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Environment-friendly phosphorus-free washing powder and preparation process thereof

A washing powder and environmental protection technology, which is applied in the field of environmentally friendly and phosphorus-free washing powder and its preparation technology, can solve problems such as damage to fabrics, resistance to hard water, etc., and achieve the effects of improving permeability, reducing irritation, and improving decontamination ability.

Active Publication Date: 2020-08-18
浙江美生日化用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There is following defect in the above-mentioned prior art scheme: it adopts sodium linear alkylbenzene sulfonate as main surfactant, although the decontamination ability of sodium linear alkylbenzene sulfonate is stronger, but it has a larger The disadvantage is that it is not resistant to hard water
In order to improve the hard water resistance of washing powder, a large amount of chelating agents must be added to the washing powder formula, such as sodium tripolyphosphate and zeolite added in the above technical scheme, but sodium tripolyphosphate has been banned as a phosphorus-containing additive at present. However, zeolite is insoluble in water and is easy to deposit on the fabric to form ash, which will damage the fabric.

Method used

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  • Environment-friendly phosphorus-free washing powder and preparation process thereof
  • Environment-friendly phosphorus-free washing powder and preparation process thereof
  • Environment-friendly phosphorus-free washing powder and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] The materials used in this example were all routinely purchased from the market.

[0080] The invention discloses an environmentally friendly and phosphorus-free washing powder, which comprises the following components by weight and number:

[0081]

[0082] Wherein, the sodium percarbonate is coated with a stabilizer for improving its stability, and according to the weight ratio, sodium percarbonate:stabilizer=1:1. The stabilizer is composed of 3wt% polyacrylamide gel and citric acid monohydrate, and according to the weight ratio, 3wt% polyacrylamide gel: citric acid monohydrate=100:3.

[0083] The technique that stabilizer is coated on the sodium percarbonate specifically comprises the following process steps:

[0084] S1. Spray polyacrylamide gel onto sodium percarbonate in a fluidized bed at a spraying temperature of 60°C, and dry for 2 minutes after spraying to obtain a semi-finished product A;

[0085] S2. Spray solid citric acid monohydrate powder into the f...

Embodiment 2

[0113] The difference between Example 2 and Example 1 is that the sodium percarbonate is not coated with a stabilizer, but is directly added to the washing powder.

[0114] The difference between embodiment 3-6 and embodiment 1 is that the weight and number ratio of each component in the washing powder is calculated as the following table:

[0115]

Embodiment 7

[0116] The difference between embodiment 7 and embodiment 1 is that no CMC-Na is added in the washing powder.

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Abstract

The invention relates to an environment-friendly phosphorus-free washing powder and a preparation process thereof, and belongs to the technical field of washing powder. The environment-friendly phosphorus-free washing powder comprises the following components in parts by weight: 10-30 parts of AES; 20 to 40 parts of baking soda; 1-5 parts of sodium silicate; 1-5 parts of a maleic acid-acrylic acidpolymer; 20 to 50 parts of anhydrous sodium sulfate; 0 to 2 parts of CMC-Na; 0-10 parts of sodium percarbonate; 0 to 3 parts of JFC; and 0-3 parts of an additive; wherein sodium percarbonate is coated with a stabilizer for improving the stability of sodium percarbonate. The washing powder is more environment-friendly on the premise that the dirt-removing performance is guaranteed.

Description

technical field [0001] The invention relates to the technical field of washing powder, in particular to an environmentally friendly and phosphorus-free washing powder and a preparation process thereof. Background technique [0002] The English of washing powder is Washing powder. Synthetic detergent is mainly composed of surfactant, and it is equipped with appropriate amount of builders with different functions. Laundry powder refers to powdery (granular) synthetic detergents. [0003] For example, the Chinese invention patent application document with the application publication number CN103571641A discloses a washing powder consisting of the following components and parts by weight: sodium linear alkylbenzene sulfonate 25; sodium tripolyphosphate 15; zeolite 15; Triethanolamine phenyl sulfonate 8; fatty alcohol polyoxyethylene ether 5; sodium hexametaphosphate 15; natron 10; sodium carboxymethylcellulose 2; essence 0.05; sodium sulfate 50; asparagus extract 5; ginseng Ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D1/83C11D1/29C11D3/10C11D3/08C11D3/37C11D3/04C11D3/22C11D3/39C11D3/20C11D3/50C11D3/40C11D3/386C11D3/60C11D17/06C12N11/10C12N11/087C12N11/089C12N9/08
CPCC11D1/29C11D1/72C11D1/83C11D3/046C11D3/08C11D3/10C11D3/2086C11D3/222C11D3/225C11D3/3761C11D3/3769C11D3/38609C11D3/38636C11D3/38672C11D3/394C11D3/3942C11D3/40C11D3/50C11D17/06C12N9/0065C12N11/10C12Y111/01006C12N11/087C12N11/089
Inventor 张栋栋郑鹏波陆伟明
Owner 浙江美生日化用品有限公司
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