CN104141224B - A kind of spinning cake quick wash technique - Google Patents
A kind of spinning cake quick wash technique Download PDFInfo
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- CN104141224B CN104141224B CN201410382960.9A CN201410382960A CN104141224B CN 104141224 B CN104141224 B CN 104141224B CN 201410382960 A CN201410382960 A CN 201410382960A CN 104141224 B CN104141224 B CN 104141224B
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Abstract
A kind of spinning cake quick wash of the present invention technique, comprises washing, dezincification, desulfurization, bleaching and oiling process step, increases impurity removal process step between desulfurization and bleaching process step, between bleaching and oiling process step, increase pH value adjusting process step.The present invention adds impurity removal process step and pH value adjusting process step existing compressing and washing in technique, impurity removal process step mainly removes the sulphur be dissolved in alkali lye of cake surface, by the effect of this processing step, the sulphur be dissolved in alkali lye is flushed away, thus effectively avoid forming macula lutea on spinning cake, the effect of the pH value adjusting process step increased is adjust ph, the pH value of the cake surface after bleaching is adjusted to acid, be convenient to carrying out fast of oiling process step, to oil effect with raising, the hydrogen peroxide on cake surface can also be removed simultaneously, avoid because hydrogen peroxide residue is on spinning cake, spinning cake is caused to occur flaw point.
Description
Technical field
The present invention relates to viscose filament yarn aftertreatment technology, particularly relate to and treatment process is compressed and washed to spinning cake.
Background technology
Spinning cake washing process is the critical process that after viscose rayon, operation is important, after viscose filament yarn is shaped, and also need through a series of post processing and textile process process.Its objective is the esterified degree of residue eliminating strand, removing metallic salt, reduces sulfur content, impurity on removing strand, improves the structure of long filament, improves appearance luster and the feel of long filament, improve physical mechanical and the chemical property index of long filament, prepare for long filament is applied to weave.Spinning cake post processing, because of the use difference of equipment, is divided into drip washing and compresses and washes two kinds of forms.Drip washing (washing of drip washing car) is rinsed spinning cake through chemically treated various solution with a large amount of, washes away the impurity on strand.This kind goes deimpurity method to be from spinning cake externally to spinning cake internal penetration, washs fault spinning cake, eliminate gradually now with drip washing car; Be that to compress and wash (Pressure-washing apparatus washing) be pass through from spinning cake Inside To Outside under certain pressure effect with through chemically treated various solution, reach the object of impurity on eccysis strand, existing treatment process generally adopts and compresses and washes technique
As publication number CN102505469A, publication date is that the Chinese invention patent in June 20 in 2012 discloses and compresses and washes processing method in a kind of viscose filament yarn aftertreatment technology, comprises following processing step: washing: washed by viscose filament yarn; Dezincify: with the water lotion containing complexing agent, dezincification process is carried out to the viscose filament yarn after washing; Desulfurization: desulfurization process is carried out to viscose filament yarn with aqueous slkali; Bleaching: bleaching is carried out to viscose filament yarn with bleaching agent; Oil: with finish, oiling treatment is carried out to viscose filament yarn.The present invention can effectively process the Zn compressed and washed in washing process
2+, thus control spinning cake produces hickie.
And for example: publication number is CN102418261A, publication date is that the Chinese invention patent on April 18th, 2012 discloses a kind of being applicable to and compresses and washes technique in protein viscose filament rayon refining, belongs to textile industry viscose filament yarn production field.The present invention is intended to solve the caustic scrubbing step compressed and washed in flow process of the prior art makes the protein dissolution on azelon come off, cause low, the easy dry linting of product strength, dye problem that is uneven and contaminated environment, by the improvement to washing process, effectively can either carry out compressing and washing of azelon viscose filament yarn, make again that final product intensity is high, not easily dry linting, even dyeing and free from environmental pollution.
Foregoing invention patent is the washing methods of 14 erect-positions, its objective is by a series of continuous print technical process, make spinning cake realize removing the various impurity that strand adheres in washing cart, and carry out oiling treatment, to improve strand outward appearance, improve physical and mechanical properties and the processing characteristics of strand.Due to the strand coiling characteristic of spinning cake, cause the part sulphur be attached on strand to be dissolved in alkali lye and fail to be gone out by water completely afterwards, be enriched in strand ectonexine and end face, cause spinning cake to produce macula lutea.Meanwhile, above-mentioned technique is long by the time, and water consumption is large, chemical liquid consumption is also comparatively large, also more owing to compressing and washing the improper fault spinning cake that causes.
