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A desiccant coating film

A desiccant and coating technology, applied in the direction of synthetic resin layered products, layered products, chemical instruments and methods, etc., can solve the problem of poor strength, inability to adapt to national transparent paper or non-woven fabrics, and non-woven fabrics that are resistant to dust. Poor performance and other problems, to achieve the same appearance and surface performance, high anti-dust performance, good air permeability

Active Publication Date: 2015-10-21
昆山建全防水透气材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 1: National transparent paper or non-woven fabrics have poor strength and cannot meet the needs of modern automatic high-speed production equipment
[0008] 2: Non-woven fabrics have poor dust resistance and are not suitable for use with desiccants for medicine, Chinese patent medicines, health care products, etc.

Method used

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  • A desiccant coating film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1 Preparation of desiccant coating film of the present invention

[0039] The first step: choose 30g / m 2 PP spunbond nonwoven fabric, 30g / m 2 PP / PE staple fiber spunbond nonwoven fabric

[0040] Step 2: On the non-woven hot-press laminating machine, select a temperature of 140°C, and directly hot-roll and compound it to make 60g / m 2 wit paper.

Embodiment 2

[0041] Example 2 Preparation of desiccant coating film of the present invention

[0042] The first step: choose 20g / m 2 PP spunbond nonwoven fabric, 30g / m 2 PP / PE staple fiber spunbond nonwoven fabric

[0043] Step 2: On the non-woven hot-press laminating machine, select a temperature of 130°C, and directly hot-roll and laminate to make 50g / m 2 wit paper.

Embodiment 3

[0044] Example 3 Preparation of desiccant coating film of the present invention

[0045] The first step: choose 30g / m 2 PP spunbond nonwoven fabric, 20g / m 2 PP / PE staple fiber spunbond nonwoven fabric

[0046] Step 2: On the non-woven hot-press laminating machine, select a temperature of 120°C, and directly hot-roll and compound it to make 50g / m 2 wit paper.

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Abstract

The invention provides a drier coating film-Witt nonwoven fabric. The invention is characterized in that the nonwoven fabric is prepared by directly carrying out hot press compounding on a high-polymer plastic PP (polypropylene) fiber nonwoven fabric and a high-polymer plastic PP / PE (polyethylene) double-component spunbonded nonwoven fabric. The drier coating film has the advantages of high strength and higher dust resistance, and can adapt to production of automatic high-speed production equipment.

Description

technical field [0001] The invention relates to the technical field of composite packaging materials, in particular to a novel desiccant coating film. Background technique [0002] The packaging material used as a desiccant must have the following properties: the material must have sufficient mechanical strength, be breathable, not leak, can be directly heat-sealed to adapt to automatic packaging machinery, and can be printed and other processing properties. [0003] Nowadays, heat-sealed tea filter paper (abbreviation: Guotou paper) and PET spunbond non-woven fabric (abbreviation: domestic non-woven fabric) are commonly used as desiccant packaging materials. The main composition of Guotou paper is natural plant fiber, and its main defects are The strength of the material itself is not high, and the heat sealing strength is poor; the main components of domestic non-woven fabrics are polyethylene terephthalate (PET for short) and polypropylene (PP) or polyethylene (PE). The m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/06B32B27/08B32B27/32
Inventor 沈飞
Owner 昆山建全防水透气材料有限公司