CN106906562B - Production process of high-elasticity leather base cloth - Google Patents
Production process of high-elasticity leather base cloth Download PDFInfo
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- CN106906562B CN106906562B CN201710102592.1A CN201710102592A CN106906562B CN 106906562 B CN106906562 B CN 106906562B CN 201710102592 A CN201710102592 A CN 201710102592A CN 106906562 B CN106906562 B CN 106906562B
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- 239000010985 leather Substances 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000009941 weaving Methods 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 238000004806 packaging method and process Methods 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims description 32
- 230000002829 reductive effect Effects 0.000 claims description 16
- 208000012886 Vertigo Diseases 0.000 claims description 15
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- 238000009987 spinning Methods 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 10
- 210000002268 wool Anatomy 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 8
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- 241001589086 Bellapiscis medius Species 0.000 claims description 4
- 238000009940 knitting Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000003345 natural gas Substances 0.000 claims description 4
- 238000001291 vacuum drying Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 2
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- 230000008602 contraction Effects 0.000 claims 3
- 238000007493 shaping process Methods 0.000 abstract description 12
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- 239000000835 fiber Substances 0.000 description 5
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- 238000004043 dyeing Methods 0.000 description 3
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- 230000003247 decreasing effect Effects 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
- D04B1/16—Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
- D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
- D02G1/0213—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting after drawing the yarn on the same machine
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C11/00—Teasing, napping or otherwise roughening or raising pile of textile fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C7/00—Heating or cooling textile fabrics
- D06C7/02—Setting
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
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- Chemical & Material Sciences (AREA)
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- General Chemical & Material Sciences (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention discloses a production process of high-elasticity leather base cloth, which comprises the steps of preparing raw material colored yarn, elasticizing, weaving, napping, shaping and packaging, and simplifies the process steps, improves the production efficiency and reduces the pollution to the environment on the premise of ensuring that the manufactured leather base cloth has high elasticity.
Description
Technical Field
The invention relates to a production process of simulated leather, in particular to a production process of leather base cloth.
Background
With the continuous improvement of living standard, the requirements of people on the garment fabric are higher and higher, and the textile fabric with bright color, soft hand feeling, good drapability and good rebound resilience is favored by consumers. Leather base cloth is favored as a back sheet for artificial leather, which has good elasticity, great tensile strength and smoother surface flatness. The prior leather base cloth production process, for example, in Chinese invention patent with the notice number of CN102168339B, discloses 'an elastic leather base cloth and a preparation method thereof', a grey cloth is formed by blending, and the leather base cloth is prepared by desizing, scouring, dyeing, fluffing and sizing the grey cloth.
Disclosure of Invention
The invention aims to provide a production process of high-elasticity leather base cloth which is environment-friendly and efficiently produced.
The technical purpose of the invention is realized by the following technical scheme:
a production process of high-elasticity leather base cloth comprises the following steps:
1) preparing raw material color silk;
2) processing the color yarn into DTY tensile deformation yarn by an elasticizer;
3) weaving the DTY drawn textured yarns into grey cloth by adopting a double-faced circular weaving machine;
4) napping the grey cloth by using an imported card clothing by using a napping machine to form napped cloth;
5) forming the napped cloth into a final product in a drying room;
6) and packaging and warehousing.
By adopting the technical scheme, the subsequent dyeing process of the grey cloth is cancelled, and the colored grey cloth is directly formed by the colored filaments, so that the production cost is greatly reduced, the process flow is reduced, and the production efficiency is improved; secondly, the colored yarn is required to be mixed with a colored material in the preparation process, the original distribution of the components in the ordered or stacked state in space is changed, and the probability of particles and volume units of any components at any specific point is increased, so that compared with the existing common yarn, the bulkiness of the colored yarn is greatly improved, the bulkiness of the colored yarn is further improved after subsequent texturing treatment, the strength and toughness of the colored yarn are improved, further, no wool raising oil is required to be added before napping of gray fabric, the bulkiness requirement of the napping process can be met, the production cost is reduced, the pollution to the environment is reduced, the density and the uniformity of wool are improved by using the inlet card clothing in the napping process, and the finally obtained product has elasticity, toughness and bulkiness which are superior to those of leather base fabric produced by the existing process.
