CN219342477U - Biodegradable weft-knitted fabric with double-layer effect - Google Patents

Biodegradable weft-knitted fabric with double-layer effect Download PDF

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CN219342477U
CN219342477U CN202223476524.7U CN202223476524U CN219342477U CN 219342477 U CN219342477 U CN 219342477U CN 202223476524 U CN202223476524 U CN 202223476524U CN 219342477 U CN219342477 U CN 219342477U
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fabric
double
biodegradable
layer
coil
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王启明
陈力群
许贻东
蒲剑
张佩华
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Quanzhou Haitian Material Technology Corp
Donghua University
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Quanzhou Haitian Material Technology Corp
Donghua University
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    • Y02P70/62Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear

Abstract

The utility model discloses a double-layer-effect biodegradable weft-knitted fabric, which is formed by interweaving 40S cotton and biodegradable polyester fiber blended yarns and 75D/72F fine denier light-network-structure regenerated polyester DTY filaments, wherein the double-layer-effect biodegradable weft-knitted fabric comprises a front surface and a back surface, the front surface is provided with a front coil fabric layer formed by knitting longitudinal concave-convex stripes and the front surface is formed by knitting 75D/72F fine denier light-network-structure regenerated polyester DTY filaments, and the back surface is provided with a front coil fabric layer formed by knitting invisible longitudinal stripes and is formed by knitting 40S cotton and biodegradable polyester fiber blended yarns; the fabric has the advantages of double-sided double-layer different appearance effects, biodegradability, moisture absorption, quick drying, soft touch, fuzzing and pilling resistance and good dimensional stability.

Description

Biodegradable weft-knitted fabric with double-layer effect
Technical Field
The utility model relates to the technical field of knitted fabrics, in particular to a biodegradable weft-knitted fabric with a double-layer effect.
Background
The knitted clothing such as POLO shirt, T-shirt and the like in spring and summer not only needs to have good wearing comfort performances such as soft touch, moisture absorption, perspiration, ventilation, moisture permeability and the like, but also is green, ecological and environment-friendly in the production and processing process if biodegradable fiber materials and fiber materials for cyclic regeneration can be adopted, and is one of the requirements and development trends in the current age; the existing knitted clothing fabrics such as POLO shirts and T-shirts generally adopt all-cotton or polyester-cotton blended polyester fiber materials or polyester fiber materials with good moisture absorption and sweat release functions, and the all-cotton fabrics have the characteristics of softness, moisture absorption and ventilation, but after a human body sweats, sweat cannot be timely discharged to the outer layer of the fabrics, and the fabrics are adhered to the body to be clung to the skin so as to give people uncomfortable feeling; the polyester-cotton blended fabric has the characteristics of softness, moisture absorption and air permeability of cotton, and the polyester is stiff and smooth and easy to dry, but still has no good moisture absorption and sweat release functions; the terylene material with good moisture absorption and sweat release functions has excellent moisture conduction and quick drying functions, but the conventional material is derived from petroleum and cannot be biodegraded, and does not belong to green ecological textiles.
In view of the above, the present inventors have developed and designed the present utility model by intensively conceived against many defects and inconveniences caused by the imperfection of the fabric structure, and actively studied and improved attempts.
Disclosure of Invention
The utility model aims to provide a double-layer-effect biodegradable weft-knitted fabric which not only has special double-sided double-layer different-appearance color effects and biodegradability, but also has the functions of moisture conduction, quick drying, moisture absorption, sweat release, softness and ventilation.
In order to achieve the above object, the solution of the present utility model is:
the biodegradable weft-knitted fabric with the double-layer effect is formed by interweaving 40S cotton and biodegradable polyester fiber blended yarns and 75D/72F fine denier light-network structure regenerated polyester DTY filaments, and comprises a fabric body with a front side and a back side, wherein the front side of the fabric body is provided with a front side coil fabric layer with longitudinal concave-convex stripes, and the back side of the fabric body is provided with a front side coil fabric layer with invisible longitudinal stripes; the front coil fabric layer of the longitudinal concave-convex stripes is formed by knitting 75D/72F fine denier light-network structure regenerated polyester DTY filaments, and the front coil fabric layer of the invisible longitudinal stripes is formed by knitting 40S cotton and biodegradable polyester fiber blended yarns.
