KR100190447B1 - Contraction for polyester hard-twisted yarn fabric and finishing method for relax - Google Patents

Abstract

The present invention relates to a method for shrinking and re-racing a polyester staple fiber using superheated steam and high-pressure hot air,

The polyester fabric is woven or refined in a continuous drawing machine and the fabric is made into a rope in an atmospheric processing machine storage tank to produce a high speed fabric by a superheated steam (wet) and a hot (dry) And the reduction and re-racing work is performed, thereby improving the processing efficiency, thereby increasing the quality and productivity of the fabric and minimizing the generation of wastewater.

In general, fabrics are processed simultaneously in the rotary washer in order to expedite, refine and shrink, and relex. However, in the case of polyester lacquer weave or new lacquer weave, the fiber lining is strong and the shrinking property of the fiber is large and the touch is unique. Since it is necessary to separate the scouring, scouring, shaking and reeling operations, conventionally, the scouring, refining, shrinking and re-racing operations are performed using a rotary washer, a liquid dyeing machine and an air flour dyeing machine. Although the amount of wastewater is large due to the immersion process, various kinds of auxiliary operations are required, and there is a drawback that the operation is dangerous, the process is large, and the quality and productivity are poor

The present invention is a breakthrough invention in the processing of fabrics which satisfies the requirements of polyester woven fabrics or new-woven fabrics by simultaneously applying superheated steam (wet) and hot-air (dry) at the same time, enhancing quality and productivity, and minimizing the amount of wastewater.

Description

Reduction and Rarex Processing Method of Polyester Sewing Resin Using Superheated Steam and High Pressure Hot Air

1 is a longitudinal sectional view of the present invention

FIG. 2 is a circuit diagram showing the supply state of the high-

DESCRIPTION OF REFERENCE NUMERALS

1: fabric storage tank 2: guide

3: winch rollers 4: fabric guide tube

5: blower 6: fabric transferring

7: super heated steam injection nozzle 8: heat exchanger

9: Inflow pipe

The present invention relates to a method for shrinking and reworking polyester staple fibers using superheated steam and high-pressure hot air,

The fabric woven with a polyester lacquer yarn and the new lacquer cloth are reclaimed and refined by a continuous reclaiming machine, the fabric is housed in a processing tank storing tank at room temperature and pressure, and the lacquer is put into a rope state, and superheated steam is sprayed on the fabric, And the reduction and the re-racing work are performed, thereby improving the quality and productivity and minimizing the generation of wastewater by efficiently performing the processing efficiency of the fabric.

In order to effectively weave fabrics of polyester staple yarns and new synthetic fibers, various yarn fabrics, lubricants, and lubricants are set on the fiber yarn, and the yarns are weaved by setting them at a high temperature. After shrinking and re-lexing, the tentering process leads to dyeing.

Most polyester fabrics woven in this manner are shrink and rerex processed at the same time as shrinking and refining, and the polyester jersey is treated at 80 ° C or higher,

The polyester processed yarn is 80 ° C-85 ° C or higher, but it is effective to treat it at 100 ° C or higher if possible.

In addition, shrinkage and re-rex processing tend to result in defects during dyeing operations due to wrinkles or the like if the wrinkles generated during the process are not particularly careful.

Unlike ordinary fabrics, a fabric has a desired concavity and convexity formed by releasing a soft torque applied to a fiber yarn immediately prior to a warp and a refinement, and thereby forming a desired concavo-convex pattern on the fabric.

The cotton and its blends have creeps and whorls, and the silk, polyester, nylon, and synthetic fibers include crude jet, tessin, and pale lace.

In the pretreatment of the polyester laminating yarn, it is important for the dyeing process to be performed, but the irregularity state of the fabric, that is, the degree and condition of the timepiece, and the uniform distribution are important.

In this case, the product to be shipped is different from the above-mentioned polyester and nylon construction products for the purpose of restoration of the crimped state of the pre-twisted fiber yarn by reduction and relexing.

The lacquer yarn utilizes the unevenness of the fabric caused by the contraction of the fiber yarn due to the grain boundary of the fiber yarn, so the reduction and re-racing operations are different from the refining operation.

