CN211495140U

CN211495140U - Plastic-free heat-sealing packaging bag

Info

Publication number: CN211495140U
Application number: CN201922184086.9U
Authority: CN
Inventors: 钱天蓉; 刘立; 刘其建; 刘荣庆
Original assignee: Shanghai Hanshang New Material Technology Co ltd
Current assignee: Shanghai Hanshang New Material Technology Co ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-09-15
Anticipated expiration: 2029-12-09

Abstract

The utility model relates to a do not have heat-seal wrapping bag of moulding belongs to medical instrument sterilization packaging material field for the sterilization package of disposable medical consumables is applicable to the gaseous sterilization of ethylene oxide. The packaging bag does not contain plastic materials, the used base material is medical dialyzing paper base paper (1) which is divided into a front surface and a back surface, the front surface is a printing surface (2) and can be used for marking a package; the reverse side is coated with a layer of water-based heat-sealing glue (3); arranging corresponding heat-sealing dies according to the shape and size of the required bag, and mutually attaching the adhesive-coated surfaces (3) of the adhesive-coated paper to form a heat-sealing bag on a heat-sealing bag-making machine; the manufactured pure paper packaging bag has proper heat sealing strength, the opening is smooth and has no paper scrap or paper breaking phenomenon when being opened, and meanwhile, the packaging bag has good gas permeability, so that the pure paper packaging bag is a good choice for upgrading and updating plastic packaging bags in the field.

Description

Plastic-free heat-sealing packaging bag

Technical Field

The utility model relates to a packaging material belongs to medical instrument sterilization packaging material field, specifically relates to a no plastic heat-seal wrapping bag that is used for disposable medical consumables sterilization packing.

Background

Medical device consumables must have a very safe and reliable package. Such as: disposable syringes, various instruments, medical gauze and cotton, medical gloves, etc., are rigorously sterilized and packaged before reaching the hands of medical workers. Earlier packages in this field were pure plastic bags and also plastic film and aluminum foil composite packages, which were difficult to sterilize due to their impermeability, and inefficient for sterilization using high temperature or radiation. In recent years, due to the advantage of fast and efficient ethylene oxide gas (EO) sterilization, breathable packaging bags have been developed, such as: one side is PET/PE composite film, the other side is the paper plastic bag of the coated dialyzing paper with printed characters. Because of the outstanding advantages of low cost and convenient use, a considerable number of medical sterilization packaging bags are 'paper bags' formed by heat-sealing PE film-coated paper and gummed dialysis paper, and are widely applied to the field of medical instrument packaging.

However, the traditional "paper bag" made of PE film coated paper and gummed dialysis paper uses plastic materials which are difficult to degrade.

The first is that the glue-coated dialysis paper in the paper bag uses plastic type solid hot melt adhesive, because the solid hot melt adhesive material is a special plastic in nature and is difficult to degrade. The utility model patent application No. 201820635466.2 proposes the use of water-based heat-seal adhesive instead of solid hot melt adhesive, so that the environmental protection problem of the solid hot melt adhesive can be solved.

However, the laminated paper used in the paper bag uses paper as a substrate, and a layer of plastic (usually polyethylene PE plastic) melted at high temperature is coated on the surface of the paper, and the gram weight of the laminated plastic is usually as high as 12-20 g/m². The paper bag made of the laminated paper contains a large amount of plastic components, and the plastic is difficult to degrade in the natural environment after being discarded, thereby polluting the environment.

With the implementation of increasingly strict environmental protection policies of countries in the world, particularly the recently introduced "forbidden plastic" of disposable packaging materials, the environmental protection problem in the field becomes increasingly prominent.

Disclosure of Invention

Aiming at the problems, the research and development of the plastic-free packaging bag which is free of plastic, environment-friendly, excellent in heat sealing performance, high in gas phase sterilization efficiency, economical in cost and used for disposable medical consumable sterilization packaging has practical urgent significance.

The utility model discloses, provided a do not have heat-seal wrapping bag of moulding, do not adopt plastic material, reached the performance that adopts "paper container bag" of drenching the preparation of membrane paper, can be applied to the packing of some medical consumptive materials betterly, reached the purpose of no plastic packaging.

The utility model relates to a do not have heat-seal wrapping bag of moulding, the technical scheme who takes is: the medical dialyzing paper does not contain plastic materials, the used base material is medical dialyzing paper base paper (1) which is divided into a front surface and a back surface, the front surface is a printing surface (2) and can be used for marking a package; the reverse side is coated with a layer of water-based heat-sealing glue (3); arranging corresponding heat-sealing dies according to the shape and size of the required bag, and mutually heat-sealing the glue-coated surfaces (3) of the glue-coated paper on a heat-sealing bag making machine to make a bag; the manufactured pure paper packaging bag has proper heat sealing strength, and the opening is smooth and has no paper scrap or paper breakage phenomenon when being opened; meanwhile, the packaging bag has good gas permeability, can replace a paper bag of laminating paper in the field of medical consumable packaging, and has obvious advantages of environmental protection, comprehensive performance and cost.