The front coil fabric layer of the longitudinal concave-convex stripes is formed by alternately configuring convex stripes and concave stripes, and the convex stripes are provided with three front coil longitudinal rows which are continuously arranged; the concave stripe is provided with a front coil column, and two transverse row coil forming coils with a smooth appearance effect and two transverse row coil collecting coils with a dot-shaped pinhole appearance effect are alternately arranged on the front coil column of the concave stripe.
The front-side coil fabric layer of the invisible longitudinal stripes is formed by alternately arranging double-layer front-side coil longitudinal rows of a single-side woven weft plain stitch structure and double-layer front-side coil longitudinal rows of a single-side woven weft plain stitch structure, wherein the single-side woven weft plain stitch structure is configured by three continuous rib type row needles.
The fabric body is a rib-type composite structure, and the arrangement of the rib-type composite structure is that single-needle single-row tuck and single-face loop knitting are alternately arranged.
The weight ratio of the 40S cotton to the biodegradable polyester fiber blended yarn to the 75D/72F fine denier light network structure regenerated polyester DTY filament yarn is 66 percent to 34 percent.
The blending ratio of the 40S cotton to the biodegradable polyester fiber blended yarn is 60-40%.
The square meter gram weight of the biodegradable weft-knitted fabric with the double-layer effect is 230-240g/m 2
Compared with the prior art, the biodegradable weft-knitted fabric with the double-layer effect has the following advantages:
1. the fabric has double-sided double-layer effect: the single-sided knitting structure design adopting rib needle arrangement configuration, the structure design that one needle is alternately gathered and alternately knitted with no work is adopted in every 4 needle cylinder needles, wherein: the design of the single-sided knitting structure enables the 40S cotton and the biodegradable polyester fiber blended yarn to be completely positioned on one side (the back side and the inner layer) of the fabric, and has soft hand feeling and good moisture absorption property; the 75D/72F fine denier light network structure regenerated polyester DTY filament is completely positioned on the other side (front surface and outer layer) of the fabric, and has certain luster and a stiff feel; in addition, each 4 needle cylinder needles have a structural design formed by combining alternate looping and alternate knitting of one needle with non-working looping and alternate knitting of one needle, so that one side of the 40S cotton and biodegradable polyester fiber blended yarn is only in the smooth appearance of invisible longitudinal stripes; one surface of the 75D/72F fine denier light network structure regenerated polyester DTY filament shows longitudinal concave-convex stripes on appearance, and flat appearance and pinhole appearance effects are alternately arranged at the concave stripes; the fabric has the double-sided double-layer effect of two sides with different raw material properties and different design patterns;
2. the fabric provided by the utility model has the characteristics of biodegradability: the blending ratio of the adopted 40S cotton to the biodegradable polyester fiber blended yarn is 60 percent to 40 percent, and the biodegradable polyester fiber is 95 percent of the clothing degradable which is abandoned and piled for 180 days and returns to the natural environment; the adopted 75D/72F fine denier light network structure regenerated polyester DTY filament also belongs to recycled renewable green fiber, the yarn weight ratio of the 40S cotton and biodegradable polyester fiber blended yarn to the 75D/72F fine denier light network structure regenerated polyester DTY filament interweaved fabric is 66 percent to 34 percent, the chemical fiber green fiber accounts for more than 50 percent, and the degradability is high.
3. The fabric disclosed by the utility model has the advantages of moisture absorption, quick drying and good wearing comfort: the fabric disclosed by the utility model has the moisture absorption and quick drying functions after moisture absorption and perspiration function finishing; the double-layer fabric tissue structure configured by rib needle arrangement ensures good dimensional stability of the fabric; the close-fitting layer 40S cotton and the biodegradable polyester fiber blended yarn are woven on one side, so that the fabric has good touch feeling and moisture absorption characteristics, and the ventilation performance of the fabric is improved by combining with the design of a pinhole point structure.