Summary of the invention
In order to overcome the existing defect of compressing and washing technique and existing, the invention provides a kind of spinning cake quick wash technique, using this washers' artistic skill to shorten wash time, reducing the consumption of cleaning solution and water, washing spinning cake out without macula lutea, without fault.
A kind of spinning cake quick wash technique, comprise washing, dezincification, desulfurization, bleaching and oiling process step, it is characterized in that: between desulfurization and bleaching process step, increase impurity removal process step, between bleaching and oiling process step, increase pH value adjusting process step.
The concrete technology of described impurity removal process step is: divide five stations to wash spinning cake with the soft water of 55 ~ 57 DEG C, and washing time of often standing is 12 ~ 15 minutes, and hydraulic pressure is 0.02 ~ 0.03MPa, and soft water flux is 50 ~ 60m
3/ h, the pH value of soft water is 10 ~ 11.
The concrete technology of described pH value adjusting process step is: wash spinning cake with the water lotion containing acid solution, the pH value of water lotion is 6 ~ 7, and the concentration of acid solution is 5.5 ~ 6.5g/L, and the temperature of soft water is 40 ~ 51 DEG C, washing time is 12 ~ 15 minutes, and the flow of water lotion is 30 ~ 40m
3/ h, hydraulic pressure is 0.02 ~ 0.03MPa.
Described acid solution is multiple-effect acid, and the composition of multiple-effect acid can be hydrochloric acid, sulfuric acid or both mixtures.
The concrete technology of described washing process step is: divide three station washing spinning cakes with soft water, the temperature of three station washings is 40 ~ 51 DEG C, and flow is 50 ~ 60m
3/ h, hydraulic pressure is 0.02 ~ 0.03MPa, and washing time of often standing is 12 ~ 15 minutes, and the pH value of soft water is 2.0.
The concrete technology of described Dezincification process step is: carry out dezincification process with the water lotion containing complexing agent to the spinning cake after washing process step, washing temperature is 51 ~ 55 DEG C, and flow is 50 ~ 60m
3/ h, hydraulic pressure is 0.02 ~ 0.03MPa, and the time is 12 ~ 15 minutes, and the pH value of water lotion is 5.5, and the concentration of complexing agent is 0.11 ~ 0.12g/L.
Complexing agent is EDTA, NTA or both mixtures.
EDTA is disodium ethylene diamine tetraacetate, and NTA is sodium ammonium triacetate.
The concrete technology of described sulfur removal technology step is: carry out desulfurization process with aqueous slkali to the spinning cake after dezincification, be specifically divided into two station desulfurization, the temperature of alkali lye is 57 ~ 59 DEG C, and flow is 40 ~ 50m
3/ h, hydraulic pressure is 0.02 ~ 0.03MPa, and the time of often standing is 12 ~ 15 minutes, and alkali lye pH value is 12.0, and the concentration of alkali lye is 3.5 ~ 5.5g/L.
Aqueous slkali is sodium hydroxide solution.
The concrete technology of described bleaching process step is: carry out bleaching with hydrogen peroxide to the spinning cake after removal of impurities, and the temperature of hydrogen peroxide is 56 ~ 58 DEG C, and flow is 30 ~ 40m
3/ h, hydraulic pressure is 0.02 ~ 0.03MPa, and the time is 12 ~ 15 minutes, and pH value is 8 ~ 9, and hydrogen peroxide concentration is 0.4 ~ 0.6g/L.
The concrete technology of described oiling process step is: temperature is 40 ~ 45 DEG C, and flow is 30 ~ 40m
3/ h, hydraulic pressure is 0.02 ~ 0.03MPa, and the time is 12 ~ 15 minutes, and pH value is 7 ~ 8, and oil concentration is 3.0 ~ 5.5g/L.
