CN100408735C - Process for preparing water soluble plant cellulose (thread) and color variable water soluble plant cellulose (thread) - Google Patents
Process for preparing water soluble plant cellulose (thread) and color variable water soluble plant cellulose (thread) Download PDFInfo
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- CN100408735C CN100408735C CNB2003101102343A CN200310110234A CN100408735C CN 100408735 C CN100408735 C CN 100408735C CN B2003101102343 A CNB2003101102343 A CN B2003101102343A CN 200310110234 A CN200310110234 A CN 200310110234A CN 100408735 C CN100408735 C CN 100408735C
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Abstract
The present invention relates to a water-soluble plant cellulose (threads) preparation method which comprises the steps of the dissolution of plant cellulose (threads) in the mixed liquid of a water solution with sodium hydroxide or potassium hydroxide, alkalization in inert atmosphere, etherealization in a chloroacetic acid cyclohexanone solution, liquid elimination and dryness. The water-soluble plant cellulose (threads) are tied to a negative plate in an electrolytic tank a metal saline solution which can generate stable color protosalt through electrolysis and the mixed liquid of cyclohexanone are used as electrolysing solutions, the protosalt is deposited through electrolysis, and water-soluble plant cellulose (threads) with a first changed color is obtained through the liquid elimination and the dryness. Other metal saline solutions which can generate stable color protosalt through electrolysis and the mixed liquid of cyclohexanone are used as electrolysing solutions on the basis of the water-soluble plant cellulose (threads) with a first changed color, other kinds of protosalts are deposited through electrolysis to cover the previous protosalt, and water-soluble plant cellulose (threads) with a second changed color or multiple changed colors is obtained through the liquid elimination and the dryness. Prepared products have the advantages of good water solubility and obvious changed colors.
Description
Technical field
The invention belongs to water-soluble plant cellulose or filamental thread preparing technical field.
Background technology
Water-soluble plant cellulose, filamental thread have can be in water dissolution characteristics fast, and have no side effect after the dissolving, can directly discharge and can not cause any pollution environment, be with a wide range of applications.During producing, existing water-soluble plant cellulose, filamental thread generally adopt the batch production method of substep, segmentation, soon plant cellulose, filamental thread are put into certain density soda lye intensification, dipping, slough free alkali lye then, place more than 20 hours, fully after the degreasing, pulverize again and the etherificate still of packing in add that an amount of chloroacetic acid heats up, etherificate is carried out in pressurization.Put into neutralizing tank neutralization, washing, oven dry after the reaction end, pulverize, pack.In this technical process, plant cellulose, filamental thread divide many batches to alkalize, take off liquid, and it is inhomogeneous to alkalize, and each batch contains free alkali number difference; Skimming processes is not only a degradation process, also is the process that further alkalizes, because each batch contains free alkali number difference, and each position temperature of living in and different with the air contact condition, it is widely different to alkalize; Production cycle is long, and variable factor is many, and constant product quality is difficult to guarantee that the contaminating impurity chance increases.
Summary of the invention
The object of the invention is to provide the method for the good water-soluble plant cellulose (line) of a kind of continuous preparation water soluble characteristic; Its further purpose is to provide the water-soluble plant cellulose of a kind of variable color (line) preparation method.
For reaching above-mentioned purpose, the present invention adopts following technical scheme: water-soluble plant cellulose (line) preparation method, comprise the steps: that (1) get plant cellulose (line) the 45-55 gram of string content more than 90%, add in the mixed liquor of 80-100 milliliter cyclohexanone and NaOH or potassium hydroxide aqueous solution, in inert atmosphere, reacted 20-30 minute in 35-45 ℃, be warming up to 65-75 ℃ of reaction 35-45 minute again, NaOH or potassium hydroxide solution weight percent concentration are 85-95%, and cyclohexanone and NaOH or potassium hydroxide solution volume ratio are (4.5-5): 1; (2) discharge inert gas, add 110-130 milliliter monoxone cyclohexanone solution, 65-75 ℃ of reaction 35-45 minute, cyclohexanone and monoxone volume ratio were (4.5-5.5): 2; (3) take off liquid, drying.
