CN101104961A - Method for producing spinning dyeing viscose fiber and spinning dyeing viscose fiber thereof - Google Patents
Method for producing spinning dyeing viscose fiber and spinning dyeing viscose fiber thereof Download PDFInfo
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- CN101104961A CN101104961A CNA2007100490706A CN200710049070A CN101104961A CN 101104961 A CN101104961 A CN 101104961A CN A2007100490706 A CNA2007100490706 A CN A2007100490706A CN 200710049070 A CN200710049070 A CN 200710049070A CN 101104961 A CN101104961 A CN 101104961A
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Abstract
The invention discloses a method of spinning dyed viscose fibers and dyed viscose fibers produced by the method, and overcomes the problems in the prior art of colored viscose fibers. The method comprises adding a reducer and an oxidizer in the dye, mixing the resulting mixture with a viscose glue to obtain colored viscose glue, and spinning. During the processes from formation to refining of reduced spinning threads or after the spinning process is completely, reduced threads are oxidized and stained under an acidic or alkaline condition to form spinning dyed viscose fibers. Based on the research of dyeing mechanism, the invention breaks through the conventional process of pre-spinning dyeing and late finishing, and directly produces colored viscose fibers. The invention realizes the monofilament dyeing and improves the dyeing uniformity, color fastness and color brightness, enriches the color tone, and meets the standard of stitch yarn. Additionally, the invention can greatly reduce the production cost and avoid the contamination of the subsequent processing. The product has beautiful color, uniform dyeing, comfortable feel and wide application range.
Description
Technical field
The present invention relates to the production method of artificial fibre and artificial fibre, especially relate to a kind of artificial fibre that in the experienced process strand is dyeed that spins, and the production method of dyed through spinning and scouring procedure artificial fibre.
Background technology
Artificial fibre claims artificial silk, viscose, regenerated celulose fibre again, annotates look or later stage dyeing and finishing processing by viscose glue before spinning, and can make versicolor artificial fiber product, is widely used in that look is knitted, family is spun, metallized thread, floss silk, yarn field.
Dye after the strand moulding and be called for short that to spin poststaining be to eliminate technology, have drawbacks such as complex process, cost height, blowdown flow rate are big.So proposed to spin preceding coloring process in recent years.Being about to pigment injection viscose glue becomes coloured viscose glue, carries out spinning again.
Before spinning, tradition annotates the painted silk that color method is produced, because used granules of pigments is bigger, the granularity heterogeneity, bad dispersibility in viscose glue, cause spinnability poor, the production cost height, product coloured light dimness, and can't be used for floss silk production (main) because quality such as glossiness, the feel etc. of the floss silk of being made do not reach instructions for use; The residue dye liquor that later stage dyeing and finishing processing need be drained a large amount of is unfavorable for environmental protection, also will increase water, electricity, vapour energy resource consumption; Later stage dyeing and finishing processing also is subjected to factor affecting such as artificial fiber product quality, dyeing and finishing technology fluctuation easily, causes problems such as dyeing is inhomogeneous, COLOR FASTNESS difference.
And spin that the poststaining strand makes that floss silk need pass through ternary, twists thread, skeining, dye, burst at the seams, become operations such as tube, ternary, complex process, and blowdown flow rate is big.
Someone has mentioned coloured viscose and the production method that adopts indigoid, anthraquinone class reducing dye in patent.This method be with indigoid, anthraquinone class reducing dye is reduced into leuco compound salt pair viscose glue under alkali condition painted, makes coloured viscose by spinning, concise and oven dry.Because this method does not adopt oxidant and control measure such as relevant technology, equipment, also just can not effectively control the oxidation-reduction process of indigoid, anthraquinone class reducing dye, the coloured viscose color instability, the spinnability that obtain are poor, can't realize industrialized production.
