CN1786320A - Pretreatment technology of cotton knitted fabric cold rolling stack - Google Patents
Pretreatment technology of cotton knitted fabric cold rolling stack Download PDFInfo
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- CN1786320A CN1786320A CN 200510123079 CN200510123079A CN1786320A CN 1786320 A CN1786320 A CN 1786320A CN 200510123079 CN200510123079 CN 200510123079 CN 200510123079 A CN200510123079 A CN 200510123079A CN 1786320 A CN1786320 A CN 1786320A
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Abstract
The invention relates to cotton knitted fabrics cold rolling stacking pretreatment technique. It belongs to dye printing industry knitted fabrics pretreatment technique field. It includes the following steps: continuous full width padding, batching up, and continuous full width rinsing. It can economize water resources and electricity. The consumption of the fabric is little; and the fur and efficiency can be respectively increased by about 40% and 20% comparing with traditional technique.
Description
Technical field
The present invention relates to a kind of pretreatment technology of cotton knitted fabric cold rolling stack, belong to the knitted fabric pre-treatment process technical field of dyeing.
Background technology
Traditional pre-treatment process to COTTON FABRIC (COTTON FABRIC comprise cotton machine is weaved cotton cloth and cotton knitted cloth) is to adopt the thermokalite bath process, yet, in view of COTTON FABRIC being carried out the large percentage that energy consumption that pre-treatment such as refining and bleaching pre-treatment brought accounts in total energy consumption with this technology, taking the lead in outside the native land weaving cotton cloth at cotton machine adopts cold-pad batch pretreatment to substitute the thermokalite bath process, the usage ratio of cold-pad batch pretreatment has accounted for about 30% of pre-treatment process now, this shows that cold-pad batch pretreatment has special advantages.But, cold-pad batch pretreatment can not show gratifying effect for the pre-treatment process of cotton fabrics (cloth), its main cause is that knitted fabric itself is different from woven fabric fully owing to weave weaving, it is lax that knitted fabric generally has institutional framework, the style that elasticity is big and soft, and fabric is drum braiding shape and is difficult to bear longitude and latitude tension force as the camera fabric and pads processing continuously, adopt the batch (-type) Technology for Heating Processing stage thereby cause at present the pre-treatment of knitted fabric to be processed still almost to rest on, the batch (-type) Technology for Heating Processing mainly contains following two kinds:
One moves back to boil for alkali oxygen-baths and floats heat treating process (be called for short alkali oxygen bath method), and its pre-treatment process flow process is as follows: the cloth of intaking → advance → adding caustic soda, auxiliary agent, hydrogen peroxide etc. → be warming up to more than 95 ℃ (are incubated 45～60 fens) → discharge opeing → water inlet → hot water wash → pickling neutralization → cold wash → discharge opeing.Technology preparation is: contain caustic soda 5～10g in every liter of treatment fluid, hydrogen peroxide 5～8g of 27.5%, scouring agent 2g, stabilizing agent 3～5g, chelating agent 1～2g; Bath raio 1: 10～15.
Two is high temperature and high pressure method, its pre-treatment process flow process: the cloth of intaking → advance → adding caustic soda, auxiliary agent, hydrogen peroxide etc. → pressurization is warming up to 115～120 ℃ of (being incubated 25～30 fens) → steam discharge discharge opeing → water inlet → hot water wash → pickling neutralization → cold wash → discharge opeings.Technology preparation is: contain caustic soda 5～10g in every liter of treatment fluid, hydrogen peroxide 5～8g of 27.5%, stabilizing agent 3～5g, scouring agent 2g; Bath raio 1: 10～15.
Though above technology has characteristics such as easy stability and high efficiency, but need handled under temperature (95～100 ℃) condition that high temperature closely boils about one hour or High Temperature High Pressure (115～120 ℃) situation under handle about nearly 30 minutes kinds, also need after the processing to clean with hot water, so just inevitably expend a large amount of heat energy heated water bath, and the water yield that pre-treatment expends is more than 20 times of fabric weight ratio, a large amount of heat energy is drained with discharge opeing and can't be utilized and cause huge waste, and processing cost remains high the energy consumption of enterprise thereupon rolling up.
