕾梁高勇王修行
Owner THE QUARTERMASTER EQUIPMENT RESEARCH INSTITUTE OF THE GENERAL LOGISITIC DEPARTME
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