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A kind of preparation method and application of gelatin iron chelate

A technology of chelate and gelatin iron, which is applied in dyeing, textiles and papermaking, and can solve the problems of cotton having no affinity and being unable to dye cotton

Active Publication Date: 2020-10-27
SHAOXING JIANG HUA CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, cochineal has no affinity for cotton and basically cannot dye cotton

Method used

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  • A kind of preparation method and application of gelatin iron chelate
  • A kind of preparation method and application of gelatin iron chelate
  • A kind of preparation method and application of gelatin iron chelate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) Add 25g of gelatin and 125g of distilled water into a four-neck reaction flask, raise the temperature to 40°C and stir for 20min. Add 1.1 g of ferrous sulfate heptahydrate and 5 g of distilled water into a beaker to dissolve, then pour into a separatory funnel. The material in the separatory funnel was added to the four-necked reaction flask at a rate of 1 drop per second. For the first time, use 30% sodium hydroxide solution to adjust the pH value of the reaction solution to 11, and react at 30°C for 1 hour; Adjust the pH value of the reaction solution to 11 with sodium hydroxide solution, react at 30°C for 1 hour, cool to room temperature, and discharge to obtain an orange-red solution of gelatin iron chelate.

[0036] (2) Preparation of bis(3-chloro-2-hydroxypropyl)tetramethylethylenediammonium dichloride: add 49g of 18% hydrochloric acid into a 250mL four-necked reaction flask, start stirring, and slowly dissolve the four Add 29 g of methylethylenediamine into...

Embodiment 2

[0045] (1) Preparation of gelatin iron chelate: with embodiment 1.

[0046] (2) Preparation of two (3-chloro-2-hydroxypropyl) tetramethyl ethylene diammonium dichloride: same as Example 1.

[0047] (3) Cationic modification of cotton cloth: same as Example 1.

[0048] (4) the orange red solution of 350g gelatin iron chelate that step (1) is made is dissolved in water and is made gelatin iron chelate solution and is settled to 1 liter, makes gelatin iron chelate treatment liquid, cationic cotton cloth two Dipping and padding (room temperature, 80% liquid retention rate), pre-baking (105°C, 5min), and baking (150°C, 3min) to obtain zwitterionic cotton cloth.

[0049] (5) Bath ratio 1:50, add water, amaranth 1% owf and unmodified cotton cloth or zwitterionic cotton cloth 3g, heat up to 80°C and keep it warm for 45min, wash in cold water, and dry at 80°C.

[0050] The test results are shown in Table 2.

[0051] Table 2 Unmodified cotton and modified cotton amaranth dyeing depth...

Embodiment 3

[0055] (1) Add 50 g of gelatin and 125 g of distilled water into a four-neck reaction flask, raise the temperature to 40° C. and stir for 20 min. Add 1.3 g of ferrous sulfate heptahydrate and 5 g of distilled water into a beaker to dissolve, then pour into a separatory funnel. The material in the separatory funnel was added to the four-necked reaction flask at a rate of 1 drop per second. For the first time, use 30% sodium hydroxide solution to adjust the pH value of the reaction solution to 11, and react at 30°C for 1 hour; Adjust the pH value of the reaction solution to 11 with sodium hydroxide solution, react at 30°C for 1 hour, cool to room temperature, and discharge to obtain an orange-red solution of gelatin iron chelate.

[0056] Other steps are with embodiment 1.

[0057] The test results are shown in Table 3.

[0058] Table 3 Test results of cochineal red dyeing depth and fastness of unmodified cotton cloth and modified cotton cloth

[0059]

[0060] It can be ...

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Abstract

The invention provides a preparation method of gelatin iron chelate and application thereof. The preparation method comprises the following steps: modifying cotton cloth with bis(3-chloro-2-hydroxypropyl) tetramethyldiammonium dichloride and sodium hydroxide, grafting biquaternary ammonium group by the cotton cloth so as to obtain cationic cotton; modifying the cationic cotton by using the gelatiniron chelate, grafting proteins and iron ions by cotton fibers, and firmly binding proteins and iron ions and cochineal or amaranth molecules, so that the dyeing depth and fastness of the cochineal or amaranth of cotton is improved. The modification method provides a novel pathway for solving the problem that natural dyestuffs have low dyeing rate and poor fastness on the cotton cloth, also provides a new thought for dyeing the cotton cloth by the natural dyestuffs, and has extremely wide application prospects.

Description

technical field [0001] The invention belongs to the field of modification and processing of natural products, and in particular relates to a preparation method and application of gelatin iron chelate. Background technique [0002] Nowadays, the printing and dyeing industry is facing many problems such as the prohibition of harmful chemical substances, environmental pollution, and low added value of products. Out of the consideration of environmental protection and sustainable development and people's pursuit of ecological textiles and green production technology, the utilization of biomass materials has re-entered people's vision. Cotton and natural dyes have advantages over synthetic fibers and synthetic dyes due to their good biodegradability, biological and environmental compatibility, and antibacterial properties. [0003] However, the dyes currently used for cotton dyeing are synthetic dyes such as reactive dyes and vat dyes. During the use of these dyes, a large amoun...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08H1/00D06P1/34D06P3/60D06P1/44D06P1/46D06P1/66
CPCC08H1/00D06P1/34D06P1/445D06P1/46D06P1/66D06P3/60
Inventor 刘建平张春花曹红梅
Owner SHAOXING JIANG HUA CHEM
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