Though Chinese patent Granted publication CN1019831B discloses a kind of cold-rolling heap printing and dyeing pretreating technology, its technological process is: grey cloth → cold rolling → clot → bank up → wash → dry semi-products.Its technology essence is: a, this technology is actual to be the flat fabric pre-treatment process, because the drum structure of knitted cloth braiding is thicker than woven cloth, in production practices, can't adopt dress to roll up the method for banking up, and the loose soft style of knitted cloth cause the big characteristics of band liquid measure also to be not suitable for banking up with volume heap method at all.B, woven fabric adopt this cold-pad-batch process, and its wetting permeability index (capillary effect) adds the detergent of 4g/l efficient detergent powder and 2ml/l during by open washing and flows that hot water wash technology improves its capillary effect more than 95 ℃ in a large number, and only reaches 4～5.4cm/30min.Use the requirement of satisfying printing and dyeing back technology fully if further improve capillary effect to 8cm/30min, the successful methods of generally acknowledging just must adopt the continuous decatizing water-washing method at present.Therefore, if knitted cloth is directly applied mechanically the process equipment and the technology of or title instruction disclosed by this patented technology, not only can't bear the comfortable style of destroying original resilient flexible through the powerful pulling force of broadwise, even the fine wrinkle defect can't eliminate in a large number appears, and, finally cause knitted fabric in back dyeing in road or printing technology process, to produce a large amount of defective phenomenons such as look pattern spot color dot because of not matching of correlative factors such as equipment and auxiliary agent.C, this technology padding liquid prescription adopts, and contains hydrogen peroxide 50～90ml of 30% in every liter of cold rolling liquid, NaOH 10～30g of 100%, stabilizing agent A 25～35g, penetrating agent JFC 3～5ml, detergent 3～5g, auxiliary agent JU4～6g, all the other are water.This is filled a prescription, and not only consumption is big but also various in style, is unfavorable for execute-in-place and management.
Again, Chinese patent Granted publication CN1166835C discloses cotton or T/C knitted fabric biology enzyme pads-the steam method pre-treatment process continuously, its technological process is: cotton or T/C knitted cloth pad alkali oxygen bathes (30% hydrogen peroxide, 10～80g/l, sodium metasilicate 10～60g/l, the moon/non-surface-active agent 0～15g/l) → decatize → fully wash → padded biology enzyme → decatize 50～120 ℃ * 20～120 minutes) → the washing enzyme that goes out.This technology essence is to adopt biology enzyme to replace the method for traditional caustic scouring cotton fiber, but this technology not only will be incubated decatize (30～70 ℃ * 20～120 minutes) in biology enzyme boiling process, and in bleaching process, still adopted high temperature steaming (decatize 50～120 ℃ * 20～120 minutes), this shows that this technology still consumes a large amount of heat energy, electric energy and water.
In addition, Chinese patent Granted publication CN1206401C discloses cotton or T/C knitted fabric oxidation dipping biology enzyme dipping batch process pre-treatment process, and its principle is still high temperature steaming and uses, and can not solve wasting of resources problem.
Comprehensive prior art, it is big as water, electricity, the steam consumption of the money/energy mainly showing as one for the cotton fabrics pre-treatment; The 2nd, the fabric loss is big; The 3rd, washing back capillary effect is undesirable.
Summary of the invention
Task of the present invention is that energy energy savings, the loss of minimizing fabric, the desirable pretreatment technology of cotton knitted fabric cold rolling stack of capillary effect will be provided.
Task of the present invention is finished like this, a kind of pretreatment technology of cotton knitted fabric cold rolling stack, it may further comprise the steps: open-Width Continuous is padded, bank up, the open-Width Continuous washing, it is earlier grey cloth 1 flush joint to be connected that described open-Width Continuous is padded, what keep the double-deck open width of its drum braiding shape to immerse continuously filling treatment fluid 3 pads groove 2 impregnation process, the dip time of the gentle grey cloth 1 of control treatment fluid 3 liquid and the gait of march of grey cloth 1, the dipping in to grey cloth 1 qi of chong channel ascending adversely, make the body expansion, grey cloth 1 roll compacting of the intact treatment fluid 3 of the dipping when going out to pad groove 2 is also controlled pick-up, and the grey cloth after the roll compacting 1 is fallen into cloth car 9; Described banking up is that cropping and the grey cloth 1 that is piled up in the cloth car 9 are in abundant sealing state, and bank up temperature and banking up the time of control; The washing of described open-Width Continuous be to the circulating water of the continuous open soaper 10 that is used to wash take single-frame to flow backwards, the clear mobile water-washing method in preceding turbid back washes grey cloth 1, in water-washing process to body qi of chong channel ascending adversely expansion, and control washing coolant-temperature gage.
Consisting of of treatment fluid 3 of the present invention: H
2O
2(27.5%) 30～80g/l, cold 15～20g/l, the cold strong 4～5g/l of helping.
Cold consisting of of helping of the present invention: 3 parts in NaOH, 2 parts in potassium hydroxide, 10 parts in sodium carbonate, 10 parts of sodium metasilicate, 30 parts of neopelexes.
Cold strong consisting of of the present invention: 70 parts of dodecyl sodium sulfates, 30 parts of fatty alcohol-ether sodium sulfates.
The time of impregnation process of the present invention is 5-10 second, and treatment fluid liquid temperature is 25-35 ℃, and the grey cloth gait of march is 30-60m/min.
It is of the present invention that qi of chong channel ascending adversely is to adopt to pad the incidental qi of chong channel ascending adversely of groove 2 mechanism and aim at grey cloth 1 and blow to body.
Pick-up of the present invention is 120-150%.
The temperature of banking up of the present invention is that 20-25 ℃, the time of banking up are 18-24h.
