A kind of preparation method of environment-friendly laundry ball water-soluble film

A technology of laundry balls and films, which is applied in the field of preparation of environmentally friendly laundry ball water-soluble films, achieving the effect of low cost

Active Publication Date: 2020-07-14
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are no patents and literature reports on thermoplastic starch-based composite materials used as water-soluble membranes for laundry balls at home and abroad.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) First dissolve 4.5% glycerol, 15% water-based polyurethane and 0.5% nisin at 40°C, and gradually add 80% dry cornstarch. Then, the starch mixture was prepared by thoroughly mixing with an overhead stirrer in a constant temperature water bath at 80° C. at 500 rpm for 1 h, and put it into a sealed polyethylene plastic bag to balance for a day and a night.

[0025] (2) Melt and extrude the mixture of corn starch, water-based water-based polyurethane and glycerin through a single-screw extruder at a three-zone barrel temperature of 100°C-120°C-120°C and a screw speed of 50rpm to obtain the product namely It is modified thermoplastic starch (MTPS).

[0026] (3) The modified thermoplastic starch is ground by means of a grinder to prepare modified starch granules.

[0027] (4) Preparation of modified thermoplastic starch-based composite materials: The granules of modified thermoplastic starch are hot-pressed through a hot press equipped with a cold water circulation syste...

Embodiment 2

[0029] (1) First dissolve 4% ethylene glycol, 15% water-based polyurethane and 1% pectin at 40°C, and gradually add 80% dry tapioca starch. Then, the starch mixture was prepared by thoroughly mixing with an overhead stirrer in a constant temperature water bath at 90° C. at 600 rpm for 1 h, and put it into a sealed polyethylene plastic bag to balance for one day and one night.

[0030] (2) Melt and extrude the mixture of tapioca starch, water-based water-based polyurethane and ethylene glycol through a co-rotating screw extruder at a three-zone barrel temperature of 110°C-120°C-130°C and a screw speed of 100rpm to obtain the product That is modified thermoplastic starch (MTPS).

[0031] (3) The modified thermoplastic starch is ground by means of a grinder to prepare modified starch granules.

[0032] (4) Preparation of modified thermoplastic starch-based composite materials: hot-press the modified thermoplastic starch granules through a hot press equipped with a cold water cir...

Embodiment 3

[0034] (1) First dissolve 9% sorbitol, 20% water-based polyurethane and 1% grape seed extract at 40°C, and gradually add 70% dry cornstarch. Then, the starch mixture was prepared by thoroughly mixing for 1 h at 700 rpm in a constant temperature water bath at 90 °C with an overhead stirrer, and put it into a sealed polyethylene plastic bag to equilibrate for 48 h.

[0035] (2) Melt and extrude the mixture of cornstarch, water-based water-based polyurethane and sorbitol through a single-screw extruder at a three-zone barrel temperature of 100°C-120°C-130°C and a screw speed of 100rpm to obtain the product as Modified thermoplastic starch (MTPS).

[0036] (3) The modified thermoplastic starch is ground by means of a grinder to prepare modified starch granules.

[0037] (4) Preparation of modified thermoplastic starch-based composite materials: The granules of modified thermoplastic starch are hot-pressed through a hot press equipped with a cold water circulation system. The hot-...

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PUM

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Abstract

The invention relates to a preparation method of an environment-friendly washing ball water-soluble film, which belongs to the technical field of biomass packaging materials. The water-soluble film adopting water-soluble film using thermoplastic starch as a base material to wrap high-concentrated washing liquid into washing balls, and a small washing ball has twice cleaning capacity and is equal to an amount for cleaning a barrel. The emergence of the washing ball meets the requirements of the market and users, and the washing ball not only can achieve a cleaning and sterilizing washing effect by virtue of water molecular activation, but also can enable consumers to be away from chemical products and can ensure the body health of the consumers. Meanwhile, the washing ball has no chemical residue and can greatly reduce the environmental pollution caused by the chemical lotions.

Description

technical field [0001] The invention relates to a preparation method of an environment-friendly laundry ball water-soluble film, belonging to the technical field of biomass packaging materials. Background technique [0002] In recent years, with the improvement of people's economic living standards, the total amount of clothes per person has risen rapidly. At the same time, people's definition of "clean" is also changing. In addition to the basic cleaning of dirt on clothes, there is also a psychological need for cleaning worn clothes. As a result, people change clothes more frequently, and wash clothes more frequently. Compared with young people and men who are not good at doing housework, they don't know much about the amount of washing powder or liquid detergent when washing clothes by machine. As a result, the laundry ball appeared under the dual expectations of the market and users: on the one hand, the environmentally friendly water-soluble film of the laundry ball i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L3/02C08L75/04C08K5/053B29B9/06B29C43/58
CPCB29B9/06B29C43/58B29C2043/5808B29C2043/5816C08J5/18C08J2303/02C08J2475/04C08K2201/014C08L3/02C08L2201/06C08L75/04C08K5/053
Inventor 龙柱陈杰
Owner JIANGNAN UNIV
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