That is, the degree of the time signal is determined by the recovery rate of the lecture torque to the process causing the time signal, and the state of the time signal is determined by the uniformity of restoration.

Although the shrinkage ratio of the yarn is increased to increase the degree of recovery, the shrinkage rate of the fiber is greatly affected when the thermosetting synthetic fiber occurs.

The torque restoring force when the non-thermoplastic natural fiber timepiece occurs is due to the occurrence of a solidified torque from the fact that the yarn to which the yarn is applied is wetted from the water and expanded.

From the same year, when the degree of plucking becomes large, the degree of occurrence of the time signal becomes strong.

The degree of swelling of water-absorbing fibers by water is 46% for silk, 35% for wool, 30% for cotton, 35-60% for viscose rayon, and 6-9% for acetate.

Depending on the degree of increase in the cross-sectional area due to the swelling, the signal occurs and the number of times of threading is small.

It is possible to strengthen the accuracy of the time signal by the use of the flatness material or the alkali treatment by the mercerizer treatment when the time signal occurs.

In the thermoplastic fiber having no water absorptivity, since there is no generation of a cracking torque due to an increase in the cross-sectional area of the yarn at the time of occurrence of the signal,

For synthetic fibers, the streaks are 2000-3000R / M (twist per 1m), whereas natural fibers have about 1000-2000R / M.

Since the fiber yarn of the product of thermoplastic synthetic fiber is subjected to the upstream of about 2500 R / M, it is impossible to weave in this state. Generally, the PVA and the acrylic type foil are used to set the head and steam, .

If the processing conditions under which the signal is generated are not appropriate, the lecturer sets the column ten times until the dissociated torque becomes sufficiently effective.

The reason why the joint torque is regulated is that the frictional resistance of the contact portion due to the crossing of the light and weft caused by the weaving is fixed, and the loosening is fixed from the loosening preventing member. In order to obtain a uniform and time- It is necessary to sufficiently remove the condition for regulating the seawater and restore the torque.

It is important to thoroughly remove the sizing agent and the weaving sizing agent which are stopped at a temperature lower than the temperature caused by the recovery of the initial torque, and to increase the freedom of the yarn. In order to proceed smoothly, the caustic soda and various activators There is also an increase in the lubrication effect due to the addition of the yarn due to the addition, an increase in the space between the fibers due to the action of reducing the alkali, and the temperature is raised in order to solve the binding force due to the crossing of the yarn due to the physical impact, and a time signal, and to occur in the high pressure of Zou Yan before and after the 120 ℃ higher temperatures above 100 ℃ to increase haeyeon in accordance with the change of the crystal structure of the fiber according to the torque high and 3 ~ 5Kg / cm ^2, the carrier, the fiber lubricant It is added to promote seawater.

In order to prevent the crossing of the yarns, physical shocks are generally used in rotary and sharply. However, it is possible to consider a machine that produces a powerful beating effect on a relexing machine and produces a time signal in succession.

At present, we work on producing the signal from the liquid dyeing machine.

We have developed a continuous relex machine that can continuously reexport in many textile machine manufacturers. However, since there is a limit of temperature and limit of number of beating at normal pressure, general twist weaving can get rerexing effect, but polyester twill weave The time effect of the fabric is difficult.

The conditions in which the time signal actually occurs are not determined by the treatment method and conditions of such a device but are determined depending on the crystal structure of the polyester fiber itself, the thermal stability and the number of years at the time of the continuous processing, .

The processing conditions of the polyester stitches that are generally performed are about 2500R / M for the upper stage and 2-3% owf (ratio based on the weight of the fabric) of the PVA + In about 30-60 minutes.

The heat shrinkage of the polyester fiber yarn used is 5% or less, and the torque recovery rate after steam set is 95% or more.

The conditions under which the signal is generated are as follows: at a temperature of 40 ° C or less using a rotary washer, a continuous arc refiner, or a liquid dyeing machine, caustic soda 1-2% owf, carrier, Minute, 100 ° C for 30 minutes, and the temperature raising method is a process for generating an atmospheric pressure time at 100 ° C for 30 minutes.

In some cases, a high-pressure rotary washer at 120 ° C to 130 ° C for 20 to 30 minutes is used to generate a time warp.

