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High-breathability packaging material and preparation method thereof

A packaging material and air permeability technology, which is applied in the field of high air permeability packaging materials for medical device packaging and its preparation, can solve problems such as increasing the difficulty of sterilization, increasing production costs, and reducing yields

Inactive Publication Date: 2021-09-10
JIANGYIN BAOBO PACKING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current production process of some dialysis papers, the base paper is generally coated with a full coating method. However, the full coating method not only increases the amount of glue used, increases the production cost, but also sacrifices to a certain extent. Gas permeability; and the use of fully coated dialysis paper to package medical devices in the process of ethylene oxide sterilization, the gas permeability becomes poor, which increases the difficulty of sterilization, and it is easy to burst the bag during the sterilization analysis process, reducing the Yield

Method used

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  • High-breathability packaging material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0025] The present invention is a highly air-permeable packaging material. The film layer structure of the packaging material sequentially includes a first heat-sealing layer and a base material layer 1 from the inside to the outside; the base material layer is Tyvek; the first The heat-sealing layer is made of a material containing heat-sealing resin, and the material is coated on one or both sides of the substrate layer by gravure printing to form the first heat-sealing layer and / or the second heat-sealing layer respectively. .

[0026] The raw materials comprising the heat-sealing resin include 70% water-based EVA emulsion with a solid content of 40%, 20% water-based butyl rubber resin with a solid content of 65%, 7.6% inorganic filler, 2% Ammonia water, 0.2% dispersant, 0.2% defoamer. The dispersant includes aliphatic amides, such as ethylene bisstearic acid amide or stearic acid amide; polyethylene wax powder, polymer block copolymer, silicate dispersant, ammonium polyca...

Embodiment 2

[0033] The difference between Example 2 and Example 1 is that the raw materials containing the heat-sealing resin include 60% of water-based EVA emulsion with a solid content of 40%, 30% of water-based butyl resin with a solid content of 65%, in terms of weight percentage. Rubber resin, 5.4% inorganic filler, 3% ammonia water, 0.3% dispersant, 0.3% defoamer.

Embodiment 3

[0035]The difference between Example 3 and Example 1 is that the raw materials containing the heat-sealing resin include 56.4% of water-based EVA emulsion with a solid content of 40% and 30% of water-based butyl resin with a solid content of 65%. Rubber resin, 10% inorganic filler, 3% ammonia water, 0.3% dispersant, 0.3% defoamer.

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Abstract

The invention discloses a high-breathability packaging material for packaging medical apparatus and instruments. A film layer structure of the packaging material sequentially comprises a first heat-sealing layer, a base material layer and / or a second heat-sealing layer from inside to outside, and the first heat-sealing layer and / or the second heat-sealing layer are / is formed by taking a material containing heat-sealing resin as a raw material and coating one side of two sides of the base material layer with the raw material by adopting an intaglio printing method. The invention further discloses a preparation method of the high-breathability packaging material. Due to the fact that the heat-sealing resin is sprayed to one side or two sides of the base material layer in a fixed-point manner by adopting the intaglio printing method, the packaging material has good porosity, uniform pores and small holes, an excellent ventilation effect is achieved, the sterilization difficulty of ethylene oxide is reduced, the sterilization effect of ethylene oxide and the like is improved, and the medical apparatus and instruments packaged by the packaging material can keep a long-term sterile effect during transportation, storage and use.

Description

technical field [0001] The invention relates to the technical field of packaging materials, in particular to a highly air-permeable packaging material used for packaging medical devices and a preparation method thereof. Background technique [0002] As an important part of medical devices, medical device sterilization packaging is widely used in the packaging of sterile medical device production products to ensure that medical device products maintain sterile conditions during transportation, storage and use. Paper-plastic bags, aluminum-plastic bags, dialysis paper with excellent air permeability, Tyvek, blister forming film, and blister boxes of various materials are the main materials for medical device sterilization packaging. [0003] Dialysis paper is widely used in medical sterilization. The so-called dialysis is to block some things and allow some things to penetrate. Dialysis paper used for medical device sterilization generally allows sterilizing factors such as E...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/24B05D1/28B05C1/08B65D65/40
CPCB05D7/24B05D1/28B05C1/0834B05C1/0808B65D65/40
Inventor 黄文娟李全布王清赵刚陈健
Owner JIANGYIN BAOBO PACKING
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