Monoxone is selected trichloroacetic acid or inferior monoxone in the step (2), adds dye leveller 10-15 gram in the step (2).
Plant cellulose (line) is selected gossypin (line), and inert gas is selected nitrogen for use.
The water-soluble plant cellulose of variable color (line) preparation method, it is characterized in that, comprise the steps: that (1) get plant cellulose (line) the 45-55 gram of string content more than 90%, add in the mixed liquor of 80-100 milliliter cyclohexanone and NaOH or potassium hydroxide aqueous solution, in inert atmosphere, reacted 20-30 minute in 35-45 ℃, be warming up to 65-75 ℃ of reaction 35-45 minute again, NaOH or potassium hydroxide solution weight percent concentration are 85-95%, and cyclohexanone and NaOH or potassium hydroxide solution volume ratio are (4.5-5): 1; (2) discharge inert gas, add 110-130 milliliter monoxone cyclohexanone solution, 65-75 ℃ of reaction 35-45 minute, cyclohexanone and monoxone volume ratio were (4.5-5.5): 2; (3) take off liquid, the dry water-soluble plant cellulose (line) that gets; (4) get above-mentioned water-soluble plant cellulose (line) bondage in electrolytic cell on the minus plate, with the aqueous metal salt that can produce stable colored protosalt through electrolysis and the mixed liquor of cyclohexanone is electrolyte, go up the electrolytic deposition protosalt at water-soluble plant cellulose (line), take off the heavily water-soluble plant cellulose of variable color (line) of liquid, dry one.
Based on one heavily the water-soluble plant cellulose of variable color (line), can produce the aqueous metal salt of stable colored protosalt and the mixed liquor of cyclohexanone is an electrolyte with other through electrolysis, a kind of protosalt before water-soluble plant cellulose (line) is gone up other protosalt coverings of electrolytic deposition takes off liquid, doublely to the water-soluble plant cellulose of multiple variable color (line) dry.
The molten gossypin (line) of fetching water is spread bondage out in electrolytic cell on the minus plate, mixture with cyclohexanone and ferric sulfate aqueous solution is that electrolyte carries out electrolysis, go up deposition one deck ferrous sulfate at water-soluble gossypin (line), take off liquid, the dry water-soluble gossypin of inferior redness (line) that gets.
Get inferior red water-soluble gossypin (line) and spread bondage out in electrolytic cell on the minus plate, mixture with cyclohexanone and copper sulfate solution is that electrolyte carries out electrolysis, red water-soluble gossypin (line) is gone up deposition one deck cuprous sulfate in the Asia, takes off liquid, the dry green water-soluble gossypin (line) that gets.
In cyclohexanone and the ferric sulfate aqueous solution mixed liquor, the ferric sulfate aqueous solution weight percent concentration is 20-45%, and cyclohexanone and ferric sulfate aqueous solution volume ratio are (15-20): 1, and electrolysis is at room temperature carried out, and decomposition voltage is 12 volts, electrolysis time 35-45 minute.
In cyclohexanone and the copper sulfate solution mixed liquor, the copper sulfate solution weight percent concentration is 25-50%, and cyclohexanone and copper sulfate solution volume ratio are (15-20): 1, and electrolysis is at room temperature carried out, and decomposition voltage is 24 volts, electrolysis time 40-50 minute.
Add in per 1000 milliliters of electrolyte and increase dark dye leveller 10-15 gram.
