Classifications

• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
  • D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
  • D06B1/02—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by spraying or projecting
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
  • D06B7/00—Mercerising, e.g. lustring by mercerising
  • D06B7/04—Mercerising, e.g. lustring by mercerising of yarns, threads or filaments
  • D06B7/06—Mercerising, e.g. lustring by mercerising of yarns, threads or filaments of hanks of yarns

Definitions

• the present invention relates to a method for mercerizing cellulose fibers and a mercerizing device thereof, and more particularly to a method for processing a sliver of a sliver and a mercerizing device thereof.
• Mercerized means that the yarn or sliver gives a certain tensile tension under the action of concentrated alkali to cause irreversible swelling, so that the cross section of the fiber has an oblate shape and a circular shape, and the degree of orientation is improved, so that after the mercerizing
• the fabric or yarn strength is improved, the surface is glossy, and the color yield and fabric dimensional stability are improved. Since the sliver does not have its own strength after the machine is lowered, it is only formed by the mutual arrangement of the fibers, so that the stranding and skeining can not be used, so that the sliver can not be effectively mercerized.
• the tampon is used for twisting or several tampons are twisted to each other to form a rope and then mercerized, and then untwisted, torn into cotton fibers and then spun.
• the method can carry out the mercerizing of the sliver, but has the following major defects: 1.
• the twisting of the sliver makes the originally arranged cotton fiber return to the state of chaotic yarn, and the method of mixing cotton and combing can be carried out again. The loss is doubled, the spinning cost is greatly increased, and the difficulty of carding is greatly increased by the twisting of the sliver. 2.
• the present invention provides a method for producing mercerized cellulose fibers and a mercerizing device thereof, which adopts a sliver to increase the strength of the wet, and concentrates the spray and instantaneously extrudes the effective sliver of the sliver, and always controls the sliver on the sliver. With the amount of alkali, it will not melt the sliver and cause it to melt, which solves the problem that the sliver can't be mercerized in the state of no twist.
• the mercerized sliver has bright luster, fluffy feel, and the dyeing color is increased by 20% ⁇ 30. %.
• the present invention provides the following technical solution - a method for producing sliver mercerizing, the method is as follows: a. sliver pretreatment: the sliver is wetted and dehydrated or squeezed, To produce a wet sliver with a certain liquid-bearing rate, which can be carded or combed before being wetted; b. a ratter: the wet sliver is shaken on a shaker and the sliver is Fixing is fixed by tie wire; c. Coat: Wrap the stranded cotton sliver with a cloth to make the sliver and the cloth as a whole; d. Mercerizing: using concentrated spraying and instant extrusion Mercerized.
• Concentrated spray means that the lye is concentrated on the tampon through the holes in the pipe, and the other parts are not in contact with the alkali. Liquid, thereby reducing the dissolution of the non-reactive portion of the sliver.
• Instant squeezing means that the sliver is squeezed out by the squeezing roller immediately after spraying the alkali to instantly reduce the liquid carrying rate on the sliver, thereby reducing the dissolution and breakage of the sliver.
• the non-reactive portion means a portion where the sliver is not swollen with alkali and causes swelling and alkali shrinkage.
• the roller while the alkali spray pipe is continuously spraying the alkali on the sliver, the roller only rotates counterclockwise, ensuring that the sliver is squeezed into the interior immediately after being wetted by the alkali, so that the inner and outer layers of the sliver are dipped.
• the alkali is consistent, and at the same time, the alkali amount of the sliver is reduced at the fastest time, and the alkali shrinkage of the surface cotton fiber is reduced.