Drawings
FIG. 1 is a schematic front view of the front (outer layer) of the fabric of the present utility model with the effect of concave-convex stripes and punctiform pinholes;
FIG. 2 is a schematic front view of the fabric of the present utility model with the appearance effect of hidden longitudinal stripes on the opposite (inner) side.
Symbol description
A front face 10; a reverse face 20; protruding stripes 11; a concave stripe 12; a course looping coil 13; the courses are tucked into coils 14.
Detailed Description
In order to further explain the technical scheme of the utility model, the utility model is explained in detail by specific examples.
Referring to fig. 1 and 2, the utility model discloses a double-layer effect biodegradable weft-knitted fabric, which is formed by interweaving 40S cotton and biodegradable polyester fiber blended yarns and 75D/72F fine denier light network structure regenerated polyester DTY filaments, wherein the double-layer effect biodegradable weft-knitted fabric comprises a fabric body with a front side 10 and a back side 20, the front side 10 of the fabric body is provided with a front coil fabric layer with longitudinal concave-convex stripes, and the back side 20 of the fabric body is provided with a front coil fabric layer with invisible longitudinal stripes; the front coil fabric layer of the longitudinal concave-convex stripes is formed by knitting 75D/72F fine denier light network structure regenerated polyester DTY filaments, and the front coil fabric layer of the invisible longitudinal stripes is formed by knitting 40S cotton and biodegradable polyester fiber blended yarns; the fabric has the advantages of double-sided double-layer different appearance effects, biodegradability, moisture absorption, quick drying, soft touch, fuzzing and pilling resistance and good dimensional stability.
The front coil fabric layer of the longitudinal concave-convex stripes is formed by alternately configuring the convex stripes 11 and the concave stripes 12, and the convex stripes 11 are provided with three front coil longitudinal rows which are arranged continuously; the concave stripe 12 has one front side wale, and two course looping coils 13 with a flat appearance effect and two course tucking coils 14 with a dot-like pinhole appearance effect are alternately arranged on the front side wale of the concave stripe 12.
The invisible longitudinal stripe front-side loop fabric layer is formed by alternately arranging double-layer front-side loop wales of a single-side woven weft plain stitch structure and double-layer front-side loop wales of a single-side woven weft plain stitch structure, wherein the double-layer front-side loop wales are arranged by three continuous rib type row needles.
The fabric body is a rib-type composite structure, and the arrangement of the rib-type composite structure is that single-needle single-row tuck and single-face loop knitting are alternately arranged.
The weight ratio of the 40S cotton to biodegradable polyester fiber blended yarn to the 75D/72F fine denier light network structure regenerated polyester DTY filament yarn is 66-34%.
The blending ratio of the 40S cotton and biodegradable polyester fiber blended yarn is 60-40%.
The square meter gram weight of the biodegradable weft-knitted fabric with the double-layer effect is 230-240g/m 2
The width gram weight of the lower machine of the utility model: production control is carried out according to the required width gram weight of the finished product, and other working procedures such as a conventional process are carried out; the prepared optical grey cloth has a gate width of 190cm and a fabric square meter gram weight of 235g/m 2
Compared with the prior art, the biodegradable weft-knitted fabric with the double-layer effect has the following advantages:
1. the fabric has double-sided double-layer effect: the single-sided knitting structure design adopting rib needle arrangement configuration, the structure design that one needle is alternately gathered and alternately knitted with no work is adopted in every 4 needle cylinder needles, wherein: the design of the single-sided knitting structure enables the 40S cotton and the biodegradable polyester fiber blended yarn to be completely positioned on one side (the back surface 20 and the inner layer) of the fabric, and has soft hand feeling and good moisture absorption property; the 75D/72F fine denier light network structure regenerated polyester DTY filament is completely positioned on the other side (front 10 and outer layer) of the fabric, and has certain luster and a certain refreshing feel; in addition, each 4 needle cylinder needles have a structural design formed by combining alternate looping and alternate knitting of one needle with non-working looping and alternate knitting of one needle, so that one side of the 40S cotton and biodegradable polyester fiber blended yarn is only in the smooth appearance of invisible longitudinal stripes; one surface of the 75D/72F fine denier light network structure regenerated polyester DTY filament shows longitudinal concave-convex stripes on appearance, and flat appearance and pinhole appearance effects are alternately arranged at the concave stripes; the fabric has the double-sided double-layer effect of two sides with different raw material properties and different design patterns;
2. the fabric provided by the utility model has the characteristics of biodegradability: the blending ratio of the adopted 40S cotton to the biodegradable polyester fiber blended yarn is 60 percent to 40 percent, and the biodegradable polyester fiber is 95 percent of the clothing degradable which is abandoned and piled for 180 days and returns to the natural environment; the adopted 75D/72F fine denier light network structure regenerated polyester DTY filament also belongs to recycled renewable green fiber, the yarn weight ratio of the 40S cotton and biodegradable polyester fiber blended yarn to the 75D/72F fine denier light network structure regenerated polyester DTY filament interweaved fabric is 66 percent to 34 percent, the chemical fiber green fiber accounts for more than 50 percent, and the degradability is high.