As a preferred scheme, the plastic-free heat-seal packaging bag is characterized in that the water-based heat-seal adhesive coating is a hot-melt water-based heat-seal adhesive coating, does not contain VOCs, and has the characteristics of water resistance, alcohol resistance and heat sealing, and the dry weight of the adhesive coating is 1.5-5.0 g/m²。

As a preferred scheme, the plastic-free heat-seal packaging bag is characterized in that the gram weight of the raw paper of the dialyzing paper is 30-120 g/m²。

As a preferred scheme, the plastic-free heat-seal packaging bag has the heat-seal bag-making strength of 1.5-5.5N/15 mm.

The beneficial effects of the utility model reside in that: 1. the environment-friendly plastic coating does not contain plastic materials, is easy to degrade in the environment and is beneficial to environmental protection; 2. the coated water-based heat-seal adhesive coating has strong waterproof performance, does not contain VOCs, is alcohol-resistant and corrosion-resistant, and the physical performance of the coating reaches or approaches to that of PE (polyethylene) laminating paper; 3. the glue coating amount is small, the resources are saved, the air permeability is better than that of the laminating paper, and the EO efficient sterilization is facilitated; 4. the heat-seal strength of the heat-seal bag is easy to control, the opening of the bag is smooth and free of paper scraps or broken paper, and the openness of the bag is superior to that of a paper bag made of laminating paper, so that the bag is more convenient to use and is a novel packaging material which is environment-friendly, safe, convenient to use, economical and applicable in the field.

Drawings

FIG. 1: the base material of the packaging bag is schematically shown in the figure: printing surface layer (2)// medical dialyzing paper base paper (1)// water-based heat sealing glue layer (3).

FIG. 2 is a drawing: schematic interface diagram of heat-sealing bag-making method: adopt the glue-coated face (3) to laminate heat-seal each other, the upper and lower layer structure of heat-seal department is: printing layer (2)// dialysis paper (1)// water-based heat-sealing adhesive layer (3)// liver(Heat sealing interface)/(Water-based heat-sealing adhesive layer (3)// dialysis paper (1)// printing layer (2).

Detailed Description

The present invention will be described in further detail below with reference to the accompanying drawings.

As shown in FIG. 1, the present invention relates to a plastic-free heat-sealing packaging bag, which is selected to be 60g/m in this embodiment²Medical dialyzing paper base paper with gram weight.

In this embodiment, the water-based heat-sealing adhesive coating is a 302W medical water-based heat-sealing adhesive of Youlida series of Wanhan industries, Inc. of Shanghai.

On the scraper anilox roller coating machine with the hot air drying channel system, coating a selected water-based heat-seal adhesive layer (3) on the adhesive-coated surface of the medical dialyzing paper base paper, wherein the coating dry weight is as follows: 3g/m²。

And printing product information such as trademark patterns on the printing surface (2) of the gluing base material by using an aqueous flexographic printing machine.

And (4) slitting the bag-making heat-sealing base material on a slitting machine according to the specification of a bag-making machine.

On a heat-seal bag making machine, a designed heat-seal bag making mold is selected, the heat-seal bag making base material is used, a face-to-face heat-seal mode (the heat-seal bag making mode shown in figure 2) of an adhesive layer (3) is adopted for heat-seal bag making, and heat-seal process parameters are as follows: heat-seal temperature 150 ℃, heat-seal time: 0.5 second, heat-seal pressure: 0.5 MPa.

The no plastic heat-seal wrapping bag of above-mentioned preparation of inspection detects heat-seal intensity, waterproof nature, alcohol resistance, becomes after qualified the utility model discloses the product.

While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.

Claims

1. The utility model provides a do not have and mould heat-seal wrapping bag for disposable medical consumables sterilization package, its characterized in that: the packaging bag does not contain plastic materials, the used base material is medical dialyzing paper base paper (1) which is divided into a front surface and a back surface, the front surface is a printing surface (2) and can be used for marking a package; the reverse side is coated with a water-based heat sealing adhesive layer (3); the heat-seal position of the packaging bag is the joint of the water-based heat-seal adhesive layers (3) with each other.

2. The plastic-free heat-sealable package of claim 1 wherein: the water-based heat-seal adhesive coating is a hot-melt water-based heat-seal adhesive coating, and the dry weight of the adhesive coating is 1.5-5.0 g/m²。

3. The plastic-free heat-sealable package of claim 1 wherein: the gram weight of the raw paper of the dialyzing paper is 30-120 g/m²。

4. The plastic-free heat-sealable package of claim 1 wherein: the heat-sealing bag strength is 1.5-5.5N/15 mm.