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Low temperature resistant high-transparency CPP packaging film capable of printing internally

A high-transparency, packaging film technology, used in packaging, wrapping paper, transportation and packaging, etc., can solve problems such as unsatisfactory production conditions, low economic benefits, and unbalanced production and sales, to promote technological progress and increase market share. , the effect of low cost

Inactive Publication Date: 2011-09-28
福州佳通第一塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The upstream raw materials and special materials are in short supply, while the downstream CPP film is oversupplied, resulting in an imbalance of production and sales in all links
The substantial increase in cost has led to low economic benefits for various CPP film production enterprises and unsatisfactory production conditions

Method used

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  • Low temperature resistant high-transparency CPP packaging film capable of printing internally
  • Low temperature resistant high-transparency CPP packaging film capable of printing internally
  • Low temperature resistant high-transparency CPP packaging film capable of printing internally

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] 1 Screening of tougheners

[0023] Layer A is PP resin, layer C is terpolymerized PP resin and 1.2 parts (parts by mass, the same below) of slip agent, layer B is PP resin without adding and adding 7 parts (parts by mass, the same below) Toughening agent, the mass ratio of the three layers: A layer 18%, B layer 64%, C layer 18% (the same below). The measured transparency and haze of the 38 μm film are shown in Table 1.

[0024] Table 1 Effect of toughening agent on film transparency and haze

[0025]

[0026] Table 1 shows that ULLDPE and M-LLDPE will reduce the transparency of the film and increase its haze, while POE, POP and their compound tougheners can improve the transparency of the film and reduce its haze. This should be due to the different compatibility between different tougheners and copolymer materials. ULLDPE, M-LLDPE and HPP have poor compatibility, so the transparency is poor and the haze is high. The compatibility of POE and POP and their compound ...

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PUM

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Abstract

The invention provides a inner prinking functional CPP packaging film having good toughness at low temperature and capable of replacing a common printing-grade CPP film. The method for preparing the inner printing CPP packaging film which has low temperature resistance and high transparence adpots PP resin as a raw material, surfactant, slip agent and low-temperature flexibilizer which is compounded by POE and POP are added, and the mixture is processed by three-layer tape casting and corona to obtain low temperature resistant and high-transparency inner printing CPP packaging film. The invention introduces in a macromolecule blending modification method and changes the defects that the CPP film is friable at low temperature by compounding the flexibilizer. The method has lower use level, obvious plasticizing effect, favorable transparency, low cost and strong market competitive power; meanwhile, the technology improves the wetting tension of the CPP film by improving the formula to obtain the level of inner printing, develops the CPP film with low temperature resistance, high transparency and the inner printing property and expands the application range of the CPP film.

Description

technical field [0001] The invention relates to a raw material formula of a CPP packaging film and a preparation process thereof, more specifically to a low-temperature-resistant, high-transparency reprintable CPP packaging film and a production process thereof, belonging to the field of polymer materials. Background technique [0002] my country's CPP film started in the 1980s, when single-layer casting equipment was introduced from abroad, with a width of only 1-1.5m and an annual production capacity of about 1,000-1,500 tons / set. Mitsubishi Heavy Industries, German Reifenhauser, W&H, Italian Colines, Dolci, and American Battenfeld have introduced multi-layer co-extruded cast film production lines with a width of 2-2.5 m and an annual production capacity of 3000-4000 tons per unit. A more advanced production line has been introduced, a multi-layer co-extruded cast film production line with a width of 4-4.5 m and an annual production capacity of 5000-6000 tons / set. At the sa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/14C08L23/00C08L71/00B65D65/40B32B27/18B32B27/32
Inventor 林渊智王丽蕊史凤烟
Owner 福州佳通第一塑料有限公司
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