3. The fabric disclosed by the utility model has the advantages of moisture absorption, quick drying and good wearing comfort: the fabric disclosed by the utility model has the moisture absorption and quick drying functions after moisture absorption and perspiration function finishing; the double-layer fabric tissue structure configured by rib needle arrangement ensures good dimensional stability of the fabric; the close-fitting layer 40S cotton and the biodegradable polyester fiber blended yarn are woven on one side, so that the fabric has good touch feeling and moisture absorption characteristics, and the ventilation performance of the fabric is improved by combining with the design of a pinhole point structure.
The utility model also discloses a production method of the double-layer effect biodegradable weft-knitted fabric, which comprises a knitting and weaving process and a finishing process, wherein the knitting and weaving process comprises the following steps of:
on a double-sided circular knitting machine with a cylinder diameter of 34 inches, a machine number of 32 needles/inch and a total needle number of 3408, knitting is carried out by adopting a double-sided circular knitting machine with a rib-type row needle arrangement of needle cylinder needles with 2 needle tracks and needle dial needles with 1 needle track; wherein a minimum cycle of one complete weave of the biodegradable weft-knitted fabric constituting the double layer effect is 4 wales x 8 courses, wherein: the 4 longitudinal rows are formed by arranging 2 needle tracks, 4 needle cylinders and 4 dial needles of one needle track at intervals, the 8 transverse rows are formed by arranging 8 loop forming systems around the needle cylinder, wherein,
the arrangement mode of the 1 complete-tissue 4 needle cylinder needles is ABBB, the arrangement mode of the 4 needle dial needles is AAAA, wherein A represents a high-heeled needle and B represents a low-heeled needle;
the yarn threading mode of the 8-way looping system of the 1 complete organization is as follows: the 1 st, 3 rd, 5 th and 7 th paths are penetrated with 75D/72F fine denier light network structure regenerated polyester DTY filaments, and the 2 nd, 4 th, 6 th and 8 th paths are penetrated with 40S cotton and biodegradable polyester fiber blended yarns;
the triangle configuration mode of the 1 fully organized 8-way looping system is as follows: the 1 st and 3 rd needle cylinder needle A corresponds to the collecting ring, the needle cylinder needle B corresponds to the non-working needle cylinder, and the needle dial needle A corresponds to the forming ring; the 5 th and 7 th needle cylinder needles A, B are correspondingly not operated, and the needle dial needle A is correspondingly looped; the needle cylinder needles A, B on the 2 nd, 4 th, 6 th and 8 th paths are correspondingly looped, and the needle dial needle A is correspondingly not operated;
table 1 shows 1 triangle and threading configuration table with complete structure
Figure SMS_1
Wherein: the threading configuration corresponds to: 1 represents a 75D/72F fine denier light network structure regenerated polyester DTY filament yarn, 2 represents a 40S cotton and biodegradable polyester fiber blended yarn;
triangle configuration symbol description:
Figure SMS_2
indicating needle dial needle looping, "delta" indicating needle cylinder needle looping, "."-" means that either the dial needle or the cylinder needle is inactive;
wherein: the average length of 75D/72F fine denier light network structure regenerated polyester DTY filaments in every 100 loops in the double-layer effect biodegradable weft-knitted fabric is 23.8cm when double-sided tuck and loop forming are interwoven, and the average length of the regenerated polyester DTY filaments is 21.4cm when single-sided loop forming is knitted; the average length of the 40S cotton and biodegradable polyester fiber blended yarn in every 100 loops in the double-layer effect biodegradable weft knitted fabric is 24.8cm.
