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Antibacterial fresh-keeping packaging bag special for rice and processing method thereof

A packaging bag and rice technology, applied in packaging, wrapping paper, transportation and packaging, etc., can solve the problems of not being able to inhibit the growth and elimination of grain molds, unfavorable grain preservation, complicated production process, etc., and achieve the benefit of grain quality assurance , the formula is simple and novel, and the effect of low cost

Inactive Publication Date: 2009-12-30
卢新宪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the early 1990s, a kind of polymer coating film structure packaging bag containing insecticides coated on the outer surface of ordinary plastic woven bags appeared in China. The insecticides in the film were slowly released to prevent and kill insects. The insecticide ingredients in the coating can only prevent and kill insects, but cannot inhibit the growth and elimination of grain molds, which is still not conducive to the preservation of grain
In recent years, an inner plastic bag made of polyethylene, surface roughening agent and insect-proof and mildew-proof agent raw materials has come out. The bag is equipped in an outer woven bag to hold grain. ingredients, the production process is complicated and the cost is high

Method used

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  • Antibacterial fresh-keeping packaging bag special for rice and processing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The special antibacterial and fresh-keeping packaging bag for rice comprises: a plastic woven bag body and a coating film with ventilation holes on its outer surface, and the coating film material coated on the outer surface of the plastic woven bag is made of Zinc oxide whisker nanocomposite material masterbatch and polyethylene (PE) or polypropylene (PP) material masterbatch are combined, and the proportion of each component by weight is: zinc oxide whisker nanocomposite material 1-17%, polyethylene (PE) or polypropylene (PP) material 83-99%.

Embodiment 2

[0015] A kind of processing method of special antibacterial and fresh-keeping packing bag of rice, according to above-mentioned ratio weight, will all be powdery zinc oxide whisker nano-composite material masterbatch and polyethylene (PE) or polypropylene (PP) material masterbatch are mixed Evenly, melt the above-mentioned masterbatch mixture into a liquid state at a high temperature of 210-250°C, then drool-coat it on the surface of the plastic woven cloth to form a coating film, and color-print the desired pattern on the coating film of the plastic woven cloth. Make micro-shaped ventilation holes on the coating film and pattern, cut and sew the plastic woven cloth into grain antibacterial packaging bags.

Embodiment 3

[0017] The coating film material coated on the outer surface of the plastic woven bag includes 3% zinc oxide whisker nanocomposite material masterbatch and 97% polyethylene (PE) or polypropylene (PP) material masterbatch, Weigh it for later use; mix all the powdered zinc oxide whisker nanocomposite masterbatches with polyethylene or polypropylene material masterbatches, and mix them evenly in a mixer; send the evenly mixed materials into the coating machine, It melts into a liquid state at a high temperature of 210-250 ° C; the liquid mixed material is cast on the surface of the plastic woven cloth through the die head of the screw extruder to form a film layer; the color printing machine prints the color packaging pattern of the packaging bag on the On the coating layer; the punching machine punches micro-shaped ventilation holes on the coating layer; the plastic woven cloth is cut and sewn into finished grain packaging bags by cutting and sewing equipment.

[0018] The speci...

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Abstract

The invention relates to an antibacterial fresh-keeping packaging bag special for rice and a processing method thereof. At present, most of rice packages in China mainly adopt common plastic woven bags to package products, and in order to prevent rice leakage, the outer surfaces of the common plastic woven bags are coated with a coating layer of polyethylene or polypropylene materials. The plastic woven bags have no desinsection and sterilization performances and reduce the guarantee period of the rice. The invention provides a plastic woven bag and a coating layer membrane with vent holes coated on the outer surface, wherein the coating layer membrane material coated on the outer surface of the plastic woven bag consists of the master batch of a zinc oxide crystal whisker nano composite material and the master batch of a polyethylene (PE) or polypropylene (PP) material which are matched together, and the proportion of each component in percentage by weight is that the zinc oxide crystal whisker nano composite material accounts for 1 to 17 percent, and the polyethylene (PE) or the polypropylene (PP) material accounts for 83 to 99 percent. The plastic woven bag is used as the antibacterial fresh-keeping packaging bag special for the rice.

Description

Technical field: [0001] The invention relates to a woven bag packaging product and product processing technology, mainly a special antibacterial and fresh-keeping packaging product for rice and a processing method. Background technique: [0002] At present, ordinary plastic woven bags are mostly used as packaging products in China. In order to prevent rice leakage, the outer surface of ordinary plastic woven bags is also coated with a coating layer of polyethylene or polypropylene material. This type of woven bag does not have insecticidal and sterilizing properties, which reduces the shelf life of rice. In the early 1990s, a kind of polymer coating film structure packaging bag containing insecticides coated on the outer surface of ordinary plastic woven bags appeared in China. The insecticides in the film were slowly released to prevent and kill insects. Effect, the insecticide composition in this coating can only prevent and kill insects, can not inhibit the growth and ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D30/02B65D65/40B65D81/24D06N3/04B32B27/20B32B3/24B32B33/00C08J7/04C09D123/06C09D123/12C09D5/14B29C70/78B29K23/00B29L7/00B29L9/00
Inventor 卢新宪
Owner 卢新宪
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