Of the present inventionly single-frame flow backwards, the clear mobile water-washing method in preceding turbid back be with the washing water in all the washing lattice 13 of continuous open soaper 10 by after mobile forward.
Of the present invention is to adopt the qi of chong channel ascending adversely device on the continuous open soaper 10 to make it fully expand the blow-up expansion to wetting body qi of chong channel ascending adversely to body qi of chong channel ascending adversely expansion.
With technology of the present invention to the cotton knitted fabric cold rolling stack pre-treatment compare with traditional alkali oxygen bath process, high temperature and high pressure method technology have advantage and be: the water resource of saves valuable and as electricity, the vapour of the energy significantly; Loss to fabric is respectively about 1/2nd and 1/4th of aforementioned two traditional handicrafts; Capillary effect improves respectively about 40% and 20% than traditional handicraft.
Description of drawings
Fig. 1 is the given schematic diagram that grey cloth 1 is carried out the flush joint connection of the present invention.
Fig. 2 is the given schematic diagram that pads groove 2 of the present invention.
Fig. 3 is the schematic diagram of the given continuous open soaper 10 of the present invention.
The specific embodiment
It is that earlier will be pending many or the end that claims the cotton knitted fabric 1 of multireel are carried out flush joint by form shown in Figure 1 and connected that open-Width Continuous of the present invention is padded, and keeps the double-deck open width of its drum braiding shape to immerse continuously by groove 2 contacts or the title impregnation treatment fluid 3 of padding shown in Figure 2.What Fig. 2 provided as a kind of signal is three to soak one and roll, and promptly soaks one and rolls, and promptly grey cloth 1 has entered into treatment fluid 3 Ceng Sanci in the process that 5 roll compacting of the roll to a pair of rubber system from fabric guide roll 6 are drawn, and roll compacting then shows as once.In view of the above, be understood that out and can adopt making grey cloth 1 impregnation process liquid 3 and increase by 5 pairs of grey cloths of paired roll 1 and carrying out roll compacting of more times number that soaking of using embodiment and be as required one rolled or soaked more and roll more more.Owing to The present invention be directed to cotton fabrics, therefore be preferably and soak one more and roll.Though in Fig. 2, only show a gas filled head 4 of qi of chong channel ascending adversely mechanism, be that example is furnished with three gas filled heads 4 in fact according to this figure.The effect of gas filled head 4 is for the even saturation process liquid of the cloth cover that makes grey cloth 13 and prevents defect such as roll mark wrinkle.Pick-up for the grey cloth 1 that goes out to pad groove 2 is controlled by a pair roller 5, tighten a pair roller 5, then the pick-up of grey cloth 1 is little, otherwise it is then big, the pick-up of general control grey cloth 1 front, rear, left and right is at 120-150%, and the sample cloth after rolling before rolling by clip takes by weighing grammes per square metre and just can know correct pick-up.Being shaped as the circular of hollow or claiming the cover round of gas filled head 4 is covered with fumarole all around, when grey cloth 1 passes through in the central authorities of gas filled head 4, then can be subjected to the injection of air-flow, makes the body expansion.The gait of march of grey cloth 1 can be controlled by the rotating speed of regulating fabric guide roll 6, and generally the speed 30-60m/min with grey cloth 1 is advisable.Be provided with the admission opening 7 that is used to feed steam in the bottom of padding groove 2, have only when hanging down because of environment temperature winter, just by admission opening 7 to padding groove 2 delivering vapors, use the temperature that ensures treatment fluid 3 and remain on 25-35 ℃, and keep the liquid temperature of treatment fluid 3 and operation field environment temperature to differ in 5 ℃ of scopes, the horizontal liquid level of treatment fluid 3 requires to keep basic weighing apparatus fixed as far as possible.Grey cloth 1 impregnation process 5-10 after second and habitually practise by textile printing and dyeing industry after via roll 5 roll compacting drop into corresponding to the cloth car 9 below it toward rereeling open width cropping mechanism 8 neatly.Be nested with as by the sealing bag of polyvinyl chloride film system and tighten the sealing that the careful anti-gas-leak of sack carries out 18-24h and bank up the cloth car 9 that is loaded with grey cloth 1 is outer, the temperature of banking up is 20-25 ℃ again.
The process of banking up is that basic species, oxide and surfactant etc. in the treatment fluid 3 are to the process of cotton fiber commensal and knitting finish generation chemistry and physical action, this process should guarantee that the treatment fluid of the contained band of body of grey cloth 1 does not run off, wherein hydrolysis scission of link and saponification, the oxidized decolouring of pigment take place in the pectin of raw cotton symbiosis, cotton fat, nitrogen substance and knitting finish etc.The temperature of banking up is controlled at 20～25 ℃, and the time can guarantee that at 18～24 hours hydrogen peroxide plays one's part to the full, and the temperature of banking up height then can lack relatively by the time.If the temperature of painstakingly will banking up is chosen as more than 25 ℃, the selection of time of banking up is more than the 24h, and it is desirable that then yes, but can not think according to this to have and take off the technical scheme category that the present invention limits.Consider composite factors such as the convenience of production and product percent of pass, the district of will padding and bank up as much as possible is arranged in same Production Regional for well.