Preferably, the preparation method of the raw material color silk comprises the following steps:
1) carrying out vacuum drying on the PET slices, wherein the drying temperature is controlled to be between 150 ℃ and 170 ℃, and the water content of the dried PET slices is less than or equal to 0.0025%;
2) mixing the dried PET slices and the color master batches according to a certain proportion, putting the mixture into a screw extruder for melting, and controlling the melting temperature to be 290-295 ℃;
3) the extruded melt enters a spinning box body, and is subjected to spinning treatment through a spinning nozzle, wherein the temperature in the spinning box body is controlled to be 290-295 ℃;
4) cooling the spun colored filaments, and reducing the surface temperature of the colored filaments to 45-55 ℃;
5) oiling the surface of the colored yarn;
6) and winding the colored silk by using 3500-3600 meters as a roll.
By adopting the technical scheme, the PET slices are heated uniformly by vacuum drying, and are dried and simultaneously enter the screw extruder together with the color master batches according to a certain proportion, and the surface contact between the PET slices and the color master batches is more complete when the PET slices and the color master batches are mixed in the drying process, so that the color of the color yarns obtained after mixing is more uniform; secondly, the temperature in the melting and spinning box body is limited to reduce the deformation of the color yarn, the color yarn is oiled on the surface after being cooled to a certain temperature to improve the toughness, and finally, the length of a winding of the color yarn is limited to determine the draft ratio during winding, so that the finally obtained color yarn has better filling power.
Preferably, the thread path sequence of the colored thread in the draw texturing machine in the step 2) is as follows:
the device comprises a raw silk cylinder, a first stretching roller, a deformation hot box, a cooling plate, a false twister, a second stretching roller, a main network device, a setting hot box, a third stretching roller, an oiling system and a winding system, wherein the temperature of the deformation hot box is controlled to be 175-180 ℃, the temperature of the setting hot box is controlled to be 120-125 ℃, the drafting ratio of elasticizing is 1.15-1.2, the temperature of a color silk is reduced to be 55-59 ℃ under the action of the cooling plate, and the oil content of the color silk is controlled to be 2.3-2.7% after passing through the oiling system.
By adopting the technical scheme, the color silk is stretched by the second stretching roller after being fed from the first stretching roller and simultaneously enters the deformation hot box under the twisting action transmitted from the false twister. The color silk is subjected to the changes of stretching deformation, heat setting and the like under the action of stretching force, false twisting torsional force and heat. And when the color yarns are drawn out of the second drawing roller, the drawing deformation process is finished, and the fibers have certain strength, elongation and fluffiness. In order to reduce the internal stress of the color yarns, the high elastic yarns from the second stretching roller are input into a shaping hot box for supplementary heat shaping. Because a certain speed difference (overfeeding) exists between the second drawing roller and the third drawing roller, the color filaments are slightly relaxed in the shaping hot box, so that the color filaments are subjected to supplementary heat shaping substantially to eliminate the internal stress of the fibers, promote the molecular chain segments with high partial energy to be disoriented and achieve the aim of stabilizing the fiber structure; the cooling plate is used for reducing the temperature of the color silk, fixing the thermal deformation of the color silk and reducing the thermoplasticity of the color silk, so that the color silk has certain rigidity and is more beneficial to the transmission of twist. And the color silk is output from the third drawing roller and then enters an oiling system. The purpose of oiling the colored silk is to increase the smoothness and cohesion of the fiber, reduce the static electricity of the fiber and ensure that the reeled spindle has good unwinding and weaving performance. The color silk finally formed has higher bulkiness.
Preferably, the circular weaving machine in the step 3) weaves in a weft knitting mode, and the density of the grey cloth is controlled to be 12-14 meshes.
By adopting the technical scheme, the gray fabric woven by the circular weaving machine in a weft knitting mode on the DTY has good toughness, the density of the finally manufactured gray fabric is controlled to be 12-14 meshes, and better filling power is guaranteed on the premise of certain toughness.
