阅读说明：本技术 一种交错波纹弹性针织面料及其制备方法 (Staggered corrugated elastic knitted fabric and preparation method thereof ) 是由 钟国能 郭文婷 黎亮 毛永强 于 2019-08-26 设计创作，主要内容包括：本发明涉及一种交错波纹弹性针织面料及其制造方法,面料采用再生涤纶、弹性氨纶、涤纶再生短纤维与棉纤维混纺的混纺纱交织的特殊双面结构；双面结构一面为交错波纹立体结构,另一面为平整光滑的线性直条结构；交织一路为再生涤纶纱与弹性氨纶的添纱组织,一路为涤纶再生短纤维与棉纤维混纺的混纺纱。本发明的交错波纹弹性针织面料,天然纤维与再生合成纤维搭配,既环保又改善棉纤维的性能,面料舒适环保；弹性氨纶的合理使用,使面料染色,整理之后织物紧致,且具有很好的拉伸回复性；双面面料一面呈现交错波纹的立体效果、一面呈现平整光滑的线性直条效果,面料质感强烈、肌理明显。(The invention relates to a staggered ripple elastic knitted fabric and a manufacturing method thereof, wherein the fabric adopts a special double-sided structure of blended yarn interweaving of regenerated terylene, elastic spandex, terylene regenerated short fiber and cotton fiber; one side of the double-sided structure is of a staggered corrugated three-dimensional structure, and the other side of the double-sided structure is of a flat and smooth linear straight strip structure; one part of the interweaving is plating weave of the regenerated polyester yarn and the elastic spandex, and the other part of the interweaving is blended yarn formed by blending the regenerated polyester staple fiber and the cotton fiber. According to the staggered corrugated elastic knitted fabric, the natural fibers are matched with the regenerated synthetic fibers, so that the fabric is environment-friendly, the performance of the cotton fibers is improved, and the fabric is comfortable and environment-friendly; the reasonable use of the elastic spandex enables the fabric to be dyed and the fabric to be compact after finishing, and has good stretch recovery; one side of the double-sided fabric has a staggered ripple three-dimensional effect, and the other side of the double-sided fabric has a flat and smooth linear straight strip effect, so that the fabric has strong texture and obvious texture.)

1. The staggered corrugated elastic knitted fabric is characterized in that the fabric adopts a special double-sided structure interwoven by blended yarns of regenerated terylene, elastic spandex, regenerated short terylene fibers and cotton fibers; one side of the double-sided structure is of a staggered corrugated three-dimensional structure, and the other side of the double-sided structure is of a flat and smooth linear straight strip structure; one interweaving path is plating stitch of regenerated polyester yarn and elastic spandex, the other interweaving path is blended yarn of regenerated polyester staple fiber and cotton fiber, and the weight percentage preparation proportion of the regenerated polyester staple fiber and the cotton fiber is 50-60: 40-50.

2. The interlaced corrugated elastic knit fabric of claim 1, wherein the interlaced corrugated space structure is formed by interlacing corrugated strips and spacing strips.

3. The staggered corrugated elastic knitted fabric according to claim 1, wherein the weight percentage formulation ratio of the polyester regenerated staple fibers to the cotton fibers is 55: 45.

4. a method of making a cross-corrugated elastic knit fabric according to any one of claims 1 to 3 comprising the steps of:

(1) preparing polyester regenerated staple fiber: feeding the PET polyester reclaimed material into an extruder in a screw mode, filtering, homopolymerizing and pressurizing, and injecting a melt into a spinning assembly through a melt pipeline for spinning to obtain polyester regenerated staple fibers;

(2) blending polyester regenerated staple fiber and cotton fiber: blending the polyester regenerated staple fibers with cotton fibers;

(3) yarn count matching: selecting reasonable blended yarns of regenerated polyester yarns, elastic spandex yarns, regenerated polyester staple fibers and cotton fibers through analysis;

(4) weaving the fabric: weaving the fabric into a double-sided structure with one side being a staggered corrugated solid and the other side being a flat and smooth linear straight strip;

(5) presetting: adopting water squeezing treatment for damp-heat presetting, wherein the process comprises the steps of 150-170 ℃, the vehicle speed of 20-30m/min, overfeeding of 10-30% and weft stretching of 0-8%;

(6) dyeing pretreatment: preparing a dye solution I, mixing 1-3g/L, Span-Rt detergent 1-6g/L, JFC g/0.1-1 g/L of penetrating agent by soda ash, and mixing the components according to a bath ratio of 1: 30, treating at the temperature of 90-110 ℃ for 30min, washing with hot water and cold water;

(7) dyeing: preparing a dye liquor II, mixing 0.5-6% (o.w.f) of SE medium temperature type disperse dye, 0.5-6% (o.w.f) of SD disperse type cationic dye and 0.5-6% (o.w.f) of ZJ-RH12 homogenizing agent, adjusting the pH to 4.5-5, and mixing the components according to a bath ratio of 1: 25, dyeing the composite fabric at 50-60 ℃, heating to 90-110 ℃ at the speed of 1 ℃/min, preserving heat for 10min, heating to 120-130 ℃, preserving heat for 60min, washing with water, and reducing and cleaning.