• the conventional yarn mercerizing machine immerses the yarn in half in the alkali, and then performs the effect of positive and negative soaking, alkalizing and stretching to achieve mercerizing through the roller, which is not suitable for cotton fiber mercerizing, because there are too many alkali soaking parts. And too long will dissolve the sliver.
• the wetting refers to: soaking the sliver in water or an aqueous solution containing the penetrant LFD-30 to sufficiently wet it.
• the liquid carrying rate after dehydration or water squeezing is 50 to 60%.
• the wetting is beneficial to increase the tension of the sliver, and it can be twisted without breaking by means of high-speed shaking, which solves the problem that the strength of the single sliver is poor and cannot be shaken.
• the liquid carrying rate refers to the percentage of the weight of the liquid carried on the sliver as a percentage of the total weight of the sliver.
• step b the twisting weight of the sliver is controlled to have a dry weight of 250 to 1000 g and a frame length of 120 to 140 cm.
• the material used for the wrapping is a chemical fiber material, preferably polyester cloth or nylon, and the weaving method is a woven or knitted structure, and the tensile length that can be withstood is controlled within 3%, and the circumference of the sewing is The length of the frame is the same, and the spreading length is 3 times the width of the twisted sliver.
• the package is "one fold inside, two fold outside.”
• step d the mercerized alkali is concentrated at 26 to 30 Baume, the mercerizing time is 120 to 180 s, the stretching length of the two rollers is controlled at 0.5 to 3%, and the pressure of the squeezing roller is 1.5 to 1. 3.0 kg, hot water wash temperature is 70 ⁇ 80 ⁇ , hot water wash time is 40 ⁇ 60s, cold water wash time is 20 ⁇ 40s.
• the cold water refers to liquid water which is not subjected to any temperature rise or temperature drop treatment at normal temperature.
• the mercerizing device used in the mercerizing method includes a pressing roller 1 , a stretching roller 2 , a spray alkali pipe and a water spray pipe, and the pressing roller is located above the side of any one of the stretching rollers, and pulls The rotation direction of the stretching roller is opposite; the alkali spraying port is provided at one end of the spraying alkali pipe, the alkali spraying port is located at the pressing end of the mercerizing material at the boundary between the pressing roller and the stretching roller, and the other end is connected with the alkali tank; There is a spout, the spout is adjacent to the mercerized material, and the other end is connected to the sink.
• the two rollers are responsible for fixing and stretching the stranded mercerized material, and can only rotate counterclockwise to achieve the purpose of instantaneous alkali extrusion, which can reduce the amount of alkali of the mercerized material, thereby reducing shrinkage and fracture, such as no tension.
• an alkali disk and a water tray which are alternately stretched and alternately located under the stretching roller, which can be realized by an existing control system, and will not be described again.
• the alkali tray is connected to the alkali tank, and the alkali tank is connected to the automatic alkali system.
• the caustic disk is ejected when the alkali is squeezed, and the water tray is retracted. The opposite is true when washing.
• the lye after the alkali is returned to the alkali tank through the pipe under the alkali disk, and then adjusted to the desired alkali concentration by the automatic alkali system, and reused.
• the spray caustic port and the water spray port are respectively connected to the spray alkali pipe and the spray pipe through the movable interface.
• Set two to have active connections The alkali spray port of the mouth can concentrate the alkali spray on the mercerizing material during the mercerizing process.
• the active spray interface ensures that the roller is in contact with the alkali tube and provides lye for the mercerizing spray when it is lowered. When the roller is erected, the movable interface is separated from the alkali tube.
• the present invention has the following advantages:
• the sliver is shaken by adding strength to the wet, the operation is simple, the cost is low, and convenient; 2.
• the way of adding the sliver of the sliver is changed, and the mercerizing method of concentrated spraying and instantaneous pressing is adopted, thereby reducing the twisting, The cumbersome retreat, the forming of the sliver before and after the sliver can be maintained, and the spinning can be directly carried out after drying to improve the spinning efficiency by 30%.
