阅读说明：本技术 一种胶布材料热合成型方法 (Thermal synthesis molding method for adhesive tape material ) 是由 崔江舟 邢文平 杨景 郭佳敏 刘彦妮 金世婧 雷晓军 胡月 冯志军 王京 常慧芳 于 2021-09-15 设计创作，主要内容包括：本发明涉及防护材料技术领域,具体涉及一种胶布材料热合成型方法；采用热粘合成型机,通过加热系统将反应性热熔胶加热；然后通过流体泵将热熔胶喷涂到胶布上,喷涂后采用辊轮压合的方式将胶布粘接部位压合密实,固化即可；本发明首次将热熔胶应用于防护胶布材料的粘接成型,与传统冷粘工艺相比,具有成型效率高,无环境污染的优点,采用该方式后成型效率提高6-7倍以上,同时提高胶布成型过程中的粘接强力、和外观质量。(The invention relates to the technical field of protective materials, in particular to a thermal synthesis molding method of an adhesive tape material; heating the reactive hot melt adhesive by a heating system by adopting a thermal bonding forming machine; then spraying the hot melt adhesive on the adhesive tape by a fluid pump, and pressing and compacting the adhesive part of the adhesive tape in a roller pressing mode after spraying, and curing; the hot melt adhesive is applied to the bonding forming of the protective adhesive tape material for the first time, compared with the traditional cold bonding process, the forming method has the advantages of high forming efficiency and no environmental pollution, the forming efficiency is improved by more than 6-7 times after the method is adopted, and meanwhile, the bonding strength and the appearance quality in the adhesive tape forming process are improved.)

1. A thermal synthesis molding method of an adhesive tape material is characterized in that a thermal bonding molding machine is adopted to heat reactive hot melt adhesive through a heating system; and then spraying the hot melt adhesive on the adhesive tape through a fluid pump, and pressing and compacting the adhesive part of the adhesive tape in a roller pressing mode after spraying, and curing.

2. The thermal synthesis molding method of adhesive tape material as claimed in claim 1, wherein the temperature of the sol is 110-120 ℃, and the coating amount is 25-50g/m²。

3. The method for thermoforming an adhesive tape material as claimed in claim 1, wherein the spraying manner is line coating or surface coating.

4. The method for thermoforming a rubberized fabric material according to claim 1, wherein the spraying of the rubberizing method is replaced by roll coating.

5. The thermal synthesis molding method of adhesive tape material as claimed in claim 1, wherein the curing temperature is not lower than 20 ℃, the humidity is not lower than 50%, and the curing time is 2-5 days.

6. The thermal synthesis molding method for adhesive tape material as claimed in claim 1, wherein said reactive hot-melt adhesive is a PUR 7687 one-component moisture-curable reactive polyurethane hot-melt adhesive.

7. Use of the thermosynthetic method according to any of claims 1-6 in the forming process of protective apparel, gas boots and gas tent products.

Technical Field

The invention relates to the technical field of protective materials, in particular to a thermal synthesis molding method for an adhesive tape material.

Background

At present, adhesive tapes such as protective clothing, gas defense boots, gas defense tents and the like are mainly subjected to a cold bonding process, multiple layers of adhesive tapes are required to be brushed and can be bonded after a solvent is fully volatilized, and therefore, the forming efficiency is low; in the process of adopting the cold bonding process, a large amount of solvents such as gasoline, ethyl acetate and the like are used, so that certain potential safety hazards exist, and meanwhile, environmental pollution is easily caused; the cold bonding process and bonding are adopted, and the adhesive tape has poor quality consistency as long as the appearance quality is according to the operation level and the technique of workers; meanwhile, the bonding strength is low by adopting a cold bonding forming process.

Disclosure of Invention

The invention provides a hot-forming method for an adhesive fabric material, aiming at solving the technical problems of poor appearance quality consistency and low bonding strength of an adhesive fabric in a cold bonding process.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a thermal synthesis molding method of an adhesive fabric material adopts a thermal bonding molding machine, and heats reactive hot melt adhesive through a heating system; and then spraying the hot melt adhesive on the adhesive tape through a fluid pump, and pressing and compacting the adhesive part of the adhesive tape in a roller pressing mode after spraying, and curing.

