阅读说明：本技术 改善再生涤纶面料正面起球的方法及磨毛装置 (Method for improving pilling on front surface of regenerated polyester fabric and sanding device ) 是由 任海波 曾强书 林杨总 于 2020-06-17 设计创作，主要内容包括：本发明提供了一种改善再生涤纶面料正面起球的方法及磨毛装置,属于纺织技术领域。本方法通过对面料依次完成如下工序实现：组缸-翻布-染涤-出缸对色-光剖-定干-正面磨毛-加助剂定型-反面拉毛-反面梳毛-反面剪毛-环烘-最终定型-物测-成检-光坯入库,通过在定干之后、加入助剂定型之前进行正面轻磨毛,使面料的正面起球等级由二级提升至三级；通过负压的方式对面料进行压紧,提供轻微的压紧力以适配轻微磨毛。本发明具有成品不容易起球等优点。(The invention provides a method for improving pilling on the front side of a regenerated polyester fabric and a sanding device, and belongs to the technical field of textiles. The method is realized by sequentially completing the following procedures on the fabric: assembling a cylinder, turning cloth, dyeing and washing, discharging from the cylinder, carrying out color matching, polishing, drying, grinding the front side, adding an auxiliary agent for shaping, carrying out reverse side napping, carding the reverse side, shearing the reverse side, drying in a circular manner, finally shaping, detecting the object, detecting the finished product, and storing a polished blank in a warehouse, wherein the front side is lightly ground after drying and before adding the auxiliary agent for shaping, so that the front pilling grade of the fabric is improved from the second grade to the third grade; the fabric is compressed in a negative pressure mode, and a slight pressing force is provided to adapt to slight sanding. The invention has the advantages that the finished product is not easy to pilling and the like.)

1. The method for improving the pilling on the front side of the regenerated polyester fabric is characterized in that the regenerated polyester fabric comprises 150D/48F regenerated polyester and 150D/144F regenerated polyester velvet, the back side of the regenerated polyester fabric is a looped pile side, and the front side of the regenerated polyester fabric is a flat side, and the method is realized by sequentially completing the following processes on the fabric: the method comprises the steps of cylinder assembling, cloth turning, dyeing and washing, cylinder discharging, color matching, optical sectioning, drying, front sanding, auxiliary agent adding and shaping, back napping, back carding, back shearing, circular drying, final shaping, physical testing, finished product detection, blank polishing and warehousing, wherein the front sanding is performed after drying and before auxiliary agent adding and shaping, so that the front pilling grade of the fabric is improved from the second grade to the third grade.

2. A slight sanding device for improving the pilling on the front surface of the regenerated polyester fabric in claim 1 is characterized by comprising a traction roller (1) and a sanding roller (2), wherein the traction roller (1) and the sanding roller (2) are pulled by a belt (3), the regenerated polyester fabric sequentially passes through the lower roller surface of the sanding roller (2) and the upper roller surface of the traction roller (1), the sanding roller (2) comprises a roller (21), a fixed shaft (22) and a negative pressure source, two ends of the roller (21) are connected with the fixed shaft (22) through bearings, a hollow ventilation cavity (23) is arranged in the fixed shaft (22), the fixed shaft (22) is provided with a notch (24) which penetrates through an air cavity (23) and the outer wall surface of the fixed shaft (22), and the notch (24) corresponds to the wrapping section of the regenerated polyester fabric on the roller (21), a plurality of air grooves (25) are uniformly arranged on the roller (21) in the circumferential direction, and the air grooves (25) are in a strip shape matched with the width of the regenerated polyester fabric; the belt (3) is connected between the traction roller (1) and the roller (21).

3. A sanding device according to claim 2, characterized in that the inner ends of the air grooves (25) are inclined in the direction of travel of the drum (21).

4. A sanding device according to claim 2 or 3, characterized in that the peripheral surface of the pulling roll (1) is roughened and that the peripheral surface of the roll (21) between adjacent air channels (25) is provided with densely packed abrasive filaments (26).

Technical Field

The invention belongs to the technical field of spinning, and relates to a method for improving front pilling of a regenerated polyester fabric and a sanding device.