The open-Width Continuous washing is the alleged open washing of custom, adopts given continuous open soaper 10 open washings of Fig. 3.For improving washing effect and using water wisely, more washing is adopted to soak and is rolled and the clear mobile water-washing method in preceding turbid back more, so-called soak to roll with preceding more can be understood by figure clearly after turbid, is being furnished with paired roll 12 corresponding to the rear portion of each deflector roll 11, more particularly, each washing lattice 13 is furnished with a pair roller 12, is example with 12 washing lattice 13, then be furnished with 12 and form right roll 12, embody to soak more by this and roll more; Grey cloth 1 is advanced from left to right, and the water inlet of washing water be from last washing lattice 13 be Fig. 3 low order end one by one the through hole 14 respectively washed on the lattice 13 of ground warp flow left, until flowing to first lattice, be to flow out (being illustrated by arrow) behind one of the high order end washing lattice 13 among Fig. 3, turbid back clearly before embodying by this again.The jet body that makes of 15 pairs of moistening bodies of jet thrust by the qi of chong channel ascending adversely device in the water-washing process is fully expanded, in order to obtaining excellent washing effect.The air that jet thrust 15 is sprayed draws past by pipeline, pipeline be connected such as air blast, the reason of aforesaid gas filled head 4 is as the same.The washing coolant-temperature gage generally is controlled at about 25 ℃, if need to adopt Warm Wash to be that the washing lattice 13 logical vapour of low order end heat then cleaning performance can further improve at first, specifically is to introduce steam by the admission opening on the washing lattice 13 16.Open washing generally is to adopt 10～15 lattice circulating waters, require the body pH value for neutral after the washing, quilts such as the chemical reaction product of cotton fiber commensal and knitting finish and treatment fluid fully emulsification are dissolved in the water and venting, cloth cover requires: bright and clean soft naturally, the whiteness of cloth cover evenly, clean cleaning, superior permeability, natural airing is measured capillary effect after the washing: greater than 8cm/30min.
Treatment fluid of the present invention is that the prescription of cold rolling liquid is that following three kinds of auxiliary agents configuration forms:
H
2O
2(27.5％) 30～80g/l
Cold 15～the 20g/l that helps
Cold strong 4～5g/l
Hydrogen peroxide generally all carries out oxidation Decomposition to the pigment on the cotton fiber as the bleaching agent of routine under alkaline hot conditions, it decomposes discoloration also Shaoxing opera is strong hydrogen peroxide along with the raising of pH value and temperature, to also relative shortening action time of pigment and impurity.Learn according to interrelated data introduction and concrete production experience, hydrogen peroxide is as under alkali (PH=10～11) condition, when temperature is room temperature, its bleaching time will be delayed to 20 hours in 1 hour from heating bath (95～100 ℃), based on this principle, the cold dome selection of time of hydrogen peroxide cold-pad-batch preparation was advisable at 18～24 hours, and the hydrogen peroxide behind cold dome is measured, and its resolution ratio can reach about 80～90%.
As everyone knows, in the bleaching process of cotton fiber, hydrogen peroxide has the effect of removing the cellulose commensal concurrently, therefore normally, in hydrogen peroxide Cold Pad-Batch Pretreatment technical recipe, as long as adjust the best bleaching PH (10.5～11) of hydrogen peroxide, this moment, the consumption of caustic soda only needed about 2g/l, but in actual cold-pad batch pretreatment prescription, the great majority prescription has all adopted the high concentration caustic soda, and (caustic soda is 40～50g/l), this mainly is because depend merely on the impurity elimination effect of hydrogen peroxide the cotton wax emulsification on the fabric is disperseed, the saponification hydrolysis of pectin and grease and the hydrolysis of nitrogenous thing can not fully effectively be finished, thereby are difficult to remove from fabric.And by theory and practice understanding, above-mentioned impurity elimination effect generally can cheapness solve apace by adding high concentrated caustic.But inevitably cause so again and contain a large amount of caustic soda in the pre-treatment waste liquid.In addition because the oxygenolysis of hydrogen peroxide raises along with PH and accelerates, as in cold-pad-batch preparation liquid, adding high concentrated caustic, will certainly influence the stability of hydrogen peroxide, thereby cause the instability of padding liquid, cause hydrogen peroxide to decompose and the generation breakage fast even at the local of cloth cover, not only bad for the front and back stable and consistent of product quality, and differ and on dyeing product, show as aberration showing as whiteness on the bleach product.Therefore, what adopt in the cold-pad batch pretreatment prescription of the present invention is the hydrogen peroxide cold-pad-batch process, and it is equipped with digesting agent and concise bleeding agent, promptly cold the group with cold strong, thereby both can reach effect, and can make the use of cold dome padding liquid safety and stability again cotton fabrics kiering and bleaching.
