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Reduced deep-blue dye and preparing method thereof

A dark blue and dye technology, applied in the field of vat dyes and its preparation, can solve problems affecting production efficiency and achieve the effect of reducing energy consumption and pure and full color light

Inactive Publication Date: 2004-04-14
上海华元实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved in the present invention is to disclose a reduced dark blue dye to overcome the defect that the prior art must first be beaten and milled, which affects production efficiency

Method used

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  • Reduced deep-blue dye and preparing method thereof
  • Reduced deep-blue dye and preparing method thereof

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Embodiment 1

[0030] 30 grams of the compound represented by the formula (1), 40 grams of the compound represented by the formula (2), 40 grams of the compound represented by the formula (3), 85 grams of the dispersant methylnaphthalenesulfonic acid-formaldehyde condensate and 85 grams The lignin and 300 grams of water were placed in a beating pot for 40 minutes to be beaten to obtain a slurry, which was then milled in a sand mill for 20 hours, and then the obtained material was dried at a drying temperature of 180°C to make it The water content is less than 6wt%, the dustproof agent is added, and the mixture is evenly mixed to obtain the dye of the invention.

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Abstract

The present invention discloses a vat dark blue dye and its preparation method. Its composition comprises (by weight portion) portion of vat dark blue, 0.8-2 portions of dispersing agent and 0.8-2 portions of lignin, and also contains (wt%) 0.1%-1.0% of dust-proofing agent. Its preparation method includes the following steps: (1) stirring water, vat dark blue, dispersing agent and lignin, beating and mixing them; (2). grinding; (3) drying; and (4). adding dust-proofing agent, and mixing them uniformly obtain the invented dye which can be directly used to make pigment pad dyeing and pigmentation cheese dyeing so as to reduce energy consumption.

Description

Technical field [0001] The invention relates to a vat dye and a preparation method thereof, in particular to a dye using vat dark blue as an active ingredient and a preparation method thereof. Background technique [0002] Vat dark blue is a widely used vat dye. However, with the continuous development of printing and dyeing technology, the original vat dark blue can no longer meet the needs of relevant departments. Its particle distribution is uneven and its dispersibility is poor. Therefore, when the printing and dyeing industry uses this dye for suspension pad dyeing or suspension cheese dyeing, beating and grinding must be carried out first, which affects production efficiency and printing and dyeing quality. Summary of the invention [0003] The technical problem to be solved by the present invention is to disclose a reduced dark blue dye to overcome the defects in the prior art that the prior art must be beaten and milled, which affects production efficiency. [0004] Anot...

Claims

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Application Information

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IPC IPC(8): C09B67/28
Inventor 黄沪丰易宏坤张振家
Owner 上海华元实业有限公司