CN107794585A - A kind of preparation method of high white lustrous fibre cellulose fiber - Google Patents
A kind of preparation method of high white lustrous fibre cellulose fiber Download PDFInfo
- Publication number
- CN107794585A CN107794585A CN201610719396.4A CN201610719396A CN107794585A CN 107794585 A CN107794585 A CN 107794585A CN 201610719396 A CN201610719396 A CN 201610719396A CN 107794585 A CN107794585 A CN 107794585A
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- CN
- China
- Prior art keywords
- temperature
- bath
- concentration
- value
- sodium hypochlorite
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Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
- D01F2/08—Composition of the spinning solution or the bath
- D01F2/10—Addition to the spinning solution or spinning bath of substances which exert their effect equally well in either
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B9/00—Cellulose xanthate; Viscose
- C08B9/04—Continuous processes
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D13/00—Complete machines for producing artificial threads
Abstract
The present invention relates to a kind of preparation method of high white lustrous fibre cellulose fiber, it is that spinning solution enters conche after coagulating bath, two baths, cut-out, control each technological parameter of conche, 97 DEG C of cloth hair bath temperature degree, 88 DEG C of pickling temperature, one of 70 DEG C of washing temperature, 80 DEG C of desulfurization bath temperature, the 3g/L of desulfurization concentration of lye 2.With sodium hypochlorite bleaching, sodium hypochlorite concentration 0.6g/L, temperature is 60 DEG C, and with acetic acid or newborn acid for adjusting pH value, pH value 10 11 or so, the control of second step whiteness strategic point finish application bath pH value is 6.5 7.5,65 DEG C of temperature.The present invention mainly using acetic acid or the pH value 10 or so and finish application bath pH value 6.5 7.5 of lactic acid control sodium hypochlorite bleaching bath, obtains high whiteness cellulose fibre.
Description
Technical field
The present invention relates to a kind of preparation method of high white lustrous fibre cellulose fiber.
Background technology
Cellulose fibre has the excellent properties that other synthetic fibers do not have, and the requirement of its quality index and the method for inspection are shown in
GB/T14463-2008《Viscose staple fibre》Standard, quality index are mainly used in weaving spinning, and its whiteness is low and containing micro
Chlorine, Sulfur, influence its whiteness cause downstream production dyeing and finishing after color and luster it is poor, carrying for whiteness is referred in patent publication No. 1632189
Height is by bleaching twice, is added to finish to the secondary bleaching of cellulose fibre using hydrogen peroxide for the second time, but the present invention is not
Secondary bleaching is needed, ideal fibres whiteness, and easily operation and control can be reached by only controlling the pH of oil bath.
The content of the invention
The purpose of the present invention is to prepare a kind of high whiteness cellulose fibre for having light.
Realize the scheme of foregoing invention：The whiteness of the product is more than 86%, and intensity is high, degree of stretching is high, residual sulfur content is low, cleanliness factor
Height, surface-active substance is low, the hydrotrope is low, xanthochromia is small, stain is small, water absorption is big, acid-base value is neutral, crimpness is moderate, is no different
Taste, other indexs meet GB/T 14463-2008《Viscose staple fibre》National standard high-class product.
A kind of production method of high white lustrous fibre cellulose fiber, it comprises the following steps：
A) impregnate：Pulp is put into, temperature：50 DEG C, the time：30-35 minutes, the concentration of alkali：220g/L；
B) squeeze：Raw material is squeezed with squeezer and crushed, 110-160 g/l of constant volume weight；
C) it is experienced：Raw material after crushing is experienced, 49-60 DEG C of temperature, experienced outlet cuprammonium viscosity 45-50mp；
D) yellow：Carbon disulfide is to first fibre addition 32-35%, and the yellow time is 25-35 minutes, 18-35 DEG C of temperature；
E) spinning bath：With acid solution acid bath, sulfuric acid concentration：100-120g/L, sodium sulfate concentration：330-360g/L, sulfuric acid zinc concentration：
10-13g/L, acid bath temperature：45-50℃；Two baths：Temperature >=90 DEG C, sulfuric acid concentration：45-60g/L；
F) drawing-off, boundling：Plasticizing drawing-off use twice drawing-off, first of drawing-off, degree of draft 65-68%, and second bounces back and led
Stretch for 0-0.1%；Total draft：2.0-2.2 again, spinneret draft：1.2-1.4 again；
G) refine：Cloth hair bath temperature degree >=90 DEG C, pickling temperature >=75 DEG C, one of 85 DEG C of washing temperature, desulfurization bath temperature 75-90
DEG C, desulfurization concentration of lye 3-5g/L, two 80 DEG C of washing temperatures, refining time：10-15 minutes；
H) sodium hypochlorite bleaching, sodium hypochlorite concentration 0-1.0g/L are used, temperature is 60-70 DEG C, pH value 10 or so, on second step
Oil bath pH value is controlled in 6.0-7.0；
I) dry, finished product essence shredding, packing.
