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Long effective single component whitening pulp applied under normal temperature

A single-component, normal temperature technology, applied in textiles, papermaking, fiber treatment, etc., can solve the problem of non-long-term effect, achieve the effect of strong whitening power, fast speed, and simple preparation process

Inactive Publication Date: 2005-01-12
王喜武
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Recently, single-component products have also appeared in the market, but high-temperature steaming and drying are required
And it is neither long-acting nor very warm
Some printing factories try to use sodium hypochlorite as the main extraction agent, but it is still a two-component, and the other component thickener must be used up within 3 to 5 hours after being added, and it will be discarded if it is outdated.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Prepared with sodium hypochlorite, zinc oxide, sodium polyacrylate

[0042] Accurately weigh 34 kg of sodium hypochlorite containing 130 g / L of available chlorine, 15 kg of zinc oxide with a content of 99.7%, and 1 kg of industrial grade sodium polyacrylate. Sodium hypochlorite is placed in a corrosion-resistant mixer and stirred. Take out 2 kg of zinc oxide and mix it with 1 kg of sodium polyacrylate, then slowly throw it into the sodium hypochlorite of the mixer, and continue stirring for 2 hours until there are no sodium polyacrylate particles. The remaining 13kg of zinc oxide is thrown into the material again, and then continue to stir for 1 hour, and the material in the mixer is viscous, uniform slurry. The weight of the slurry is 49.5kg, and the fluidity of the product is 49mm. The product is packed in a plastic bag. When packing, the air in the bag should be discharged and 1 / 4 of the space should be left for the new gas to occupy, and the seal should be heat-se...

Embodiment 2

[0044] Formulated with Sodium Hypochlorite and Zinc Oxide

[0045] Weigh 32.5 kg of sodium hypochlorite containing 128 g / L of available chlorine, put it into a mixer, then slowly add 17.5 kg of zinc oxide with a content of 99.7%, and start stirring. Stir for 1 hour to form a paste. After testing: the fluidity of the product is 55mm. Product is inferior to embodiment 1 except viscosity, and other technical indexes are identical.

Embodiment 3

[0047] Formulated with sodium hypochlorite and sodium polyacrylate

[0048] Weigh 47.5kg of sodium hypochlorite containing 140g / L of available chlorine and put it into the mixer, start stirring, and continuously and slowly add 2.5kg of sodium polyacrylate. Stirring was continued for 3 hours after addition. At this time, it is completely dissolved and stopped. The whitening pulp produced is 49.85kg, and its advantage is that the whitening effect can be seen in time during the printing process. Its disadvantage is that the fine lines are slightly infiltrated.

[0049] The preservation period is 6 months.

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Abstract

This invention is an enduring effect normal temperature simple group bleach paste. It contains: The sodium hypochlorite it contains effective content of chlorine is 120-160g / L, as the main bleach material, the thickener is zinc oxide it content great then or equal to 99.5%, the sticker is polypropylene acid sodium, the ratio of their weight is 100:1-1:10. It may use sodium hypochlorite compose with zinc oxide, the ratio between their weight is 100:30-80, also may use sodium hypochlorite compose with polypropylene acid sodium, the ratio between their weight is 100:100:1-10. The zinc oxide may use the precipitate of barium sulphate, transparent soap instead, the flow ability of this product is 45-55mm.

Description

technical field [0001] The invention relates to the technical field of formula design and preparation of whitening slurry for cotton-dyed colored cloth, sheet material and packaged whitening printing. Background technique [0002] Most of the transmission techniques use carving white powder as the main extraction agent, and whitening agent VBL, whitening agent O, whitening agent W, anthraquinone suspension, etc. as extraction aids. In addition, a variety of auxiliary raw materials need to be added: alcohol, sodium sulfite, caustic soda, zinc oxide powder, adhesive, water, etc. Because the white powder is easy to absorb moisture, it needs to be prepared when it is used. And such products can only appear in two components. It cannot be stored for a long time after it is made into a paste; it needs to be blown dry after printing; it should be steamed at 103-105 ℃ for 7-10 minutes; it needs to be washed with alkali, washed with water and dried in time; and the product contains...

Claims

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Application Information

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IPC IPC(8): D06M15/263
Inventor 王喜武
Owner 王喜武
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