Preferably, in the step 4), the napping speed of the grey cloth is controlled to be 25-26 m/min, the grey cloth is subjected to pre-napping, secondary napping and third napping treatment on a napping machine in sequence, wherein the ratio of the width of the pre-napping is 0.75-0.80, the ratio of the width of the secondary napping is 0.70-0.74, and the ratio of the width of the third napping is 0.63-0.73.
By adopting the technical scheme, the grey cloth is subjected to three-time napping in the napping machine by keeping constant-speed transmission of 25-26 m/min, a certain shrinking-width ratio is controlled in each napping, and the density and the hand sensitivity of the napped wool are improved.
Preferably, the temperature of the drying room in the step 5) is 200-220 ℃, and the chain transmission speed is 80-90 yards.
Through adopting above-mentioned technical scheme, the napping cloth is stereotyped through the heating in the baking house, and the temperature in baking house crosses low easy shrinkage factor that makes the napping cloth too big, and the high temperature leads to the napping cloth to go up the woollen easily and takes place the rolling influence and feel, and control transfer rate when guaranteeing the even heating design of napping cloth, improves rolling efficiency.
Preferably, the ratio of the width of the inlet of the drying room to the width of the outlet of the drying room is 0.5-0.53, and the side edge of the track in the drying room forms an included angle of 0.75-0.8 degrees with the advancing direction of the napping cloth.
Through adopting above-mentioned technical scheme, napping cloth utilizes the slope setting of track side in the baking house to carry out the amplification operation in data send process when finalizing the design for the development that the woollen can be even on the napping cloth surface, the density that better keeps the woollen improves and feels.
Preferably, the single-side napping is carried out on the grey cloth in the step 4), and the height of the napped wool is kept between 0.1 mm and 0.15 mm.
By adopting the technical scheme, the single-side napping operation is only carried out on the grey cloth to ensure the amplitude shrinkage rate, the density is more uniform when the height of the wool is kept between 0.1 mm and 0.15mm, and the hand feeling is better.
Preferably, the drying room in the step 5) adopts a natural gas heating mode to heat and shape the napping cloth.
Through adopting above-mentioned technical scheme, natural gas heating methods can make napped cloth be heated more evenly, and is better in the design effect.
In conclusion, the invention has the following beneficial effects:
1. the transmission process is changed, the subsequent dyeing operation on the grey cloth is omitted by directly preparing the color yarns, the process flow is simplified, the production efficiency is improved, and the pollution to the environment is reduced;
2. the method comprises the steps of limiting the drying temperature, the water content, the melting temperature, the spinning temperature, the cooling temperature and the winding length in the preparation process of the colored yarns, and performing oiling operation before winding, so as to preliminarily ensure the toughness and the bulkiness of the colored yarns; secondly, controlling the deformation hot box, the setting hot box, the cooling temperature and the oil content of the oiled dyed yarn of the texturing machine in combination with the limitation of the density of the grey cloth in the weaving process, so that the grey cloth achieves better filling power, and the density and the hand sensitivity of the woollen material after napping are provided for the subsequent napping process;
3. through adopting the tertiary napping operation in the process of napping for grey cloth can realize even amplitude reduction, and in subsequent design process, the temperature of baking house, chain drive's speed and the setting of cooperation track side slope in the baking house make the napping cloth can obtain even amplification process, guarantee that the density of surface woollen guarantees that the leather base cloth that produces has higher elasticity and toughness simultaneously.
Detailed Description
The present invention will be described in further detail below.
Example one
A production process of high-elasticity leather base cloth comprises the following steps:
firstly, preparing raw material color silk
The preparation method of the raw material color silk comprises the following steps:
1) carrying out vacuum drying on the PET slices, controlling the drying temperature to be 155 ℃, and controlling the water content of the dried PET slices to be less than or equal to 0.0025%;
2) mixing the dried PET slices and the color master batches according to a certain proportion, putting the mixture into a screw extruder for melting, and controlling the melting temperature to be 290-295 ℃;
3) feeding the extruded colored filaments into a spinning box body, and carrying out spinning treatment through a spinning nozzle, wherein the temperature in the spinning box body is controlled to be 290-295 ℃;
4) cooling the spun colored filaments, and reducing the surface temperature of the colored filaments to 50 ℃;
5) oiling the surface of the colored yarn;
6) and winding the colored silk by using 3500 m as a roll.
