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High-strength dust-proof quicklime desiccant packaging film and production method thereof

A production method and technology of quicklime, applied in packaging, wrapping paper, packaged food, etc., can solve problems such as poor water permeability, poor drying effect, and low tear strength, and achieve good gas passage performance and ensure no lint , Improve the effect of heat sealing strength

Active Publication Date: 2020-08-11
杭州星点包装材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Desiccant refers to a substance that can remove moisture from wet substances, such as quicklime. It is dried by combining with water to form hydrate. The use of desiccant in food packaging is to avoid food spoilage caused by excess water. The current desiccant Food packaging paper is often of a sealed structure, but its water permeability is not good, the drying effect is not good, the tear strength is small, and there is a phenomenon of powder leakage

Method used

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  • High-strength dust-proof quicklime desiccant packaging film and production method thereof
  • High-strength dust-proof quicklime desiccant packaging film and production method thereof
  • High-strength dust-proof quicklime desiccant packaging film and production method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1: Structure of high-strength dust-proof quicklime desiccant packaging film

[0038] like figure 1 As shown, the high-strength dust-proof quicklime desiccant packaging film includes PET spunbond non-woven fabric 1, milky white PE breathable film 2 and perforated breathable PE film 3, PET spunbond non-woven fabric 1, milky white PE breathable film 2 and perforated The breathable PE films 3 are compounded by AD adhesive 4 (polyurethane two-component adhesive). Among them, the weight of PET spunbonded non-woven fabric 1 is 40-80g / m 2 ; Milky white PE breathable film weighs 20-40g / m2 in 2 grams 2 ; The diameter of the air holes in the perforated air-permeable PE film 3 is 0.5-3 mm, and the distance between the air holes is 1-5 mm.

Embodiment 2

[0039] Embodiment 2: the production method of high-strength dust-proof quicklime desiccant packaging film

[0040] 1) Take the PET spunbonded nonwoven fabric and use flexo plate water-based ink to print text and patterns on the surface to obtain PET spunbonded nonwoven fabric 1;

[0041] 2) Weigh the raw materials according to the following weight ratio: LDPE 15%, LLDPE 20%, MLLDPE 20%, elastomer PE 5% and calcium carbonate 40%, and produce milky white PE breathable film through casting process;

[0042] 3) Weigh each raw material according to the following weight ratio: 20% LDPE, 40% LLDPE and 40% MLLDPE, obtain a breathable PE film through the film making process, and carry out thermal perforation treatment on the PE film. The thermal perforation condition is: the needle roller adopts Electronic heating tube internal heating method, punching temperature 100°C, needle roller diameter 150mm, needle diameter 0.5mm, needle length 5mm, to obtain perforated breathable PE film 3; ...

Embodiment 3

[0052] Embodiment 3: the production method of high-strength dust-proof quicklime desiccant packaging film

[0053] 1) Take the PET spunbonded nonwoven fabric and use flexo plate water-based ink to print text and patterns on the surface to obtain PET spunbonded nonwoven fabric 1;

[0054] 2) Weigh each raw material according to the following weight ratio: LDPE 20%, LLDPE 15%, MLLDPE 10%, elastomer PE 10% and calcium carbonate 45%, and produce milky white PE breathable film through casting process;

[0055] 3) Weigh each raw material according to the following weight ratio: 30% LDPE, 30% LLDPE, 40% MLLDPE, obtain a breathable PE film through the film making process, and carry out thermal perforation treatment on the PE film. The thermal perforation condition is: the needle roller adopts Electronic heating tube internal heating method, punching temperature 120°C, needle roller diameter 200mm, needle diameter 1mm, needle length 3mm, to obtain perforated breathable PE film 3;

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Abstract

A novel high-strength dustproof lime desiccant packaging film and a production method thereof belong to the technical field of packaging films. The novel high-strength dustproof lime desiccant packaging film is composed of PET (polyethylene terephthalate) spun-bonded non-woven fabric, a milk white PE (polyethylene) breathable film and a perforated breathable PE film, which are compounded through AD adhesives. According to the novel high-strength dustproof lime desiccant packaging film, flexible plate water-based ink is applied to printing texts and patterns onto the PET spun-bonded non-woven fabric to ensure no surface fluff and environmental friendliness of printing; the components of the milk white PE breathable film and the perforated breathable PE film are improved, before dry compounding is performed, corona treatment under specific conditions, improvement of specific-structured coating areas of anilox rollers and improvement of structures and compounding conditions of dry compounding coating areas are implemented, so that, under the premise of improving air permeability, the peeling strength, the mechanical strength and particularly the heat-sealing strength can be improved.

Description

technical field [0001] The invention belongs to the technical field of packaging films, and in particular relates to a high-strength dust-proof quicklime desiccant packaging film and a production method thereof. Background technique [0002] Desiccant refers to a substance that can remove moisture from wet substances, such as quicklime. It is dried by combining with water to form hydrate. The use of desiccant in food packaging is to avoid food spoilage caused by excess water. The current desiccant Food packaging paper is often of a sealed structure, but its water permeability is not good, the drying effect is not good, the tear strength is small, and there is a phenomenon of powder leakage. Contents of the invention [0003] Aiming at the problems existing in the prior art, the object of the present invention is to design and provide a technical solution for a high-strength dust-proof quicklime desiccant packaging film and a production method thereof. [0004] The high-st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/36B32B27/32B32B27/08B32B27/18B32B3/24B32B7/12B32B37/12B32B38/00B32B38/14B32B38/16B32B43/00B65D65/40C08L23/08C08L23/06C08K3/26C08J5/18C08J7/12
CPCB32B3/266B32B7/12B32B27/08B32B27/18B32B27/32B32B27/36B32B37/1284B32B38/0008B32B38/145B32B38/164B32B43/003B32B2250/246B32B2307/31B32B2307/54B32B2307/724B32B2439/00B65D65/40C08J5/18C08J7/123C08J2323/06C08J2323/08C08J2423/06C08J2423/08C08K2003/265C08L23/06C08L23/0815C08L2205/025C08L2205/035C08L2207/066C08L2314/06C08K3/26
Inventor 闫勃宋治福毛兵
Owner 杭州星点包装材料有限公司
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