Background

In the era of increasingly deficient resources and increasingly strong environmental awareness of people, the regenerated polyester fabric is increasingly favored by China and countries developed in Europe and America as a novel environment-friendly regenerated fabric. The regenerated terylene fabric yarn is extracted from waste mineral water bottles and cola bottles, is commonly called cola bottle environment-friendly cloth, and is widely used in camisoles, skirts, children's garments, pajamas, cheongsam, home textiles and the like. The quality of the regenerated polyester fabric is determined by the manufacturing method of the regenerated polyester fabric, and compared with common polyester, the regenerated polyester fabric is polyester staple fiber and has poorer strength. Therefore, when the regenerated polyester fabric is subjected to procedures such as dye vat dyeing and the like and is worn later, due to friction, cloth-surface fibers are easy to fluff, have different lengths, and are easy to knot and wind and form balls.

The above problems are caused because the regenerated polyester fabric has a poor strength and is likely to be fluffed and pilling due to friction.

Disclosure of Invention

The invention aims to provide a method for improving the front pilling of a regenerated polyester fabric aiming at the problems in the prior art, and the technical problem to be solved by the invention is how to improve the front pilling grade of the fabric by slightly grinding the front surface after drying and before adding an auxiliary agent for shaping, thereby improving the problem that the regenerated polyester fabric is easy to fluff.

The purpose of the invention can be realized by the following technical scheme: the method for improving the pilling on the front side of the regenerated polyester fabric is characterized in that the regenerated polyester fabric comprises 150D/48F regenerated polyester and 150D/144F regenerated polyester velvet, the back side of the regenerated polyester fabric is a looped pile side, and the front side of the regenerated polyester fabric is a flat side, and the method is realized by sequentially completing the following processes on the fabric: the method comprises the steps of cylinder assembling, cloth turning, dyeing and washing, cylinder discharging, color matching, optical sectioning, drying, front sanding, auxiliary agent adding and shaping, back napping, back carding, back shearing, circular drying, final shaping, physical testing, finished product detection, blank polishing and warehousing, wherein the front sanding is performed after drying and before auxiliary agent adding and shaping, so that the front pilling grade of the fabric is improved from the second grade to the third grade.

The flow before improvement is that the group cylinder → cloth turning → dyeing and washing → cylinder discharging and color matching → optical cutting → dry fixing → auxiliary agent adding and shaping → reverse side napping → reverse side combing → reverse side shearing → circular drying → final shaping → physical testing → finished product inspection → optical blank warehousing; the improved process is that the combined cylinder → cloth turning → dyeing and washing → cylinder discharging and color matching → optical cutting → dry fixing → front sanding → shaping by adding auxiliary agent → back napping → back shearing → circular drying → final shaping → physical testing → finished inspection → optical blank warehousing. The improved front pilling can reach level 3, and the pilling is not easy to occur and reaches the customer standard.

After the front surface of the regenerated polyester fabric is sanded and ground once, the cloth cover fluff is broken and falls off, and short and uniform fluff is generated, and after the same test method and machine test, the pilling grade can reach grade 3, which is improved by one grade compared with that before sanding. The strength of the regenerated polyester fabric is poor compared with that of common polyester, long miscellaneous hair on a cloth surface can be removed only by slight sanding, the sanding pressure on grey cloth during sanding is particularly controlled, weight loss and quality loss caused by transitional sanding are avoided, the sanding process sets light sanding, the cloth surface quality is not affected, the pilling result is improved, and the customer requirements are met.

The slight sanding device for the regenerated polyester fabric is characterized by comprising a traction roller and a sanding roller, wherein the traction roller and the sanding roller are pulled through a belt, the regenerated polyester fabric sequentially passes through the lower roller surface of the sanding roller and the upper roller surface of the traction roller, the sanding roller comprises a roller, a fixed shaft and a negative pressure source, two ends of the roller are connected with the fixed shaft through bearings, a hollow ventilation cavity is formed in the fixed shaft, a notch penetrating through the air cavity and the outer wall surface of the fixed shaft is formed in the fixed shaft, the notch corresponds to an enclosed section of the regenerated polyester fabric on the roller, a plurality of ventilation grooves are uniformly formed in the circumferential direction of the roller, and the ventilation grooves are in a strip shape matched with the width of the regenerated polyester fabric; the belt is connected between the traction roller and the roller.