The blank fabric of the fabric is dense: 82 wales/5 cm, longitudinal density: 103 courses/5 cm, square meter gram weight 158g/m 2 The lower frame is 224cm.
The post-finishing process of the present utility model comprises: cloth finishing, head sewing, oxygen bleaching, primary acid washing, primary cold washing, pre-shaping, terylene dyeing, reduction washing, secondary acid washing, secondary cold washing, cotton dyeing, tertiary cold washing, tertiary acid washing, soaping, hot washing, fourth cold washing, color fixation, dehydration, shaping and drying, shaping of finished products, rolling and inspection and detection of finished products; wherein, the liquid crystal display device comprises a liquid crystal display device,
oxygen bleaching process: injecting cold water into a cylinder of an L-shaped high-temperature high-pressure double-liquid-flow dyeing machine with a bath ratio of 1:10, starting a main pump, and putting the fabric into circulation operation; starting a feeding oxygen bleaching process program, and sequentially injecting a JFC penetrating agent diluted solution accounting for 1.0-1.02% of the weight of the fabric and a JET bath softener diluted solution accounting for 1.0-1.02% of the weight of the fabric from an additional cylinder of a dyeing machine into the dyeing machine in a linear feeding mode; after the circulating operation is carried out for 5 minutes, a caustic soda flake diluting solution accounting for 1.0 to 1.02 percent of the weight of the fabric and a hydrogen peroxide diluting solution accounting for 4.0 to 4.1 percent of the weight of the fabric are respectively injected into the dyeing machine from an additional cylinder of the dyeing machine in sequence in a linear feeding mode; after 3 minutes of circulating operation, the temperature of the solution and the fabric in the dyeing machine is raised to 100 ℃ from room temperature at a heating rate of 2.0 ℃/min and kept for 30 minutes; then cooling to 80 ℃ at the speed of 3.0 ℃/min, and washing the overflow water to 60 ℃ to drain;
the first acid washing process comprises the following steps: injecting cold water into a cylinder of the low-Angeles L-type high-temperature high-pressure double-liquid-flow dyeing machine according to a bath ratio of 1:10, starting a main pump and a pickling procedure, and heating up aqueous solution and fabric in the cylinder from room temperature to 60 ℃ at a heating rate of 4.0 ℃/min for heat preservation circulation; then injecting glacial acetic acid diluted solution accounting for 0.3 to 0.31 percent of the weight of the fabric into the dyeing machine from the additional cylinder; the liquid is discharged after heat preservation and circulation for 15 minutes at 60 ℃;
the first cold washing process comprises the following steps: injecting cold water into a cylinder of the L-shaped high-temperature high-pressure double-liquid-flow dyeing machine of the Angeles according to a bath ratio of 1:10, starting a main pump and a cold washing procedure, and performing cold washing for 10 minutes at room temperature in a circulating way to discharge liquid; repeating the first cold washing process for one time;
and (3) a pre-shaping process: adopting a Taiwan Ligen tentering setting machine to perform pre-setting processing, adding padding clear water, controlling the rolling surplus rate to be 85-90%, and setting the temperatures of a first section oven to a tenth section oven to be respectively: 160 ℃, 170 ℃, 180 DEG C180 ℃, 170 ℃; the rotating speed of a fan of the oven is set to 1600 revolutions per minute, the speed of the oven is controlled to be 24-25 m/minute, and the temperature of the cropping is controlled to be below 50 ℃;
the polyester dyeing process comprises the following steps: injecting cold water into a cylinder of the L-shaped high-temperature high-pressure double-liquid-flow dyeing machine of the Angeles in a bath ratio of 1:10, starting a main pump, and putting the fabrics into circulation operation; sequentially injecting acetic acid diluted solution accounting for 0.3-0.31% of the weight of the fabric and high-temperature leveling agent diluted solution accounting for 0.6-0.61% of the weight of the fabric into the dyeing machine from an additional cylinder of the dyeing machine; after 3 minutes of circulating operation, injecting fully dissolved disperse dye solution accounting for 0.39-0.393 percent of the weight of the fabric into a dye vat; after 3 minutes of circulating operation, testing the pH value of the dye liquor in the vat, and controlling the pH value of the dye liquor in the vat to be 3.5-4.2; starting a dyeing program, heating from room temperature to 70 ℃ at a heating rate of 3.0 ℃/min, and preserving heat for 5 minutes; heating to 110 ℃ at a heating rate of 1.5 ℃/min, and preserving heat for 5 minutes; heating to 130 ℃ at 1.5 ℃/min, and preserving heat for 30 minutes; then cooling to 110 ℃ at 2.5 ℃/min; then cooling to 80 ℃ at 3.0 ℃/min, sampling and color matching; draining after color confirmation;