Summary of the invention
The present invention is intended to the above-mentioned defective at existing coloured viscose production method and the existence of coloured viscose, a kind of spinning dyeing viscose production method and spinning dyeing viscose thereof are provided, and this method can realize industrialized production and deep processed product production thereof.By the research to dyeing mechanism, painted before the common viscose fiber that breaks traditions is spun, the traditional handicraft of later stage dyeing and finishing processing is directly produced coloured viscose.The present invention can realize monofilament dyeing, improves the dyeing uniformity of coloured strand, COLOR FASTNESS, and colour brightness, the rich colors kind reaches the use standard of floss silk; Significantly reduce production costs simultaneously, easy to use, following process is pollution-free, the protection environment; Dyeing quality satisfies market demands, beautiful in colour, even dyeing, comfortable feel, is widely used.
For achieving the above object, the technical solution used in the present invention is as follows:
The spinning dyeing viscose production method is characterized in that: add reductant and oxidant in dyestuff, with above-mentioned dyestuff and the mixed viscose glue that must dye of viscose glue, the seeing-off deck spinning obtains the reduction strand; The reduction strand concise spins the experienced process or when spinning experienced process and finishing, oxidation under acid or alkali environment, colour developing form spinning dyeing viscose from being formed into.
Provide the reduction strand below respectively in the technical process of acid environment and alkali environmental oxidation:
The acid environment oxidation:
A, mill base preparation: according to the requirement of viscose color, take by weighing a certain amount of one or more dyestuffs according to concentration ratio, its mixing is distributed in the demineralized water, add alkaline solution,, in solution, add reductant and oxidant again according to the reaction mol ratio, use the demineralized water constant volume at last, solution is filled in the storage tank again, crosses and filter to remove granule foreign, it is standby to make mill base;
B, viscose glue color matching: standby color paste is packed in the storage device, and secluding air protection, according to liquor capacity is that the ratio of viscose glue volume 0.5%～10% adds the dye liquor of certain volume in the viscose glue pipe, after the process mixing arrangement fully mixes, enter again in the viscose glue surge tank and mix, the viscose glue that will dye is carried with gumming pump, delivers to the board spinning by the secondary static mixer;
C, dyeing: after dye molecule in the dye liquor and viscose glue molecule fully mix, enter in the acid bath through spinneret orifice, under oxidant and acid effect, the dye molecule in the dye liquor is oxidized separates out, and is evenly distributed on fibrous inside, forms hydrogen bonded with fiber molecule;
D, spinning: by spin continuously, semicontinuous spin or the special-shaped flat production process of spinning is carried out spinning production, form dyed through spinning and scouring procedure spinning cake or skein silk;
E, post processing: spinning cake or skein silk send concise operation, finally are fixed into the color of expection through peroxidization, through compress and wash, winder after the oven dry, damping, make the spinning dyeing viscose product.
The alkali environmental oxidation
A, mill base preparation: according to the requirement of viscose color, take by weighing a certain amount of one or more dyestuffs according to concentration ratio, its mixing is distributed in the demineralized water, add alkaline solution,, in solution, add reductant and oxidant again according to the reaction mol ratio, use the demineralized water constant volume at last, solution is filled in the storage tank again, crosses and filter to remove granule foreign, it is standby to make mill base;
B, viscose glue color matching: standby color paste is packed in the storage device, and secluding air protection, the dye liquor that adds certain volume according to the viscose glue flow in proportion is in the viscose glue pipe, after the process mixing arrangement fully mixes, enter again in the viscose glue surge tank and mix, the viscose glue that will dye is carried with gumming pump, delivers to the board spinning by the secondary static mixer;
C, spinning: after dye molecule in the dye liquor and viscose glue molecule fully mix, enter in the acid bath through spinneret orifice, by spin continuously, semicontinuous spin or the special-shaped flat production process of spinning is carried out spinning production, form spinning cake or skein silk;
D, dyeing: behind spinning cake or the skein silk disacidify, it is inserted alkaline environment, such as alkali cleaning, under the effect of oxidant and alkali, the dye molecule in the dye liquor is oxidized separates out, and is evenly distributed on fibrous inside, forms hydrogen bonded with fiber molecule, begins colour developing this moment.
E, post processing: spinning cake or skein silk send concise operation, fully finally are fixed into the color of expection through peroxidization, compress and wash, winder after the oven dry, damping, make the spinning dyeing viscose product.
Under the alkaline environment oxidation technology, refining process is accommodation slightly.