The preparation method of water-soluble plant cellulose (line) changes prior art discontinuous formula preparation method for continuous preparation method among the present invention, make that plant cellulose (line) successively alkalizes continuously, etherification reaction in same reactor, shorten reaction time, the production efficiency height; Alkalization, etherification reaction carry out continuously, and the raw material utilization is abundant, and alkalization is complete, and etherificate substitution value height and substitution value are even, and the water-soluble plant cellulose of gained (line) dissolving is complete, dissolution velocity is fast.Test detects and shows that under 21 ℃ of temperature, humidity 75% condition, 42 three strands water-soluble cotton thread samples of 1 centimeter length can be dissolved in water fully at 3-5 in second.Utilize the water-soluble plant cellulose of the present invention (line), can adopt general fabric colouring method, before alkalization, dye, also can be at the etherificate poststaining.Utilize the water-soluble plant cellulose of the present invention (line), also can adopt electrolysis to make the water-soluble plant cellulose of variable color (line), chameleon fibre element (line) can be a heavily variable color, also can be two-fold to multiple variable color.Also can carry out electrochemistry dyeing again after water-soluble plant cellulose (line) the materialization dyeing of the present invention's preparation, the preparation method is simple, and color changeable effect is good.Test detects and to show, under 18 ℃ of temperature, humidity 70% condition, the green of 42 three bursts pure electrochemistry dyeing of the 1 centimeter length look cotton thread sample that reddens can be reddened and is dissolved in water by green in second at 5-6.The water-soluble plant cellulose of gained of the present invention (line) reaches and can be made into false proof articles for use (anti-false trademark that for example has water-soluble cotton thread) by its fabric of making, is used for product false proof and detects; Can be made into the blood coagulation gauze and be used for hemostasis; Also can be made into disposable sanitary articles such as napkin, tablecloth use.The water-soluble string of variable color is used for false proof (anti-false trademark that for example has the water-soluble cotton thread of variable color), better effects if.
The specific embodiment
Embodiment 1, water-soluble cotton thread preparation method, comprise the steps: cotton thread 45 grams of (1) taking cotton fiber content 90%, add in the mixed liquor of 100 milliliters of cyclohexanone and sodium hydrate aqueous solution, in blanket of nitrogen, reacted 30 minutes in 45 ℃, be warming up to 75 ℃ of reactions 45 minutes again, the sodium hydroxide solution weight percent concentration is 90%, and cyclohexanone and sodium hydroxide solution volume ratio are 5: 1; (2) discharge nitrogen, add 130 milliliters of inferior monoxone cyclohexanone solution and LTC dye leveller (Shang Haixi reaches chemical industry Co., Ltd and produces) 15 grams.75 ℃ of reactions 45 minutes, cyclohexanone was 5.5: 2 with time monoxone volume ratio; (3) take off liquid, dry water-soluble cotton thread.
Embodiment 2, water-soluble cotton thread preparation method, comprise the steps: cotton thread 50 grams of (1) taking cotton fiber content 92%, add in the mixed liquor of 90 milliliters of cyclohexanone and sodium hydrate aqueous solution, in blanket of nitrogen, reacted 25 minutes in 40 ℃, be warming up to 70 ℃ of reactions 40 minutes again, the sodium hydroxide solution weight percent concentration is 90%, and cyclohexanone and sodium hydroxide solution volume ratio are 4.5: 1; (2) discharge nitrogen, add 120 milliliters of inferior monoxone cyclohexanone solution and LTC dye leveller (Shang Haixi reaches chemical industry Co., Ltd and produces) 10 grams, 70 ℃ of reactions 40 minutes, cyclohexanone was 5.0: 2 with inferior monoxone volume ratio; (3) take off liquid, dry water-soluble cotton fiber.