Further, the inner end of the vent groove inclines towards the running direction of the roller.

Furthermore, the circumferential surface of the traction roller is a rough surface, and densely distributed abrasive wires are arranged on the circumferential surface of the roller between the adjacent air grooves.

Regenerated polyester fabric loops through the lower part roll surface of roller that grinds the hair roller and the upper portion roll surface of carry over pinch rolls, the carry over pinch rolls is for having the rough surface roller of great frictional resistance to the surface fabric, and the cladding radian with it is great, the surface fabric is by the in-process of pulling to carry over pinch rolls formation synchronous rotation drive power, thereby drive the roller syntropy of smooth surface, make roller and surface fabric with opposite linear velocity synchronous operation, thereby make each air channel on the roller circulate reciprocal surface fabric of pressing close to, the air channel that corresponds with the breach can be under the effect of negative pressure, produce the adsorption affinity on the surface fabric that the air channel corresponds, one of its effects is: the surface of the fabric to be sanded has certain pressure with a roller under the condition of not using a press roller, so that friction with certain strength can be formed on the fabric when the abrasive wires and the fabric move relatively, a negative pressure source can be an air pump for generating air suction, and the pressing force between the fabric and the abrasive wires can be changed by air pressure change, but the change is very small, because the abrasive wire area between the vent groove and the fabric allows air flow to pass through and the fabric also has certain permeability, namely, the negative pressure acts on the fabric, so that the pressure generated by the fabric and the abrasive wires is always small, the fabric is lightly sanded, the problem that the quality of the regenerated polyester fabric is influenced by heavy sanding is solved, and the problem that the sanding pressing force is difficult to control is also solved; the second function is that: the air flow generated by negative pressure recovers and cleans the flock generated by sanding on the surface of the fabric; the third function is: in the slight sanding process of the regenerated polyester fabric, long miscellaneous hairs on the fabric need to be removed, most of the long miscellaneous hairs of the fabric are curled, the long miscellaneous hairs cannot be stretched due to direct sanding, and further the expected sanding effect cannot be achieved.

The fixed shaft is fixed on the frame, and the position of the notch is always unchanged, namely corresponding to the wrapping position of the fabric and the roller.

Drawings

Fig. 1 is a schematic structural view of the sanding device.

FIG. 2 is a cross-sectional view of a sanding roller.

FIG. 3 is a longitudinal cross-sectional view of the sanding roller.

In the figure, 1, a pull roll; 2. grinding a roughing roller; 21. a roller; 22. a fixed shaft; 23. a vent lumen; 24. a notch; 25. a vent channel; 26. a wire of abrasive material; 3. a belt.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

The regenerated polyester fabric comprises the components of 150D/48F regenerated polyester and 150D/144F regenerated polyester velvet, the back surface of the regenerated polyester fabric is a looped pile surface, and the front surface of the regenerated polyester fabric is a flat surface, and the method is realized by sequentially completing the following processes on the fabric: the method comprises the steps of cylinder assembling, cloth turning, dyeing and washing, cylinder discharging, color matching, optical sectioning, drying, front sanding, auxiliary agent adding and shaping, back napping, back carding, back shearing, circular drying, final shaping, physical testing, finished product detection, blank polishing and warehousing, wherein the front sanding is performed after drying and before auxiliary agent adding and shaping, so that the front pilling grade of the fabric is improved from the second grade to the third grade.

The flow before improvement is that the group cylinder → cloth turning → dyeing and washing → cylinder discharging and color matching → optical cutting → dry fixing → auxiliary agent adding and shaping → reverse side napping → reverse side combing → reverse side shearing → circular drying → final shaping → physical testing → finished product inspection → optical blank warehousing; the improved process is that the combined cylinder → cloth turning → dyeing and washing → cylinder discharging and color matching → optical cutting → dry fixing → front sanding → shaping by adding auxiliary agent → back napping → back shearing → circular drying → final shaping → physical testing → finished inspection → optical blank warehousing. The improved front pilling can reach level 3, and the pilling is not easy to occur and reaches the customer standard.

