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Process for making hot melt adhesive net film

A preparation process, a technology for gluing omentum, applied in textiles, papermaking, non-woven fabrics, etc., can solve the problems of omentum tearing, sticking mesh belt, and uniformity of omentum aperture, so as to reduce production failure and improve Effects on tensile strength, increased efficiency and flexibility

Active Publication Date: 2015-04-01
KUNSHAN TIANYANG HOT MELT ADHESIVE CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the demand for hot-melt adhesive omentum has a lower melting point, and low-melting point hot-melt adhesives are prone to problems such as sticking to the mesh belt, breaking the omentum, and poor uniformity of the omentum aperture during the production process.
These new problems are difficult to be effectively solved by conventional omentum processing technology

Method used

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  • Process for making hot melt adhesive net film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The high melting point (DSC final melting point 135°C) hot melt adhesive and the low melting point (DSC final melting point 105°C) hot melt adhesive are melted and pumped into the independent first spinneret and the second spinneret; the two spinneret The distance between the plates is 1m, the conveyor belt (steel belt) works, and its transmission speed is 13m / min; open the first spinneret, adjust its internal temperature to 210°C, spinneret speed to 10m / min, airflow (compressed air) speed The high melting point hot melt adhesive is spun from the first spinneret to the conveyor belt under the airflow traction to form a mesh film; the mesh film is heated by the first infrared heating zone with a temperature of 100°C to form the first Layer omentum; open the second spinneret, adjust its internal temperature to 180°C, spinneret speed to 8m / min, air velocity (nitrogen) to 100m / min, low melting point hot melt adhesive from the second spinneret and The filaments are spun onto...

Embodiment 2

[0022] The high melting point (DSC final melting point 147°C) hot melt adhesive and the low melting point (DSC final melting point 73°C) hot melt adhesive are melted and then pumped into the independent first spinneret and second spinneret; the two spinnerets The distance between the plates is 1m, the conveyor belt (steel belt) is working, and the transmission speed is adjusted to 13 m / min; the first spinneret is opened, and the internal temperature is adjusted to 220°C, the spinneret speed is 8m / min, and the air flow (nitrogen) The speed is 100m / min, and the high melting point hot melt adhesive is spun from the first spinneret to the conveyor belt under the airflow traction to form a mesh film; the mesh film is heated by the first infrared heating zone with a temperature of 110°C to form the second A layer of omentum; open the second spinneret, adjust its internal temperature to 200°C, spinneret speed to 8m / min, air velocity (nitrogen) to 100m / min, low melting point hot melt a...

Embodiment 3

[0024] The high melting point (DSC final melting point 180°C) hot melt adhesive and the low melting point (DSC final melting point 100°C) hot melt adhesive are melted and then pumped into the independent first spinneret and second spinneret; the two spinneret The distance between the plates is 2m, the conveyor belt (steel belt) is working, and the transmission speed is adjusted to 15 m / min; the first spinneret is opened, the internal temperature is adjusted to 240 °C, the spinneret speed is 12m / min, and the air flow (compressed air ) at a speed of 100m / min, the high-melting point hot melt adhesive is spun from the first spinneret to the conveyor belt under airflow traction to form a mesh film; the mesh film is heated by the first infrared heating zone with a temperature of 130°C to form The first layer of omentum; open the second spinneret, adjust the internal temperature to 190°C, the spinning speed to 10m / min, the air velocity (compressed air) to 120m / min, and the low-melting...

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Abstract

The invention provides a process for making a hot melt adhesive net film. The process is characterized in that the hot melt adhesive net film is of a bilayer structure, and two kinds of hot melt adhesive resin different in melting point and performance are melt-blown respectively and stacked sequentially to form the net film through online melt-blow composite technology. The process has the advantages that performance of the hot melt adhesive net film can be adjusted conveniently and flexibly, and limitation, on net film production, of melting point of the hot melt adhesive resin is improved.

Description

technical field [0001] The invention relates to a preparation process of a hot-melt adhesive omentum, which is especially suitable for producing hot-melt adhesive composite omentum products with special properties. Background technique [0002] Hot-melt adhesive film is widely used in clothing, textiles, automobiles, electronics and other industries due to its solvent-free, pollution-free, fast curing speed, and good hot-pressing process performance. CN94105906.5 provides a hot-melt adhesive omentum preparation technology with at least one layer structure. The hot-melt adhesive omentum is formed by overlapping, entanglement and condensation between fibers. CN200810033753.7 provides a preparation method of hot-melt adhesive omentum. This patent prepares a hot-melt adhesive omentum with uniform pore size and stable gram weight by adding a nucleating agent and controlling the resin melt temperature and spinning speed. . CN201010175654.X proposes an omentum forming, conveying ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4374D04H1/559
CPCD04H1/4374D04H1/559
Inventor 李哲龙朱万育宣中旺曾作祥张勇健
Owner KUNSHAN TIANYANG HOT MELT ADHESIVE CO LTD
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