The present invention has the following advantages:
1, the present invention includes washing, dezincification, desulfurization, bleaching and oiling process step, it is characterized in that: between desulfurization and bleaching process step, increase impurity removal process step, between bleaching and oiling process step, increase pH value adjusting process step.The present invention adds impurity removal process step and pH value adjusting process step existing compressing and washing in technique, impurity removal process step mainly removes the sulphur be dissolved in alkali lye of cake surface, by the effect of this processing step, the sulphur be dissolved in alkali lye is flushed away, thus effectively avoid forming macula lutea on spinning cake, the effect of the pH value adjusting process step increased is adjust ph, the pH value of the cake surface after bleaching is adjusted to acid, be convenient to carrying out fast of oiling process step, to oil effect with raising, the hydrogen peroxide on cake surface can also be removed simultaneously, avoid because hydrogen peroxide residue is on spinning cake, spinning cake is caused to occur flaw point.
2, the concrete technology of impurity removal process step of the present invention is: divide five stations to wash spinning cake with the soft water of 55 ~ 57 DEG C, and washing time of often standing is 12 ~ 15 minutes, and hydraulic pressure is 0.02 ~ 0.03MPa, and soft water flux is 50 ~ 60m
3/ h, the pH value of soft water is 10 ~ 11.Four stations are divided to wash spinning cake with the soft water of 55 ~ 57 DEG C, washing time of often standing is 12 ~ 15 minutes, five stations have washing 60 ~ 75 minutes altogether, during this period of time, spinning cake is rinsed repeatedly, fully ensure that the sulphur be dissolved in alkali lye of cake surface is all washed away by soft water, and the soft water of 55 ~ 57 DEG C is the strongest to the alkali lye dirty removal capacities being dissolved with sulphur, hydraulic pressure is 0.02 ~ 0.03MPa, and soft water flux is 50 ~ 60m
3/ h, the control of hydraulic pressure and flow ensures that the alkali lye containing sulphur effectively washes away by soft water, can not thrust spinning cake simultaneously, cause fracture of wire.The concrete technology of pH value adjusting process step is: wash spinning cake with the water lotion containing acid solution, the pH value of water lotion is 6 ~ 7, and the concentration of acid solution is 5.5 ~ 6.5g/L, and the temperature of soft water is 40 ~ 51 DEG C, and washing time is 12 ~ 15 minutes, and the flow of water lotion is 30 ~ 40m
3/ h, hydraulic pressure is 0.02 ~ 0.03MPa.The pH value of water lotion is 6 ~ 7, the concentration of acid solution is 5.5 ~ 6.5g/L, the temperature of soft water is 40 ~ 51 DEG C, spinning cake is compressed and washed by such water lotion, reduce the pH value of the rear spinning cake of bleaching, be beneficial to normally carrying out of oiling process, the control of acid strength ensures that little simultaneously also the guaranteeing of the environmental pollution of waste liquid to surrounding after compressing and washing reaches the effect reducing pH value, the time of this processing step process is 12 ~ 15 minutes, the pH value in each place of spinning cake is adjusted to the condition meeting and oil, reduce simultaneously and compress and wash the time, reduce the consumption of water lotion.
3, the concrete technology of washing process step is: divide three station washing spinning cakes with soft water, the temperature of three station washings is 40 ~ 51 DEG C, and flow is 50 ~ 60m
3/ h, hydraulic pressure is 0.02 ~ 0.03MPa, and washing time of often standing is 12 ~ 15 minutes, and the pH value of soft water is 2.0.This processing step is the first step that spinning cake compresses and washes, its objective is the various impurity of removing spinning cake after shaping on surface, this step is divided into three stations washings washing time of often standing to be 12 ~ 15 minutes, and three stations wash 36 ~ 45 minutes altogether, a soft water water pump recycles, and reduces the use amount of soft water.
4, the concrete technology of Dezincification process step is: carry out dezincification process with the water lotion containing EDTA to the spinning cake after washing process step, washing temperature is 51 ~ 55 DEG C, and flow is 50 ~ 60m
3/ h, hydraulic pressure is 0.02 ~ 0.03MPa, and the time is 12 ~ 15 minutes, and the pH value of water lotion is the concentration of 5.5, EDTA is 0.11 ~ 0.12g/L.This processing step is the zinc on removing cake surface, reduces the use amount of water lotion, reduce the consumption of water while ensureing except dezincify.
