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Preparation method of bottle mouth for liquid packaging bag

A technology for packaging bags and bottle nozzles, which is applied in the field of bottle nozzle preparation, can solve problems such as leakage, and achieve the effects of improving sealing performance, easy tearing, and increasing productivity.

Active Publication Date: 2016-11-09
永新股份(黄山)包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, it solves the problems of leakage and backflow of boiling liquid, and the unscrewing torque is stably controlled at 0.2-0.4Nm, which is the most suitable for unscrewing

Method used

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  • Preparation method of bottle mouth for liquid packaging bag
  • Preparation method of bottle mouth for liquid packaging bag
  • Preparation method of bottle mouth for liquid packaging bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The weight parts of the constituent raw materials of the bottle cap 20 are: 100 parts of polyethylene and 4 parts of color masterbatch;

[0041] The composition raw material of the bottle mouth 10 is polypropylene, and the parts by weight are: 100

[0042] Its manufacturing method includes the following steps:

[0043] 1) The raw materials of the bottle cap 20 are uniformly mixed according to the above-mentioned proportion by weight, added to the hopper of the first injection molding machine, and the temperature of the heating section of the first injection molding machine is set to be 180-200 ° C;

[0044] The raw material of the bottle mouth 10 is added to the hopper of the second injection molding machine according to the above weight portion, and the temperature of the heating section of the second injection molding machine is set to 200-240 ° C;

[0045] 2) Injection molding

[0046] a. For the first injection molding machine, 1100kg / cm 2 The injection pressure ...

Embodiment 2

[0052] The weight parts of the constituent raw materials of the bottle cap 20 are: 100 parts of polyethylene and 4 parts of color masterbatch;

[0053] The raw material of the bottle mouth 10 is polypropylene, and the parts by weight are: 100;

[0054] Its manufacturing method includes the following steps:

[0055] 1) The raw materials of the bottle cap 20 are uniformly mixed according to the above-mentioned proportion by weight, added to the hopper of the first injection molding machine, and the temperature of the heating section of the first injection molding machine is set to be 180-200 ° C;

[0056] The raw material of the bottle mouth 10 is added to the hopper of the second injection molding machine according to the above weight portion, and the temperature of the heating section of the second injection molding machine is set to 200-240 ° C;

[0057] 2) Injection molding

[0058] a. For the first injection molding machine, 1300kg / cm 2 The injection pressure is 36mm / s, ...

Embodiment 3

[0064] The weight parts of the constituent raw materials of the bottle cap 20 are: 100 parts of polyethylene and 4 parts of color masterbatch;

[0065] The raw material of the bottle mouth 10 is polypropylene, and the parts by weight are: 100;

[0066] Its manufacturing method includes the following steps:

[0067] 1) The raw materials of the bottle cap 20 are uniformly mixed according to the above-mentioned proportion by weight, added to the hopper of the first injection molding machine, and the temperature of the heating section of the first injection molding machine is set to be 180-200 ° C;

[0068] The raw material of the bottle mouth 10 is added to the hopper of the second injection molding machine according to the above weight portion, and the temperature of the heating section of the second injection molding machine is set to 200-240 ° C;

[0069] 2) Injection molding

[0070] a. For the first injection molding machine, 1400kg / cm 2 The injection pressure is 30mm / s, ...

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Abstract

The invention belongs to the technical field of preparation of bottlenecks and particularly relates to a preparation method for a bottleneck of a liquid packaging bag. The preparation method mainly comprises the following steps: adding uniformly mixed raw materials in a set proportion into a heated injection moulding machine; setting the injection pressures, speeds, injection times and injection dispense volumes of different sections of the injection moulding machine and setting holding pressure and holding time to obtain the optimum injection moulding process, and thus finally efficiently and quickly obtaining a qualified product. The preparation method provided by the invention fully considers the realization ability of the mould so as to optimize the realization ability of the mould from source, so that the mould production cycle is extremely lowered and the capacity is remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of bottle mouth preparation, in particular to a preparation method of a bottle mouth for a liquid packaging bag. Background technique [0002] The basic structure of the bottle mouth of the existing liquid packaging bag is a bottle mouth and a bottle cap, the bottle mouth and the liquid packaging bag are fixedly connected together, and the bottle cap is generally connected to the bottle mouth by means of a screw connection. The existing bottle nozzles fail to fully consider the realization ability of the mold in the product design, resulting in a long production cycle of the mold during the injection molding process of the product (one mold generally takes 20 seconds), resulting in low production efficiency and a large production capacity of the product. In addition, the sealing performance of the existing bottle mouth and bottle cap is poor, which is easy to cause leakage of the content or there is a risk t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/00C08L23/06C08L23/12
Inventor 丁全柱方洲
Owner 永新股份(黄山)包装有限公司
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