Wherein, the drying mode and the heating mode in the spinning box body adopt electric heating.
Secondly, the color yarn is elasticated into DTY drawing deformation yarn
And (3) carrying out texturing operation on the prepared colored yarn through a texturing machine, wherein the yarn path sequence of the colored yarn in the texturing machine is as follows:
the drawing and texturing machine comprises a raw silk tube, a first drawing roller, a texturing hot box, a cooling plate, a false twister, a second drawing roller, a main network device, a shaping hot box, a third drawing roller, an oiling system and a winding system, wherein the temperature of the texturing hot box is controlled to be 175 ℃, the temperature of the shaping hot box is controlled to be 120 ℃, the draw ratio of texturing is 1.15, the temperature of a color silk is reduced to 55 ℃ under the action of the cooling plate, and the oil content of the color silk is controlled to be 2.3% after passing through the oiling system.
Weaving with three-layer circular loom
The DTY draw textured yarn is woven by a circular weaving machine in a weft knitting mode, and the density of the obtained grey cloth after weaving is 12 meshes.
Fourthly, napping the grey cloth
The single-side napping operation is carried out on the gray fabric through a napping machine, the Swiss glass Lav inlet card clothing is adopted, the napping speed of the gray fabric is controlled to be 25m/min, the gray fabric is sequentially subjected to pre-napping, secondary napping and third napping treatment on the napping machine, the amplitude ratio of the pre-napping is 0.75, the amplitude ratio of the secondary napping is 0.70, the amplitude ratio of the third napping is 0.63, and the height of the finally napped wool material is kept between 0.1 mm and 0.15 mm.
The neck-in ratio is defined as the width of the raw fabric after napping compared to the width of the raw fabric before napping, and table 1 below shows the width variation of a 2-meter wide raw fabric after the napping process.
Fifthly, heating and shaping
And (3) heating and shaping the napped cloth formed after napping in a drying room, wherein the heating mode adopts natural gas heating, the temperature in the drying room is kept at 200 ℃, and the chain conveying speed is 80 yards. The ratio of the width of the inlet of the drying room track to the width of the outlet is 0.5, the preferred width of the drying room inlet is 80cm, the width of the outlet is 160cm, the total length of the drying room is 30 meters, the side edge of the track and the advancing direction of the napping cloth form an included angle of 0.75 degrees, and the napping cloth is finally made into the leather base cloth after being subjected to heat setting.
And sixthly, packaging and warehousing.
Tables 2 to 6 show the comparison of the indexes of the colored yarn, the grey cloth, the napped cloth and the leather base cloth in the present embodiment with those of the prior art
From the data examined in Table 2, the colored filaments obtained according to the procedure of this example exhibited a smaller increase in bulk and elongation at break than the conventional raw material filaments, and a slight decrease in tear strength than the conventional raw material filaments.
From the data detected in table 3, the bulkiness and elongation at break of the colored yarn are greatly improved through the texturing process, while the DTY obtained through the operation steps in this embodiment is greatly improved in bulkiness compared with the existing DTY, and the elongation at break and tear strength are similar to the existing DTY.
As can be seen from the data detected in table 4, the bulkiness and elongation at break of the fabric obtained by DTY weaving on the circular loom were greatly reduced, while the tearing strength was greatly increased, whereas the bulkiness and elongation at break of the fabric obtained according to the procedure of this example were not much reduced, while the tearing strength and elongation at break were similar to those of the conventional fabric.
As can be seen from the data detected in table 5, the fluffed cloth obtained by napping the raw fabric by the napping machine was increased in bulk and slightly decreased in tear strength, and the elongation at break remained similar. The raising width of the fluffed cloth obtained according to the operation steps in the embodiment is larger, and the breaking elongation and the tearing strength are similar to those of the prior grey cloth.
