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Easy-to-uncover heat sealable films special for sanitary bag

A hygienic bag and heat-sealing film technology, which is applied in the field of easy-to-remove heat-sealing film for Tyvek hygienic bags, can solve problems such as lack of usability, and achieve the effect of easy opening and convenient use

Inactive Publication Date: 2009-08-12
ZHEJIANG GOLDSTONE PACKING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its advantages include: not easy to deform, soft and smooth, excellent opacity, moisture and water stain resistance, excellent air permeability, no adhesives, no bacteria; it has excellent hygienic performance, so Tyvek is currently used It is laminated with the packaging film and then hot-pressed to make a bag body, which is used as a special hygienic packaging bag for medical equipment; the side of the packaging film that is in direct contact with the Tyvek material is provided with a heat-sealing film. At present, polyethylene film is generally used As a heat-sealing film bonded with Tyvek material, but because the bonding force between polyethylene and Tyvek is too strong, it does not have the performance of easy peeling

Method used

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  • Easy-to-uncover heat sealable films special for sanitary bag
  • Easy-to-uncover heat sealable films special for sanitary bag
  • Easy-to-uncover heat sealable films special for sanitary bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] This embodiment is a special easy-to-remove heat-sealing film for Tyvek sanitary bags, and its raw materials include: polyethylene: 10 kilograms; and polyisobutylene used to reduce the bonding performance of the polyethylene: 1 kilogram; the weight The ratio of parts is 10:1.

[0014] The polyethylene is selected from the polyethylene produced by Hongtai Plastic Raw Materials Co., Ltd., and the polyisobutylene is selected from medium and high molecular weight polyisobutylene with a brand name of BASF B15.

[0015] After mixing the above-mentioned raw materials with good proportions, they are formed by blown film method in a blown film machine. The specific formula of this embodiment is shown in Table 1.

Embodiment 2 to Embodiment 6

[0017] Each embodiment in embodiment 2 to embodiment 6 is basically the same as embodiment 1, the difference is: the proportioning of raw materials used in each embodiment in embodiment 2 to embodiment 6 is different, see table 1 for details.

[0018] Table 1

[0019]

Embodiment 7 to Embodiment 12

[0021] Each embodiment in embodiment 7 to embodiment 12 is substantially the same as embodiment 1, and difference is: the raw material used in each embodiment in embodiment 7 to embodiment 12 is polyethylene and polyn-butylene, in addition, each embodiment The ratio of raw materials in is also slightly different, see Table 2 for details.

[0022]

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Abstract

The invention discloses a special easy-peel heat sealable film for a Tyvek sanitary bag. The film is made from 100 parts of polyethylene and 10-50 parts of polybutene or modified polybutene by weight. When the film is subject to thermal sealing with Tyvek material, two layers of materials have proper cohesive force therebetween, can bear articles, be easily torn, and convenient for use.

Description

technical field [0001] The invention belongs to the technical field of structural design of packaging films, and in particular relates to an easy-to-remove heat-sealing film for Tyvek sanitary bags. Background technique [0002] Tyvek is a trademark of DuPont for a range of sheet products. The sheet is spunbonded from numerous tiny polyethylene fibers, a unique jet-spinning technique that produces a lightweight yet extremely strong material. Tyvek (Tyvek) series products are strong and durable, with the characteristics of toughness and tear resistance. [0003] Tyvek material has a wide range of uses, and its balanced physical properties combine the characteristics of paper, cloth and film. Therefore, its application is more flexible than traditional fabrics. Its advantages include: not easily deformed, soft and smooth, excellent opacity, moisture-proof and water-resistant, excellent air permeability, no adhesives, no bacteria; it has excellent hygienic performance, so Ty...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/20B65D77/12
Inventor 张文锋孙国锦
Owner ZHEJIANG GOLDSTONE PACKING
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