In the case of the resigned material, the expansive, refinement and reduction, and the relexing are carried out in the rotary washer working machine. However, in the case of the polyester stiffness yarn and the new synthetic fiber woven fabric, the shrinking property of the fiber yarn is large and the feel is unique, Since the work of Rex can not be done in one step, it is dilated and refined by a continuous scouring machine, and then it is shrunk and re-worked by using a rotary washer, a liquid dyeing machine, and an air flow dyeing machine.

However, the operation in the liquid dyeing machine or the air flow dyeing machine is performed by floatation of the liquid flow and the air flow to obtain uniform quality and feel, but the productivity is low and the equipment is expensive, so the rotary washer is mainly used.

At this time, the rotary washer is a strong beating applied to the fabric by the rotation of the rotor under high temperature and high pressure at the high temperature and high pressure of the polyester, so that the fabric is shrunk to keep the condition good for the time warping. (5Kg / Cm ² ) state to maintain the water at a high temperature (130 ° C). In addition, there is a drawback that the fabric has a defective portion due to multiple folds on the inner and outer sides due to the reeling operation. In order to carry out the work, it is necessary to carry out the reeling work, the dipping and laundering work, and after completion of the work, the centrifugal dewatering work for removing the moisture contained in the fabric for performing the tenter work of the next step , There are many problems in the wastewater treatment of the wastewater.

Also, Section 1 of the polyester biomass is roughly 60yds (yard)

Weight is 9-18kg, but the fabric tends to be thicker and wider in recent years, so the weight of section 1 may be over 25Kg, and when it is taken out from the rotary and shaggy, it is not dehydrated and it becomes about 60Kg.

The 400kg capacity of rotary and shaggy is 400-600kg, which is put in one time. Since the water is not dehydrated at the time of withdrawal, it is about 1000-1200 Kg, so it is difficult to take out the copper fabric from the machine and load it in the transportation car.

It is necessary to load 20-25 pieces of crops about 60Kg per crop in a flowing state with water flowing, avoiding work with hard labor which requires more than 2 machines to be operated 8 times a day, high.

Rotary and shagging work with the highest turnover rate is a cause of frequent safety accidents due to inefficient operation of the machine because the worker does not sufficiently receive the driving ability and proper safety education of the worker.

Further and rotate the rotor in the machine structure, a large power input and the fabric and a large work door and configured to fetch a high temperature (130 ℃) and because it is a high pressure (5Kg / Cm ²⁾ the container involves the risk of serious accident constant.

In addition, there are demands for equipment such as preparation work, reeling work, forging work, centrifugal dehydrator, and the like.

Rotary washers, which are mainly used for polishing, refining, shrinking and re-lacing, are required to maintain high pressure (5Kg / cm ² ) in order to maintain high temperature (130 ° C) And when the work is completed, the processed fabric is taken out and dewatered. In the process of dehydration, a large amount of wastewater is generated due to the generation of wastewater, but the reduction of wrinkle point due to the occurrence of wrinkles and the lack of re- There has been a drawback that quality is poor.

Accordingly, the present invention relates to a method for fabricating a polyester woven fabric, which comprises the steps of exposing and kneading a polyester woven fabric through a continuous drawing refiner, spraying superheated steam to the fabric at a normal pressure tank, conveying the woven fabric at high speed with hot hot air, To restore the original properties to the tenter work.

The present invention will now be described in detail with reference to the accompanying drawings. A guide 2 and a winch roller 3 are formed inside the entrance of the fabric storage tank 1 and the fabric guide pipe 4 is connected to the blower 5 on the upper side of the winch roller 3, The superheated steam injection nozzle 7 is formed at one end of the cloth inducing unit 4 and the heat exchanger 8 is formed at the inflow portion side of the blower 5 to constitute the heat exchanger 8 And the inflow pipe 9 is connected to the inlet side of the fabric storage tank 1. As shown in Fig.

In the drawings, reference numeral 10 denotes an exhaust pipe, 11 denotes a guide plate, 12 denotes an opening and closing door, and 13 denotes a fabric.

The function and effect of the present invention will be described as follows.