the reduction washing process comprises the following steps: injecting cold water into a cylinder of the low-Angeles L-type high-temperature high-pressure double-liquid-flow dyeing machine according to a bath ratio of 1:10, starting a main pump and a reduction cleaning program, and circularly running at a temperature rising rate of 4.0-4.5 ℃/min from room temperature to 60 ℃; injecting a caustic soda flakes diluted solution accounting for 0.8-0.81% of the weight of the fabric, and circularly running for 3 minutes; heating from 60 ℃ to 70 ℃ at a heating rate of 2.5 ℃/min, performing heat preservation circulation, and then injecting a solution after dilution of sodium hydrosulfite accounting for 1.5-1.51% of the fabric weight ratio, and performing circulation operation for 3 minutes; heating from 70 ℃ to 80 ℃ at a heating rate of 2.5 ℃/min, preserving heat for 20 minutes, and then overflow washing to 60 ℃ for liquid discharge; injecting cold water into a cylinder of the L-shaped high-temperature high-pressure double-liquid-flow dyeing machine of the Angeles according to a bath ratio of 1:10, starting a main pump, circulating cold washing at room temperature for 5 minutes, and discharging liquid;
and (3) a second acid washing process: injecting cold water into a cylinder of the low-Angeles L-type high-temperature high-pressure double-liquid-flow dyeing machine according to a bath ratio of 1:10, starting a main pump and a pickling procedure, and heating up aqueous solution and fabric in the cylinder from room temperature to 60 ℃ at a heating rate of 4.0 ℃/min for heat preservation circulation; then injecting glacial acetic acid diluted solution accounting for 0.3 to 0.31 percent of the weight of the fabric into the dyeing machine from the additional cylinder; preserving heat at 60 ℃ and recycling for 15 minutes, and then draining;
and (3) a second cold washing process: injecting cold water into a cylinder of the L-shaped high-temperature high-pressure double-liquid-flow dyeing machine of the Angeles according to a bath ratio of 1:10, starting a main pump and a cold washing procedure, and performing cold washing for 10 minutes at room temperature in a circulating way to discharge liquid; repeating the second cold washing process for one time;
the cotton dyeing process comprises the following steps: injecting cold water into a cylinder of an L-shaped high-temperature high-pressure double-liquid-flow dyeing machine of the Angeles in a bath ratio of 1:10, starting a main pump and a reactive dye charging dyeing process, and heating the aqueous solution and fabrics in the cylinder from room temperature to 40 ℃; rapidly injecting a solution obtained by dissolving anhydrous sodium sulfate accounting for 60-60.6% of the weight of the fabric from an additional cylinder of the dyeing machine into a cylinder of the dyeing machine; after 10 minutes of circulating operation, injecting fully dissolved active dye solution accounting for 2.52 to 2.523 percent of the weight of the fabric in a linear feeding mode within 20 minutes; after 10 minutes of circulation operation, injecting fully dissolved sodium carbonate solution accounting for 2-2.1% of the weight of the fabric from an additional cylinder of the dyeing machine into the cylinder of the dyeing machine in a linear feeding mode within 5 minutes; after 10 minutes of circulating operation, heating from 40 ℃ to 60 ℃ at a heating rate of 1 ℃/minute, and preserving heat; after 10 minutes of circulation operation; injecting fully dissolved sodium carbonate solution accounting for 18-18.1% of the weight of the fabric in a linear feeding mode within 20 minutes, continuing heat preservation and circulation for 50 minutes, and sampling for color matching; qualified color, and draining after overflow washing for 10 minutes;