Help as the cold of digesting agent, in the hydrogen peroxide cold-pad-batch process, the quality of scouring agent will determine product quality, especially these indexs of capillary effect and impurity-eliminating effect.According to the interrelated data introduction, in Cold Pad-Batch Pretreatment prescription commonly used, because digesting agent is selected difference for use, can make capillary effect produce difference between 0～8cm, the digesting agent that technology of the present invention is taked be one contain multiple organic, inorganic chemistry composition and be equipped with the complex of special efficient stable agent, main component is: 30 parts in NaOH, 20 parts in potassium hydroxide, 10 parts in sodium carbonate, 10 parts of sodium metasilicate, as 30 parts of the neopelexes of surfactant, it not only has very good emulsification, saponification, disperse, effects such as hydrolysis, and also have good stabilized hydrogen peroxide function.Because it has certain alkalescence, not only can satisfy the commensal on the cotton fiber and the chemical scission of link hydrolysis of spinning sizing agent separates, and can satisfy the best decomposed P H of hydrogen peroxide value fully, not only make the whiteness of product and impurity-eliminating effect reach fully to produce required, and technical recipe is simplified greatly, production and execute-in-place management are greatly easy.
As the cold of concise bleeding agent is by force a kind of high-efficient penetrant of alkaline-resisting antioxidant, be formulated by efficient surfactant, specifically: 70 parts of dodecyl sodium sulfates, 30 parts of fatty alcohol-ether sodium sulfates, in cold rolling liquid, can make at once as digesting agent cold and help to wait the space that is penetrated into fabric and fibrous inside 5～10 seconds complete wetting as long as add 4～5g/l (adding 4-5g in every liter of cold rolling liquid), for padding the condition created at a high speed, help to improve production capacity; Secondly it is as the emulsifying agent scouring agent of excellence, can be under cryogenic conditions be dispersed in the solution by the emulsification stably of the product of digesting agent chemical breakdown on fabric, even under the cold wash condition, also can will be decomposed or dissolve effectively and fully flush away of the impurity that but also is attached on the fabric during washing behind cold dome, the capillary effect of handling the back semi-products is reached more than 7～8cm/30min, can reach dyeing of road, back or stamp the requirement totally and uniformly of pre-treatment cloth cover effect.
Connect and compose flat wash trough on the whole by the washing lattice 13 of 10～15 lattice, be provided with between the lattice dative and roll a little, former lattice bottom is provided with the admission opening 16 that is used to feed steam, can select to add hot water wash according to arts demand, in order to ensure washing effect and reduce water consumption, adopting single-frame flows backwards forms the clear water-washing method in preceding turbid back in addition.
Plaiting apparatus is toward rereeling open width cropping, makes in good order being folded in of cloth be convenient to next process in the cloth car 9 and go into cylinder processing.
(grey cloth uses the general yarn single jersey of 32S/2 to embodiment 1: 1000kg)
Earlier grey cloth 1 is ready to the connection of drum butt joint flush joint, presses 27.5%H simultaneously
2O
250g/, cold 20g/l, the cold strong 5g/l preparation treatment fluid 3 helped.Treatment fluid 3 preparations need to carry out in the change charging basket of special equipment, the steps include: earlier in 70% the water with the cold about total amount of helping to pour into slowly continuous stirring of 25kg, adding cold strong 6.25kg dissolving after treating to dissolve fully again stirs evenly, just allocate in the treatment fluid 3 62.5kg hydrogen peroxide etc. face with preceding, join sufficient surplus water (total amount: 1250L) stand-by at last.With the treatment fluid for preparing 3 add pad the slot standard water level after, open padding machine, drive grey cloths 1 impregnation process liquid 3 by fabric guide roll 6, make it fully expand the blow-up expansion by 4 pairs of wetting body qi of chong channel ascending adversely of gas filled head of padding the subsidiary qi of chong channel ascending adversely mechanism of groove 2 simultaneously.The speed of control fabric guide roll 6 is at 38m/min, and the infiltrating time in 25 ℃ treatment fluids 3 is 6s, opens charging replenishment valve control liquid level substantially constant simultaneously.Handle cloth through wetting roll even (pick-up is 125%) after by in the cloth car 9 that packages the sealed plastic film bag in advance or behind the cropping, again the sealed plastic film bag being placed on the cloth car 9 toward rereeling open width cropping mechanism 8 croppings, the plastics sack is tightened prevented the moisture loss of leaking gas at last;
The cloth heap that will pad treatment fluid 3 pushes the district of banking up, and temperature is controlled at 25 ℃, and this zone requires to keep certain humidity with relative airtight, and tangible strong convection wind can not be arranged.Accomplish as far as possible environment temperature in the temperature difference of body temperature in 5 ℃ of scopes, banked up 18 hours;
Cloth heap after banking up 18 hours can be washed, and cleans according to the sequencing that pads, and is undertaken by continuous open soaper 10, and washing temperature generally gets final product at 25～35 ℃.Washing lattice 13 are got 15 lattice, adopt circulating water before the clear mode in turbid back carry out, in water-washing process,, measure body pH value and remaining hydrogen peroxide content at last and just can go out cloth and wait to dye by 15 pairs of body qi of chong channel ascending adversely expansions of jet thrust of the subsidiary qi of chong channel ascending adversely device of continuous open soaper 10.