5, the concrete technology of sulfur removal technology step is: carry out desulfurization process with aqueous slkali to the spinning cake after dezincification, be specifically divided into two station desulfurization, the temperature of alkali lye is 57 ~ 59 DEG C, and flow is 40 ~ 50m
3/ h, hydraulic pressure is 0.02 ~ 0.03MPa, and the time of often standing is 12 ~ 15 minutes, and alkali lye pH value is 12.0, and the concentration of alkali lye is 3.5 ~ 5.5g/L.The effect of this processing step is desulfurization, and the desulfurized effect that the temperature of alkali lye controls at 57 ~ 59 DEG C is good, and flow is 40 ~ 50m
3/ h, hydraulic pressure is 0.02 ~ 0.03MPa, and the time of often standing is 12 ~ 15 minutes, ensures that desulfurization is thorough, is all removed by the sulphur-containing substance of cake surface.
6, the concrete technology of bleaching process step is: carry out bleaching with hydrogen peroxide to the spinning cake after removal of impurities, and the temperature of hydrogen peroxide is 56 ~ 58 DEG C, and flow is 30 ~ 40m
3/ h, hydraulic pressure is 0.02 ~ 0.03MPa, and the time is 12 ~ 15 minutes, and pH value is 8 ~ 9, and hydrogen peroxide concentration is 0.4 ~ 0.6g/L.The effect of bleaching process step is the quality improving spinning cake, and the control of these parameters, the while of ensureing that bleaching effect is good, is unduly bleached, and produces the strand that not composite diameter requires.
7, the concrete technology of oiling process step is: temperature is 40 ~ 45 DEG C, and flow is 30 ~ 40m
3/ h, hydraulic pressure is 0.02 ~ 0.03MPa, and the time is 12 ~ 15 minutes, and pH value is 7 ~ 8, and oil concentration is 3.0 ~ 5.5g/L.Make finish be attached to strand on the surface, improve its physical property.
8, the present invention includes washing, dezincification, desulfurization, removal of impurities, bleaching, pH value set-up procedure and oiling process step, washing is completed by 1,2,3 stations, dezincify to be completed by 4 stations, desulfurization is completed by 5,6 stations, removal of impurities is completed by 7,8,9,10,11 stations, bleaching is completed by 12 stations, pH value set-up procedure 13 station completes, oil and to be completed by 14 stations, totally 14 stations complete whole washing process, time of often standing is 12 ~ 15 minutes, 14 stations share 168 ~ 210 minutes time, whole technique is carried out continuously, and the amount that 14 stations consume soft water is altogether 124 ~ 190m
3, the alkali of consumption is 64 ~ 137.5kg, and the acid solution of consumption is 33 ~ 65kg, consumes as hydrogen peroxide is 2.4 ~ 6kg.
Detailed description of the invention
Embodiment 1
The present embodiment is divided into 14 station washing process, and be respectively 1-3 station for washing process, 4 stations are Dezincification process, and 5-6 station is sulfur removal technology, 7-11 station is impurity removal process, and 12 stations are bleaching process, and 13 stations are pH value adjusting process, and 14 stations are oiling process.
The temperature of 1-3 station washing is 40 DEG C, and flow is 50m
3/ h, hydraulic pressure is 0.03MPa, and washing time of often standing is 12 minutes, and the pH value of soft water is 2.0.
The water lotion of 4 stations containing complexing agent carries out dezincification process to the spinning cake after washing process step, and washing temperature is 55 DEG C, and flow is 60m
3/ h, hydraulic pressure is 0.02MPa, and the time is 13 minutes, and the pH value of water lotion is 5.5, and the concentration of complexing agent is 0.11g/L.
Complexing agent is EDTA.
5-6 station aqueous slkali carries out desulfurization process to the spinning cake after dezincification, and the temperature of alkali lye is 59 DEG C, and flow is 45m
3/ h, hydraulic pressure is 0.03MPa, and the time of often standing is 13.5 minutes, and alkali lye pH value is 12.0, and the concentration of alkali lye is 5.5g/L.
Aqueous slkali is sodium hydroxide solution.