and (3) a third cold washing process: injecting cold water into a cylinder of the L-shaped high-temperature high-pressure double-liquid-flow dyeing machine of the Angeles in a bath ratio of 1:10, starting a main pump and a cold washing procedure, and discharging liquid after circulating cold washing for 10 minutes;
and (3) a third acid washing process: injecting cold water into a cylinder of the low-Angeles L-type high-temperature high-pressure double-liquid-flow dyeing machine according to a bath ratio of 1:10, starting a main pump and a pickling procedure, and heating up aqueous solution and fabric in the cylinder from room temperature to 60 ℃ at a heating rate of 4.0 ℃/min for heat preservation circulation; then injecting glacial acetic acid diluted solution accounting for 0.3 to 0.31 percent of the weight of the fabric into the dyeing machine from the additional cylinder; the liquid is discharged after heat preservation and circulation for 15 minutes at 60 ℃;
the soaping process comprises the following steps: injecting cold water into a cylinder of an L-shaped high-temperature high-pressure double-liquid-flow dyeing machine of the Angeles in a bath ratio of 1:10, starting a main pump and a soaping program, and injecting diluted soaping agent solution accounting for 0.4-0.41% of the weight of the fabric into the dyeing machine from an additional cylinder of the dyeing machine; after 3 minutes of circulating operation, the temperature is raised from room temperature to 85 ℃ at a heating rate of 3 ℃/min, the temperature is kept for 20 minutes, and liquid is discharged after overflow washing water is at 60 ℃;
and (3) a hot washing process: injecting cold water into a cylinder of an L-shaped high-temperature high-pressure double-liquid-flow dyeing machine in a angele state according to a bath ratio of 1:10, starting a main pump and a hot washing program, heating water solution and fabrics in the dyeing machine from room temperature to 60 ℃ at a heating rate of 4.0 ℃ per minute, and circularly running for 10 minutes and then discharging liquid;
and a fourth cold washing process: injecting cold water into a cylinder of the L-shaped high-temperature high-pressure double-liquid-flow dyeing machine of the Angeles in a bath ratio of 1:10, starting a main pump and a cold washing procedure, and discharging liquid after circulating cold washing for 10 minutes;
the color fixation process comprises the following steps: injecting cold water into a cylinder of an L-shaped high-temperature high-pressure double-liquid-flow dyeing machine of the Angeles in a bath ratio of 1:10, starting a main pump and a color fixing procedure, injecting diluted color fixing agent solution accounting for 2.0-2.04% of the weight of the fabric into the dyeing machine from an additional cylinder of the dyeing machine, heating from room temperature to 45 ℃ at a heating rate of 2.5 ℃/min, and preserving heat for 20 minutes and then discharging liquid;
shaping and drying: adopting a door Fuji tentering setting machine of an 8-section oven to set and dry, and drying and processing the dehydrated semi-finished product; the passing mill is free of water, and the temperatures of the first section of oven and the eighth section of oven are respectively set as follows: 110 ℃, 120 ℃, 110 ℃, the rotating speed of a fan of an oven is set to 1600 turns/min, the speed of the oven is controlled to 19-20 m/min, and the temperature of the cropping is controlled to be below 50 ℃;
the shaping process of the finished product comprises the following steps: shaping the semi-finished product by adopting a door Fuji tentering shaping machine of an 8-section oven; preparing padding solution according to the corrected padding process formula; the weight of the prepared padding solution is calculated and the preparation amount is controlled according to the total amount of the cloth cover belt liquid after padding and the padding tank volume; the padding liquid comprises the following components: 15g/L of moisture-absorbing and sweat-releasing finishing auxiliary agent, 3g/L of penetrating agent and 0.2g/L of glacial acetic acid; 120L of prepared solution is added into a padding tank of a Men Fuji tentering setting machine, and the rolling surplus rate is controlled to be 85-90%; the temperatures of the first to eighth section ovens are respectively set as follows: 130 ℃, 140 ℃, 150 ℃, 140 ℃, the rotating speed of a fan of an oven is controlled to 1600 turns/min, the speed of the car is controlled to 19-20 m/min, and the temperature of the cropping is controlled to be below 50 ℃.
