CN105415659A - Production technique for thin film - Google Patents

Abstract

The invention discloses a production technique for a thin film. The production technique comprises the following steps that a, raw materials are selected, and specifically, polyethylene and metallocene are selected as the raw materials; b, stirring is conducted, and specifically, the polyethylene and the metallocene are placed into a stirring machine, an additive is added at the same time, then heating and stirring are conducted at a constant speed, and a mixture is obtained after being evenly stirred; c, the mixture is put into a feeding machine, accurately fed into a single-screw-rod extruder for extrusion forming through the feeding machine, and discharged through a die head to be inflated; d, cooling is conducted, specifically, a fan is adopted for cooling the inflated material; e, film drawing is conducted through an upward-traction film drawing machine after cooling; f, winding is conducted, and specifically, the drawn thin film is wound through a winding machine; and g, the thin film is cut off after a certain number of thin film is wound by the winding machine, next winding is conducted, and the wound thin film is bagged. The production technique is simple, high in manufacturing efficiency and low in cost; meanwhile, the prepared thin film is even in thickness, high in tensile strength and good in quality.

Description

A kind of production technology of film

Technical field

The invention belongs to thin film fabrication techniques field, be specifically related to a kind of production technology of film.

Background technology

Plastic sheeting is the common daily necessitiess of present people, plastic sheeting have the transparency good, hinder the advantages such as moist good, excellent heat resistance, easy to use, low price and be widely used in all trades and professions, but plastic sheeting is in the market mainly based on sealed polyethylene plastic, but product there will be the problems such as fold, poor transparency, uneven thickness even film bubble flake be many.

Summary of the invention

Technical problem to be solved by this invention is for above-mentioned the deficiencies in the prior art, provides a kind of production technology of film, and its manufacture craft is simple, and obtained product thickness is even, and hot strength is high.

The technical solution adopted in the present invention is: a kind of production technology of film, comprises the following steps,

A, choose raw material, select polyethylene and metallocene to be raw material;

B, stirring, join polyethylene and metallocene in mixer, and add auxiliary agent simultaneously, and then constant-speed heating stirs, and obtains mixture after stirring;

C, mixture is added in feeding machine, carry out extrusion molding by feeding machine accurate feeding to single screw extrusion machine, then inflated by die head discharging;

D, cooling, adopt blower fan to cool the material after inflation;

Upper traction film balance is adopted to carry out membrane after e, cooling;

F, rolling, utilize winder rolling by the film of pull-out;

Cut off after g, winder rolling to some, carry out rolling next time, the film wound is packed.

As preferably, the heating-up temperature of described stirring is 150-180 degree Celsius.

Beneficial effect of the present invention is: manufacture craft of the present invention is simple, make efficiency is high, cost is low, and simultaneously obtained film thickness is even, and hot strength is high, and quality is good.

Detailed description of the invention

Below in conjunction with specific embodiment, the present invention is described in further detail.

Embodiment: a kind of production technology of film, comprises the following steps,

A, choose raw material, select polyethylene and metallocene to be raw material;

B, stirring, join polyethylene and metallocene in mixer, and add auxiliary agent simultaneously, and then constant-speed heating stirs, and obtains mixture after stirring;

C, mixture is added in feeding machine, carry out extrusion molding by feeding machine accurate feeding to single screw extrusion machine, then inflated by die head discharging;

D, cooling, adopt blower fan to cool the material after inflation;

Upper traction film balance is adopted to carry out membrane after e, cooling;

F, rolling, utilize winder rolling by the film of pull-out;

Cut off after g, winder rolling to some, carry out rolling next time, the film wound is packed.

In above-described embodiment, the heating-up temperature of described stirring is 150-180 degree Celsius.

Manufacture craft of the present invention is simple, make efficiency is high, cost is low, and simultaneously obtained film thickness is even, and hot strength is high, and quality is good.

Claims (2)

1. a production technology for film, is characterized in that: comprise the following steps,

A, choose raw material, select polyethylene and metallocene to be raw material;

B, stirring, join polyethylene and metallocene in mixer, and add auxiliary agent simultaneously, and then constant-speed heating stirs, and obtains mixture after stirring;

C, mixture is added in feeding machine, carry out extrusion molding by feeding machine accurate feeding to single screw extrusion machine, then inflated by die head discharging;

D, cooling, adopt blower fan to cool the material after inflation;

Upper traction film balance is adopted to carry out membrane after e, cooling;

F, rolling, utilize winder rolling by the film of pull-out;

Cut off after g, winder rolling to some, carry out rolling next time, the film wound is packed.

2. the production technology of a kind of film according to claim 1, is characterized in that: the heating-up temperature of described stirring is 150-180 degree Celsius.