The 7-11 station soft water of 56 DEG C divides five stations to wash spinning cake, and washing time of often standing is 12 minutes, and hydraulic pressure is 0.025MPa, and soft water flux is 52m
3/ h, the pH value of soft water is 11.
12 station hydrogen peroxide carry out bleaching to the spinning cake after removal of impurities, and the temperature of hydrogen peroxide is 56 DEG C, and flow is 32m
3/ h, hydraulic pressure is 0.02MPa, and the time is 12 minutes, and pH value is 8, and hydrogen peroxide concentration is 0.45g/L.
13 water lotions of station containing acid solution wash spinning cake, and the pH value of water lotion is 7, and the concentration of acid solution is 5.59g/L, and the temperature of soft water is 44 DEG C, and washing time is 13.5 minutes, and the flow of water lotion is 36m
3/ h, hydraulic pressure is 0.028MPa.
14 station oiling process: temperature is 45 DEG C, and flow is 38m
3/ h, hydraulic pressure is 0.02MPa, and the time is 12 minutes, and pH value is 7.6, and oil concentration is 3.8g/L.
Embodiment 2
The present embodiment is divided into 14 station washing process, and be respectively 1-3 station for washing process, 4 stations are Dezincification process, and 5-6 station is sulfur removal technology, 7-11 station is impurity removal process, and 12 stations are bleaching process, and 13 stations are pH value adjusting process, and 14 stations are oiling process.
The temperature of 1-3 station washing is 42 DEG C, and flow is 58m
3/ h, hydraulic pressure is 0.028MPa, and washing time of often standing is 14 minutes, and the pH value of soft water is 2.0.
The water lotion of 4 stations containing complexing agent carries out dezincification process to the spinning cake after washing process step, and washing temperature is 53 DEG C, and flow is 54m
3/ h, hydraulic pressure is 0.03MPa, and the time is 14 minutes, and the pH value of water lotion is 5.5, and the concentration of complexing agent is 0.11g/L.
Complexing agent is NTA.
5-6 station aqueous slkali carries out desulfurization process to the spinning cake after dezincification, and the temperature of alkali lye is 59 DEG C, and flow is 41m
3/ h, hydraulic pressure is 0.029MPa, and the time of often standing is 14 minutes, and alkali lye pH value is 12.0, and the concentration of alkali lye is 3.58g/L.
Aqueous slkali is sodium hydroxide solution.
The 7-11 station soft water of 56.5 DEG C divides five stations to wash spinning cake, and washing time of often standing is 15 minutes, and hydraulic pressure is 0.03MPa, and soft water flux is 55m
3/ h, the pH value of soft water is 11.
12 station hydrogen peroxide carry out bleaching to the spinning cake after removal of impurities, and the temperature of hydrogen peroxide is 57 DEG C, and flow is 35m
3/ h, hydraulic pressure is 0.02MPa, and the time is 12 minutes, and pH value is 9, and hydrogen peroxide concentration is 0.4g/L.
13 water lotions of station containing acid solution wash spinning cake, and the pH value of water lotion is 7, and the concentration of acid solution is 5.5g/L, and the temperature of soft water is 48 DEG C, and washing time is 13.5 minutes, and the flow of water lotion is 30m
3/ h, hydraulic pressure is 0.02MPa.
14 station oiling process: temperature is 44 DEG C, and flow is 37m
3/ h, hydraulic pressure is 0.029MPa, and the time is 15 minutes, and pH value is 7, and oil concentration is 4.4g/L.
Embodiment 3
The present embodiment is divided into 14 station washing process, and be respectively 1-3 station for washing process, 4 stations are Dezincification process, and 5-6 station is sulfur removal technology, 7-11 station is impurity removal process, and 12 stations are bleaching process, and 13 stations are pH value adjusting process, and 14 stations are oiling process.
The temperature of 1-3 station washing is 51 DEG C, and flow is 52m
3/ h, hydraulic pressure is 0.02MPa, and washing time of often standing is 12 minutes, and the pH value of soft water is 2.0.
The water lotion of 4 stations containing complexing agent carries out dezincification process to the spinning cake after washing process step, and washing temperature is 51 DEG C, and flow is 50m
3/ h, hydraulic pressure is 0.02MPa, and the time is 12 minutes, and the pH value of water lotion is 5.5, and the concentration of complexing agent is 0.11g/L.
