阅读说明：本技术 涤/氨三明治抗菌面料及其染整方法 (Polyester/ammonia sandwich antibacterial fabric and dyeing and finishing method thereof ) 是由 孙伟 左凯杰 臧燕鹏 王存山 赵航 黄庄芳容 于 2019-10-31 设计创作，主要内容包括：本发明公开了一种涤/氨三明治抗菌面料及其染整方法,它是由上面料层、下面料层以及连接层通过纬编双面机台织造而成,连接层为20D-70D的涤纶MOLO纱,上面料层由30D-50D的普通涤纶纱与20D的氨纶交织而成,下面料层由30D-50D的异型截面涤纶纱、30D-50D的铜纤维抗菌纱以及20D的氨纶交织而成。染整方法包括预定型、染色、成品定型以及在预定型之前直接过缩炼机,除油配方如下：2～6g/L高效除油剂、1～3g/L烧碱、1～3g/L氨纶除油剂。本发明的涤/氨三明治抗菌面料不但具有保暖、快干、抗菌功能,而且回弹性良好、手感丰厚、舒适,染整过程中可以有效避免折痕的产生,各项牢度优良。(The invention discloses a polyester/ammonia sandwich antibacterial fabric and a dyeing and finishing method thereof, wherein the polyester/ammonia sandwich antibacterial fabric is formed by weaving an upper fabric layer, a lower fabric layer and a connecting layer through a weft knitting double-sided machine, the connecting layer is 20D-70D polyester MOLO yarn, the upper fabric layer is formed by interweaving 30D-50D common polyester yarn and 20D spandex, and the lower fabric layer is formed by interweaving 30D-50D profiled cross-section polyester yarn, 30D-50D copper fiber antibacterial yarn and 20D spandex. The dyeing and finishing method comprises the steps of pre-setting, dyeing, finished product setting and direct refining before pre-setting, and the oil removing formula comprises the following steps: 2-6 g/L of high-efficiency oil removing agent, 1-3 g/L of caustic soda and 1-3 g/L of spandex oil removing agent. The polyester/ammonia sandwich antibacterial fabric has the functions of keeping warm, quick drying and resisting bacteria, and has the advantages of good rebound resilience, rich and comfortable hand feeling, capability of effectively avoiding crease marks in the dyeing and finishing process and excellent fastness.)

1. The polyester/ammonia sandwich antibacterial fabric is characterized in that: the fabric is woven by an upper fabric layer, a lower fabric layer and a connecting layer through a weft knitting double-sided machine;

the connecting layer is 20D-70D of terylene MOLO yarn;

the upper fabric layer is formed by interweaving 30D-50D common polyester yarns and 20D spandex;

the lower fabric layer is formed by interweaving 30D-50D profiled cross-section polyester yarns, 30D-50D copper fiber antibacterial yarns and 20D spandex.

2. The antibacterial polyester/ammonia sandwich fabric according to claim 1, wherein: in the polyester/ammonia sandwich antibacterial fabric, the dosage of polyester MOLO yarn is 20-30 wt%; the using amount of 30D-50D common polyester yarns in the upper fabric layer is 30-40 wt%; the using amount of the 30D-50D special-shaped cross-section polyester yarns in the lower fabric layer is 12-20 wt%, and the using amount of the 30D-50D copper fiber antibacterial yarns is 12-20 wt%; the usage amount of the 20D spandex in the upper fabric layer and the lower fabric layer is 4-8 wt%.

3. The antibacterial polyester/ammonia sandwich fabric according to claim 1 or 2, wherein: the polyester yarn with the special-shaped section is a C-shaped section, a Y-shaped section or a + shaped section.

4. The antibacterial polyester/ammonia sandwich fabric according to claim 1, 2 or 3, wherein: the thickness of the polyester/ammonia sandwich antibacterial fabric is 4-10 mm.

5. A dyeing and finishing method of the polyester/ammonia sandwich antibacterial fabric of one of claims 1 to 4, comprising pre-setting, dyeing and finished product setting; the method is characterized in that: before presetting, the method also comprises oil removal of a refiner.

6. The dyeing and finishing method of the polyester/ammonia sandwich antibacterial fabric according to claim 5, characterized in that: the oil removing formula of the refiner is as follows: 2-6 g/L of high-efficiency oil removing agent, 1-3 g/L of caustic soda and 1-3 g/L of spandex oil removing agent.