• the cotton strip is fixed by the cloth to make the sliver and the cloth become a whole. It can apply tensile tension to the untwisted sliver without breaking, and can maximize the gloss of the sliver; 4.
• the sliver weight and the long frame of the sliver ensure the soaking of the sliver when mercerizing , the consistency of alkali extrusion and stretching to ensure the uniformity of mercerization; 5, the sliver wrapped by mercerizing cloth avoids the problem that the alkali shrinking cotton fiber is scattered in the mercerizing machine and causes the pipe to be blocked; 6. After the mercerized cotton Due to the increase of the amorphous zone, the color depth of dyeing is 20% ⁇ 30% higher than that of ordinary cotton fiber . 7. Since the shape of the sliver itself has not changed, the yarn can be directly spun by the drawstring to avoid tearing. Flour The method of reprocessed fiber carding and other processes, and to reduce the difficulty of machining processes, saving time and loss, a 10% time savings, reduced loss of 30%.
• FIG. 1 is a schematic view of the wrapping method of the step d of the method for producing a mercerized sliver according to the present invention, wherein 1 represents a wrapping cloth, 2 represents a sliver; and FIG. 2 is a schematic structural view of the mercerizing device of the present invention;
• Figure 3 is a plan view of the processing apparatus of Figure 1;
• Figure 4 is a front elevational view of the processing apparatus of Figure 1;
• Figure 5 is a left side view of the processing apparatus of Figure 1;
• Figure 2-5 1-squeeze roll, 2-active squeeze roll (stretching roller), spray nozzle No. 3-1, 4-passive squeeze roll (stretching roller), 5-1 spray Tube, 6-2 spray alkali pipe, 7-2 spray pipe, 8-alkali plate, 9-water pan, a-1 spray port, b-2 spray port, c-l spray Mouth, d-2 spout.
• the mercerizing mercerizing device of the tampon of the present invention comprises a pressing roller 1, two stretching rollers (active pressing roller 2 and passive pressing roller 4, respectively), and a spray pipe. (No. 1 spray alkali pipe 5, No. 2 spray pipe 6) and water spray pipe (No. 1 sprinkler pipe 3 and No. 2 sprinkler pipe 7 respectively), alkali disk 8 and water pan 9.
• the squeezing roller 1 is located at the upper left side of the left stretching roller and rotates clockwise; the two stretching rollers rotate counterclockwise.
• the pressing roller is controlled by a pneumatic system, and the pressure is 1.0 to 5.0, which can ensure that the surface of the mercerized material is not damaged by friction under the premise of sufficient alkali.
• the erect and fall of the roller are controlled by oil pressure.
• One end of the spray alkali pipe is provided with two spray alkali ports, the spray alkali port and the spray alkali pipe are connected through the movable interface, and the spray alkali port is located at the press-in end of the mercerized material at the junction of the squeeze roller and the stretch roller, and the other end It is connected with the alkali tank; the alkali spray cooling system (not shown) is also arranged on the spray pipe, and the temperature of the alkali liquid is controlled at 18 ⁇ 20 °C.
• the spout is adjacent to the mercerized material, and the other end is connected to the sink.
• the spray nozzle is a tubular structure, the number of perforations on each of the holes is 50, and the diameter of the perforations is 2 mm; the spout is also a tubular structure with 40 perforations per hole and a diameter of 1.5 mm.
• the two rollers are responsible for fixing and stretching the twisted mercerized material, and can only perform counterclockwise rotation to achieve the purpose of instantaneous alkali extrusion, thereby reducing the amount of alkali of the mercerized material, thereby reducing shrinkage and breakage.
• a tensionless sliver For example, a tensionless sliver.
• Two spray ports with a movable interface are provided to concentrate the alkalinity on the mercerizing material during the mercerizing process.
• the active spray interface ensures that the roller is in the process of falling down (oil pressure control), is in line with the alkali pipe and provides lye for the wire spray, and when the roller is erected, the movable interface is separated from the alkali pipe.