The sizing material selected by the invention is a reactive hot melt adhesive, the hot melt adhesive does not need a solvent, contains no moisture, contains 100% of an adhesive, is a solid meltable polymer at normal temperature, is heated and melted to a certain degree to become a liquid adhesive which can flow and has certain viscosity, can not be melted for the second time after being heated and melted for molding once, and can meet the requirements of high and low temperature performance of equipment at a low temperature of-50 ℃. The method improves the forming efficiency by more than 6-7 times, and has good appearance and high quality consistency.

Further, the sol temperature is 110-120 ℃, and the glue coating amount is 25-50g/m²。

Different spraying modes such as line coating, surface coating and the like can be realized according to the shape design of the spray head.

Further, the spraying in the glue coating mode can be replaced by rolling coating.

Preferably, the curing temperature is not lower than 20 ℃, the humidity is not lower than 50%, and the curing time is 2-5 days.

Preferably, the reactive hot melt adhesive is a single-component moisture-cured reactive polyurethane hot melt adhesive of PUR 7687, the technical parameters are shown in figure 1, and the reactive hot melt adhesive has high initial adhesion. After curing, the product has high elasticity and high recoverability, is suitable for the adhesion of protective clothing, and can replace the traditional sewing and cold bonding process. It can maintain a very soft hand after being completely cured, and exhibits superior heat resistance and chemical resistance.

In addition, the invention also provides the application of the thermal synthesis molding method in the molding process of protective clothing, gas defense boots and gas defense tent products.

Compared with the prior art, the invention has the following beneficial effects:

the hot melt adhesive is applied to the bonding forming of the protective adhesive tape material for the first time, compared with the traditional cold bonding process, the forming method has the advantages of high forming efficiency and no environmental pollution, the forming efficiency is improved by more than 6-7 times after the method is adopted, and meanwhile, the bonding strength and the appearance quality in the adhesive tape forming process are improved.

Drawings

FIG. 1 is a technical parameter diagram of the reactive hot melt adhesive selected in the embodiment 1.

FIG. 2 is a graph showing the adhesive effect of the adhesive tape of example 1.

Detailed Description

The present invention is further illustrated by the following specific examples.

Example 1

Adopting a thermal bonding forming machine, heating the PUR 7687 single-component moisture-cured reactive polyurethane hot melt adhesive through a heating system, wherein the sol temperature is 120 ℃, spraying the hot melt adhesive on an adhesive tape through a fluid pump, and coating the adhesive on the adhesive tape: 40g/m2, and pressing and compacting the adhesive tape bonding part in a roller pressing mode after spraying. The curing temperature is 25 ℃, the humidity is 50 percent, and the curing time is 4 days. The selected sizing material is a reactive hot melt adhesive, the hot melt adhesive does not need a solvent, contains no moisture and 100% of an adhesive, is a solid meltable polymer at normal temperature, is heated and melted to a certain degree to become a liquid adhesive which can flow and has certain viscosity, can not be melted for the second time after being heated and melted for forming once, and can meet the requirements of high and low temperature performance of equipment at a low temperature of-50 ℃. By adopting the method, the forming efficiency is improved by more than 6-7 times, and the method has good appearance and high quality consistency.

Tests were carried out with preference on PUR 7687 one-component moisture-curing reactive polyurethane hotmelt adhesives, the technical parameters are shown in FIG. 1, and the adhesives have a relatively high initial adhesion. After curing, the product has high elasticity and high recoverability, is suitable for the adhesion of protective clothing, and can replace the traditional sewing and cold bonding process. It can maintain a very soft hand after being completely cured, and exhibits superior heat resistance and chemical resistance.

The adhesive tape product is subjected to hand sample trial production by adopting the mode, as shown in figure 2, the adhesive width uniformity is good, no residual adhesive exists in the appearance, the adhesive part is torn, the rubber layer and the base material fall off, and the phenomenon can indicate that the heat seal adhesive bonding process strength is greater than the adhesive strength between the rubber and the base material, and the index requirement can be met.