The mixture that complexing agent is EDTA and NTA.
5-6 station aqueous slkali carries out desulfurization process to the spinning cake after dezincification, and the temperature of alkali lye is 57 DEG C, and flow is 40m
3/ h, hydraulic pressure is 0.02MPa, and the time of often standing is 12 minutes, and alkali lye pH value is 12.0, and the concentration of alkali lye is 3.5g/L.
Aqueous slkali is sodium hydroxide solution.
The 7-11 station soft water of 55 DEG C divides five stations to wash spinning cake, and washing time of often standing is 12 minutes, and hydraulic pressure is 0.02MPa, and soft water flux is 50m
3/ h, the pH value of soft water is 11.
12 station hydrogen peroxide carry out bleaching to the spinning cake after removal of impurities, and the temperature of hydrogen peroxide is 56 DEG C, and flow is 30m
3/ h, hydraulic pressure is 0.02MPa, and the time is 12 minutes, and pH value is 8, and hydrogen peroxide concentration is 0.4g/L.
13 water lotions of station containing acid solution wash spinning cake, and the pH value of water lotion is 6, and the concentration of acid solution is 5.5g/L, and the temperature of soft water is 40 DEG C, and washing time is 12 minutes, and the flow of water lotion is 30m
3/ h, hydraulic pressure is 0.02MPa.
14 station oiling process: temperature is 40 DEG C, and flow is 30m
3/ h, hydraulic pressure is 0.02MPa, and the time is 12 minutes, and pH value is 7, and oil concentration is 3.0g/L.
Embodiment 4
The present embodiment is divided into 14 station washing process, and be respectively 1-3 station for washing process, 4 stations are Dezincification process, and 5-6 station is sulfur removal technology, 7-11 station is impurity removal process, and 12 stations are bleaching process, and 13 stations are pH value adjusting process, and 14 stations are oiling process.
The temperature of 1-3 station washing is 51 DEG C, and flow is 60m
3/ h, hydraulic pressure is 0.03MPa, and washing time of often standing is 15 minutes, and the pH value of soft water is 2.0.
The water lotion of 4 stations containing complexing agent carries out dezincification process to the spinning cake after washing process step, and washing temperature is 55 DEG C, and flow is 60m
3/ h, hydraulic pressure is 0.03MPa, and the time is 15 minutes, and the pH value of water lotion is 5.5, and the concentration of complexing agent is 0.12g/L.
Complexing agent is EDTA.
5-6 station aqueous slkali carries out desulfurization process to the spinning cake after dezincification, and the temperature of alkali lye is 59 DEG C, and flow is 50m
3/ h, hydraulic pressure is 0.03MPa, and the time of often standing is 15 minutes, and alkali lye pH value is 12.0, and the concentration of alkali lye is 5.5g/L.
Aqueous slkali is sodium hydroxide solution.
The 7-11 station soft water of 57 DEG C divides five stations to wash spinning cake, and washing time of often standing is 15 minutes, and hydraulic pressure is 0.03MPa, and soft water flux is 60m
3/ h, the pH value of soft water is 11.
12 station hydrogen peroxide carry out bleaching to the spinning cake after removal of impurities, and the temperature of hydrogen peroxide is 58 DEG C, and flow is 40m
3/ h, hydraulic pressure is 0.03MPa, and the time is 15 minutes, and pH value is 9, and hydrogen peroxide concentration is 0.6g/L.
13 water lotions of station containing acid solution wash spinning cake, and the pH value of water lotion is 7, and the concentration of acid solution is 6.5g/L, and the temperature of soft water is 51 DEG C, and washing time is 15 minutes, and the flow of water lotion is 40m
3/ h, hydraulic pressure is 0.03MPa.
14 station oiling process: temperature is 45 DEG C, and flow is 40m
3/ h, hydraulic pressure is 0.03MPa, and the time is 15 minutes, and pH value is 8, and oil concentration is 5.5g/L.
Embodiment 5
The present embodiment is divided into 14 station washing process, and be respectively 1-3 station for washing process, 4 stations are Dezincification process, and 5-6 station is sulfur removal technology, 7-11 station is impurity removal process, and 12 stations are bleaching process, and 13 stations are pH value adjusting process, and 14 stations are oiling process.
