CN1300887A - Regenerated cellulose fibre and its preparing process - Google Patents
Regenerated cellulose fibre and its preparing process Download PDFInfo
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- CN1300887A CN1300887A CN 99126880 CN99126880A CN1300887A CN 1300887 A CN1300887 A CN 1300887A CN 99126880 CN99126880 CN 99126880 CN 99126880 A CN99126880 A CN 99126880A CN 1300887 A CN1300887 A CN 1300887A
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Abstract
A regenerated cellulose fibre is prepared from alpha-cellulose and polyacrylamide multipolymer as modifier. Said modifier has better compatibility with macromolecular of cellulose and better affinity with the moleculae of anionic dye, so it is easily dyed by anionic dye and be blended with anion modified polyester fibres and acrylic fibres with dyed same colour.
Description
Modification regeneration cellulose fibre that in the spinning solution method of substance of the present invention relates to is made and preparation method thereof.
Regenerated celulose fibre because its lower percentage elongation, the gloss as the silk, than easy dyeing, consumption is very big on textiles floss silk.In order to improve aesthetic feeling and the eye-catching sense that textiles is embroidered, to making the raw material of floss silk--regenerated celulose fibre has proposed requirement bright-colored, bright and that chromatogram is abundant.Just in time can satisfy this requirement and dye with cation dyes.But in the prior art, cation dyes only are used for the dyeing of acrylic fiber, because that the big molecule of regenerated cellulose and cation dyes molecule combine fastness is poor, so can not realize cationic dye capable of dyeing.
In known technology, Japan Patent JP89-20313 provides a kind of dyeability improved regenerated celulose fibre, in the manufacture process of this fiber, in viscose, add a kind of cationic oligomer of ad hoc structure, strengthened the affinity of fiber to anionic dye, color and luster is dense deeply after making stock-dye, fastness improves, but it is complicated that the shortcoming of this method is an additive preparation, and be confined to direct dyes, ACID DYES, anionic dyes such as REACTIVE DYES, owing to can not realize cationic dye capable of dyeing, so bright-colored degree, all be very limited on brightness and the chromatogram.Japan Patent JP08-134714 also provides a kind of dyeability improved regenerated celulose fibre, it is in manufacture process, in viscose, add polyethylene glycol and sodium carbonate, make behind the spinning technique fiber surface smooth and form one to several minute recesses, improved the gloss of fiber and to the adsorbance of dyestuff, improved the dyeability of fiber with this, these method process conditions require tighter, be difficult to the control crudy, equally also do not solve the problem of regenerated celulose fibre cationic dye capable of dyeing.
The objective of the invention is to provide a kind of original physical and mechanical properties of regenerated celulose fibre and dyeability of both having kept, can reach the regenerated celulose fibre and preparation method thereof of the modification of cation dyes engrain again.This product with cationic dyeing after color and luster dense deeply, bright-coloured, bright, light fastness is good.
The object of the present invention is achieved like this: regenerated celulose fibre, it is characterized in that described fiber mainly is made up of alpha-cellulose and modifier, described modifier content is 0.1～10% of an alpha-cellulose content, and described modifier adopts the polyacrylamide based copolymer, and its molecular formula is:
In the formula: R
1, R
2, R
3, R
4Be hydrogen atom or methyl, X is-CH
2SO
3-or-COO or-CN and composition thereof, m: n=10: 90～90: 10, molecular weight is more than 700,000.
The regenerated celulose fibre of above-mentioned modification prepares by following method:
One, the preparation of sodium cellulose xanthate
The cotton pulp dregs of rice or wood pulps adding NaOH are made alkali cellulose, and experienced back adds CS
2Make the sodium cellulose xanthate of solid shape.
Two, the preparation of spinning viscose
The solid cellulose sodium sulfonate is added water and NaOH dissolving form sodium cellulose xanthate solution, maturation, deaeration after filtration, refilter, make the spinning viscose, enter spinning process.
Three, spinning and post processing
It is characterized in that adding modifier in described spinning viscose preparation section, described modifier content is 0.1～10% (weight) of alpha-cellulose content, and described modifier adopts the polyacrylamide based copolymer, and its molecular formula is:
In the formula: R
1, R
2, R
3, R
4Be hydrogen atom or methyl, X is-CH
2SO
3-or-COO-or-CN and composition thereof, m :=10: 90～90: 10, molecular weight is more than 700,000.
The present invention both had been applicable to the semi continuous spinning, also can be used for the continuity method spinning.