(grey cloth uses the textile single jersey of 18tex to embodiment 2: 950kg)
Earlier grey cloth 1 is ready to the connection of drum butt joint flush joint, presses 27.5%H simultaneously
2O
280g/l, cold 20g/l, the cold strong 5g/l preparation treatment fluid 3 helped.Treatment fluid 3 preparations need to carry out in the change charging basket of special equipment, the steps include: earlier in 70% the water with the cold about total amount of helping to pour into slowly continuous stirring of 25kg, adding cold strong 6.25kg dissolving after treating to dissolve fully again stirs evenly, 100kg hydrogen peroxide etc. faces with preceding just to be allocated in the treatment fluid 3, joins sufficient surplus water (total amount: 1250L) stand-by at last.With the treatment fluid for preparing 3 add pad the slot standard water level after, open padding machine, drive grey cloths 1 impregnation process liquid 3 by guide-car's roller 6, make it fully expand the blow-up expansion by 4 pairs of wetting body qi of chong channel ascending adversely of gas filled head of padding the subsidiary qi of chong channel ascending adversely mechanism of groove 2 simultaneously.The control speed of a motor vehicle is at 32m/min, and the infiltrating time in 30 ℃ treatment fluids 3 is 5s, opens charging replenishment valve control liquid level substantially constant simultaneously.Handle cloth through wetting roll even (pick-up is 130%) after by toward rereeling open width cropping mechanism 8 croppings in the cloth car 9 that packages the sealed plastic film bag in advance, the plastics sack is tightened prevented the moisture loss of leaking gas at last;
The cloth heap that will pad treatment fluid 3 pushes the district of banking up, and temperature is controlled at 22 ℃, and this zone requires to keep certain humidity with relative airtight, and tangible strong convection wind can not be arranged.Accomplish as far as possible environment temperature in the temperature difference of body temperature in 5 ℃ of scopes, the time of banking up was at 22 hours;
Cloth heap after banking up 22 hours can be washed, and cleans according to the sequencing that pads, and is undertaken by continuous open soaper 10, and washing temperature generally gets final product at 25～35 ℃.Washing lattice 13 are got 13 lattice, the clear mode in turbid back is carried out before adopting circulating water, in water-washing process, expand by 15 pairs of body qi of chong channel ascending adversely of jet thrust, can introduce steam by admission opening 16 as required in the water-washing process, the washing coolant-temperature gage is guaranteed at 25-35 ℃, measured body pH value and remaining hydrogen peroxide content at last and just can go out cloth drying and wait to dye.
(grey cloth uses T/C 55/45 cloth to embodiment 3: 1350kg)
Earlier grey cloth 1 is ready to the connection of drum butt joint flush joint, presses 27.5%H simultaneously
2O
230g/l, cold 15g/l, the cold strong 4g/l preparation treatment fluid 3 helped.Treatment fluid 3 preparations need to carry out in the change charging basket of special equipment.The steps include: earlier in 70% the water with the cold about total amount of helping to pour into slowly continuous stirring of 24.75kg, adding cold strong 6.6kg dissolving after treating to dissolve fully again stirs evenly, just allocate in the treatment fluid 3 49.5kg hydrogen peroxide etc. face with preceding, join sufficient surplus water (total amount: 1650L) stand-by at last.With the treatment fluid for preparing 3 add pad groove 2 normal water levels after, open padding machine, drive grey cloths 1 impregnation process liquid 3 by fabric guide roll 6, make it fully expand the blow-up expansion by 4 pairs of wetting body qi of chong channel ascending adversely of gas filled head of padding qi of chong channel ascending adversely mechanism subsidiary on the groove 2 simultaneously.The control speed of a motor vehicle is at 51m/min, and the infiltrating time in 35 ℃ treatment fluids 3 is 8s, opens charging replenishment valve control liquid level substantially constant simultaneously.Handle cloth through wetting roll even (pick-up is 135%) after by toward rereeling open width cropping mechanism 8 croppings in the cloth car 9 that packages the sealed plastic film bag in advance, the plastics sack is tightened prevented the moisture loss of leaking gas at last;
The cloth heap that will pad treatment fluid 3 pushes the district of banking up, and temperature is controlled at 20 ℃, and this zone requires to keep certain humidity with relative airtight, and tangible strong convection wind can not be arranged.Accomplish as far as possible environment temperature in the temperature difference of body temperature in 5 ℃ of scopes, the time of banking up was at 24 hours;
Cloth heap after banking up 24 hours is promptly washed, and cleans according to the sequencing that pads, and is undertaken by continuous open soaper 10, and washing temperature generally gets final product at 25～35 ℃.The washing lattice 13 of open soaper 10 are got 10 lattice continuously, the clear mode in turbid back is carried out before adopting circulating water, in water-washing process, aim at body qi of chong channel ascending adversely expansion by jet thrust 15, can be in the water-washing process according to needing to introduce steam by admission opening 16, the washing coolant-temperature gage is guaranteed at 25-35 ℃, measured body pH value and remaining hydrogen peroxide content at last and just can go out cloth and wait to dye.