The slurry kind of viscose glue stoste of the present invention comprises wood pulp, cotton pulp, bamboo pulp and a kind of in the combination arbitrarily mutually.The present invention is applicable to the dyeing of any viscose product, comprises viscose staple fibre, long fiber.
The spinning dyeing viscose that said method is produced, look jail (level): 3.5-5.0; Dyeing (level): 3.5-5.0; Residual sulphur (mg/100g) :≤10; Oil content (%): 0.1-0.3; PH:6-9; Fiber number (dtex): 155～166; Dry strength (CN): 280～330; Dried stretching (%): 16.0～19.0; Wet stretch (%): 20～25; Wet powerful (CN): 140～180; The twist (twist with the fingers/100m): 88～90; Section: uniform in shaping, no thickness silk, sawtooth shrinks obviously.
Adopt floss silk production method of the present invention:
After the damping operation of above-mentioned two kinds of mode of oxidizing, the spinning dyeing viscose spinning cake passes through into ternary, twisting, skeining or becomes tube, promptly makes coloured floss silk.Omit painted silk skeining, dyeed, burst at the seams, become operation such as tube.
Adopt above-mentioned production floss silk, the floss silk product index that obtains: floss silk is done fracture strength 1.5～3.0CN/dtex; Do the fracture strength coefficient of variation 0～8%; Driedly stretch 15～30%; The twist coefficient of variation 0～10%; End breakage rate 0～1 ‰; Regain 8～20%.
The floss silk product feature: full, the rich color of color and luster, comfortable feel, COLOR FASTNESS height, following process is pollution-free, and is easy to use.
Beneficial effect of the present invention shows:
The present invention is owing to add oxidant in dyestuff, can realize that the later stage promptly spins the oxidation reaction of experienced process, make oxidized the separating out of dye molecule in the dye liquor in the dyeing viscose glue, be evenly distributed on fibrous inside, form hydrogen bonded with fiber molecule, guaranteed the production requirement of spinning pre reduction, spinning experienced oxidative color-developing thus.
And, experienced process color and final fixation have been guaranteed to spin by making oxidation-reduction process be protected to the control of the control of the control of the addition of reductant and oxidant, mill base solution and viscose glue volume ratio, mill base concentration, mill base and viscose glue preparation and the control that mixes etc.
The present invention can realize industrialized production and deep processed product production thereof, and the traditional handicraft of painted later stage dyeing and finishing processing was directly produced coloured viscose before the common viscose fiber that breaks traditions was spun.And possess following advantage:
1, realize monofilament dyeing, even dyeing improves the COLOR FASTNESS of coloured strand, colour brightness, and the rich colors kind reaches the use standard of floss silk;
2, significantly reduce production costs, easy to use, following process is pollution-free, the protection environment;
3, dyeing quality satisfies market demands, beautiful in colour, even dyeing, comfortable feel, is widely used.
4, can realize industrialized production, good spinnability, production cost is low.
It is single to adopt the present invention to solve look silk small scale, kind that present China viscose glue industry mainly exists, the problem that prevention and cure of pollution and environmental protection etc. become increasingly conspicuous, and have higher added value and very high market economy meaning, market prospects are comparatively wide.Except a small amount of input of early stage Study on Technology and permanent plant, the also relative traditional dyeing technology with the input of post processing chemical industry material of dyestuff in process of production significantly reduces, and has reduced production process, has reduced energy consumption, has saved production cost.Realize the dyeing waste water zero-emission, exceed the direct economy value of using far away in the economic worth of expenses of environmental protection minimizing and the considerable influence that protection brings to social environment.
Description of drawings
Fig. 1 is a process chart of the present invention
The specific embodiment
The spinning dyeing viscose production method adds reductant and oxidant in dyestuff, with above-mentioned dyestuff and the mixed viscose glue that must dye of viscose glue, the seeing-off deck spinning obtains the reduction strand; The reduction strand concise spins the experienced process or when spinning experienced process and finishing, oxidation under acid or alkali environment, colour developing form spinning dyeing viscose from being formed into.
