CN105196576A - Preparing method for cold draw imbalance double-spacing directional linear film packaging bag - Google Patents

Abstract

The invention discloses a preparing method for a cold draw imbalance double-spacing directional linear film packaging bag. The preparing method includes the following steps that low-density polyethylene, a low-density linear material and a modified additive material are put into a stirrer by the ratio and evenly stirred; the mixture is heated, blown up and formed through a blow molding machine and cooled through an air blower; splitting and sealing are carried out on a computer splitter according to the length requirement after rolling to prepare the finished product. The prepared packaging bag is high in transparency and toughness, insulative and dampproof, the tensile strength and disruptive strength are improved, recovering and remachining are easy, and therefore the packaging bag can be recycled many times.

Description

The two preparation method apart from directed line style film packaging bag of a kind of cold drawn imbalance

Technical field

The present invention relates to the two preparation method apart from directed line style film packaging bag of a kind of cold drawn imbalance.

Background technology

Existing packaging bag exists that this transparency is not high, poor toughness, insulation and moisture are general, stretch and resistanee to rupture low, and be not easy to reclaim reprocessing, be therefore unfavorable for recycling and polluting environment and waste production cost.

Summary of the invention

The object of this invention is to provide a kind of cold drawn imbalance two apart from directed Linear low density ethylene film packaging bag, there is the stretching resistanee to rupture of enhancing.

The technical solution used in the present invention is: the two preparation method apart from directed line style film packaging bag of a kind of cold drawn imbalance, and step is as follows:

A, low density polyethylene (LDPE), low-density line style material and modification adding material are proportionally put into mixer, stir;

B, again by blow moulding machine heat inflation shaping, through blower cools;

C, batch after cut by length requirement on computer cutting machine again, seal, the finished product of system.

In described step 1, the ratio of low density polyethylene (LDPE), low-density line style material and modification adding material is: 50-60:30-40:10-20, and above ratio is by weight.

The invention has the beneficial effects as follows: this packaging bag transparency is good, pliability is good, insulation and moisture, enhances stretching and resistanee to rupture, and it is very simple to reclaim reprocessing, can repeatedly cycling and reutilization.

Detailed description of the invention

Embodiment 1:

The two preparation method apart from directed line style film packaging bag of cold drawn imbalance, step is as follows:

A, low density polyethylene (LDPE), low-density line style material and modification adding material are put into mixer according to the part by weight of 50:40:10, stir;

B, again by blow moulding machine heat inflation shaping, through blower cools;

C, batch after cut by length requirement on computer cutting machine again, seal, the finished product of system.

Embodiment 2:

The two preparation method apart from directed line style film packaging bag of cold drawn imbalance, step is as follows:

A, low density polyethylene (LDPE), low-density line style material and modification adding material are put into mixer according to the part by weight of 60:30:10, stir;

B, again by blow moulding machine heat inflation shaping, through blower cools;

C, batch after cut by length requirement on computer cutting machine again, seal, the finished product of system.

Embodiment 3:

The two preparation method apart from directed line style film packaging bag of cold drawn imbalance, step is as follows:

A, low density polyethylene (LDPE), low-density line style material and modification adding material are put into mixer according to the part by weight of 50:30:20, stir;

B, again by blow moulding machine heat inflation shaping, through blower cools;

C, batch after cut by length requirement on computer cutting machine again, seal, the finished product of system

Above embodiments of the present invention are described, but the invention is not restricted to above-mentioned embodiment, in the ken that art those of ordinary skill possesses, can also make a variety of changes under the prerequisite not departing from present inventive concept.

Claims (1)

1. the two preparation method apart from directed line style film packaging bag of cold drawn imbalance, is characterized in that: step is as follows:

A, low density polyethylene (LDPE), low-density line style material and modification adding material are proportionally put into mixer, stir;

B, again by blow moulding machine heat inflation shaping, through blower cools;

C, batch after cut by length requirement on computer cutting machine again, seal, the finished product of system;

In described step 1, the ratio of low density polyethylene (LDPE), low-density line style material and modification adding material is: 50-60:30-40:10-20, and above ratio is by weight.