(grey cloth uses the blended knitted cloth of cotton/spandex (5%) to embodiment 4: 900kg)
Earlier grey cloth 1 is ready to the connection of drum butt joint flush joint, presses 27.5%H simultaneously
2O
250g/l, cold 18g/l, the cold strong 5g/l preparation treatment fluid 3 helped.Treatment fluid 3 preparations need to carry out in the change charging basket of special equipment.The steps include: earlier in 70% the water with the cold about total amount of helping to pour into slowly continuous stirring of 22.5kg, adding cold strong 6.25kg dissolving after treating to dissolve fully again stirs evenly, just allocate in the treatment fluid 3 62.5kg hydrogen peroxide etc. face with preceding, join sufficient surplus water (total amount: 1250L) stand-by at last.With the treatment fluid for preparing 3 add pad the slot standard water level after, open padding machine, drive grey cloth 1 impregnation process liquid 3 by fabric guide roll 6, infiltrating time is 10s in 32 ℃ treatment fluids 3, makes it fully expand the blow-up expansion by 4 pairs of wetting body qi of chong channel ascending adversely of gas filled head of padding qi of chong channel ascending adversely mechanism subsidiary on the groove 2 simultaneously.The control speed of a motor vehicle is opened charging replenishment valve control liquid level substantially constant simultaneously at 60m/min.Handle cloth through wetting roll even (pick-up is 140%) after by toward rereeling open width cropping mechanism 8 croppings in the cloth car 9 that packages the sealed plastic film bag in advance, the plastics sack is tightened prevented the moisture loss of leaking gas at last;
The cloth heap that will pad treatment fluid 3 pushes the district of banking up, and temperature is controlled at 24 ℃, and this zone requires to keep certain humidity with relative airtight, and tangible strong convection wind can not be arranged.Accomplish as far as possible environment temperature in the temperature difference of body temperature in 5 ℃ of scopes, the time of banking up was at 20 hours;
Cloth heap after banking up 20 hours can be washed, and cleans according to the sequencing that pads, and is undertaken by continuous open soaper 10, and washing temperature generally gets final product at 25～35 ℃.The washing lattice 13 of open soaper 10 are got 15 lattice continuously, the clear mode in turbid back is carried out before adopting circulating water, expand by 15 pairs of body qi of chong channel ascending adversely of jet thrust in the water-washing process, can introduce steam by admission opening 16 as required in the water-washing process, the washing coolant-temperature gage is guaranteed at 25-35 ℃, measured body pH value and remaining hydrogen peroxide content at last and just can go out cloth and wait to dye.
(grey cloth uses the textile single jersey of 18tex to comparative example 1: 200kg)
Alkaline oxygen bath moves back and boils that to float heat treating process be that alkali oxygen is bathed method, and its pre-treatment process flow process is as follows: the cloth of intaking → advance → adding caustic soda, auxiliary agent, hydrogen peroxide etc. → be warming up to more than 95 ℃ (are incubated 60 fens) → discharge opeing → water inlet → hot water wash → pickling neutralization → cold wash → discharge opeing.Technology preparation is: contain caustic soda 5g in every liter of cold rolling liquid, 27.5% hydrogen peroxide 8ml, scouring agent 2g, stabilizing agent 4g, chelating agent 1g; Bath raio 1: 15.
(grey cloth uses the textile single jersey of 18tex to comparative example 2: 200kg)
High temperature and high pressure method, its pre-treatment process flow process: the cloth of intaking → advance → adding caustic soda, auxiliary agent, hydrogen peroxide etc. → pressurization is warming up to 120 ℃ of (being incubated 30 fens) → steam discharge discharge opeing → water inlet → hot water wash → pickling neutralization → cold wash → discharge opeings.Technology preparation is: contain caustic soda 5g in every liter of cold rolling liquid, 27.5% dioxygen 8ml, stabilizing agent 4g, scouring agent 2g; Bath raio 1: 15.