From the data detected in table 6, the bulkiness, tear strength, and elongation at break of the leather base fabric finally obtained after the heat setting of the napped fabric were all improved. The bulk of the leather substrate obtained according to the procedure of this example is much higher than that of the existing leather substrate, and the tearing strength and elongation at break are similar to those of the existing leather substrate.
The detection standards are all detected according to the filling power and GB/T10288-; the tearing strength is detected according to the GB/T3917-1997 standard; elongation at break was measured according to GB/T3923.1-1997.
Example two
The production process of the high-elasticity leather base cloth is different from the first embodiment in that the drying temperature is controlled at 168 ℃, and the surface temperature of the color filaments is reduced to 50 ℃; the temperature of the shaping hot box is controlled at 125 ℃, the draw ratio is 1.2, the temperature of the color filament is reduced to 59 ℃ under the action of the cooling plate, and the oil content of the color filament is controlled at 2.7% after passing through the oiling system; the density of the grey cloth woven by the circular weaving machine is 14 meshes; controlling the amplitude ratio of the pre-stretched wool of the grey cloth to be 0.8, the amplitude ratio of the second napping to be 0.74 and the amplitude ratio of the third napping to be 0.73; the drying room is controlled at 220 ℃, the ratio of the width of an inlet of the drying room track to the width of an outlet of the drying room track is 0.53, and the side edge of the track forms an included angle of 0.8 degrees with the advancing direction of the napping cloth.
EXAMPLE III
The production process of the high-elasticity leather base cloth is different from the first embodiment in that the drying temperature is controlled at 160 ℃, the surface temperature of the dyed yarns is reduced to 45 ℃, and 3600 meters are used as a roll to roll the dyed yarns; the temperature of the deformation hot box is controlled to be 180 ℃, the temperature of the shaping hot box is controlled to be 123 ℃, the drafting ratio is 1.18, the temperature of the color filament is reduced to 57 ℃ under the action of the cooling plate, and the oil content of the color filament is controlled to be 2.5% after passing through the oiling system; the density of the grey cloth woven by the circular weaving machine is 13 meshes; controlling the amplitude ratio of the pre-stretched wool of the grey cloth to be 0.77, the amplitude ratio of the second napping to be 0.72 and the amplitude ratio of the third napping to be 0.68; the drying room is controlled at 200 ℃, the chain transmission speed is 85 yards, the ratio of the inlet width to the outlet width of the drying room track is 0.51, and the side edge of the track forms an included angle of 0.77 degrees with the advancing direction of the napping cloth.
Example four
The production process of the high-elasticity leather base cloth is different from the first embodiment in that the drying temperature is controlled at 170 ℃, the surface temperature of the dyed yarns is reduced to 55 ℃, and 3600 meters are used as a roll to roll the dyed yarns; the temperature of the deformation hot box is controlled to be 180 ℃, the temperature of the shaping hot box is controlled to be 123 ℃, the drafting ratio is 1.17, the temperature of the color filament is reduced to 56 ℃ under the action of the cooling plate, and the oil content of the color filament is controlled to be 2.6% after passing through the oiling system; the density of the grey cloth woven by the circular weaving machine is 13 meshes; the napping speed of the napping machine is 26m/min, the amplitude ratio of the pre-napped grey cloth is controlled to be 0.78, the amplitude ratio of the second napping is 0.73, and the amplitude ratio of the third napping is 0.68; the drying room is controlled at 220 ℃, the chain transmission speed is 85 yards, the ratio of the inlet width to the outlet width of the drying room track is 0.52, and the side edge of the track forms an included angle of 0.78 degrees with the advancing direction of the napping cloth.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (1)
1. A production process of high-elasticity leather base cloth is characterized by comprising the following steps:
1) the preparation method of the raw material color yarn comprises the following steps:
s1, carrying out vacuum drying on the PET slices, wherein the drying temperature is controlled to be between 150 and 170 ℃, and the water content of the dried PET slices is less than or equal to 0.0025%;
s2, mixing the dried PET slices and the color master batches according to a certain proportion, putting the mixture into a screw extruder for melting, and controlling the melting temperature to be 290-295 ℃;
s3, enabling the extruded melt to enter a spinning box body, and carrying out spinning treatment through a spinning nozzle, wherein the temperature in the spinning box body is controlled to be 290-295 ℃;
s4, cooling the spun colored yarn, and reducing the surface temperature of the colored yarn to 45-55 ℃;
s5, oiling the surface of the color silk;
s6, winding the colored silk by using 3500-3600 meters as a roll;
2) and processing the color yarn into DTY (draw textured yarn) draw textured yarn through an elasticizer, wherein the yarn path sequence of the color yarn in the elasticizer is as follows:
the device comprises a raw silk cylinder, a first stretching roller, a deformation hot box, a cooling plate, a false twister, a second stretching roller, a main network device, a setting hot box, a third stretching roller, an oiling system and a winding system, wherein the temperature of the deformation hot box is controlled to be 175-180 ℃, the temperature of the setting hot box is controlled to be 120-125 ℃, the draw ratio of elasticizing is 1.15-1.2, the temperature of a color silk is reduced to be 55-59 ℃ under the action of the cooling plate, the oil content of the color silk is controlled to be 2.3-2.7% after the color silk passes through the oiling system, and a certain speed difference is formed between the second stretching roller and the third stretching roller so that the color silk can be overfed into the setting hot box;
3) weaving the DTY drawn textured yarns into grey cloth by adopting a double-faced circular weaving machine, and weaving the grey cloth by adopting a weft knitting mode by adopting the circular weaving machine, wherein the density of the grey cloth is controlled to be 12-14 meshes;
4) the method comprises the following steps of napping a grey cloth by using an inlet card clothing by using a napping machine to form a napped cloth, wherein the napping speed of the grey cloth is controlled to be 25-26 m/min, and the grey cloth is subjected to pre-napping, secondary napping and third napping treatment on the napping machine in sequence, wherein the amplitude contraction ratio of the pre-napping is 0.75-0.80, the amplitude contraction ratio of the secondary napping is 0.70-0.74, the amplitude contraction ratio of the third napping is 0.63-0.73, and the height of a napped wool material is kept between 0.1-0.15 mm;
5) forming the napped fabric into a final product through a drying room, wherein the temperature of the drying room is 200-220 ℃, the transmission speed of a chain is 80-90 yards, the ratio of the width of an inlet of a track in the drying room to the width of an outlet of the track is 0.5-0.53, the side edge of the track in the drying room and the advancing direction of the napped fabric form an included angle of 0.75-0.8 degrees, and the drying room adopts a natural gas heating mode to heat and form the napped fabric;
6) and packaging and warehousing.
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| CN107700054A (en) * | 2017-11-17 | 2018-02-16 | 江阴市博帆化纺有限公司 | A kind of processing method of the high-elastic flannelette of cloud |
| CN113802312A (en) * | 2021-10-26 | 2021-12-17 | 浙江云中马股份有限公司 | Breadth-reducing napping process and napping finishing equipment for wide leather base cloth |
| CN114717831B (en) * | 2022-03-31 | 2023-05-12 | 三明建华纺织有限公司 | Base cloth processing method and device for high-strength PU (polyurethane) artificial leather |
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| CN100489168C (en) * | 2003-12-25 | 2009-05-20 | 中国石化仪征化纤股份有限公司 | production method of low boiling water contraction rate polyester fiber drafting textured filament yarn |
| WO2008004733A1 (en) * | 2006-07-07 | 2008-01-10 | Kolonglotech. Inc | Spacer fabric and method of fabricating the same |
| CN101037810A (en) * | 2007-03-02 | 2007-09-19 | 杭州华欣纺织有限公司 | Production technique of colorful terylene cotton embroidery thread |
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| CN105951344A (en) * | 2016-07-07 | 2016-09-21 | 浙江南旋针纺有限公司 | Grey cloth napping process for single knit artificial leather base cloth |
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