Method for preparing hot-melt adhesive net film

A technology of adhesive omentum and hot melt adhesive, applied in the direction of textiles, papermaking, non-woven fabrics, etc., can solve the problems of high cost, development restrictions, high grammage, etc., and achieve the goal of improving production efficiency, reducing production cost, and low production cost Effect

Active Publication Date: 2012-01-18
SHANGHAI TIANYANG HOT MELT ADHESIVE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that most of the films currently used are still hot-melt adhesive films, which have a high grammage and consume more hot-melt collagen materials, resulting in higher costs, which is not conducive to the development of circular economy.
Although there are hot-melt adhesive omentum preparations, the range of hot-melt collagen materials used is relatively small, and its development is also subject to certain restrictions.

Method used

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  • Method for preparing hot-melt adhesive net film
  • Method for preparing hot-melt adhesive net film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Weigh a total of 10kg of copolyamide hot-melt adhesive with a model of 7200 (melting index is 30g / 10min), put it into the twin-screw after drying, melt it at 225°C, and then pressurize it to 0.8MPa in the melt pump. The diameter of the nozzle is 0.9mm, and the pressure of the compressed air is controlled to make the air flow rate 90m / min, the speed of the spinneret line is 13m / min, the diameter of the sprayed hot melt adhesive thread is 60μm, and the moving speed is 15m / min The conveyor belt was heated to 100 ℃ by infrared irradiation, and then sprayed by a sprayer with a water spray rate of 2Kg / h for 1.5 minutes, the crystallization was solidified, and the total duration was 10 minutes, and finally a hot-melt adhesive mesh was made. mesh, the average gram weight is 61g / m 2 .

Embodiment 2

[0018] Weigh a total of 10kg of polyester hot-melt adhesive with a model of 3150 (melting index is 40g / 10min), put it into the twin-screw after drying, melt it at 200℃, and then put it into the melt pump and pressurize it to 0.8MPa. It is sprayed from a 0.3mm nozzle, and the pressure of the compressed air is controlled so that the airflow speed is 90m / min, the speed of the spinneret is 15m / min, and the diameter of the sprayed hot melt adhesive wire is 50μm, and the moving speed is 10m / min. The conveyor belt was heated to 90°C by infrared irradiation, and then sprayed by a sprayer with a water spray rate of 1Kg / h for 2 minutes, the crystallization was solidified, and the total duration was 12 minutes, and finally a hot-melt adhesive mesh was made. The average gram weight is 69g / m 2 .

Embodiment 3

[0020] Weigh 3142 polyester hot melt adhesive (melting index is 80g / 10min) for a total of 10kg, put it into the twin-screw after drying, melt it at 200℃, and then put it into the melt pump and pressurize it to 0.5MPa. It is sprayed from a 0.9mm nozzle, and the pressure of the compressed air is controlled so that the airflow speed is 60m / min, the linear speed of the spinneret is 10m / min, and the diameter of the sprayed hot melt glue wire is 60μm, and the moving speed is 10m / min. The conveyor belt was heated to 85°C by infrared irradiation, and then sprayed for 2 minutes by a sprayer with a water spray rate of 1Kg / h, and the crystallization was solidified. The average gram weight is 65g / m 2 .

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Abstract

The invention provides a method for preparing a hot-melt adhesive net film. The method comprises the following steps of: melting a hot-melt adhesive serving as a raw material; squeezing and spinning; heating and crystallizing by infrared light; and solidifying the material to form a net by spraying and the like. The hot-melt adhesive net film with uniform aperture and stable gram weight is prepared by controlling the melting temperature of the hot-melt adhesive, the spinning speed, the speed of a conveying belt, infrared temperature and spray. The steps are continuously finished in a production flow, so that the production efficiency is greatly improved, and the method is suitable for industrial production.

Description

technical field [0001] The invention relates to a method for preparing a hot-melt adhesive mesh film, in particular to a method for preparing a hot-melt adhesive mesh film by using polyester hot-melt adhesive and the like as raw materials. technical background [0002] Hot melt adhesive is known as "green" adhesive due to its solvent-free, pollution-free, fast curing speed and good process performance. It has developed rapidly in recent years. Hot melt adhesive mesh is a material with aging resistance, corrosion resistance, good thermal stability and good tensile strength, burst resistance and good water permeability, so it is widely used in the clothing industry, filter materials, shoe leather materials, packaging materials, etc. It is the most promising emerging industry in the textile industry and is known as the "new material" in the textile industry. [0003] Chinese patent CN101240148A provides a method for preparing a hot-melt adhesive mesh film, which includes the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H3/16
Inventor 李哲龙朱万育肖小玲曾作祥王荣君韩涛
Owner SHANGHAI TIANYANG HOT MELT ADHESIVE CO LTD
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