Method for manufacturing interior film-pasting woven bag

Abstract

The invention discloses a method for manufacturing an interior film-pasting woven bag, and relates to the technical field of woven bag manufacturing. The interior film-pasting woven bag comprises an outer plastic bag body formed by weaving polypropylene plastics. An ethylene-vinyl acetate film and a high-pressure low-density polyethylene film are sequentially arranged in the outer plastic bag body. The method includes the following operation steps: A, manufacturing plastic ribbon-like filaments; B, manufacturing the two films; C, manufacturing the outer plastic bag body with the double films; D, manufacturing an interior film-pasting woven bag reel by an interior film pasting combining machine through the outer plastic bag body, obtained in the step C, with the double films; and E, carrying out cutting and sewing on the interior film-pasting woven bag reel obtained in the step D, and completing manufacturing of the interior film-pasting woven bag. Compared with the prior art, the method can solve the problem that an inner bag body of an existing interior film-lining woven bag is prone to being damaged.

Description

technical field

[0001] The invention relates to the technical field of woven bag manufacture, in particular to a method for manufacturing an inner mucous membrane woven bag. Background technique

[0002] Due to the special requirements for packaging in chemical, cement, chemical fertilizer, sugar and other industries, a considerable part of plastic woven bags must have the function of waterproof and sealing. At present, one of the waterproof and sealed woven bags widely produced and used in my country is a separate inner lining film. Woven bag, this kind of film-lined woven bag is made of woven plastic outer bag and single-layer film-lined bag. The production efficiency is low, the waste of manpower is large, and continuous and efficient production cannot be carried out. The size of the inner bag is larger than that of the outer bag; when loading materials, the inner and outer bags of the inner film woven bag are not uniformly stressed, and the inner bag is easily damaged. C...

Examples

Embodiment 1

[0022] A kind of manufacture method of inner mucous membrane woven bag, inner mucous membrane woven bag such as image 3 As shown, it includes a plastic outer bag 9 woven from polypropylene plastic, and an ethylene-vinyl acetate film layer 10 and a high-pressure low-density polyethylene film layer 11 are sequentially provided in the plastic outer bag 9;

[0023] Including the following steps:

[0024] A. Making plastic flat wire: Extrude polypropylene plastic particles into plastic strips through a plastic extruder, and the plastic strips are cooled and cut into slices, heated and stretched to make plastic flat wires for later use;

[0025] B. Making double-layer films: heat, melt and plasticize ethylene-vinyl acetate plastics and high-pressure low-density polyethylene plastics, and extrude them through a double-layer co-extrusion blown film machine to form a cylindrical outer layer. The ethylene-vinyl acetate film layer 10 and the inner layer are double-layered films of the ...

Embodiment 2

[0032] The temperature of heating oven 4 is controlled at 90 degrees, and all the other features are identical with embodiment 1.

technical field

[0001] The invention relates to the technical field of woven bag manufacture, in particular to a method for manufacturing an inner mucous membrane woven bag. Background technique

[0002] Due to the special requirements for packaging in chemical, cement, chemical fertilizer, sugar and other industries, a considerable part of plastic woven bags must have the function of waterproof and sealing. At present, one of the waterproof and sealed woven bags widely produced and used in my country is a separate inner lining film. Woven bag, this kind of film-lined woven bag is made of woven plastic outer bag and single-layer film-lined bag. The production efficiency is low, the waste of manpower is large, and continuous and efficient production cannot be carried out. The size of the inner bag is larger than that of the outer bag; when loading materials, the inner and outer bags of the inner film woven bag are not uniformly stressed, and the inner bag is easily damaged. C...

Examples

Embodiment 1

[0022] A kind of manufacture method of inner mucous membrane woven bag, inner mucous membrane woven bag such as image 3 As shown, it includes a plastic outer bag 9 woven from polypropylene plastic, and an ethylene-vinyl acetate film layer 10 and a high-pressure low-density polyethylene film layer 11 are sequentially provided in the plastic outer bag 9;

[0023] Including the following steps:

[0024] A. Making plastic flat wire: Extrude polypropylene plastic particles into plastic strips through a plastic extruder, and the plastic strips are cooled and cut into slices, heated and stretched to make plastic flat wires for later use;

[0025] B. Making double-layer films: heat, melt and plasticize ethylene-vinyl acetate plastics and high-pressure low-density polyethylene plastics, and extrude them through a double-layer co-extrusion blown film machine to form a cylindrical outer layer. The ethylene-vinyl acetate film layer 10 and the inner layer are double-layered films of the ...

Embodiment 2

[0032] The temperature of heating oven 4 is controlled at 90 degrees, and all the other features are identical with embodiment 1.

Images