Embodiment 3, water-soluble cotton thread preparation method, comprise the steps: cotton thread 55 grams of (1) taking cotton fiber content 95%, add in the mixed liquor of 80 milliliters of cyclohexanone and sodium hydrate aqueous solution, in blanket of nitrogen, reacted 20 minutes in 35 ℃, be warming up to 65 ℃ of reactions 35 minutes again, the sodium hydroxide solution weight percent concentration is 90%, and cyclohexanone and sodium hydroxide solution volume ratio are 4.5: 1; (2) discharge nitrogen, add 110 milliliters of trichloroacetic acid cyclohexanone solution, 65 ℃ of reactions 35 minutes, cyclohexanone and trichloroacetic acid volume ratio were 4.5: 2; (3) take off liquid, dry water-soluble cotton fiber.
Embodiment 4, the water-soluble cotton thread preparation method of double variable color, get water-soluble cotton thread 45 grams of gained in the foregoing description, spread bondage out in electrolytic cell on the minus plate, the mixture that adds 500 milliliters of cyclohexanone and ferric sulfate aqueous solution is that electrolyte carries out electrolysis, deposition one deck ferrous sulfate on water-soluble cotton thread takes off liquid, the dry water-soluble cotton thread that gets inferior redness.In cyclohexanone and the ferric sulfate aqueous solution mixed liquor, the ferric sulfate aqueous solution weight percent concentration is 20%, and cyclohexanone and ferric sulfate aqueous solution volume ratio are 15: 1, and electrolysis is at room temperature carried out, and decomposition voltage is 12 volts, electrolysis time 35 minutes.Take off liquid, drying, get the water-soluble cotton thread of inferior redness.
Get the red water-soluble cotton thread in above-mentioned Asia and spread bondage out in electrolytic cell on the minus plate, the mixture that adds 500 milliliters of cyclohexanone and copper sulfate solution is that electrolyte carries out electrolysis, deposition one deck cuprous sulfate on the red water-soluble cotton thread in Asia takes off liquid, dry green water-soluble cotton thread.In cyclohexanone and the copper sulfate solution, the copper sulfate solution weight percent concentration is 25%, and cyclohexanone and copper sulfate solution volume ratio are 15: 1, electrolysis is at room temperature carried out, and decomposition voltage is 24 volts, electrolysis time 45 minutes, take off liquid, drying, get green water-soluble cotton thread.Becoming redness by green earlier, be dissolved in water again with this cotton thread after water contacts.
In embodiment 5, the present embodiment, water-soluble cotton thread is 50 grams, in cyclohexanone and the ferric sulfate aqueous solution mixed liquor, the ferric sulfate aqueous solution weight percent concentration is 35%, and cyclohexanone and ferric sulfate aqueous solution volume ratio are 18: 1, and electrolysis is at room temperature carried out, decomposition voltage is 12 volts, electrolysis time 40 minutes.In cyclohexanone and the copper sulfate solution mixed liquor, the copper sulfate solution weight percent concentration is 35%, and cyclohexanone and copper sulfate solution volume ratio are 18: 1, and electrolysis is at room temperature carried out, and decomposition voltage is 24 volts, electrolysis time 50 minutes.Other are with embodiment 4.
In embodiment 6, the present embodiment, water-soluble cotton thread is 55 grams, in cyclohexanone and the ferric sulfate aqueous solution mixed liquor, the ferric sulfate aqueous solution weight percent concentration is 45%, and cyclohexanone and ferric sulfate aqueous solution volume ratio are 20: 1, and electrolysis is at room temperature carried out, decomposition voltage is 12 volts, electrolysis time 45 minutes.In cyclohexanone and the copper sulfate solution mixed liquor, the copper sulfate solution weight percent concentration is 50%, and cyclohexanone and copper sulfate solution volume ratio are 20: 1, and electrolysis is at room temperature carried out, and decomposition voltage is 24 volts, electrolysis time 50 minutes.Add LT in per 1000 milliliters of electrolyte and increase dark dye leveller (Shang Haixi reaches chemical industry Co., Ltd and produces) 10 grams.Other are with embodiment 4.
