Preparation method for raw material used for bag film with two different water-soluble speeds on different parts

A film bag and water-soluble technology, which is applied in the field of preparation of raw materials for film bags, can solve problems such as lack of use characteristics

Active Publication Date: 2012-09-19
POLYE MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And this environment-friendly clean bag that prior art produces does not have this use characteristic

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A material composition: polyvinyl alcohol-1788: 35kg; polyvinyl alcohol-0588: 15kg; soluble starch: 10kg; composite plasticizer: 25kg (of which: ethylene glycol: 17.5kg; formamide: 6.25kg; Amine: 1.25kg); Water-soluble control regulator: 12.7kg (of which: propylene glycol monostearate: 8kg; sorbitan laurate: 1.7kg; polyoxyethylene (20EO) sorbitan monolaurate : 2.0kg); Oleic acid amide: 0.3kg; Talc powder: 2.0kg.

[0037] Composition of material B: polyvinyl alcohol-1788: 45kg; polyvinyl alcohol-1799: 10kg; soluble starch: 10kg; composite plasticizer: 20kg (of which: ethylene glycol: 12.0kg; caprolactam: 6.0kg; ethylenediamine : 2.0kg ); water-soluble control regulator: 11.8kg (of which: propylene glycol monostearate: 7.6kg; sorbitan laurate: 2.2kg; polyoxyethylene (20EO) sorbitan monolaurate : 1.0kg); stearic acid amide: 0.2kg; talcum powder: 3.0kg.

[0038] Material A and material B are uniformly mixed at a high speed, respectively, and then enter into twin-screw ext...

Embodiment 2

[0040] Composition of A material: polyvinyl alcohol-1788: 30kg; polyvinyl alcohol-0588: 10kg; carboxymethyl starch: 18kg; composite plasticizer: 28kg (of which: glycerol: 16.8kg; carbonamide: 8.4kg; : 2.8kg ); water-soluble control regulator: 12.5kg (of which: tripolyglycerol monostearate: 6.0kg; polyoxyethylene (4EO) sorbitan monostearate: 3.0kg; polyoxyethylene ( 20EO) sorbitan monooleate: 3.5kg); erucamide: 0.2kg; white carbon black: 1.3kg.

[0041] Composition of material B: polyvinyl alcohol-1788: 35kg; polyvinyl alcohol-1799: 10kg; carboxymethyl starch: 20kg; composite plasticizer: 25kg (of which: glycerol: 16.5kg; carbonamide: 6.5kg; triethanolamine : 2.0kg ); water-soluble control regulator: 8.5kg (of which: tripolyglycerol monostearate: 5.0kg; sorbitan laurate: 1.0kg; polyoxyethylene (20EO) sorbitan monolaurate ester: 2.5kg); erucamide: 0.3kg; white carbon black: 1.2kg.

[0042] Material A and material B are uniformly mixed at a high speed, respectively, and then en...

Embodiment 3

[0044] The composition of A material: polyvinyl alcohol-1788: 35kg; polyvinyl alcohol-0588: 20kg; soluble starch: 8.0kg; composite plasticizer: 25kg (of which: ethylene glycol: 12.5kg; polyethylene glycol-400: 5.0kg; acetamide: 6.00kg; diethanolamine: 1.50kg); water-soluble control regulator: 10.0kg (of which: glyceryl monostearate: 4.0kg; ten polyglycerol monostearate: 2.0kg; dehydration Sorbitan Laurate: 2.0kg; Polyoxyethylene (20EO) Sorbitan Monolaurate: 2.0kg); Oleamide: 0.3kg; Talc: 1.7kg.

[0045] The composition of material B: polyvinyl alcohol-1788: 42kg; polyvinyl alcohol-1799: 8.0kg; soluble starch: 10kg; composite plasticizer: 26kg (of which: ethylene glycol: 12.0kg; polyethylene glycol-400: 5.0kg; polyethylene glycol-2000: 1.0kg; caprolactam: 6.0kg; diethanolamine: 2.0kg); water-soluble control regulator: 12.0kg (of which: propylene glycol monostearate: 6kg; ten polyglycerol monostearate Ester: 2.0kg; Sorbitan Laurate: 2.0kg; Polyoxyethylene (20EO) Sorbitan Monola...

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Abstract

The invention relates to a preparation method for raw material used for a bag film with two different water-soluble speeds on different parts. The bag film with two different water-soluble speeds on different parts is prepared from raw materials of two types of different water-soluble speeds. Material A and material B comprise polyving alcohol (PVA), compound plasticizer, starch or starch ether, water-soluble control regulator, smooth opening agent and anti-adhesion agent; the material A and the material B enter a twin screw to be subjected to extrusion granulation after being respectively stirred and mixed at high speed; the material A and the material B respectively pass through films obtained by extrusion and blow molding of two parallel extruders to form two films with water solubility of different types; the water-soluble disintegration time of a film area film formed by the material A is less than 30 seconds; and the water-soluble disintegration time of a film area film formed by the material B is more than 300 seconds. Meanwhile, the two film area films have similar heat-sealing temperature and performance.

Description

technical field [0001] The invention relates to a method for preparing raw materials for film bags, in particular to a method for preparing raw materials for film bags with two different water-soluble speeds. Background technique [0002] At present, the disposable environmentally friendly water-soluble bags prepared by blow molding are extruded and blow-molded by a single extruder. The entire bag is made of the same raw material, so its water-soluble performance and water-soluble speed are consistent. , without the different characteristics of the water solubility of the upper part and the lower part of the bag. In terms of its specific field of use, there are defects and deficiencies in use. Because this bag prepared by the present invention is mainly used in the hygienic cleaning of household pets: a kind of disposable bag for cleaning pet excrement. The specific method of use is as follows. The user first puts gloves into the bag prepared by the present invention, pick...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L29/04C08L23/06C08L3/02C08L3/10C08L3/06C08L3/08C08K13/02C08K5/053C08K5/20C08K5/17C08K3/34C08K3/36B29C47/92B29C48/92
CPCB29C48/0017B29C48/04B29C48/09B29C48/40
Inventor 崔跃飞李保银
Owner POLYE MATERIALS CO LTD
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