Strand oxidation under acid or alkali environment is to carry out process choice according to the difference of dyestuff, the oxidation under acid environment of some dyestuff, the oxidation under the alkali environment of some dyestuff.Because after viscose glue is sprayed onto acid bath groove from shower nozzle, acid solution itself in it is exactly an acid environment, add sulfuric acid, dyeing viscose glue in the acid environment oxidation just begins oxidation reaction in acid bath groove, dye molecule in the dye liquor is oxidized separates out, be evenly distributed on fibrous inside, form hydrogen bonded, begin colour developing with fiber molecule.Process color spins experienced process through whole, is the expection color up to fixation.
Why the present invention is called dyed through spinning and scouring procedure, and its reason is that the strand color is to manifest in spinning experienced process, and final quality is after spinning white silk.When dye liquor is added viscose glue, and any time in oxidation reaction process, its color all is different from the expection color.This feature is obviously distinguished and is spun the preceding look technology of annotating, and in the notes look technology, adds the pigment of what color in advance before spinning, and the later stage just obtains the strand of what color, therefore is called painted.Painted silk is bigger owing to used granules of pigments, the granularity heterogeneity, and bad dispersibility in viscose glue causes spinnability poor, the production cost height, product coloured light dimness, and can't be used for floss silk production; The residue dye liquor that later stage dyeing and finishing processing need be drained a large amount of is unfavorable for environmental protection, also will increase water, electricity, vapour energy resource consumption; Later stage dyeing and finishing processing also is subjected to factor affecting such as artificial fiber product quality, dyeing and finishing technology fluctuation easily, causes problems such as dyeing is inhomogeneous, COLOR FASTNESS difference.
And the dyed through spinning and scouring procedure technology that the present invention proposes and the dyed through spinning and scouring procedure silk of production, spin pre reduction, spin experienced process oxidative color-developing, dye molecule in the oxidation reaction in the dye liquor is oxidized separates out, be evenly distributed on fibrous inside, form hydrogen bonded with fiber molecule, improved spinnability, coloured light degree thus, and removed the later stage dyeing and finishing technology, reduce discharging of waste liquid and energy resource consumption, and can be directly used in floss silk production.
Provide the operation process of acid environment oxidation and alkali environmental oxidation below respectively, and other specific embodiments:
Embodiment 1: the acid environment oxidation
A, mill base preparation: according to the requirement of viscose color, take by weighing a certain amount of one or more dyestuffs according to concentration ratio, its mixing is distributed in the demineralized water, add alkaline solution,, in solution, add reductant and oxidant again according to the reaction mol ratio, use the demineralized water constant volume at last, solution is filled in the storage tank again, crosses and filter to remove granule foreign, it is standby to make mill base;
Wherein, the addition of reductant and oxidant is respectively 1～5 times and 0.5～2 times that reacts molal quantity.
Dyestuff comprises: reducing dye, SULPHUR DYES, water-insoluble organic dyestuff
Alkaline solution can be used the NaOH aqueous solution.
Reaction mol ratio: determine according to the different dyes reaction equation.
Reductant comprises: sodium hydrosulfite, thiourea dioxide.
Oxidant comprises: H
2O
2, NaNO
2, sodium dichromate, sodium chlorite.
Liquor capacity behind the constant volume is 0.5%～10% of a viscose glue volume.
Mill base concentration: 0.005%～10% (referring to dyestuff content)
Contain alkali: 2～6%
The device that comprises in the mill base preparation of the present invention has dye liquor blend tank, dye liquor storage tank, grinding mill, dye liquor filter, dye liquor filter pump, circulating pump, screw pump, frequency converter.
B, viscose glue color matching: standby color paste is packed in the storage device, and secluding air protection, the dye liquor that adds certain volume according to the viscose glue flow in proportion is in the viscose glue pipe, after the process mixing arrangement fully mixes, enter again in the viscose glue surge tank and mix, the viscose glue that will dye is carried with gumming pump, delivers to the board spinning by the secondary static mixer;
The slurry kind of viscose glue stoste comprises wood pulp, cotton pulp, bamboo pulp and a kind of in the combination arbitrarily mutually.The present invention is applicable to the dyeing of any viscose product, comprises viscose staple fibre, long fiber.