Technology of the present invention is compared with high temperature and high pressure method technology with traditional alkali oxygen bath process, and water, electricity, vapour, loss, whiteness, capillary effect, weightlessness, same procedure dyeing back COLOR FASTNESS data such as (behind color-fixing agent of the same race) are by (COLOR FASTNESS in the table is for dying back fixation data shown in the following table; Consume steam, water, electricity, fabric loss for calculating by cloth per ton):
| The contrast content | Comparative example 1 | Comparative example 2 | Technology of the present invention | ||||||||||
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | ||||||||||
| Pre-treatment | Whiteness | 81 | 85 | 85 | 85 | 84 | 85 | ||||||
| Washing back capillary effect cm/30min | 8 | 10 | 12 | 12 | 11 | 12 | |||||||
| Fabric loss (kg)/ton cloth | 50 | 120 | 30 | 30 | 30 | 30 | |||||||
| Consume steam (m 3)/ton cloth | 6.5 | 7.3 | 0.03 | 0.03 | 0.03 | 0.03 | |||||||
| Consume water (ton)/ton cloth | 45 | 40 | 15 | 15 | 15 | 15 | |||||||
| Power consumption (degree)/ton cloth | 100 | 120 | 22 | 22 | 22 | 22 | |||||||
| Dyeing back sample | Color code (after the fixation) | Bright red | Black | Bright red | Black | Bright red | Black | Bright red | Black | Bright red | Black | Bright red | Black |
| Former state is faded | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | |
| Calico staining (level) | 3.5 | 4 | 3.5 | 4 | 3.5 | 4 | 3.5 | 4 | 3.5 | 4 | 3.5 | 4 | |
| The unlubricated friction fastness | 3.5 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | |
| The wet fastness of rubbing | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | |
Claims (10)
1, a kind of pretreatment technology of cotton knitted fabric cold rolling stack, it may further comprise the steps: open-Width Continuous is padded, bank up, the open-Width Continuous washing, it is characterized in that it is earlier grey cloth (1) flush joint to be connected that described open-Width Continuous is padded, what keep the double-deck open width of its drum braiding shape to immerse continuously filling treatment fluid (3) pads groove (2) impregnation process, the dip time of control treatment fluid (3) the gentle grey cloth of liquid (1) and the gait of march of grey cloth (1), the dipping in to grey cloth (1) qi of chong channel ascending adversely, make the body expansion, grey cloth (1) roll compacting of the intact treatment fluid (3) of the dipping when going out to pad groove (2) is also controlled pick-up, and the grey cloth after the roll compacting (1) is fallen into cloth car (9); Described banking up is that cropping and the grey cloth (1) that is piled up in the cloth car (9) are in abundant sealing state, and bank up temperature and banking up the time of control; The washing of described open-Width Continuous be to the circulating water of the continuous open soaper (10) that is used to wash take single-frame to flow backwards, the clear mobile water-washing method in preceding turbid back washes grey cloth (1), in water-washing process to body qi of chong channel ascending adversely expansion, and control washing coolant-temperature gage.
2, a kind of pretreatment technology of cotton knitted fabric cold rolling stack according to claim 1 is characterized in that consisting of of described treatment fluid (3): H
2O
2(27.5%) 30～80g/l, cold 15～20g/l, the cold strong 4～5g/l of helping.
3, a kind of pretreatment technology of cotton knitted fabric cold rolling stack according to claim 2 is characterized in that described cold consisting of of helping: 3 parts in NaOH, 2 parts in potassium hydroxide, 10 parts in sodium carbonate, 10 parts of sodium metasilicate, 30 parts of neopelexes.
4, a kind of pretreatment technology of cotton knitted fabric cold rolling stack according to claim 2 is characterized in that described cold strong consisting of: 70 parts of dodecyl sodium sulfates, 30 parts of fatty alcohol-ether sodium sulfates.
5, a kind of pretreatment technology of cotton knitted fabric cold rolling stack according to claim 1, the time that it is characterized in that described impregnation process is 5-10 second, and treatment fluid liquid temperature is 25-35 ℃, and grey cloth (1) gait of march is 30-60m/min.
6, a kind of pretreatment technology of cotton knitted fabric cold rolling stack according to claim 1 is characterized in that described qi of chong channel ascending adversely is to adopt to pad the incidental qi of chong channel ascending adversely of groove (2) mechanism and aim at grey cloth (1) and blow to body.
7, a kind of pretreatment technology of cotton knitted fabric cold rolling stack according to claim 1 is characterized in that described pick-up is 120-150%.
8, a kind of pretreatment technology of cotton knitted fabric cold rolling stack according to claim 1 is characterized in that the described temperature of banking up is that 20-25 ℃, the time of banking up are 18-24h.
9, a kind of pretreatment technology of cotton knitted fabric cold rolling stack according to claim 1, the mobile water-washing method of it is characterized in that describedly single-frame flowing backwards, preceding turbid back is clear for the washing water in all the washing lattice (13) of continuous open soaper (10) by after flow forward.
10, a kind of pretreatment technology of cotton knitted fabric cold rolling stack according to claim 1 is characterized in that described is to adopt the qi of chong channel ascending adversely device on the continuous open soaper (10) to make it fully expand the blow-up expansion to wetting body qi of chong channel ascending adversely to body qi of chong channel ascending adversely expansion.
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