7. The dyeing and finishing method of the polyester/ammonia sandwich antibacterial fabric according to claim 5 or 6, characterized in that: before oil removal of the refiner, in the process of grey cloth transportation and storage, each piece of grey cloth cannot be overlapped in a crossed manner and needs to be placed in a vertical column manner; and after the oil is removed by the refiner, a cloth vehicle is stacked for no more than 4 pieces and needs to be pre-shaped immediately.

8. The dyeing and finishing method for polyester/ammonia sandwich antibacterial fabric according to one of claims 5 to 7, characterized in that: the presetting temperature is 190-205 ℃, and the time is 1-2.5 min.

9. The dyeing and finishing method for polyester/ammonia sandwich antibacterial fabric according to one of claims 5 to 7, characterized in that: the dyeing temperature is 120-150 ℃, and the dyeing time is 45-90 min.

10. The dyeing and finishing method for polyester/ammonia sandwich antibacterial fabric according to one of claims 5 to 7, characterized in that: the temperature for shaping the finished product is 130-160 ℃, and the time is 1-2.5 min.

Technical Field

The invention belongs to the technical field of textile printing and dyeing, and particularly relates to a polyester/ammonia sandwich antibacterial fabric and a dyeing and finishing method thereof.

Background

The sandwich fabric consists of an upper surface, a middle surface and a lower surface. The surface is usually a mesh design, the middle layer is MOLO yarn connecting the surface and the bottom surface, which is usually a tightly woven flat plate, commonly known as a "sandwich". The dense net layer is arranged under the fabric, so that the net on the surface is not deformed too much, and the fastness and the color degree of the fabric are enhanced. The net effect enables the fabric to have more modern sense and sporty sense net effect. It is made up by using high-molecular synthetic fibre and adopting one-step weaving process by using precision machine table, and is durable in use, belonging to the fine product in the warp-knitted fabric.

However, the common warp-knitted sandwich fabric has large meshes on the surface, poor fluffy feeling and unsatisfactory resilience, and the surface is easy to collect ash, and the front and back sides of the common warp-knitted sandwich fabric often turn over silk, so that the common warp-knitted sandwich fabric is not suitable for being used as a garment fabric.

In addition, the conventional sandwich fabric has the defects that the MOLO yarns in the middle are often irregularly laid in the production process, so that the fluffy hand feeling of the fabric is influenced, and the cloth cover at the laid positions of the MOLO yarns forms dark shadows to influence the quality of the cloth cover; and for the polyester/ammonia sandwich fabric, the problem that spandex is easy to melt is also existed.

Disclosure of Invention

The invention aims to solve the problems and provides a polyester/ammonia sandwich antibacterial fabric and a dyeing and finishing method thereof.

The technical scheme for realizing the purpose of the invention is as follows: a terylene/ammonia sandwich antibacterial fabric is woven by an upper fabric layer, a lower fabric layer and a connecting layer through a weft knitting double-sided machine.

The connecting layer is 20D-70D of terylene MOLO yarn.

Too thin polyester MOLO yarns can affect the shape retention and resilience of the fabric, and too thick polyester MOLO yarns can affect the hand feeling of the fabric.

The upper fabric layer is formed by interweaving 30D-50D common polyester yarns and 20D spandex.

The lower fabric layer is formed by interweaving 30D-50D profiled cross-section polyester yarns, 30D-50D copper fiber antibacterial yarns and 20D spandex.

In the polyester/ammonia sandwich antibacterial fabric, the dosage of polyester MOLO yarn is 20-30 wt%; the using amount of 30D-50D common polyester yarns in the upper fabric layer is 30-40 wt%; the using amount of the 30D-50D special-shaped cross-section polyester yarns in the lower fabric layer is 12-20 wt%, and the using amount of the 30D-50D copper fiber antibacterial yarns is 12-20 wt%; the usage amount of the 20D spandex in the upper fabric layer and the lower fabric layer is 4-8 wt%.

The polyester yarn with the special-shaped section is a C-shaped section, a Y-shaped section or a + shaped section.