The viscose glue parameter:
First fibre: 7.9～8.3%
Degree of ripeness: 8.0～12.0ml
Contain alkali: 5.9～6.1%
Surface tension: 42～56 (dymes/cm)
Viscosity: 25～45 seconds
The ratio of viscose glue and dye liquor: the liquor capacity behind the dye liquor constant volume is 0.5%～10% of a viscose glue volume.
The device that comprises in the viscose glue color matching of the present invention has viscose glue delivery pump, viscose glue surge tank, static mixer, screw pump, circulating pump, measuring pump, electromagnetic flowmeter, differential pressure transmitter, electrical equipment automatic control system.
C, dyeing: after dye molecule in the dye liquor and viscose glue molecule fully mix, enter in the acid bath through spinneret orifice, under oxidant and acid effect, the dye molecule in the dye liquor is oxidized separates out, and is evenly distributed on fibrous inside, forms hydrogen bonded with fiber molecule;
D, spinning: by spin continuously, semicontinuous spin or the special-shaped flat production process of spinning is carried out spinning production, form dyed through spinning and scouring procedure spinning cake or skein silk;
The spinning cake parameter:
Acid content :≤5%
Residue esterification degree :≤2.0%
E, post processing: spinning cake or skein silk send concise operation, finally are fixed into the color of expection through peroxidization, through compress and wash, winder after the oven dry, damping, make the spinning dyeing viscose product;
Embodiment 2: the alkali environmental oxidation
A, mill base preparation: according to the requirement of viscose color, take by weighing a certain amount of one or more dyestuffs according to concentration ratio, its mixing is distributed in the demineralized water, add alkaline solution,, in solution, add reductant and oxidant again according to the reaction mol ratio, use the demineralized water constant volume at last, solution is filled in the storage tank again, crosses and filter to remove granule foreign, it is standby to make mill base;
Wherein, the addition of reductant and oxidant is respectively 1～5 times and 0.5～2 times that reacts molal quantity.
Dyestuff comprises: reducing dye, SULPHUR DYES, water-insoluble organic dyestuff.
Alkaline solution can be used the NaOH aqueous solution.
Reaction mol ratio: determine according to the different dyes reaction equation.
Reductant comprises: sodium hydrosulfite, thiourea dioxide.
Oxidant comprises: H
2O
2, NaNO
2, sodium dichromate, sodium chlorite.
Liquor capacity behind the constant volume is 0.5%～10% of a viscose glue volume.
Mill base concentration: 0.005%～10% (referring to dyestuff content)
Contain alkali: 2～6%
The device that comprises in the mill base preparation of the present invention has dye liquor blend tank, dye liquor storage tank, grinding mill, dye liquor filter, dye liquor filter pump, circulating pump, frequency converter.
B, viscose glue color matching: standby color paste is packed in the storage device, and secluding air protection, the dye liquor that adds certain volume according to the viscose glue flow in proportion is in the viscose glue pipe, after the process mixing arrangement fully mixes, enter again in the viscose glue surge tank and mix, the viscose glue that will dye is carried with gumming pump, delivers to the board spinning by the secondary static mixer;
The slurry kind of viscose glue stoste comprises wood pulp, cotton pulp, bamboo pulp and a kind of in the combination arbitrarily mutually.The present invention is applicable to the dyeing of any viscose product, comprises viscose staple fibre, long fiber.
The viscose glue parameter:
First fibre: 7.9～8.3%
Degree of ripeness: 8.0～12.0ml
Contain alkali: 5.9～6.1%
Surface tension: 42～56 (dymes/cm)
Viscosity: 25～45 seconds
The ratio of viscose glue and dye liquor: the liquor capacity behind the dye liquor constant volume is 0.5%～10% of a viscose glue volume.
The device that comprises in the viscose glue color matching of the present invention has viscose glue delivery pump, viscose glue surge tank, static mixer, measuring pump, electromagnetic flowmeter, differential pressure transmitter, electrical equipment automatic control system.