(8) Dyeing cotton: placing the fabric dyed in the step (7) into an overflow dyeing machine, and sequentially adding reactive dye, anhydrous sodium sulphate and sodium carbonate into the overflow dyeing machine for dyeing;

(9) and (4) sequentially soaping, washing, drying, finishing and shaping the fabric treated in the step (8).

5. The method for preparing the interlaced corrugated elastic knitted fabric according to claim 4, wherein the constant pressure in the filtering process in the step (1) is 8.0MPa, and two-stage filtering with a primary filter screen of 25 micrometers and a secondary filter screen of 20 micrometers is adopted.

6. The method for preparing the interlaced corrugated elastic knitted fabric as claimed in claim 4, wherein the temperature during spinning in step (1) is 270-280 ℃, the spinning speed is 2800-3000m/min, the wind speed of cooling air is 0.5m/s, the wind temperature is 26 ℃, and the relative humidity is 80-90%.

7. The method of claim 4, wherein the dyeing solution I in step (6) is prepared by mixing soda ash 2g/L, Span-Rt detergent 2-4g/L, JF penetrating agent 0.5-1 g/L.

8. The method of claim 4, wherein the dye liquor II prepared in step (7) is prepared by mixing 1.5-3% (o.w.f) of SE medium temperature type disperse dye, 1.5-3% (o.w.f) of SD disperse type cationic dye and 1.5-3% (o.w.f) of ZJ-RH12 homogenizing agent.

9. The method for preparing the interlaced corrugated elastic knitted fabric according to claim 4, wherein the cotton dyeing in the step (8) is performed at a temperature of 50 to 70 ℃ for 30 to 50 min.

10. The method for preparing interlaced corrugated elastic knitted fabric according to claim 4, wherein the temperature for the setting in step (9) is 150-160 ℃.

Technical Field

The invention relates to the field of fabric knitting, in particular to a staggered corrugated elastic knitted fabric and a preparation method thereof.

Background

With the continuous development of economy and the gradual improvement of living standard, consumers have great changes to the consumption concept of knitted clothes, and besides the performance requirements of heat preservation, ventilation, comfort and the like, the knitted clothes also pursue the fabric with strong texture, obvious texture and rich elasticity.

The polyester regenerated staple fiber is mainly prepared by treating, processing and spinning recycled waste polyester serving as a raw material, so that the recycling of PET products is realized; the pure cotton fabric has many advantages, such as good air permeability, softness and the like, but is easy to wrinkle, difficult to care and poor in elasticity, and the original advantages of the cotton fiber are kept while the performance of the pure cotton fabric is improved after the pure cotton fabric is blended with other fibers; the elastic spandex has high elasticity and good strength, so that the fabric is compact after being dyed and finished and has good stretch recovery. On the basis of conventional performance and fabric structure, elastic spandex is added as a raw material, and the elastic knitted fabric with the staggered ripple structure is developed through the innovative design of the raw material and the fabric structure.

Disclosure of Invention

The invention provides a staggered ripple elastic knitted fabric and a preparation method thereof, aiming at solving the problems that the conventional fabric cannot simultaneously ensure strong texture, obvious texture and rich elasticity.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides a staggered corrugated elastic knitted fabric, which adopts a special double-sided structure formed by interweaving regenerated terylene, elastic spandex, blended yarn of regenerated terylene staple fiber and cotton fiber; one side of the double-sided structure is of a staggered corrugated three-dimensional structure, and the other side of the double-sided structure is of a flat and smooth linear straight strip structure; one interweaving path is plating stitch of regenerated polyester yarn and elastic spandex; one path is blended yarn blended by terylene regenerated staple fiber and cotton fiber, and the weight percentage of the terylene regenerated staple fiber to the cotton fiber is 50-60: 40-50.

Further, the staggered corrugated three-dimensional structure is formed by staggering corrugated strips and parting strips.