A polyester ladle yarn fabric or a new synthetic fiber fabric woven into a ladle yarn is extruded and refined in various kinds of oil and contaminants in a filament yarn of a fiber yarn in an extruding machine and then the fabric is wound on the fabric 13 ), The ends of the fabric are connected to each other to form a rope state, and then superheated steam having a temperature of 150 ° C is injected into the fabric 13 through the superheated steam injection nozzle 7, the high temperature steam is injected into the fabric, The air of high temperature (150 DEG C) injected from the fabric inlet tank 5 is jetted from the outside of the fabric guide pipe 4 so that the fabric 13 is fed at a high speed from the fabric feed pipe 6, (11) so that a reduction and a relexing operation are performed. More specifically, the fabric 13 is sprayed with superheated steam through the superheated steam injection nozzle 7 in the fabric induction pipe 4 located at the inlet side of the fabric storage tank 1, (150 ° C) in the blower 5 is discharged from the outer periphery of the fabric guide pipe 4 to the high pressure (at a high temperature of 150 ° C), while the fabric is primarily shrunk and re- The hot air in the dry state transfers the fabric 13 at a high speed so that the fabric passes through the feed pipe 6 and falls on the guide plate 11 on the inner wall of the fabric storage tank 1, Car reduction and relexing are done.

In this case, depending on the degree of laminating of the kind fiber of the fabric, the blowing pressure of the superheated steam injection nozzle 7 and the air pressure of the hot air injected through the blower 5 and the air temperature of the heat exchanger 8 are adjusted Thereby reducing the size of the fabric and adjusting the state of the relexing work.

Further, the air in the fabric storage tank 1 is purified and introduced into the heat exchanger 8 to raise the temperature of the air, and the air is blown through the blower 5 to lead to environmental conditions suitable for shrinking and racing,

In addition, since the fabric 13 is not eroded by the water, the weight is light and the high-speed feeding is performed, the tension is not strong, and the high speed operation is possible, and the processing time is shortened, so that the productivity can be maximized.

In addition, since the present invention performs shrinking and re-racing at the same time by wet and dry processes, it is not required to supply chemicals or water such as scrap for raising shrinkage and re-racing effect, and the inside of the fabric storage tank 1 is operated at normal pressure It is safer and more effective than working under high temperature and high pressure.

In the process of the present invention as described above, the wet and dry rerexing yarns are combined with beating and impact to keep the conditions favorable for the occurrence of the yarn, and the creams (wrinkles) of the yarns and the warp yarns Is reduced to 5 to 30% due to the surface change, the density of the fabric becomes dense, the thickness of the fabric becomes thicker, and the unit weight is increased. In comparison with the conventional work of reducing and re- The effect of relexing can be increased.

When the present invention is connected to the operation of the continuous desulfurizer

Since the work such as reeling, dying, dehydration, and weft is solved, the beam of the fabric woven over 1000yds (yard) is moved as it is in the weaving process and refined in the continuous descaling refiner. The tenter work and the dyeing work can be carried out. Therefore, it is disadvantageous to cut at 55-60yds considering the loss rate of the process even though the standard is 50yds for efficient processing. Conventionally, The loss of more than 5% of the production amount and redundant work can be solved.

In the present invention, the polyester staple fiber fabric and the new-synthetic fiber fabric are subjected to scouring and refining operations in a continuous scouring machine, connected to the working machine of the present invention to perform shrinkage and relexing operations, and connected by tentering and dyeing operations It is very efficient to perform the work efficiently. Also, since the use of water is extremely low, the generation of wastewater is extremely reduced and the safety of the work is given, so that the shrinkage and re-work of the fabric are performed uniformly and effectively. .

Therefore, the present invention as described above can be applied to the reduction of the polyester staple fiber fabrics and the new composite fabrics, which require a unique tactile sensation with high lubrication property or high shrinkage property, by wet and dry using hot steam and hot hot wind It is a revolutionary processing method of polyester woven fabrics and new-woven fabrics that can enhance the processing of fabrics by performing shrinking and re-racing operations.

Claims (1)

Polyester lacquer using superheated steam and high-pressure hot wind characterized by shrinkage and rerex processing while recycled polyester recycled polyester lacquer fabric by continuous hot-air refining machine with superheated steam (wet) and high-temperature and high-pressure hot air (dry) Reduction and reserexing method of resigned materials.