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Release material and preparation method thereof

A release material and substrate layer technology, which is applied in the field of release film materials and its preparation, can solve problems such as unstable product performance, strong randomness of cracks, and differences in the release force of cracked parts.

Inactive Publication Date: 2012-05-30
FUJIAN HENGAN HLDG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the cracks of such materials are highly random, the product performance is unstable, and the separation force of different cracks is different, which cannot meet the needs of actual production.

Method used

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  • Release material and preparation method thereof
  • Release material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0097] After unwinding the PE film, it will be corona coated by a five-roll coater. The specific parameters: the surface density of the PE film is 25g / m 2 , The unwinding speed is 80m / min, the surface tension after corona is 45mN / m (dyne), the interval coating width is 40mm, and the coating weight per square meter is 0.4g / m 2 , Under the condition of UV light intensity of 1300m / min, the release material is formed, the peeling force at the place where the silicone oil is coated in the release material can reach 12 g / 25mm, and the residual adhesion rate can reach 84%.

Embodiment 2

[0099] After the PE film is unrolled, it will be corona coated by a five-roll coater. The specific parameters: the surface density of the PE film is 30g / m 2 , The unwinding speed is 120m / min, the surface tension after corona is 40mN / m (dyne), the interval coating width is 35mm, and the coating weight per square meter is 0.28g / m 2 , Under the condition of UV light intensity of 1500m / min, the release material is formed, the peeling force of the release material where the silicone oil is coated can reach 15 g / 25mm, and the residual adhesion rate can reach 90%.

Embodiment 3

[0101] After unwinding the BOPP film, it will be corona coated by a five-roll coater. The specific parameters: BOPP film surface density is 25g / m 2 , The unwinding speed is 150m / min, the surface tension after corona is 40mN / m (dyne), the interval coating width is 60mm, and the coating weight per square meter is 0.35g / m 2 , Uv light intensity is 2000m / min into the release material, the release material is coated with silicone oil, the peeling force can reach 24 g / 25mm, and the residual adhesion rate can reach 87%.

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Abstract

The invention relates to a release material for sanitary material and a preparation method thereof. The release material is prepared by steps of: unreeling a substrate layer and carrying out corona treatment; carrying out low weight remover coating on the substrate layer by a compartment five roller coating technology; exciting solidification of a photoinitiator by a Uv light source; carrying out a special slitting technology and winding. The substrate layer is one of PE membrane, PP membrane, PE composite non-woven fabrics and PE coated paper; and the remover is one of cation and free radical silicone oil. The preparation method employs a low weight solvent-free interval coating and a UV (ultraviolet energy) solidification technology; no volatile solvent is discharged during a production process; and the UV cold light source solidification discharges no heat energy. The method of the invention has profound and great significance in reducing cost, improving performance and protecting the environment and can be applied to the field of disposable sanitary caring.

Description

technical field [0001] The invention relates to a release film material and a preparation method thereof, in particular to a release material for hygienic materials and a preparation method thereof. Hygienic materials are usually disposable hygienic products that need to be individually packaged with the above release material. Background technique [0002] Since the early 1980s, women's sanitary napkins and sanitary pads began to be produced and sold domestically. With the improvement of people's living standards, people pay more and more attention to personal hygiene. Necessary consumer goods for women of different consumption levels. Moreover, with the improvement of living standards, safety, and resource conservation awareness, as well as the demand for comfort, fit, aesthetics, and hygiene of disposable sanitary products, disposable sanitary napkins are now developing in a lighter and thinner direction. . At present, the packaging of disposable sanitary products is ge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B9/04
Inventor 张富山钟磊孙晓丽
Owner FUJIAN HENGAN HLDG CO LTD
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