Claims (10)
1. water-soluble plant cellulose or filamental thread preparation method, it is characterized in that, comprise the steps: that (1) get plant cellulose or the filamental thread 45-55 gram of string content more than 90%, add in the mixed liquor of 80-100 milliliter cyclohexanone and NaOH or potassium hydroxide aqueous solution, in inert atmosphere, reacted 20-30 minute in 35-45 ℃, be warming up to 65-75 ℃ of reaction 35-45 minute again, NaOH or potassium hydroxide solution weight percent concentration are 85-95%, and cyclohexanone and NaOH or potassium hydroxide solution volume ratio are (4.5-5): 1; (2) discharge inert gas, add 110-130 milliliter monoxone cyclohexanone solution, 65-75 ℃ of reaction 35-45 minute, cyclohexanone and monoxone volume ratio were (4.5-5.5): 2; (3) take off liquid, drying.
2. preparation method as claimed in claim 1 is characterized in that, monoxone is selected trichloroacetic acid or inferior monoxone in the step (2), adds dye leveller 10-15 gram in the step (2).
3. preparation method as claimed in claim 1 or 2 is characterized in that, plant cellulose or filamental thread are selected gossypin or filamental thread, and inert gas is selected nitrogen for use.
4. water-soluble plant cellulose of variable color or filamental thread preparation method, it is characterized in that, comprise the steps: that (1) get plant cellulose or the filamental thread 45-55 gram of string content more than 90%, add in the mixed liquor of 80-100 milliliter cyclohexanone and NaOH or potassium hydroxide aqueous solution, in inert atmosphere, reacted 20-30 minute in 35-45 ℃, be warming up to 65-75 ℃ of reaction 35-45 minute again, NaOH or potassium hydroxide solution weight percent concentration are 85-95%, and cyclohexanone and NaOH or potassium hydroxide solution volume ratio are (4.5-5): 1; (2) discharge inert gas, add 110-130 milliliter monoxone cyclohexanone solution, 65-75 ℃ of reaction 35-45 minute, cyclohexanone and monoxone volume ratio were (4.5-5.5): 2; (3) take off liquid, dry water-soluble plant cellulose or the filamental thread of getting; (4) get above-mentioned water-soluble plant cellulose or filamental thread bondage in electrolytic cell on the minus plate, with the aqueous metal salt that can produce stable colored protosalt through electrolysis and the mixed liquor of cyclohexanone is electrolyte, electrolytic deposition protosalt on water-soluble plant cellulose or filamental thread takes off liquid, dry one heavily water-soluble plant cellulose of variable color or filamental thread.
5. preparation method as claimed in claim 4, it is characterized in that, based on one heavily the water-soluble plant cellulose of variable color or filamental thread, can produce the aqueous metal salt of stable colored protosalt and the mixed liquor of cyclohexanone is an electrolyte with other through electrolysis, a kind of protosalt before other protosalt of electrolytic deposition hide on water-soluble plant cellulose or filamental thread takes off liquid, doublely to water-soluble plant cellulose of multiple variable color or filamental thread dry.
6. preparation method as claimed in claim 4, it is characterized in that, fetch water molten gossypin or filamental thread spread bondage out in electrolytic cell on the minus plate, mixture with cyclohexanone and ferric sulfate aqueous solution is that electrolyte carries out electrolysis, deposition one deck ferrous sulfate on water-soluble gossypin or filamental thread takes off liquid, dry water-soluble gossypin of inferior redness or the filamental thread of getting.
7. preparation method as claimed in claim 6, it is characterized in that, get inferior red water-soluble gossypin or filamental thread and spread bondage out in electrolytic cell on the minus plate, mixture with cyclohexanone and copper sulfate solution is that electrolyte carries out electrolysis, deposition one deck cuprous sulfate on red water-soluble gossypin in Asia or filamental thread takes off liquid, dry green water-soluble gossypin or the filamental thread of getting.