The temperature of 1-3 station washing is 48 DEG C, and flow is 55m
3/ h, hydraulic pressure is 0.025MPa, and washing time of often standing is 13.5 minutes, and the pH value of soft water is 2.0.
The water lotion of 4 stations containing complexing agent carries out dezincification process to the spinning cake after washing process step, and washing temperature is 53.5 DEG C, and flow is 55m
3/ h, hydraulic pressure is 0.025MPa, and the time is 13.5 minutes, and the pH value of water lotion is 5.5, and the concentration of complexing agent is 0.11g/L.
Complexing agent is EDTA.
5-6 station aqueous slkali carries out desulfurization process to the spinning cake after dezincification, and the temperature of alkali lye is 58 DEG C, and flow is 45m
3/ h, hydraulic pressure is 0.025MPa, and the time of often standing is 13.5 minutes, and alkali lye pH value is 12.0, and the concentration of alkali lye is 4.2g/L.
Aqueous slkali is sodium hydroxide solution.
The 7-11 station soft water of 56 DEG C divides five stations to wash spinning cake, and washing time of often standing is 13.5 minutes, and hydraulic pressure is 0.025MPa, and soft water flux is 55m
3/ h, the pH value of soft water is 10.5.
12 station hydrogen peroxide carry out bleaching to the spinning cake after removal of impurities, and the temperature of hydrogen peroxide is 57 DEG C, and flow is 35m
3/ h, hydraulic pressure is 0.025MPa, and the time is 13.5 minutes, and pH value is 8.5, and hydrogen peroxide concentration is 0.5g/L.
13 water lotions of station containing acid solution wash spinning cake, and the pH value of water lotion is 6.5, and the concentration of acid solution is 6.0g/L, and the temperature of soft water is 46 DEG C, and washing time is 13.5 minutes, and the flow of water lotion is 35m
3/ h, hydraulic pressure is 0.025MPa.
14 station oiling process: temperature is 43 DEG C, and flow is 35m
3/ h, hydraulic pressure is 0.025MPa, and the time is 13.5 minutes, and pH value is 7.5, and oil concentration is 4.2g/L.
Concrete technology of the present invention is as shown in the table
The table of comparisons of the data that embodiments of the invention draw and prior art is as follows:
Claims (8)
1. a spinning cake quick wash technique, comprise washing, dezincification, desulfurization, bleaching and oiling process step, it is characterized in that: between desulfurization and bleaching process step, increase impurity removal process step, pH value adjusting process step is increased between bleaching and oiling process step, the concrete technology of described impurity removal process step is: divide five stations to wash spinning cake with the soft water of 55 ~ 57 DEG C, washing time of often standing is 12 ~ 15 minutes, and hydraulic pressure is 0.02 ~ 0.03MPa, and soft water flux is 50 ~ 60m
3/ h, the pH value of soft water is 10 ~ 11.
2. a kind of spinning cake quick wash technique according to claim 1, it is characterized in that: the concrete technology of described pH value adjusting process step is: wash spinning cake with the water lotion containing acid solution, the pH value of water lotion is 6 ~ 7, the concentration of acid solution is 5.5 ~ 6.5g/L, the temperature of soft water is 40 ~ 51 DEG C, washing time is 12 ~ 15 minutes, and the flow of water lotion is 30 ~ 40m
3/ h, hydraulic pressure is 0.02 ~ 0.03MPa.
3. a kind of spinning cake quick wash technique according to claim 2, is characterized in that: the concrete technology of described washing process step is: divide three station washing spinning cakes with soft water, the temperature of three station washings is 40 ~ 51 DEG C, and flow is 50 ~ 60m
3/ h, hydraulic pressure is 0.02 ~ 0.03MPa, and washing time of often standing is 12 ~ 15 minutes, and the pH value of soft water is 2.0.
4. a kind of spinning cake quick wash technique according to claim 1, it is characterized in that: the concrete technology of described Dezincification process step is: with the water lotion containing complexing agent, dezincification process is carried out to the spinning cake after washing process step, washing temperature is 51 ~ 55 DEG C, and flow is 50 ~ 60m
3/ h, hydraulic pressure is 0.02 ~ 0.03MPa, and the time is 12 ~ 15 minutes, and the pH value of water lotion is 5.5, and the concentration of complexing agent is 0.11 ~ 0.12g/L.
