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Environment-friendly water-proof packaging bag and manufacturing method thereof

A production method and packaging bag technology, which is applied in the field of packaging, can solve the problems of unsatisfactory surface appearance, poor waterproof vapor permeability, dull appearance and visual effects, etc., and achieve excellent waterproof and waterproof vapor transmission effects, and changing colors. Bright and eye-catching, enhance the visual effect of the appearance

Active Publication Date: 2011-10-19
常熟市双乐彩印包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, the applicant listed above, but not limited to, as packaging bags for food, clothing, medicine, books, periodicals, gifts, handicrafts and daily necessities, etc., and have portable functions generally exist in the following general Disadvantages: First, the water vapor permeability is poor, especially the water resistance; second, it is not environmentally friendly, because it is usually used with toxic and harmful ingredients such as benzene, toluene, methanol, formaldehyde, styrene, methylene chloride, carbon tetrachloride and ethylene dichloride. Adhesives such as amines compound the film with the substrate (copper sheet paper or cardboard); the third is poor tensile strength resulting in lack of durability; the fourth is the appearance and visual effects are dull, without a sense of concave-convex layering, three-dimensionality and height Shiny, gorgeous and eye-catching texture, which cannot meet people's constant pursuit of beautiful packaging surface

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A) Raw material preparation, the selected gram weight is 100g / m 2 Coated paper and a biaxially oriented polypropylene (BOPP) film with a thickness of 1.5 μm;

[0030] B) Prepare the bag base paper, first apply the environmentally friendly water-based adhesive to one side of the coated paper selected from step A) by roller coating or other similar methods such as spraying, and then compound the BOPP film selected from step A) On the coated paper that is coated with environmental protection water-based adhesive, obtain bag base paper, the environmental protection water-based adhesive in this step is preferably but not limited to use the trade mark that is LT988 type vinyl polyurethane by China Guangdong Province Shenzhen Hongfengxing Chemical Co., Ltd. to produce and sell Emulsion, the main component of this emulsion is polyvinyl alcohol (EVA), the pH is 6.5-8.5, and the viscosity is 15-25S at 25°C. Vinyl polyurethane emulsion is also called vinyl polyurethane adhesive, w...

Embodiment 2

[0035] Only change the grammage of the coated paper in step A) to 250g / m 2 , change the thickness to 1.8mm polyvinyl chloride (PVC) film; change the weight portion ratio of the glitter powder in step D) to UV printing ink to 1: 3, change the thickness of the glitter powder layer to 35 μm, and the ultraviolet The drying temperature of the light curing machine is changed to 120°C, and the travel speed of the bag sheet is changed to 15m / min. All the other are the same as the description to embodiment 1.

Embodiment 3

[0037] Only change the grammage of the coated paper in step A) to 180g / m 2 , the film is changed to a polyethylene terephthalate (PET) film with a thickness of 1.6 μm; the weight ratio of the glitter powder in step D) and UV ink is changed to 1: 4, and the glitter powder The thickness of the layer was changed to 100 μm, the drying temperature of the ultraviolet light curing machine was changed to 85°C, and the travel speed of the bag sheet was changed to 5m / min. All the other are the same as the description to embodiment 1.

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PUM

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Abstract

The invention discloses an environment-friendly water-proof packaging bag and a manufacturing method thereof, belonging to the technical field of packing materials. The packaging bag is manufactured by taking a chrome paper or a card paper as the base material, compounding a thin film with an environment-friendly water-based adhesive and combining a Glitter powder layer on the outer surface of the compounded thin film; drying and die-cutting the product; and making through a bag making machinery. The invention has the advantages of excellent effect for preventing water or vapour from being transmitted, environment protection and no harm to the human body and improved tensile intensity because of the combination of the base material, the thin film and the Glitter powder. The Glitter powderlayer has strong three-dimensional effect, rich colour change and twinkling effect so that the visual impact of the packaging bag is improved.

Description

technical field [0001] The invention belongs to the technical field of packaging, and in particular relates to an environment-friendly waterproof packaging bag, and also relates to a manufacturing method of the waterproof packaging bag. Background technique [0002] Packaging bags are also customarily called handbags, which are widely used in packaging such as food, clothing, medicine, books, gifts and handicrafts, etc. The known packaging bags are mainly made of coated paper and white card paper (White Card Paper) as the base layer , and then compound a layer of polyvinyl chloride film (PVC film), polypropylene film (OPP film), polyethylene terephthalate on the surface of the substrate layer and the surface facing outward in the use state. film (PET film) or biaxially oriented polypropylene film (BOPP film), and then cut (usually by die-cutting) to make finished packaging bags. The aforementioned concept of white cardboard refers to the general term for white thick paper s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65D30/02B32B27/10B44C5/04
Inventor 邹明言
Owner 常熟市双乐彩印包装有限公司
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