Embodiment
Preparation contains first fibre 9.0%, containing alkali 5.0%, viscosity 60s, degree of ripeness 12ml（10%NH4Cl）Viscose glue stoste, spinning
Silk workshop section, spinning bath sulfuric acid concentration：120g/L, sodium sulfate concentration：338g/L, sulfuric acid zinc concentration：11g/L, acid bath temperature：50
℃.Two baths：Temperature 70 C, sulfuric acid concentration：60g/L.Using 50um spinning heads, drawing-off, boundling：Plasticizing drawing-off is led using twice
Stretch, second drawing-off 56%.Refining：97 DEG C of cloth hair bath temperature degree, 88 DEG C of pickling temperature, one of 70 DEG C of washing temperature, desulfurization bath temperature
80 DEG C, desulfurization concentration of lye 2-3g/L.With sodium hypochlorite bleaching, sodium hypochlorite concentration 0.6g/L, temperature is 60 DEG C, uses acetic acid
Or newborn acid for adjusting pH value, pH value 10 or so, the control of second step whiteness strategic point finish application bath pH value is 6.5,65 DEG C of temperature；
Drying, finished product essence shredding, packing.
It is 87% by whiteness instrument test whiteness.
Claims (2)
1. a kind of preparation method of high white lustrous fibre cellulose fiber, its whiteness is more than 86%, and its content of cellulose is 90%-95%, water
For 9%-13%, finish 0.25%-0.3%.
2. the production technology for having the high whiteness cellulose fibre of light described in a kind of manufacturing claims book 1, its technological requirement are,
Comprise the following steps：
（a）Dipping：Pulp is put into temperature：50 DEG C, the time：30-35 minutes, the concentration of alkali：220g/L；
（b）Squeezing：Raw material is squeezed with squeezer and crushed, 110-160 g/l of constant volume weight；
（c）It is experienced：Raw material after crushing is experienced, 49-60 DEG C of temperature, experienced outlet cuprammonium viscosity 45-50mp；
（d）Yellow：Carbon disulfide is to first fibre addition 32-35%, and the yellow time is 25-35 minutes, 18-35 DEG C of temperature；
（e）Spinning bath：With acid solution acid bath, sulfuric acid concentration：100-120g/L, sodium sulfate concentration：330-360g/L, zinc sulfate are dense
Degree：10-13g/L, acid bath temperature：45-50℃；Two baths：Temperature >=90 DEG C, sulfuric acid concentration：45-60g/L；
（f）Drawing-off, boundling：Plasticizing drawing-off use twice drawing-off, first of drawing-off, degree of draft 65-68%, and second bounces back and led
Stretch for 0-0.1%；Total draft：2.0-2.2 again, spinneret draft：1.2-1.4 again；
（g）Refining：Cloth hair bath temperature degree >=90 DEG C, pickling temperature >=75 DEG C, one of 85 DEG C of washing temperature, desulfurization bath temperature 75-90
DEG C, desulfurization concentration of lye 3-5g/L, two 80 DEG C of washing temperatures, refining time：10-15 minutes；
（h）With sodium hypochlorite bleaching, sodium hypochlorite concentration 0-1.0g/L, temperature is 60-70 DEG C, pH value 10 or so, on second step
Oil bath pH value is controlled in 6.0-7.0；
（i）Drying, finished product essence shredding, packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610719396.4A CN107794585A (en) | 2016-08-25 | 2016-08-25 | A kind of preparation method of high white lustrous fibre cellulose fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610719396.4A CN107794585A (en) | 2016-08-25 | 2016-08-25 | A kind of preparation method of high white lustrous fibre cellulose fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107794585A true CN107794585A (en) | 2018-03-13 |
Family
ID=61527620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610719396.4A Pending CN107794585A (en) | 2016-08-25 | 2016-08-25 | A kind of preparation method of high white lustrous fibre cellulose fiber |
Country Status (1)
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| CN (1) | CN107794585A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1648293A (en) * | 2004-12-24 | 2005-08-03 | 唐山三友集团化纤有限公司 | High whiteness viscose staple fiber for health material and its producing process |
| CN1904156A (en) * | 2006-07-31 | 2007-01-31 | 唐山三友集团化纤有限公司 | Fire retardant viscose short filament and its production technology |
| US20100019213A1 (en) * | 2006-12-28 | 2010-01-28 | Sufeng Tian | Fire retardant antiflux fiber and its production process |
| CN102965751A (en) * | 2012-12-20 | 2013-03-13 | 唐山三友集团兴达化纤有限公司 | High-wet-modulus and flame-retardant regenerated cellulose fibers and preparation method thereof |
| CN103215680A (en) * | 2013-04-08 | 2013-07-24 | 宜宾海丝特纤维有限责任公司 | Production technology of viscose extinction monofilament |
-
2016
- 2016-08-25 CN CN201610719396.4A patent/CN107794585A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1648293A (en) * | 2004-12-24 | 2005-08-03 | 唐山三友集团化纤有限公司 | High whiteness viscose staple fiber for health material and its producing process |
| CN1904156A (en) * | 2006-07-31 | 2007-01-31 | 唐山三友集团化纤有限公司 | Fire retardant viscose short filament and its production technology |
| US20100019213A1 (en) * | 2006-12-28 | 2010-01-28 | Sufeng Tian | Fire retardant antiflux fiber and its production process |
| CN102965751A (en) * | 2012-12-20 | 2013-03-13 | 唐山三友集团兴达化纤有限公司 | High-wet-modulus and flame-retardant regenerated cellulose fibers and preparation method thereof |
| CN103215680A (en) * | 2013-04-08 | 2013-07-24 | 宜宾海丝特纤维有限责任公司 | Production technology of viscose extinction monofilament |
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Application publication date: 20180313 |