C, spinning: after dye molecule in the dye liquor and viscose glue molecule fully mix, enter in the acid bath through spinneret orifice, by spin continuously, semicontinuous spin or the special-shaped flat production process of spinning is carried out spinning production, form spinning cake or skein silk;
The spinning cake parameter:
Acid content :≤5%
Residue esterification degree :≤2.0%
D, dyeing: behind spinning cake or the skein silk disacidify, it is inserted alkaline environment, such as alkali cleaning, under the effect of oxidant and alkali, the dye molecule in the dye liquor is oxidized separates out, and is evenly distributed on fibrous inside, forms hydrogen bonded with fiber molecule, begins colour developing this moment.
E, post processing: spinning cake or skein silk send concise operation, fully finally are fixed into the color of expection through peroxidization, compress and wash, winder after the oven dry, damping.
Under the alkaline environment oxidation technology, refining process is accommodation slightly.
Embodiment 3: the floss silk production method
After the damping operation of embodiment 1 and embodiment 2, the spinning dyeing viscose spinning cake passes through into ternary, twisting, skeining or becomes tube, promptly makes coloured floss silk.Omit painted silk skeining, dyeed, burst at the seams, become operation such as tube.
Embodiment 4: spinning dyeing viscose
Spinning dyeing viscose: look jail (level): 3.5-5.0; Dyeing (level): 3.5-5.0; Residual sulphur (mg/100g) :≤10; Oil content (%): 0.1-0.3; PH:6-9; Fiber number (dtex): 155～166; Dry strength (CN): 280～330; Dried stretching (%): 16.0～19.0; Wet stretch (%): 20～25; Wet powerful (CN): 140～180; The twist (twist with the fingers/100m): 88～90; Section: uniform in shaping, no thickness silk, sawtooth shrinks obviously.
Embodiment 5: dyed through spinning and scouring procedure floss silk
Floss silk is pressed the method production of embodiment 3, the 150D floss silk product index that obtains: floss silk is done fracture strength 1.5～3.0 CN/dtex; Do the fracture strength coefficient of variation 0～8%; Driedly stretch 15～30%; The twist coefficient of variation 0～10%; End breakage rate 0～1 ‰; Regain 8～20%.
The floss silk product feature is: full, the rich color of color and luster, and comfortable feel, COLOR FASTNESS height, following process is pollution-free, and is easy to use.
The yellow spinning dyeing viscose of embodiment 6:H015
1. according to the weight of producing coloured artificial fibre, calculate required dye dosage, in the fine ratio of first is added.
2. dyestuff is scattered in an amount of demineralized water; add an amount of alkali; add reductant and oxidant again; the addition of reductant and oxidant is respectively 1～5 times and 0.5～2 times of reaction molal quantity; use the demineralized water constant volume then, the liquor capacity behind the constant volume is 0.5%～10% of a viscose glue volume, solution is filled in the storage tank again; remove impurity particle, the top adds nitrogen protection.Use up as early as possible after dye liquor prepares, be advisable to be no more than three days.
3. with measuring pump dye liquor is joined in the viscose glue pipeline, locking instantaneous addition of dye liquor and viscose glue flow-rate ratio, the viscose glue behind the adding dye liquor at first mixes by one section static mixer, enters in the spinning glue jar to mix again, carry with gumming pump then, by the secondary static mixer to the board spinning.
4. carry out spinning operation by normal process, send concise operation, through compress and wash, winder after the oven dry, damping, can obtain the yellow artificial fibre of finished product H015.
Relevant parameter is with reference to aforementioned each embodiment among this embodiment.
The yellow dyed through spinning and scouring procedure floss silk of embodiment 7:H015
With embodiment 6 the 4. in the step spinning cake after the damping directly become ternary, twisting, skeining or become tube, can obtain the yellow dyed through spinning and scouring procedure floss silk of finished product H015.
Embodiment 8
What prior art adopted is that physics is painted, and color is attached to the silk surface, the granularity heterogeneity, and not only spinnability is poor, and other auxiliary agents of adding can not better controlled chemical reaction change procedure, keeps dyestuff luminosity originally.And the present invention is by chemical reaction, the dye molecule in the dye liquor is separated out through chemical change, and the central change of molecular structure that existed, and also reducing dye itself has that it is bright in luster, and the characteristics of good brightness are so kept his photosensitiveness that has.
