FFS three-layer extrusion heavy-duty film

Product Description

Usually, the industrial packaging film that can carry 10-50kg of solid particles or powdery materials is called heavy packaging film. Generally, 25kg industrial bags are used, also known as 25kg bags. Because of the need for palletizing, the two sides of the bag body are folded, and the cross-section is shaped like M, also known as M-folded bag or folded edge bag.

FFS heavy-duty packaging film occupies an advantageous position in terms of rapid packaging, one-time molding, no pollution, material saving, low labor cost, good sealing moisture resistance and printing performance.

The production of FFS heavy packaging film mainly includes two processes: film blowing line and printing line. Since the heavy packaging film not only needs strength guarantee, but also takes into account the requirements of packaging, heat sealing, palletizing, transportation and other links, so the performance indicators are many and complex, and it is difficult to meet the requirements by single-layer extrusion.

The three-layer co-extrusion method can decompose the quality index layer by layer, and meet the different quality indexes of customers through different film layers, so as to meet the requirements of the overall quality index.

Therefore, the blown film line is generally based on the internationally accepted three-layer co-extrusion tube film method in the production of heavy packaging film, with linear low-density polyethylene raw materials as the main raw material. In the production process, the functionalization of the film is realized by adjusting the process parameters, interlayer ratio and raw material ratio.

During the printing process, double-sided corona and multi-color printing are realized by adjusting the film penetration path according to the customer's layout requirements. The printing line is generally equipped with embossing and hemming devices. It is required that the printed pattern of the product is clear and complete, the embossing force is appropriate, and the hemming and winding sides are neat.

FFS heavy-duty packaging film is based on the semi-finished film obtained from the blown film production line. Through a series of facility operations on the printing line, the bag body is preformed to ensure that the heavy-duty packaging film has excellent heat-sealing properties, tensile properties, surface properties, etc. Meet the requirements of customers in the various links of machine use, palletizing, transportation and dropping.

Benefits

Performance characteristics of FFS heavy packaging film:

It can withstand the filling of materials below 70 ℃ and multiple handling and turnover.

The surface of the bag is smooth, smooth and beautiful, with rich patterns, clear colors and anti-counterfeiting properties.

Excellent airtightness, moisture resistance, water resistance and anti-fouling performance, can be stacked in the open air, convenient for transportation and storage, and the inner product does not melt, agglomerate, lose quantity, and quality.

The packaging bag has a special formula, it will not soften and deform when exposed to high temperature, and will not be brittle and broken when exposed to severe cold; it is anti-ultraviolet and stable in color; compared with plastic woven bags, it can double the storage and shelf life of the outer packaging and inner products .

The packaging capacity is flexible, and it can be designed and manufactured according to the different requirements of different merchants for color, thickness, and specifications, and can meet the needs of different manufacturers and different regions.

Improve packaging efficiency and reduce labor intensity. Due to the use of automatic packaging, the packaging speed reaches 1 200 to 2 000 bags/h, which greatly exceeds the packaging efficiency of traditional composite bags, and the number of operators is reduced by about 70%.

With the application of new materials, the thickness of the film is gradually reduced, the strength is gradually increased, and the comprehensive packaging cost is better than the traditional packaging form.

Comply with the national industrial policy, easy to recycle, and protect the ecology to the greatest extent.