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Milk powder packing bag and preparing method thereof

A packaging bag and milk powder technology, applied in packaging, wrapping paper, transportation and packaging, etc., can solve the problems of harming consumers' health, poor heat resistance, and small market share, etc., achieve good aluminum layer adhesion, improve Cooling effect, effect of ensuring no odor

Inactive Publication Date: 2009-09-16
HUANGSHAN NOVEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the packaging with aluminum foil structure has a longer shelf life, generally reaching one and a half to two years, but the aluminum foil composite packaging bag does not occupy a large market share due to its relatively high cost; ordinary bidirectional stretched polypropylene (BOPP) ) / polyester (PE) transparent plastic composite packaging bag has been gradually eliminated by the market due to the poor heat resistance of BOPP material itself and the short shelf life of milk powder; and vacuum aluminized composite packaging bag because of its superior performance and low cost , Relatively long shelf life has become the mainstream form of milk powder packaging
However, in the vacuum aluminum-plated composite packaging bags currently on the market, some milk powder manufacturers will smell various odors when the packaging is opened. The above-mentioned odors have seriously damaged the health of consumers. m 2 Above; the total number of bacteria in milk powder packaging bags produced by some manufacturers seriously exceeds 1000 / 100cm 2 range

Method used

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  • Milk powder packing bag and preparing method thereof
  • Milk powder packing bag and preparing method thereof
  • Milk powder packing bag and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Milk powder packaging bag, from the inside to the outside, is an antibacterial inner film layer, a high-barrier vacuum aluminized film layer, and a PET polyester film layer. The preparation method:

[0065] a) In the PET film printing process: the PET polyester is polyethylene terephthalate. The ink is benzene-free ink, the ambient temperature is 20°C, the layered plate drying temperature is 55°C, the air inlet pressure and exhaust air pressure are 80mmHg, and the printing speed is 180m / min;

[0066] b) Preparation process of high-barrier vacuum aluminized film: prepared according to the method of z1200310112661.5.

[0067] c) The preparation process of antibacterial inner film, including feeding process, material plasticizing extrusion process, inflation traction process, air ring process, herringbone splint process, traction roller traction process, corona treatment process, film winding process:

[0068] In the described feeding process:

[0069] Composite layer: 5...

Embodiment 2

[0079] Milk powder packaging bag, from the inside to the outside, is an antibacterial inner film layer, a high-barrier vacuum aluminized film layer, and a PET polyester film layer. The preparation method:

[0080] a) In the PET film printing process: the PET polyester is polyethylene terephthalate. The ink is benzene-free ink, the ambient temperature is 25°C, the drying temperature for large area full plate is 75°C, the air inlet pressure and exhaust air pressure are 85mmHg, and the printing speed is 190m / min;

[0081] b) Preparation process of high-barrier vacuum aluminized film: prepared according to the method of z1200310112661.5.

[0082] c) The preparation process of antibacterial inner film, including feeding process, material plasticizing extrusion process, inflation traction process, air ring process, herringbone splint process, traction roller traction process, corona treatment process, film winding process:

[0083] In the described feeding process:

[0084] Compos...

Embodiment 3

[0093] Milk powder packaging bag, from the inside to the outside, is an antibacterial inner film layer, a high-barrier vacuum aluminized film layer, and a PET polyester film layer. The preparation method:

[0094] a) In the PET film printing process: the PET polyester is polyethylene terephthalate. The ink is benzene-free ink, the ambient temperature is 25°C, the layered plate drying temperature is 60°C, the air inlet pressure and exhaust air pressure are 90mmHg, and the printing speed is 200m / min;

[0095] b) Preparation process of high-barrier vacuum aluminized film: prepared according to the method of z1200310112661.5.

[0096] c) The preparation process of antibacterial inner film, including feeding process, material plasticizing extrusion process, inflation traction process, air ring process, herringbone splint process, traction roller traction process, corona treatment process, film winding process:

[0097] In the described feeding process:

[0098] Composite layer: 5...

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Abstract

The invention discloses a milk powder packing bag and a preparation method thereof. The packing bag includes an antibacterial inner-film layer, a high-obstruction vacuum aluminum plating film layer and a PET polyester film layer from inside to outside. The preparation method includes steps of a) PET film printing process; b) preparation process of the high-obstruction vacuum aluminum plating film; c) preparation process of the antibacterial inner-film; and d) composite process Compared with the prior art, the packing bag of the present invention has residual solvent mount less than 8mg / m<2>, and has no phenomenon of tainting by odour and peculiar smell.

Description

technical field [0001] The invention belongs to a food packaging bag and a preparation method thereof, in particular to a milk powder packaging bag and a preparation method thereof. Background technique [0002] Milk powder is a dry product, and its storage performance is better than that of liquid milk. It is a perishable food. Milk powder packaging is an important means to maintain the quality of milk powder. Milk powder plastic flexible packaging bags can be divided into transparent composite packaging bags, aluminum foil composite packaging bags and vacuum aluminized composite packaging bags according to the structure. Among them, the packaging with aluminum foil structure has a longer shelf life, generally reaching one and a half to two years, but the aluminum foil composite packaging bag does not occupy a large market share due to its relatively high cost; ordinary bidirectional stretched polypropylene (BOPP) ) / polyester (PE) transparent plastic composite packaging ba...

Claims

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Application Information

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IPC IPC(8): B65D30/02B65D65/40B32B15/085B32B15/09B32B15/20B32B27/20B32B27/32C08L23/06
Inventor 江继忠鲍祖本潘健汪学文
Owner HUANGSHAN NOVEL
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