5. a kind of spinning cake quick wash technique according to claim 4, is characterized in that: complexing agent is EDTA, NTA or both mixtures.
6. a kind of spinning cake quick wash technique according to claim 1, it is characterized in that: the concrete technology of described sulfur removal technology step is: with aqueous slkali, desulfurization process is carried out to the spinning cake after dezincification, specifically be divided into two station desulfurization, the temperature of alkali lye is 57 ~ 59 DEG C, and flow is 40 ~ 50m
3/ h, hydraulic pressure is 0.02 ~ 0.03MPa, and the time of often standing is 12 ~ 15 minutes, and alkali lye pH value is 12.0, and the concentration of alkali lye is 3.5 ~ 5.5g/L.
7. a kind of spinning cake quick wash technique according to claim 1, is characterized in that: the concrete technology of described bleaching process step is: carry out bleaching with hydrogen peroxide to the spinning cake after removal of impurities, and the temperature of hydrogen peroxide is 56 ~ 58 DEG C, and flow is 30 ~ 40m
3/ h, hydraulic pressure is 0.02 ~ 0.03MPa, and the time is 12 ~ 15 minutes, and pH value is 8 ~ 9, and hydrogen peroxide concentration is 0.4 ~ 0.6g/L.
8. a kind of spinning cake quick wash technique according to claim 1, it is characterized in that: the concrete technology of described oiling process step is: temperature is 40 ~ 45 DEG C, flow is 30 ~ 40m
3/ h, hydraulic pressure is 0.02 ~ 0.03MPa, and the time is 12 ~ 15 minutes, and pH value is 7 ~ 8, and oil concentration is 3.0 ~ 5.5g/L.
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Citations (6)
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| JP2001329461A (en) * | 2000-05-12 | 2001-11-27 | Toho Tenax Co Ltd | Flame-retardant polysaccharide based fiber and method for producing the same |
| CN101109139A (en) * | 2007-08-20 | 2008-01-23 | 四川省宜宾惠美线业有限责任公司 | Synchronous padding method for raw spinning cake |
| CN102352539A (en) * | 2011-07-27 | 2012-02-15 | 杭州奥通特种纤维技术有限公司 | Manufacturing method of silicon-nitrogen containing environmental protection and flame retardant viscose staple fiber |
| CN102418261A (en) * | 2011-09-26 | 2012-04-18 | 宜宾丝丽雅股份有限公司 | Pressure washing technology suitable for refinement of protein viscose filament |
| CN102505469A (en) * | 2011-09-27 | 2012-06-20 | 宜宾海丝特纤维有限责任公司 | Pressure washing treatment method in viscose filament yarn aftertreatment process |
| CN103422290A (en) * | 2013-08-29 | 2013-12-04 | 宜宾丝丽雅股份有限公司 | High-capacity viscose staple fiber post-treatment production line |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001329461A (en) * | 2000-05-12 | 2001-11-27 | Toho Tenax Co Ltd | Flame-retardant polysaccharide based fiber and method for producing the same |
| CN101109139A (en) * | 2007-08-20 | 2008-01-23 | 四川省宜宾惠美线业有限责任公司 | Synchronous padding method for raw spinning cake |
| CN102352539A (en) * | 2011-07-27 | 2012-02-15 | 杭州奥通特种纤维技术有限公司 | Manufacturing method of silicon-nitrogen containing environmental protection and flame retardant viscose staple fiber |
| CN102418261A (en) * | 2011-09-26 | 2012-04-18 | 宜宾丝丽雅股份有限公司 | Pressure washing technology suitable for refinement of protein viscose filament |
| CN102505469A (en) * | 2011-09-27 | 2012-06-20 | 宜宾海丝特纤维有限责任公司 | Pressure washing treatment method in viscose filament yarn aftertreatment process |
| CN103422290A (en) * | 2013-08-29 | 2013-12-04 | 宜宾丝丽雅股份有限公司 | High-capacity viscose staple fiber post-treatment production line |
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