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Multi-layer co-extruded packaging bag film for drinking water and production method thereof

A multi-layer co-extrusion and production method technology, which is applied in the field of multi-layer co-extrusion packaging bag film for drinking water and its production, can solve the problems of difficult to guarantee hygiene indicators, cross-contamination, incomplete disinfection and sterilization, etc., and achieve the best results Good, fast packing, good tensile strength effect

Inactive Publication Date: 2018-07-06
朝阳佛瑞达科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional drinking water packaging barrels are used repeatedly, disinfection and sterilization are not thorough, and hygiene indicators are difficult to guarantee, which will cause cross-contamination

Method used

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  • Multi-layer co-extruded packaging bag film for drinking water and production method thereof
  • Multi-layer co-extruded packaging bag film for drinking water and production method thereof
  • Multi-layer co-extruded packaging bag film for drinking water and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Preparation and weighing of raw materials: prepare raw material granules according to the components of the nine-layer structure of the multi-layer co-extrusion packaging bag film, and send the raw material granules into the corresponding feeding hopper 10 through a suction device and a weighing device;

[0040] (2) Extruder 11 shear heating: nine extruders 11 respectively shear and heat the raw material particles in the hopper 10 to obtain the raw material in a molten state, and transport it to the die head 13 through the interface;

[0041] (3) Die head 13 extrusion inflation: Extrude and fuse nine layers of molten raw materials at the extrusion port of circular die head 13, and have a film blowing machine inflation device to inflate the film to obtain film bubble 14;

[0042] (4) Air ring 15 cooling: 48 heating points 16 are arranged on the air ring 15, and the film bubble 14 moves upward under the action of traction. 14 The thickness data of one week is transmit...

Embodiment 2

[0062] A kind of multi-layer co-extrusion packaging bag film for drinking water prepared by the preparation method of Example 1, the multi-layer co-extrusion packaging bag film has a total of nine layers of structure, from top to bottom are the first PE layer 1, The second PE layer 2, the third adhesive layer 3, the fourth PA layer 4, the fifth EVOH layer 5, the sixth PA layer 6, the seventh adhesive layer 7, the eighth PE layer 8 and the ninth PE Layer 9.

[0063] The thickness of the first PE layer 1 is 12 μm, the thickness of the second PE layer 2 is 12 μm, the thickness of the third adhesive layer 3 is 6 μm, the thickness of the fourth PA layer 4 is 7 μm, and the fifth EVOH layer 5 The thickness of the PA layer 6 is 5 μm, the thickness of the sixth PA layer 6 is 7 μm, the thickness of the seventh adhesive layer 7 is 6 μm, the thickness of the eighth PE layer 8 is 12 μm, and the thickness of the ninth PE layer 9 is 13 μm.

[0064] The first PE layer is a heat-sealing layer...

Embodiment 3

[0067] A kind of multi-layer co-extruded packaging bag film for drinking water prepared by the preparation method of Example 1, the thickness of the first PE layer 1 is 8 μm, the thickness of the second PE layer 2 is 6 μm, and the third bonding The thickness of the agent layer 3 is 6 μm, the thickness of the fourth PA layer 4 is 4 μm, the thickness of the fifth EVOH layer 5 is 4 μm, the thickness of the sixth PA layer 6 is 4 μm, and the thickness of the seventh adhesive layer 7 is 6 μm , The thickness of the eighth PE layer 8 is 6 μm, and the thickness of the ninth PE layer 9 is 8 μm.

[0068] The first PE layer is a heat-sealing layer, the second PE layer is a protective layer, the third layer is an adhesive layer, the eighth PE layer is a protective layer, and the second PE layer is a protective layer. Nine PE layers are heat-sealing layers.

[0069] 3.5% of the mass of the second PE layer is added to the second PE layer, and the high-efficiency anti-ultraviolet material UV...

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Abstract

The invention discloses a multi-layer co-extruded packaging bag film for drinking water and a production method thereof, and belongs to the technical field of drinking water packaging films. The multi-layer co-extruded packaging bag film is co-extruded from various raw materials through multi-layer coextrusion equipment, and sequentially comprises a first PE layer, a second PE layer, a third adhesive layer, a fourth PA layer, a fifth EVOH layer, a sixth PA layer, a seventh adhesive layer, an eighth PE layer and a ninth PE layer from top to bottom. The conventional injection-moulded barrel fordrinking water is reused, so that the hygienic performance is difficult to guarantee. According to the invention, by a multi-layer co-extrusion technology, different materials are co-extruded in a molten state through a mould head of a film blowing machine to form a novel packaging material with different structures, clear layers, a barrier function and double-sided low-temperature heat sealing performance; the novel packaging material is disposable, has up-to-standard hygienic indexes and meets drinking water standards; meanwhile, the novel packaging material has very good low-temperature heat-sealing performance so that fast packaging is achieved; the novel packaging material is put on the market and is used on a drinking water packaging machine, and feedback from customers shows that the effect is good, the machine operation is smooth, the sealing performance is good, and the shelf life of water is long.

Description

technical field [0001] The invention belongs to the technical field of drinking water packaging films, and in particular relates to a multilayer co-extruded packaging bag film for drinking water and a production method thereof. Background technique [0002] Bag water was first used in the domestic drinking water of NASA's most astronauts. Later, due to the safety, hygiene, flexibility and convenience of bag water, soft-packed drinking water has been popularized in western developed countries very quickly. , 60% of families in France use flexible packaging for drinking water. [0003] The multi-layer co-extruded packaging bag film for drinking water is widely used in the market and is suitable for drinking water packaging. It can completely replace the traditional plastic bucket, the production process is relatively simple, and it can be co-extruded and blow-molded at one time. Traditional drinking water packaging barrels are used repeatedly, and the disinfection and steril...

Claims

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Application Information

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IPC IPC(8): B32B27/06B32B27/08B32B27/32B32B27/34B32B27/30B65D65/40B29C55/28
CPCB29C55/28B32B27/08B32B27/306B32B27/32B32B27/34B65D65/40
Inventor 郭瑞林关成林孙喜用朱军
Owner 朝阳佛瑞达科技有限公司
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