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Ton bag production method

A production method and technology for ton bags, which are applied in the directions of stretch spinning, weaving, containers, etc., can solve the problems of poor flatness, insufficient tensile strength, and poor drop performance of ton bags, so as to reduce manpower and improve tensile strength. And the effect of flatness and strength enhancement

Pending Publication Date: 2022-04-12
青铜峡市华峰塑胶有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application provides a method for producing large bags, which is used to solve the problems of poor flatness, large elongation, insufficient tensile strength, and poor drop performance of large bags

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] The production method of the big bag in the present embodiment is carried out according to the following steps:

[0071] (1) Stirring: mix the raw material and the filler masterbatch according to the weight ratio of 9:1, and stir evenly to obtain the mixed raw material. The filler masterbatch includes the following components:

[0072] 80 parts by weight of calcium carbonate;

[0073] 5 parts by weight of dispersant, dispersant is made up of paraffin wax and fatty acid polyethylene glycol ester with the ratio of weight ratio 1:0.5;

[0074] 6 parts by weight of plasticizer, plasticizer is made up of dioctyl phthalate and glycol fatty acid ester with the ratio of 1:2 by weight;

[0075] 2 parts by weight of masterbatch;

[0076] 3 parts by weight of the reinforcing agent, the reinforcing agent is composed of cyanoethyl cellulose and ethopabate in a weight ratio of 1:1.

[0077] (2) Hot-melt: heat the mixed raw materials to 220°C for hot-melt to a viscous fluid state,...

Embodiment 2

[0086] The production method of the big bag in the present embodiment is carried out according to the following steps:

[0087] The only difference from Example 1 is:

[0088](1) Stirring: mix the raw material and the filler masterbatch according to the weight ratio of 15:1, and stir evenly to obtain the mixed raw material. The filler masterbatch includes the following components:

[0089] 85 parts by weight of calcium carbonate;

[0090] 6 parts by weight of dispersant, dispersant is made up of paraffin wax and fatty acid polyethylene glycol ester with the ratio of 1:1 by weight;

[0091] 7 parts by weight of plasticizer, plasticizer is made up of dioctyl phthalate and glycol fatty acid ester with the ratio of 1:1 by weight;

[0092] 4 parts by weight of masterbatch;

[0093] 5 parts by weight of the reinforcing agent, the reinforcing agent is composed of cyanoethyl cellulose and ethopabate with a weight ratio of 1:2.

[0094] (2) Hot melt: heat the mixed raw materials t...

Embodiment 3

[0099] The production method of the big bag in the present embodiment is carried out according to the following steps:

[0100] The only difference from Example 1 is:

[0101] (1) Stirring: mix the raw material and the filler masterbatch according to the weight ratio of 19:1, and stir evenly to obtain the mixed raw material. The filler masterbatch includes the following components:

[0102] 90 parts by weight of calcium carbonate;

[0103] 7 parts by weight of dispersing agent, dispersing agent is made up of paraffin wax and fatty acid polyethylene glycol ester with the ratio of weight ratio 1:1.5;

[0104] 7 parts by weight of plasticizer, plasticizer is made up of dioctyl phthalate and glycol fatty acid ester with the ratio of 2:1 by weight;

[0105] 5 parts by weight of masterbatch;

[0106] 6 parts by weight of the reinforcing agent, the reinforcing agent is composed of cyanoethyl cellulose and ethopabate with a weight ratio of 1:0.5.

[0107] (2) Hot-melt: Heat the m...

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Abstract

The invention provides a ton bag production method which comprises the steps of stirring, hot melting, cooling, wiredrawing, rolling, weaving, cutting, printing and sewing, specifically, raw materials and filling master batches are mixed according to the weight ratio of (9-19): 1, and mixed raw materials are obtained; heating the mixed raw material to 220-270 DEG C for hot melting, and extruding to obtain a film; feeding the film into a cooling water tank, and shaping under the action of circulating cooling water; the cooled film is cut to form blank filaments, then the blank filaments are stretched and shaped to form flat filaments, and the flat filaments are processed into the cylindrical woven bag and the hanging shroud band of the corresponding size through a circular weaving machine. Production of the ton bag is achieved, the tensile strength and flatness of the ton bag are improved, and meanwhile the ton bag has good falling performance and low elongation.

Description

technical field [0001] The present application relates to the technical field of big bags, in particular to a production method of big bags. Background technique [0002] Ton bags, also known as container bags, are made of polypropylene and polyethylene resin as the main raw materials, with a small amount of auxiliary materials added, mixed and melted by an extruder, extruded plastic film and cut into billets, which are processed at a temperature lower than the melting temperature of the resin. Stretching, making high-strength, low-elongation flat yarn through molecular orientation and heat setting, and then making woven bags through winding, weaving, cutting and sewing. The ton bag has the advantages of moisture-proof, dust-proof, radiation-resistant, firm and safe. It is a flexible transportation packaging container that can be widely used in various powdery, granular and blocky items such as chemicals, building materials, plastics, and mineral products. , transportation ...

Claims

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Application Information

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IPC IPC(8): B29D7/01B65D88/16D03D15/283D01D5/42D03D15/37D01D5/12D01D10/02
Inventor 代良云陈志强陈志刚刘学文
Owner 青铜峡市华峰塑胶有限公司
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