The copper fiber antibacterial yarn is prepared by implanting polyester fiber into copper nanocrystallized polyester fiber, and is also called as polyester copper ion antibacterial fiber.

The thickness of the polyester/ammonia sandwich antibacterial fabric is more than or equal to 3mm, and preferably 4-10 mm.

The dyeing and finishing method of the polyester/ammonia sandwich antibacterial fabric comprises the steps of presetting, dyeing and finished product setting.

In order to solve the problem of lodging of the polyester MOLO yarns, firstly, in the process of transporting and storing grey cloth, each piece of grey cloth cannot be overlapped in a crossed mode, and the grey cloth needs to be placed in a vertical column mode; then, directly passing through a refiner before presetting (namely after cloth loosening), so that the fabric is deoiled in advance and the crimp tension is fully eliminated, the polyester MOLO yarn is loosened and contracted, and the problem of lodging of the polyester MOLO yarn is avoided; at the end of the refiner, a cloth car is stacked no more than 4 pieces and needs to be pre-shaped immediately to prevent embossing and watermarking.

In order to further solve the problem of fusing of spandex, the oil removing formula of the refiner is as follows: 2-6 g/L of high-efficiency oil removing agent, 1-3 g/L of caustic soda and 1-3 g/L of spandex oil removing agent.

The presetting temperature is 190-205 ℃, and the time is 1-2.5 min.

The dyeing temperature is 120-150 ℃, and the dyeing time is 45-90 min.

The temperature for shaping the finished product is 130-160 ℃, and the time is 1-2.5 min.

The invention has the following positive effects:

(1) the lower fabric layer of the terylene/ammonia sandwich antibacterial fabric adopts the polyester yarn with the special-shaped cross section, so that the skin-adhering surface of the fabric has the functions of moisture absorption and quick drying, and moisture generated on the surface of a human body can be led out of the human body through the grooves with the special-shaped cross section, so that the skin of the human body is kept dry and comfortable.

(2) According to the polyester/ammonia sandwich antibacterial fabric, the lower fabric layer is made of the copper fiber antibacterial yarns, so that the fabric has continuous and efficient antibacterial and bacteriostatic effects, and the bacteriostatic rate is still 98% after the fabric is washed for 100 times.

(3) According to the invention, the polyester MOLO yarn is adopted to replace the traditional cotton MOLO yarn, so that the fabric has excellent resilience.

(4) According to the invention, the fineness of the yarns used in the upper material layer and the lower material layer is controlled below 50D, and the thickness of the fabric is controlled within 3-10 mm, so that the fabric has comfortable hand feeling and does not lack bones.

(5) According to the invention, the problems of poor fluffy feeling, shadow and the like caused by MOLO yarn lodging are effectively solved by technical means of oil removal of a refiner and the like before presetting, and meanwhile, the problem that spandex is easy to fuse during presetting is solved by adding a special oil removal agent for spandex in an oil removal formula.

(6) The polyester/ammonia sandwich antibacterial fabric has the functions of keeping warm, quick drying and resisting bacteria, and has the advantages of good rebound resilience, rich and comfortable hand feeling, capability of effectively avoiding crease marks in the dyeing and finishing process and excellent fastness.

Drawings

FIG. 1 is a flow chart of the dyeing process of example 1.

Detailed Description

(example 1)

The terylene/ammonia sandwich antibacterial fabric is formed by weaving an upper fabric layer, a lower fabric layer and a connecting layer through a weft knitting double-sided machine.

The upper fabric layer is formed by interweaving 50D common polyester yarns and 20D spandex.

The connecting layer is 30D terylene MOLO yarn (also common terylene yarn).

The lower fabric layer is formed by interweaving 50D polyester yarn with a Y-shaped cross section, 50D copper fiber antibacterial yarn (from Zhejiang silver yoga new materials Co., Ltd.) and 20D spandex.

The thickness of the polyester/ammonia sandwich antibacterial fabric of the embodiment is 7 mm.

In the polyester/ammonia sandwich antibacterial fabric of the embodiment: the using amount of 50D common polyester yarns in the upper fabric layer is 31.90wt%, and the using amount of 20D spandex is 5 wt%; the dosage of the terylene MOLO yarn is 26.2 wt%; the dosage of 50D Y-shaped section polyester yarn in the lower fabric layer is 15.95wt%, the dosage of 50D copper fiber antibacterial yarn is 15.95wt%, and the dosage of 20D spandex is 5 wt%.