After the front surface of the regenerated polyester fabric is sanded and ground once, the cloth cover fluff is broken and falls off, and short and uniform fluff is generated, and after the same test method and machine test, the pilling grade can reach grade 3, which is improved by one grade compared with that before sanding. The strength of the regenerated polyester fabric is poor compared with that of common polyester, long miscellaneous hair on a cloth surface can be removed only by slight sanding, the sanding pressure on grey cloth during sanding is particularly controlled, weight loss and quality loss caused by transitional sanding are avoided, the sanding process sets light sanding, the cloth surface quality is not affected, the pilling result is improved, and the customer requirements are met.

As shown in fig. 1, 2 and 3, the light sanding device for the regenerated polyester fabric comprises a traction roller 1 and a sanding roller 2, the traction roller 1 and the sanding roller 2 are pulled by a belt 3, the regenerated polyester fabric sequentially passes through the lower roller surface of the sanding roller 2 and the upper roller surface of the traction roller 1, the sanding roller 2 comprises a roller 21, a fixed shaft 22 and a negative pressure source, two ends of the roller 21 are connected with the fixed shaft 22 through bearings, a hollow vent cavity 23 is arranged in the fixed shaft 22, the fixed shaft 22 is provided with a notch 24 penetrating through an air cavity 23 and the outer wall surface of the fixed shaft 22, the notch 24 corresponds to the wrapping section of the regenerated polyester fabric on the roller 21, a plurality of vent grooves 25 are uniformly arranged on the roller 21 in the circumferential direction, and the vent grooves 25 are in a strip shape matched with the width of the regenerated polyester fabric; the belt 3 is connected between the pulling roll 1 and the drum 21.

The inner end of the air channel 25 is inclined to the running direction of the roller 21.

The peripheral surface of the traction roller 1 is rough, and abrasive wires 26 are densely distributed on the peripheral surface of the roller 21 between the adjacent air grooves 25.

Regeneration dacron surface fabric loops through the lower part roll surface of roller of sanding roller 2 and the upper portion roll surface of carry over pinch rolls 1, carry over pinch rolls 1 is the rough surface roller that has great frictional resistance to the surface fabric, and the cladding radian with it is great, the surface fabric is by the in-process of pulling to carry over pinch rolls 1 formation synchronous rotatory drive power, thereby drive the roller 21 syntropy rotation of smooth surface, make roller 21 and surface fabric with opposite linear velocity synchronous operation, thereby make each air channel 25 circulation reciprocating on the roller 21 press close to the surface fabric surface, air channel 25 that corresponds with breach 24 can be under the effect of negative pressure, produce the adsorption affinity on the surface fabric that air channel 25 corresponds, one of its effects is: the surface of the fabric to be sanded has certain pressure with the roller 21 under the condition of not using a press roller, so that the abrasive wires 26 and the fabric can form friction with certain strength when moving relatively, the negative pressure source can be an air pump generating air suction, the pressing force between the fabric and the abrasive wires 26 can be changed by air pressure change, but the change is very small, because the area of the abrasive wires 26 between the vent grooves 25 and the fabric is allowed to pass through, the fabric also has certain permeability, namely, the negative pressure acts on the fabric, so that the pressure generated by the fabric and the abrasive wires 26 is always small, the fabric is lightly sanded, the problem that the quality of the regenerated polyester fabric is influenced by heavy sanding is solved, and the problem that the sanding pressing force is difficult to control is also overcome; the second function is that: the air flow generated by negative pressure recovers and cleans the flock generated by sanding on the surface of the fabric; the third function is: in the slight sanding process of the regenerated polyester fabric, long miscellaneous hairs on the fabric need to be removed, most of the long miscellaneous hairs of the fabric are curled, direct sanding cannot ensure the long miscellaneous hairs to be stretched, and further cannot achieve the expected sanding effect.

The fixed shaft is fixed on the frame, and the position of the gap 24 is always unchanged, namely corresponding to the wrapping position of the fabric and the roller 21.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.