Provide three kinds of colour brightness values of the present invention below:
ZS0122 (golden yellow): 75.73
H015 (yellow): 78.98
B075 (black): 12.28.
Claims (17)
1. spinning dyeing viscose production method is characterized in that: add reductant and oxidant in dyestuff, with above-mentioned dyestuff and the mixed viscose glue that must dye of viscose glue, the seeing-off deck spinning obtains to reduce strand; The reduction strand concise spins the experienced process or when spinning experienced process and finishing, oxidation under acid or alkali environment, colour developing form spinning dyeing viscose from being formed into.
2. spinning dyeing viscose production method according to claim 1, it is characterized in that: processing step is as follows:
A, mill base preparation: according to the requirement of viscose color, take by weighing one or more dyestuffs, its mixing is distributed in the demineralized water, add alkaline solution, add reductant and oxidant in solution, use the demineralized water constant volume at last, it is standby again mill base to be made in the solution filtration;
B, viscose glue color matching: standby color paste is joined the viscose glue pipe, after fully mixing, must go back ortho states dyestuff or solubilised state dyestuff, be transported to the board spinning;
C, dyeing: after dye molecule in the dye liquor and viscose glue molecule fully mix, enter in the acid bath through spinneret orifice, under oxidant and acid effect, go back the ortho states dyestuff or the solubilised state dyestuff is oxidized, strand begins colour developing;
D, spinning: form dyed through spinning and scouring procedure spinning cake or skein silk;
E, post processing: spinning cake or skein silk send concise operation, finally are fixed into the color of expection after fully through peroxidization, through compress and wash, winder after the oven dry, damping, make the spinning dyeing viscose product.
3. spinning dyeing viscose production method according to claim 1, it is characterized in that: processing step is as follows:
A, mill base preparation: according to the requirement of viscose color, take by weighing one or more dyestuffs, its mixing is distributed in the demineralized water, add alkaline solution, in solution, add reductant and oxidant, use the demineralized water constant volume at last, solution is filled in the storage tank, it is standby to make mill base again;
B, viscose glue color matching: standby color paste is joined in the viscose glue pipe, after fully mixing, must go back ortho states dyestuff or solubilised state dyestuff, be transported to the board spinning;
C, spinning: after going back dye molecule in ortho states dyestuff or the solubilised state dyestuff and viscose glue molecule and fully mixing, enter in the acid bath through spinneret orifice, by spin continuously, semicontinuous spin or the special-shaped flat production process of spinning is carried out spinning production, form spinning cake or skein silk;
D, dyeing: behind spinning cake or the skein silk disacidify, it is inserted alkaline environment, under the effect of oxidant and alkali, go back the ortho states dyestuff or the solubilised state dyestuff is oxidized, strand begins colour developing.
E, post processing: spinning cake or skein silk send concise operation, finally are fixed into the color of expection after fully through peroxidization, compress and wash, winder after the oven dry, damping;
4. according to claim 1,2 or 3 described spinning dyeing viscose production methods, it is characterized in that: dyestuff adopts reducing dye, SULPHUR DYES or water-insoluble organic dyestuff.
5. according to claim 1,2 or 3 described spinning dyeing viscose production methods, it is characterized in that: the addition of reductant and oxidant is respectively 1～5 times and 0.5～2 times of reaction molal quantity.
6. according to claim 1,2 or 3 described spinning dyeing viscose production methods, it is characterized in that: reductant is sodium hydrosulfite or thiourea dioxide.
7. according to claim 1,2 or 3 described spinning dyeing viscose production methods, it is characterized in that: oxidant is H
2O
2, NaNO
2, sodium dichromate or sodium chlorite.
8. according to claim 2 or 3 described spinning dyeing viscose production methods, it is characterized in that: alkaline solution is the NaOH aqueous solution.
9. according to claim 2 or 3 described spinning dyeing viscose production methods, it is characterized in that: the liquor capacity behind the constant volume is 0.5%～10% of a viscose glue volume.
10. according to claim 2 or 3 described spinning dyeing viscose production methods, it is characterized in that: mill base concentration: 0.005%～10%; Contain alkali 2～6%.