The preparation process of the fabric is simple: the fabric can be woven on a double-sided circular knitting machine with two rib-type needle arrangement at the upper part and two rib-type needle arrangement at the lower part, has short after-finishing process flow and has the characteristic of simple preparation process.
The biodegradable weft-knitted fabric with the double-layer effect produced by the method is subjected to standing for 48 hours in a standard state, and then the fabric is tested for the wearability such as moisture absorption, quick drying and the like by referring to the standard, and the corresponding standard and test result are shown in Table 2.
Table 2 fabric performance test results
Figure SMS_3
Figure SMS_4
The above examples and drawings are not intended to limit the form or form of the present utility model, and any suitable variations or modifications thereof by those skilled in the art should be construed as not departing from the scope of the present utility model.

Claims (6)

1. A biodegradable weft-knitted fabric with double-layer effect is characterized in that: the biodegradable weft-knitted fabric with the double-layer effect is formed by interweaving 40S cotton and biodegradable polyester fiber blended yarns and 75D/72F regenerated polyester DTY filaments with a fine denier light network structure, and comprises a fabric body with a front side and a back side, wherein the front side of the fabric body is provided with a front side coil fabric layer with longitudinal concave-convex stripes, and the back side of the fabric body is provided with a front side coil fabric layer with invisible longitudinal stripes; the front coil fabric layer of the longitudinal concave-convex stripes is formed by knitting 75D/72F fine denier light-network structure regenerated polyester DTY filaments, and the front coil fabric layer of the invisible longitudinal stripes is formed by knitting 40S cotton and biodegradable polyester fiber blended yarns.
2. A double effect biodegradable weft knit fabric according to claim 1 wherein: the front coil fabric layer of the longitudinal concave-convex stripes is formed by alternately configuring convex stripes and concave stripes, and the convex stripes are provided with three front coil longitudinal rows which are continuously arranged; the concave stripe is provided with a front coil column, and two transverse row coil forming coils with a smooth appearance effect and two transverse row coil collecting coils with a dot-shaped pinhole appearance effect are alternately arranged on the front coil column of the concave stripe.
3. A double effect biodegradable weft knit fabric according to claim 1 wherein: the front-side coil fabric layer of the invisible longitudinal stripes is formed by alternately arranging double-layer front-side coil longitudinal rows of a single-side woven weft plain stitch structure and double-layer front-side coil longitudinal rows of a single-side woven weft plain stitch structure, wherein the single-side woven weft plain stitch structure is configured by three continuous rib type row needles.
4. A double effect biodegradable weft knit fabric according to claim 1, wherein: the fabric body is a rib-type composite structure, and the arrangement of the rib-type composite structure is that single-needle single-row tuck and single-face loop knitting are alternately arranged.
5. A double effect biodegradable weft knit fabric according to claim 1, wherein: the weight ratio of the 40S cotton to the biodegradable polyester fiber blended yarn to the 75D/72F fine denier light network structure regenerated polyester DTY filament yarn is 66 percent to 34 percent.
6. A double effect biodegradable weft knit fabric according to claim 1, wherein: the square meter gram weight of the biodegradable weft-knitted fabric with the double-layer effect is 230-240g/m 2
CN202223476524.7U 2022-12-26 2022-12-26 Biodegradable weft-knitted fabric with double-layer effect Active CN219342477U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223476524.7U CN219342477U (en) 2022-12-26 2022-12-26 Biodegradable weft-knitted fabric with double-layer effect

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223476524.7U CN219342477U (en) 2022-12-26 2022-12-26 Biodegradable weft-knitted fabric with double-layer effect

Publications (1)

Publication Number Publication Date
CN219342477U true CN219342477U (en) 2023-07-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202223476524.7U Active CN219342477U (en) 2022-12-26 2022-12-26 Biodegradable weft-knitted fabric with double-layer effect

Country Status (1)

Country Link
CN (1) CN219342477U (en)

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