The weaving triangle configuration of the weft knitting double-sided machine table is shown in table 1.

TABLE 1

Wherein, V-shaped represents the needle dial needle looping, inverted V represents the needle cylinder needle looping, ∪ represents the needle dial needle tucking, ∩ represents the needle dial needle tucking, and-represents the non-knitting.

The dyeing and finishing method of the polyester/ammonia sandwich antibacterial fabric provided by the embodiment comprises the following steps:

① firstly, during the transportation and storage of the grey cloth, each piece of grey cloth must not be cross-laminated and should be placed in a column, then the cloth is directly passed through a milling machine after being loosened, so that the surface material is degreased in advance and the crimp tension is eliminated fully, the polyester MOLO yarn is loosened and shrunk, the problem of lodging of the polyester MOLO yarn is avoided, and finally, when the fabric is taken off the milling machine, a cloth vehicle is stacked by no more than 4 pieces and needs to be pre-shaped immediately to prevent imprinting and watermarking.

The oil removing formula of the refiner is as follows: 4g/L of high-efficiency oil removing agent HT-ECO, 2g/L of caustic soda and 2g/L of spandex oil removing agent ST-1050.

The high-efficiency oil removing agent HT-ECO is from Dewang chemical industry Co.

The spandex oil remover ST-1050 is from Shih chemical Co., Ltd.

② pre-setting at 195 deg.C for 2 min.

During presetting, attention needs to be paid to adjusting the tension of the machine.

③ dyeing, adding the three auxiliary agents, uniformly running, adding disperse dye at constant speed, controlling the adding time at 10min, finally adjusting the pH with glacial acetic acid, controlling the heating rate in a key time period (firstly heating to 80 ℃ at a heating rate of 3 ℃/min, then heating to 100 ℃ at a heating rate of 1.5 ℃/min, and finally heating to 130 ℃ at a heating rate of 2 ℃/min), and keeping the temperature at 130 ℃ for 60 min.

After dyeing, acid reduction washing (95 ℃ for 20 min), alkaline reduction washing (85 ℃ for 20 min), water washing and acid adjustment are sequentially carried out.

It should be noted that: the deep dyeing is carried out by selecting high-fastness dye, and the dyeing machine preferably has a large nozzle and a large bath ratio. In the dyeing process, attention should be paid to whether the rope-shaped folding position of the fabric is changed along with the running of the fabric, if the rope-shaped folding position of the fabric is not changed, dyeing creases are easily caused, blank fixing is needed, then edge binding is firstly carried out, and then dyeing is carried out.

The specific dyeing process is shown in figure 1.

The dye liquor formulation is shown in table 2.

TABLE 2

Components	Dosage of
		Refining emulsifier SEM-35N	2g/L
Antioxidant PNR	1g/L
		Low-foam high-temperature dispersant HT-HTA	1g/L
Disperse dye Mekicron Yellow 6GSL	0.18%
		Disperse dye Neotron Rubine HFW-4B	0.14%
Disperse dye Mekicron Navy Blue WSP	0.70%
		Disperse dye Neotron Navy HFW-EFR	0.44%
Disperse dye Neotron Navy ECO300%	0.70%
		Glacial acetic acid	0.7g/L

In table 2: the refining emulsifier SEM-35N is from Jiangsu Gekko Swinhonis Co., Ltd; antioxidant PNR was sourced from Desida (Shanghai) trade, Inc.; the low-foam high-temperature dispersant HT-HTA is from Suzhou Heqin trade company; the disperse dyes Mekicron Yellow 6GSL and Mekicron Navy Blue WSP are both from Dewang chemical industry Co., Ltd, Jiangsu; the disperse dyes Neotron Rubine HFW-4B, Neotron Navy HFW-EFR and Neotron Navy ECO300% were all from Shaoxing Shangyu Co.

④ shaping the final product at 130 deg.C for 1.5 min.

The cloth surface is required to be kept smooth when the finished product is shaped, and large shrinkage is avoided.

And after the finished product is discharged from the machine, the cloth is inspected and packaged immediately, so that cloth cover overprinting caused by long-time heavy pressing is avoided.