11. according to claim 2 or 3 described spinning dyeing viscose production methods; it is characterized in that: in the viscose glue color matching operation; standby color paste is packed in the storage device; and secluding air protection; join in proportion in the viscose glue pipe,, enter again in the viscose glue surge tank and mix through after mixing arrangement fully mixes; the viscose glue of will matching colors is carried with gumming pump, delivers to the board spinning by static mixer.
12., it is characterized in that: in the dyeing viscose glue: first fibre: 7.9～8.3% according to claim 2 or 3 described spinning dyeing viscose production methods
Degree of ripeness: 8.0～12.0ml
Contain alkali: 5.9～6.1%
Surface tension: 42～56 (dymes/cm)
Viscosity: 25～45 seconds
13., it is characterized in that: spinning cake or skein silk acid content according to claim 2 or 3 described spinning dyeing viscose production methods :≤5%, residue esterification degree :≤2.0%.
14. according to claim 2 or 3 described spinning dyeing viscose production methods, it is characterized in that: the device that adopts in the described mill base preparation has dye liquor blend tank, dye liquor storage tank, grinding mill, dye liquor filter, dye liquor filter pump, circulating pump, screw pump, frequency converter; The device that comprises in the described viscose glue color matching has viscose glue delivery pump, viscose glue surge tank, static mixer, screw pump, circulating pump, measuring pump, electromagnetic flowmeter, differential pressure transmitter, electrical equipment automatic control system.
15. spinning dyeing viscose is characterized in that: look jail level 3.5～5.0; Dyeing level 3.5～5.0; Residual sulphur≤10mg/100g; Oil content 0.1～-0.3%; PH6～9; Fiber number 155～166dtex; Dry strength 280～330CN; Driedly stretch 16.0～19.0%; Wet and stretch 20～25%; Wet powerful 140～180 CN; The twist 88～90 sth. made by twisting/100m.
16. adopt the floss silk production method of claim 2 or 3 spinning dyeing viscose production methods, it is characterized in that: after the post processing damping operation, the spinning dyeing viscose spinning cake passes through into ternary, twisting, skeining or becomes tube, promptly makes dyed through spinning and scouring procedure floss silk.
17. dyed through spinning and scouring procedure floss silk according to claim 16 is characterized in that: floss silk is done fracture strength 1.5～3.0CN/dtex; Do the fracture strength coefficient of variation 0～8%; Driedly stretch 15～30%; The twist coefficient of variation 0～10%; End breakage rate 0～1 ‰; Regain 8～20%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100490706A CN101104961A (en) | 2007-05-11 | 2007-05-11 | Method for producing spinning dyeing viscose fiber and spinning dyeing viscose fiber thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100490706A CN101104961A (en) | 2007-05-11 | 2007-05-11 | Method for producing spinning dyeing viscose fiber and spinning dyeing viscose fiber thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103320878A (en) * | 2013-06-29 | 2013-09-25 | 宜宾海丝特纤维有限责任公司 | Spinning process applicable to semicontinuous high-speed spinning machine with spinning rollers in transverse arrangement |
| CN105970329A (en) * | 2016-05-26 | 2016-09-28 | 罗莱生活科技股份有限公司 | Preparation method of colorful viscose |
| CN112973212A (en) * | 2021-02-22 | 2021-06-18 | 宜宾丝丽雅股份有限公司 | Method for cleaning filter element for viscose production |
-
2007
- 2007-05-11 CN CNA2007100490706A patent/CN101104961A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103320878A (en) * | 2013-06-29 | 2013-09-25 | 宜宾海丝特纤维有限责任公司 | Spinning process applicable to semicontinuous high-speed spinning machine with spinning rollers in transverse arrangement |
| CN105970329A (en) * | 2016-05-26 | 2016-09-28 | 罗莱生活科技股份有限公司 | Preparation method of colorful viscose |
| CN105970329B (en) * | 2016-05-26 | 2018-09-18 | 罗莱生活科技股份有限公司 | A kind of preparation method of colour viscose rayon |
| CN112973212A (en) * | 2021-02-22 | 2021-06-18 | 宜宾丝丽雅股份有限公司 | Method for cleaning filter element for viscose production |
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