8. preparation method as claimed in claim 6, it is characterized in that, in cyclohexanone and the ferric sulfate aqueous solution, the ferric sulfate aqueous solution weight percent concentration is 20-45%, cyclohexanone and ferric sulfate aqueous solution volume ratio are (15-20): 1, electrolysis is at room temperature carried out, and decomposition voltage is 12 volts, electrolysis time 35-45 minute.
9. preparation method as claimed in claim 7, it is characterized in that, in cyclohexanone and the copper sulfate solution, the copper sulfate solution weight percent concentration is 25-50%, cyclohexanone and copper sulfate solution volume ratio are (15-20): 1, electrolysis is at room temperature carried out, and decomposition voltage is 24 volts, electrolysis time 40-50 minute.
10. preparation method as claimed in claim 8 or 9 is characterized in that, adds in per 1000 milliliters of electrolyte to increase dark dye leveller 10-15 gram.
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| CNB2003101102343A CN100408735C (en) | 2003-12-19 | 2003-12-19 | Process for preparing water soluble plant cellulose (thread) and color variable water soluble plant cellulose (thread) |
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| CNB2003101102343A CN100408735C (en) | 2003-12-19 | 2003-12-19 | Process for preparing water soluble plant cellulose (thread) and color variable water soluble plant cellulose (thread) |
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| CN100408735C true CN100408735C (en) | 2008-08-06 |
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| CN103628646A (en) * | 2013-12-05 | 2014-03-12 | 吴江市亨德利纺织厂 | Waterproof gradient color wall cloth |
| CN114465017B (en) * | 2022-01-18 | 2022-08-26 | 中国热带农业科学院农产品加工研究所 | Wave-absorbing material and preparation method and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1064594A (en) * | 1991-03-08 | 1992-09-23 | 不二制油株式会社 | The manufacture method of water-solubility vegetable fibres, Biodegradable film, paste, chewing gum and low-calorie diet |
| CN1286329A (en) * | 1999-08-30 | 2001-03-07 | 北京纺织科学研究所 | Water-soluble staltic cellulose fibre and its preparing process |
| JP2002020646A (en) * | 2000-07-13 | 2002-01-23 | Sumitomo Chem Co Ltd | Reactive dye mixture and its application to textile |
| CN1377895A (en) * | 2002-04-09 | 2002-11-06 | 武汉大学 | Process for preparing hydroxy ethyl cellulose |
| CN1382846A (en) * | 2001-04-27 | 2002-12-04 | 中国科学院化学研究所 | Method for making superfine fibres |
| JP2003221779A (en) * | 2001-11-22 | 2003-08-08 | Kuraray Co Ltd | Method for producing bulky fiber structure |
-
2003
- 2003-12-19 CN CNB2003101102343A patent/CN100408735C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1064594A (en) * | 1991-03-08 | 1992-09-23 | 不二制油株式会社 | The manufacture method of water-solubility vegetable fibres, Biodegradable film, paste, chewing gum and low-calorie diet |
| CN1286329A (en) * | 1999-08-30 | 2001-03-07 | 北京纺织科学研究所 | Water-soluble staltic cellulose fibre and its preparing process |
| JP2002020646A (en) * | 2000-07-13 | 2002-01-23 | Sumitomo Chem Co Ltd | Reactive dye mixture and its application to textile |
| CN1382846A (en) * | 2001-04-27 | 2002-12-04 | 中国科学院化学研究所 | Method for making superfine fibres |
| JP2003221779A (en) * | 2001-11-22 | 2003-08-08 | Kuraray Co Ltd | Method for producing bulky fiber structure |
| CN1377895A (en) * | 2002-04-09 | 2002-11-06 | 武汉大学 | Process for preparing hydroxy ethyl cellulose |
Non-Patent Citations (2)
| Title |
|---|
| 水溶性维尼纶纤维的生产技术探讨. 丁小峰.福建轻纺，第10、11期. 2003 |
| 水溶性维尼纶纤维的生产技术探讨. 丁小峰.福建轻纺，第10、11期. 2003 * |
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