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High-strength polyester spunbonded non-woven quicklime desiccant packaging film and production method thereof

A technology of spun-bonded non-woven fabric and high-strength polyester, which is applied in the direction of chemical instruments and methods, layered products, synthetic resin layered products, etc., which can solve the problems of poor water permeability, poor drying effect, and low tear strength and other problems, to achieve the effect of good gas passage performance, improved peel strength, and good air permeability

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, which is combined with water to form hydrates for drying. The use of desiccants in food packaging is to avoid food spoilage caused by excess water. The current desiccants 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 risk of powder leakage and explosion

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • High-strength polyester spunbonded non-woven quicklime desiccant packaging film and production method thereof
  • High-strength polyester spunbonded non-woven quicklime desiccant packaging film and production method thereof
  • High-strength polyester spunbonded non-woven quicklime desiccant packaging film and production method thereof

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Embodiment 1

[0029] Example 1: Structure of high-strength polyester spunbonded non-woven quicklime desiccant packaging film

[0030] like figure 1 As shown, the high-strength polyester spunbond non-woven quicklime desiccant packaging film includes PET spunbond non-woven fabric 1 and milky white PE breathable film 2, and the PET spunbond non-woven fabric 1 and milky white PE breathable film 2 are glued by AD Compounded with agent 3 (polyurethane two-component adhesive), the PET spunbonded nonwoven fabric is a PET hot-pressed nonwoven fabric with a smooth surface or smooth on both sides, and the weight of the PET spunbonded nonwoven fabric 1 is 40-80g / m 2 , the surface of the material is smooth, and it is not easy to fluff when rubbed by hand. At the same time, the surface can be printed with water-based ink, and the text and pattern are clear; the air permeability of the milky white PE breathable film is 25-50g / M 2 , the breathable membrane not only has good air permeability, but also ha...

Embodiment 2

[0031] Embodiment 2: the production method of high-strength polyester spunbond non-woven quicklime desiccant packaging film

[0032] 1) Take the PET spunbonded nonwoven fabric and use flexographic water-based ink to print text and patterns on the surface to obtain PET spunbonded nonwoven fabric 1;

[0033] 2) Weigh the raw materials according to the following weight ratio: LDPE 15%, LLDPE 20%, MLLDPE 20%, elastomer PE 8% and calcium carbonate 37%, and produce milky white PE breathable film 2 through casting process;

[0034] 3) Corona treatment is carried out on the glued surface of the milky white PE breathable membrane 2, the corona condition is a voltage of 2KW, and the unwinding speed is 100m / min;

[0035] 4) Use a dry lamination machine with a three-stage or four-stage oven for dry lamination, and the mesh roll of the dry lamination adopts AD adhesive in a point-like interval, such as figure 2 As shown, a set of gluing areas 4 with a square structure is set on the surfa...

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Abstract

The invention provides a high-strength polyester spunbond non-woven quick lime drying agent packaging film and a preparation method thereof, and belongs to the technical field of packaging films. Thepackaging film comprises PET spunbond non-woven and a milky white PE breathable film, wherein the PET spunbond non-woven and the milky white PE breathable film are compounded through an AD adhesive. The packaging film has the advantages that characters and patterns are printed on the surface of the PET spunbond non-woven through flexible water-base ink printing, the fact that the surface is not cottony guaranteed, and the printing environmental protection property is further guaranteed; through the improvement of the components of the milky white PE breathable film, corona in a specific condition before dry compounding, improvement of sizing treatment area of a specific structure on a reticle roll and the improvement of a dry compound condition, the peeling strength, heat sealing strengthand mechanical strength are improved under the premise of improvement of air permeability.

Description

technical field [0001] The invention belongs to the technical field of packaging films, and in particular relates to a high-strength polyester spunbonded non-woven 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, which is combined with water to form hydrates for drying. The use of desiccants in food packaging is to avoid food spoilage caused by excess water. The current desiccants 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 risk of powder leakage and explosion. Contents of the invention [0003] Aiming at the problems existing in the prior art, the purpose of the present invention is to design and provide a technical solution for a high-strength polyester spunbonded non-woven quicklime desiccant packaging fil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/02B32B27/12B32B27/32B32B27/36B32B7/12C08L23/08C08L23/06C08K3/26C08J5/18
CPCB32B5/02B32B7/12B32B27/12B32B27/32B32B2262/0276C08J5/18C08J2323/08C08J2423/06
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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