The fiber dye-uptake increases with the addition of modifier, when the not enough alpha-cellulose content of addition 0.1% the time, the cationic dyeing performance improvement is not obvious, surpass alpha-cellulose content 10% after, the spinnability variation of fiber, the physical mechanical index descends greatly, preferably is selected in 0.5～5% of alpha-cellulose amount.The molecular weight of modifier is preferably in more than 700,000, and molecular weight is low excessively, and modifier runs off in washing process easily.
Because the present invention adds a kind of specific macromolecular material--polyacrylamide based copolymer in the preparation process of regenerated celulose fibre, amide group that it is introduced and cellulose macromolecule have good compatibility, can form bonding, the carboxyl that it is introduced, cyano group or sulfonic acid group all have good compatibility with the cation dyes molecule, therefore have the following advantages:
1, solved the problem of regenerated celulose fibre effectively, made with this method with the cation dyes engrain
Modification regeneration cellulose fiber Wesy cationic dyeing after, color and luster is dense deeply, bright-coloured, bright,
Light fastness is good, has enriched the chromatogram of regenerated celulose fibre.
2, realized regenerated celulose fibre and cation-modified polyester fiber and acrylic fiber blended union after,
Homochromy one-bath process has been simplified this type of coloration of textile materials technology greatly.
3, described modification regeneration cellulose fibre makes regenerated celulose fibre and sheep to not staining of ACID DYES
Hair, silk, polyamide fibre blended union poststaining, can reach at the regenerated celulose fibre place stay white heterochromatic
Effect.
Regenerated celulose fibre of the present invention comprises long filament, short fiber, and bondedfibre fabric, and light can be arranged, also can delustring, half delustring.
The invention will be further described below in conjunction with embodiment and accompanying drawing.
Fig. 1 is the control curve of modification regeneration cellulose fibre of the present invention with the dye-uptake of the fiber that does not add modifier and make according to a conventional method.
Embodiment:
The cotton pulp dregs of rice are added NaOH make alkali cellulose, experienced back adds CS
2Make the sodium cellulose xanthate of solid shape; The solid cellulose sodium sulfonate is added water and NaOH dissolving formation sodium cellulose xanthate solution (being viscose), standby after two roads filter.
With acrylamide--methacrylic acid copolymer is made into the 10g/L aqueous solution, be that 0.1%, 1.5%, 5%, 10% ratio is put in the above-mentioned viscose respectively before spinning in alpha-cellulose content then, vacuumizing and defoaming is 2 hours while stirring, again after the 3rd road filters, make alpha-cellulose content and be 8.2%, sodium hydrate content is 5.95%, modifier content is respectively 0.0082%, 0.12%, 0.41%, 0.82%, degree of ripeness is 8.4ml (10%NH
4Cl), the modification viscose that mixes.
With the modification viscose spinning on R531 type spinning machine that makes, spinning head is φ 0.09 millimeter * 50 holes, and acid bath consists of sulfuric acid 130g/L, zinc sulfate 12g/L, sodium sulphate 268g/L, and spinning temperature is 49 ℃.Spinning cake is after conventional refining treatment, and drying is 68 hours under 76-82 ℃.
Table 1 is physical and mechanical properties and the dye-uptake isoparametric table of comparisons of modification regeneration cellulose fibre of the present invention (representing with embodiment in the table) with the fiber (representing with reference examples in the table) that does not add modifier and make according to a conventional method.
As can be seen from the table, modified fibre changes under the little situation in physical and mechanical properties indexs such as dry strength, dried degree of stretching, and dye-uptake is significantly improved, and along with the increasing of modifier content, dye-uptake also increases.But add to a certain degree when modifier, dye-uptake improves that speed is ashamed to hasten towards saturation.