• an alkali disk and a water tray which are alternately stretched and are alternately positioned under the stretching roller.
• the alkali disk is ejected when the alkali is squeezed, and the water tray is retracted, and the water washing is reversed.
• the lye after the alkali is returned to the alkali tank through the pipe under the alkali disk, and then adjusted to the desired alkali concentration by the automatic alkali system, and reused.
• a method for producing a 60S/1 mercerized sliver comprising the following processing steps:
• Pretreatment of sliver Weigh the sliver 250g, immerse it in water and apply pressure to fully wet the sliver, then put the sliver into the dehydrator to dehydrate, so that the slug rate of the sliver is controlled at 50%; 2, the cashmere: the wet cotton sliver is twisted into 250g on the shaker, the frame length is 120cm; 3, cloth: wrapped in a polyester woven fabric, the width of the cloth is 120cm, the unfolding length is 57cm, as shown in Figure 1 (1 is the cloth in the figure, 2 is the twisted sliver), the bottom layer is used, and the upper layer is wrapped in two layers; 4.
• Mercer On the above skein mercerizing machine The mercerizing is carried out by means of concentrated alkali spraying and instantaneous extrusion, wherein the alkali concentration is 26 Baume, the alkali spraying time is 120s, the stretching length is 3%, the pressing roller pressure is 3.0 kg, and the hot water washing is 70 °C. The time is 40s and the cold wash time is 40s.
• washing with hot water retract the alkali disc, extend the water tray, rotate the roller counterclockwise, spray hot water on the water pipe, water temperature 70.
• C washing time 70s; 6, cold water washing, roller counterclockwise rotation, water pipe spray, water washing time 40s; 7, squeeze water, roller counterclockwise rotation, squeeze water for 20s; 8, roller shrink to 120cin, squeeze roller and roller Separate, the roller is upright, and the sliver is removed.
• a method for producing a 70S/1 mercerized sliver comprising the following processing steps:
• Pretreatment of sliver Weigh the sliver 500g, immerse it in water and apply pressure to fully wet the sliver, then put the sliver into the dehydrator to dehydrate, so that the slug rate of the sliver is controlled at 55 %; 2, the cashmere: the wet cotton sliver is twisted into 500g on the shaker, the frame length is 130cm; 3, cloth: wrapped in a polyester woven fabric, the width of the cloth is 130cm, unfolded length is 63cm, one layer is used on the bottom layer, and the upper layer is wrapped in two layers; mercerized: on the improved skein mercerizing machine, the concentrated light is sprayed by alkali spray and instantaneous extrusion, wherein the alkali concentration is 28 Baume.
• the time for spraying alkali and alkali is 140s, the stretching length is 2%, the pressure of the pressing roller is 2.0 kg, the washing with hot water is 75 °C, the time
• a method for producing an 80S/1 mercerized sliver comprising the following processing steps -
• Pretreatment of sliver Weigh the sliver 1000g, immerse it in water and apply pressure to fully wet the sliver, then put the sliver into the dehydrator to dehydrate, so that the slug rate of the sliver is controlled at 60%; 2, the cashmere: the wet cotton sliver is twisted into 1000g on the shaker, the frame length is 140cm; 3, the cloth: wrapped in a polyester woven fabric, wherein the width of the cloth is 140cm, unfolded length is 72cm, using the bottom layer, the upper two layers of wrapping; mercerizing: on the improved skein mercerizing machine using concentrated alkali spraying and instant extrusion for mercerizing, wherein the alkali concentration is 30 Baume, The time for spraying the alkali is 160s, the stretching length is 0.5%, the pressure of the pressing roller is 1.5 kg, the washing with hot water is 8 (TC, the time is 60 s, and the cold washing time is 20 s.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Treatment Of Fiber Materials (AREA)
• Chemical Or Physical Treatment Of Fibers (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=46897259

Family Applications (1)

Country Status (2)

Families Citing this family (7)

Citations (6)

• 2012
  • 2012-01-20 CN CN201210019169.2A patent/CN102704225B/zh not_active Expired - Fee Related
  • 2012-04-11 WO PCT/CN2012/000482 patent/WO2013106967A1/fr not_active Ceased

Patent Citations (6)

Also Published As

Similar Documents

Legal Events