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All-plastic composite toothpaste tube sheet suitable for being recycled and production method of all-plastic composite toothpaste tube sheet

A production method and technology of toothpaste tubes, applied in all-plastic composite toothpaste tube sheet and its production field, can solve the problems of low value of recycling and reuse, difficulty in recycling, etc., achieve good forming effect, improve heat sealing strength, The effect of high surface gloss

Pending Publication Date: 2022-02-18
HUANGSHAN NOVEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the daily chemical toothpaste industry, currently used tube packaging materials contain aluminum foil or aluminized film composite materials that are not conducive to recycling. This type of structure is difficult to recycle, and the value of recycling and reuse is low. The existing toothpaste tube packaging Material needs improvement

Method used

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  • All-plastic composite toothpaste tube sheet suitable for being recycled and production method of all-plastic composite toothpaste tube sheet
  • All-plastic composite toothpaste tube sheet suitable for being recycled and production method of all-plastic composite toothpaste tube sheet
  • All-plastic composite toothpaste tube sheet suitable for being recycled and production method of all-plastic composite toothpaste tube sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Such as figure 1 As shown, an all-plastic composite toothpaste tube sheet suitable for recycling, the total thickness of the sheet is 232-164 μm, and the surface film 10, the coating layer 20 and the inner film 30 are sequentially formed from the outside to the inside according to the thickness ratio of 5.7:1. : 5.7 composition.

[0052] The surface film 10 is composed of 52.8wt% high-density polyethylene, 30.6wt% metallocene polyethylene, 13.2wt% white color masterbatch and 3.4wt% processing aid. Among them, the high-density polyethylene is B4460AB high-density polyethylene of Sabic company, the metallocene polyethylene is Exxon company's brand 3505MC and Japan's Mitsui brand SP1520 metallocene polyethylene, and the white masterbatch is UF880M of Dainippon Ink Chemical Co., Ltd. Color masterbatch, the processing aid is the brand 10991-K processing aid of An Color Matching Company.

[0053] The coating layer 20 is 100wt% Dow chemical grade 722S low density polyethylen...

Embodiment 2

[0068] The production method steps of the all-plastic composite toothpaste tube sheet suitable for recycling in embodiment 1 are as follows:

[0069] S1. Prepare the raw materials of each layer in the surface film 10 according to the proportion, put them into the mixer and mix them evenly, and then send them into the extruder to melt, and follow the first layer 11, the second layer 12 to the third layer 13 in sequence Arrangement order, use extruder to co-extrude blown film, make surface film 10.

[0070] In this process, the extruder screw diameter is 90mm, 100mm and 90mm, and the die head diameter is 50mm; the temperature setting of the extruder is as follows in Table 1:

[0071]

[0072] The above-mentioned layers of raw materials are extruded at high temperature by an extruder to form a melt, and then pass through a filter screen consisting of three layers of 100 mesh, 150 mesh, and 100 mesh. Then pass through the die distributor to form a ring-shaped bubble tube film,...

Embodiment 3

[0086] Composite sheets prepared by the present invention are recorded as experimental groups 1-3, and the composition and structure of the inner film 30 of the composite sheets are adjusted as comparison groups 1 and 2 for performance testing.

[0087] The compositional data of experimental groups 1-3 and comparative groups 1 and 2 are shown in Table 3 below, and the numbers in the table are all mass fractions.

[0088]

[0089] The main physical performance indicators of the above five groups of sheets were tested, and the results are shown in Table 4 below:

[0090]

[0091] It can be seen from Table 4 that the tensile strength of the composite sheet increases with the increase of the ratio of metallocene polyethylene, and the heat sealing performance of the composite sheet also increases accordingly. From the data of the experimental group and the comparative group, it can be seen that the drop impact strength has been improved to a certain extent with the adjustment...

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Abstract

The invention relates to the field of packaging, in particular to an all-plastic composite toothpaste tube sheet suitable for being recycled and a production method of the all-plastic composite toothpaste tube sheet. The sheet sequentially comprises a surface film, a coating layer and an inner film from outside to inside, wherein the surface film is prepared from 52.8 wt% of high-density polyethylene, 30.6 wt% of metallocene polyethylene, 13.2 wt% of white masterbatch and 3.4 wt% of a processing aid; the coating layer is made of low-density polyethylene; and the inner film is composed of 34 wt% of high-density polyethylene, 34 wt% of metallocene polyethylene, 18 wt% of bonding resin and 14 wt% of ethylene-vinyl alcohol polymer. The sheet provided by the invention has good physical performance indexes, is suitable for high-speed surface layer printing, has good barrier property, can effectively protect packaged contents, and is beneficial to long-time storage of products. The formula materials of the sheet conform to food hygiene and safety standards, so the sheet can be used for daily chemical packaging and can also be widely applied to the fields of food packaging and the like.

Description

technical field [0001] The invention relates to the field of packaging, in particular to an all-plastic composite toothpaste tube sheet suitable for recycling and a production method thereof. Background technique [0002] In the daily chemical packaging industry, various packaging materials and different printing patterns attract consumers. However, with the change of people's consumption concept and the improvement of the pursuit of quality of life, the requirements for packaging grades have also changed. And with the increasing awareness of international environmental protection, green, low-carbon and recyclable product packaging has become a trend. [0003] At present, a large part of the aluminum-plastic packaging structure of daily chemical products is changing to a recyclable material structure, especially under the requirements of new environmental protection laws and regulations, manufacturers have raised their attention to product packaging materials and packaging ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/32B32B27/30B32B27/08B32B27/06B32B7/12B29C48/08B29C48/21B29C48/49B65D65/40B65D65/42
CPCB32B27/32B32B27/306B32B27/08B32B7/12B29C48/08B29C48/21B29C48/49B65D65/40B65D65/42B32B2250/246B32B2307/31B32B2307/558B32B2307/7244B32B2307/7246B32B2307/75B32B2439/40
Inventor 胡忠立汪学文姚顺查显宇张红斌
Owner HUANGSHAN NOVEL
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