Table 1
| ?m∶n | Modifier addition (% alpha-cellulose) | Dry strength (g/d) | Dried degree of stretching (%) | Dye-uptake (%) | Light fastness (level) | ||
| Embodiment | 1 | ?90∶10 | ????0.5 | ????1.60 | ????21.3 | ????71.3 | ????2 |
| ??2 | ????1.5 | ????1.58 | ????22.7 | ????81.3 | ????2～3 | ||
| ??3 | ????5.0 | ????1.61 | ????22.4 | ????84.2 | ????3～4 | ||
| ??4 | ????10 | ????1.63 | ????23.3 | ????86.6 | ????＞4 | ||
| ??5 | ?70∶30 | ????0.5 | ????1.54 | ????23.9 | ????73.9 | ????2～3 | |
| ??6 | ????1.5 | ????1.63 | ????21.4 | ????84.0 | ????3～4 | ||
| ??7 | ????5.0 | ????1.64 | ????23.8 | ????89.0 | ????＞4 | ||
| ??8 | ????10 | ????1.60 | ????24.1 | ????91.0 | ????＞4 | ||
| ??9 | ?10∶90 | ????0.5 | ????1.62 | ????22.7 | ????84.0 | ????3 | |
| ??10 | ????1.5 | ????1.61 | ????23.5 | ????88.3 | ????3～4 | ||
| ??11 | ????5.0 | ????1.52 | ????23.8 | ????91.2 | ????＞4 | ||
| Reference examples | ????- | ????0 | ????1.62 | ????21.4 | ????67.0 | ????1～2 | |
Claims (3)
1, a kind of regenerated celulose fibre is characterized in that described fiber mainly is made up of alpha-cellulose and modifier, and described modifier content is 0.1～10% of an alpha-cellulose content, and described modifier adopts the polyacrylamide based copolymer, and its molecular formula is:
In the formula: R
1, R
2, R
3, R
4Be hydrogen atom or methyl, X is-CH
2SO
3-or-COO-or-CN and composition thereof, m: n=10: 90～90: 10, molecular weight is more than 700,000.
2, the preparation method of regenerated celulose fibre as claimed in claim 1, carry out as follows:
One, the preparation of sodium cellulose xanthate
The cotton pulp dregs of rice or wood pulps adding NaOH are made alkali cellulose, and experienced back adds CS
2Make the sodium cellulose xanthate of solid shape.
Two, the preparation of spinning viscose
The solid cellulose sodium sulfonate is added water and NaOH dissolving form sodium cellulose xanthate solution, maturation, deaeration after filtration, refilter, make the spinning viscose, enter spinning process.
Three, spinning and post processing
It is characterized in that adding modifier in described spinning viscose preparation section, described modifier content is 0.1～10% (weight) of alpha-cellulose content, and described modifier adopts the polyacrylamide based copolymer, and its molecular formula is:
In the formula: R
1, R
2, R
3, R
4Be hydrogen atom or methyl, X is-CH
2SO
3-or-COO-or-CN and composition thereof, m: n=10: 90～90: 10, molecular weight is more than 700,000.
3, the preparation method of regenerated celulose fibre as claimed in claim 2 is characterized in that described modifier content is 0.5～5% (weight) of alpha-cellulose content.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99126880 CN1300887A (en) | 1999-12-23 | 1999-12-23 | Regenerated cellulose fibre and its preparing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99126880 CN1300887A (en) | 1999-12-23 | 1999-12-23 | Regenerated cellulose fibre and its preparing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1300887A true CN1300887A (en) | 2001-06-27 |
Family
ID=5284600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99126880 Pending CN1300887A (en) | 1999-12-23 | 1999-12-23 | Regenerated cellulose fibre and its preparing process |
Country Status (1)
| Country | Link |
|---|---|
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1306081C (en) * | 2005-07-26 | 2007-03-21 | 高明宝 | Antibacterial and acarid-removing fiber product and preparing method thereof |
| CN101796229B (en) * | 2007-09-07 | 2014-06-11 | 可隆工业株式会社 | Cellulose-based fiber, and tire cord comprising the same |
| CN105350329A (en) * | 2015-11-24 | 2016-02-24 | 武汉纺织大学 | Polymer cationic modifier for ramie fabric, and preparation method and application method thereof |
| CN108866666A (en) * | 2017-05-11 | 2018-11-23 | 成都弥新科技有限公司 | A kind of viscose material and preparation method thereof |
-
1999
- 1999-12-23 CN CN 99126880 patent/CN1300887A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1306081C (en) * | 2005-07-26 | 2007-03-21 | 高明宝 | Antibacterial and acarid-removing fiber product and preparing method thereof |
| CN101796229B (en) * | 2007-09-07 | 2014-06-11 | 可隆工业株式会社 | Cellulose-based fiber, and tire cord comprising the same |
| CN105350329A (en) * | 2015-11-24 | 2016-02-24 | 武汉纺织大学 | Polymer cationic modifier for ramie fabric, and preparation method and application method thereof |
| CN108866666A (en) * | 2017-05-11 | 2018-11-23 | 成都弥新科技有限公司 | A kind of viscose material and preparation method thereof |
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