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Forming process of emulsifiable concentrate packaging roll film bag

A molding process and film rolling technology, which is applied in the field of molding process of EC packaging film bags, can solve the problems of prolonging molding time and reducing molding efficiency, and achieve the effects of improving molding efficiency, improving corrosion resistance and excellent anti-corrosion performance.

Active Publication Date: 2018-12-14
南京苏祥印务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, most of the existing pesticide packaging bags are anti-corrosion by increasing the layer structure and adopting a multi-layer composite method, which prolongs the molding time and reduces the molding efficiency.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0035] The preparation method of modified tea saponin is as follows:

[0036] (1) Add 15 parts of acrylic acid, 10 parts of methyl acrylate, 10 parts of butyl acrylate and 70 parts of water into a three-necked flask in sequence for stirring at a stirring speed of 100r / min, and a nitrogen flow at a speed of 20ml / min, heated to 45°C under nitrogen atmosphere, and kept for 15 min;

[0037] (2) Add 0.5 parts of polyoxyethylene hydrogenated castor oil and 0.3 parts of sodium lauryl sulfate to step (1), stir evenly, and heat up to 65°C;

[0038] (3) Add 0.2 parts of peroxide initiator to step (2), raise the temperature to 75°C while stirring, and react for 1.5 hours;

[0039] (4) Keep the temperature at 75°C, add 20 parts of tea saponin, and soak for 2 hours.

Embodiment 1

[0041] A forming process of cream packaging roll film bag, comprising the steps of:

[0042] (1) Heating: use electric heating to melt PE particles;

[0043] (2) Blown film: the melted PE particles after heating are blown into film by air cooling;

[0044] (3) Anti-corrosion: a. Preparation of anti-corrosion spraying agent: 50 parts of methyl methacrylate, 20 parts of methacrylic acid, 10 parts of vinyltrimethoxysilane, 10 parts of cage silsesquioxane, 5 parts of PTFE wax powder 1 part, modified tea saponin 5 and 1 part of silane coupling agent, mix the above-mentioned components uniformly, and react for 2 hours; b, spray anti-corrosion spraying agent to the blown film surface of step (2);

[0045] (4) Printing: Print the film that needs to be printed, using plastic ink to print;

[0046] (5) Composite: wrap the printed film in step (4) with anti-corrosion blown film, and form a three-layer plastic film structure after compounding;

[0047] (6) Bag making: make the plastic ...

Embodiment 2

[0050] A forming process of cream packaging roll film bag, comprising the steps of:

[0051] (1) Heating: use electric heating to melt PE particles;

[0052] (2) Blown film: the melted PE particles after heating are blown into film by air cooling;

[0053] (3) Anti-corrosion: a. Preparation of anti-corrosion spraying agent: 50 parts of ethyl methacrylate, 20 parts of methacrylic acid, 10 parts of vinyl triethoxysilane, 10 parts of cage silsesquioxane, PTFE wax powder 6 parts, modified tea saponin 5 and 1 part of silane coupling agent, mix the above components evenly, and react for 2 hours; b, spray anti-corrosion spraying agent on the surface of the blown film in step (2);

[0054] (4) Printing: Print the film that needs to be printed, using plastic ink to print;

[0055] (5) Composite: wrap the printed film in step (4) with anti-corrosion blown film, and form a three-layer plastic film structure after compounding;

[0056] (6) Bag making: make the plastic film in step (6) ...

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Abstract

The invention discloses a forming process of an emulsifiable concentrate packaging roll film bag, which is applied to the field of pesticide packaging, and overcomes the technical defect that corrosion resistance is improved by increasing composite layers mostly in the prior art. The technical scheme is characterized in that the forming process comprises following process steps: (1), heating; (2),film blowing; (3), corrosion resisting; (4), printing; (5), compounding; (6), bag making; (7), slitting. The forming process adopts electrical heating, requires no other fuel and contributes to environmental protection of production; molten PE particles are subjected to blow molding to form a film and cooled by air, excellent environmental protection property is achieved, an anti-corrosion spraying agent is sprayed to the surface of the blown film for anti-corrosion treatment on the blown film, the corrosion resistance of the blown film is remarkably improved, the process is simple, the modeof increasing the composite layers is avoided, so that the forming time is shortened, and the forming efficiency is improved.

Description

technical field [0001] The invention relates to a pesticide packaging material, in particular to a forming process of a roll film bag for emulsifiable cream packaging. Background technique [0002] Pesticides generally have the characteristics of high concentration and high toxicity, which are extremely harmful to the human body. Therefore, the safety and environmental protection requirements of pesticide packaging are very important. For a long time, there have been different kinds of packaging materials on the market. Glass bottles have been basically eliminated due to their shortcomings such as high breakage rate, loose sealing of glass bottle inner plugs, and inconvenient measurement; plastic packaging is widely used, which is light, drop-resistant , accurate measurement and low packaging cost, plastic packaging is divided into plastic packaging bags and plastic containers. [0003] At present, except for a few varieties of pesticide dosage forms on the market, no matt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D22/00B29C37/00C09D4/02C09D4/06C09D7/63C09D7/65C09D5/08B29K23/00
CPCB29C37/0025B29D22/003B29K2023/06C09D4/06C09D5/08C09D7/63C09D7/65
Inventor 李信文
Owner 南京苏祥印务有限公司
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