Further preferably, the weight percentage formulation ratio of the polyester regenerated staple fibers to the cotton fibers is 55: 45.

the second aspect of the invention provides a preparation method of staggered corrugated elastic knitted fabric, which comprises the following steps:

(1) preparing polyester regenerated staple fiber: feeding the PET polyester reclaimed material into an extruder in a screw mode, filtering, homopolymerizing and pressurizing, and injecting a melt into a spinning assembly through a melt pipeline for spinning to obtain polyester regenerated staple fibers;

(2) blending polyester regenerated staple fiber and cotton fiber: blending the polyester regenerated staple fibers with cotton fibers;

(3) yarn count matching: through analysis, reasonable regenerated polyester yarns, elastic spandex yarns and blended yarns formed by blending polyester regenerated staple fibers and cotton fibers are selected;

(4) weaving the fabric: weaving the fabric into a double-sided structure with one side being a staggered corrugated solid and the other side being a flat and smooth linear straight strip;

(5) presetting: adopting water squeezing treatment for damp-heat presetting, wherein the process comprises the steps of 150-170 ℃, the vehicle speed of 20-30m/min, overfeeding of 10-30% and weft stretching of 0-8%;

(6) dyeing pretreatment: preparing a dye solution I, mixing 1-3g/L, Span-Rt detergent 1-6g/L, JFC g/0.1-1 g/L of penetrating agent by soda ash, and mixing the components according to a bath ratio of 1: 30, treating at the temperature of 90-110 ℃ for 30min, washing with hot water and cold water;

(7) dyeing: preparing a dye liquor II, mixing 0.5-6% (o.w.f) of SE medium temperature type disperse dye, 0.5-6% (o.w.f) of SD disperse type cationic dye and 0.5-6% (o.w.f) of ZJ-RH12 homogenizing agent, adjusting the pH to 4.5-5, and mixing the components according to a bath ratio of 1: 25, dyeing the composite fabric at 50-60 ℃, heating to 90-110 ℃ at the speed of 1 ℃/min, preserving heat for 10min, heating to 120-130 ℃, preserving heat for 60min, washing with water, and reducing and cleaning.

(8) Dyeing cotton: placing the fabric dyed in the step (7) into an overflow dyeing machine, and sequentially adding reactive dye, anhydrous sodium sulphate and sodium carbonate into the overflow dyeing machine for dyeing;

(9) and (4) sequentially soaping, washing, drying, finishing and shaping the fabric treated in the step (8).

Further, the constant pressure in the filtering process in the step (1) is 8.0Mpa, and two-stage filtering with a first-stage filter screen of 25 micrometers and a second-stage filter screen of 20 micrometers is adopted during filtering.

Further, the temperature during spinning in the step (1) is 270-280 ℃, the spinning speed is 2800-3000m/min, the wind speed of cooling air blowing is 0.5m/s, the wind temperature is 26 ℃, and the relative humidity is 80-90%.

Furthermore, in the step (6), the dye liquor I is formed by mixing 2g/L, Span-Rt detergent 2-4g/L, JFC penetrant 0.5-1g/L of soda ash.

Further, the dye liquor II prepared in the step (7) is formed by mixing 1.5-3% (o.w.f) of SE medium-temperature disperse dye, 1.5-3% (o.w.f) of SD disperse cationic dye and 1.5-3% (o.w.f) of ZJ-RH12 homogenizing agent.

Further, the cotton dyeing condition in the step (8) is that the temperature is 50-70 ℃ and the time is 30-50 min.

Further, the temperature for the shaping in the step (9) is 150-160 ℃.

Compared with the prior art, the invention has the following advantages:

according to the staggered corrugated elastic knitted fabric, the natural fibers are matched with the regenerated synthetic fibers, so that the fabric is environment-friendly, the performance of the cotton fibers is improved, and the fabric is comfortable and environment-friendly; the reasonable use of the elastic spandex enables the fabric to be dyed and the fabric to be compact after finishing, and has good stretch recovery; one side of the double-sided fabric has a staggered ripple three-dimensional effect, and the other side of the double-sided fabric has a flat and smooth linear straight strip effect, so that the fabric has strong texture and obvious texture; the preparation method adopts multi-section dyeing to ensure that the fabric is uniformly and fully dyed, utilizes a pre-setting process to ensure that the fabric is properly shrunk and the internal stress of the fabric is reduced before dyeing, and then avoids the problem of uneven dyeing caused by shrinkage difference of the fabric by selecting a proper dyeing process.

Detailed Description

The present invention will be described in detail and specifically with reference to the following examples to facilitate better understanding of the present invention, but the following examples do not limit the scope of the present invention.