TWI714133B - Manufacturing method of knitted fabric and structure thereof - Google Patents

Abstract

A manufacturing method of knitted fabric includes a knitting step, a dyeing step and a setting step. In the knitting step, a knitting machine knits a ground yarn assembly and a jacquard yarn assembly into a grey cloth, and the grey cloth is a Jacquard fabric. In the dyeing step, the grey cloth is dyed. In the setting step, the dyed grey cloth is shaped for obtaining a knitted fabric. A material of the ground yarn assembly and a material of the jacquard yarn assembly are textured yarn. Therefore, according to the aforementioned method, a pre-setting step of the conventional process can be reduced, and the manufacturing time can be shortened. The manufacturing cost can also be greatly reduced, and the production efficiency of the knitted fabric can be improved.

Description

Manufacturing method and structure of knitted fabric

The present invention relates to a method for manufacturing knitted fabric and its structure, and in particular to a method for manufacturing knitted fabric and its structure, which can reduce the number of processes, reduce costs, and shorten the manufacturing time.

In the traditional dyeing and finishing process of manufacturing elastic fabrics, in order to make the fabrics have good resilience, elastic fibers are often selected or added for weaving, such as spandex bare rubber yarn, and pre-determined steps are required before dyeing and finishing operations. The treatment to make the elastic fabric obtain good dimensional stability and achieve a smooth fabric appearance.

However, the high temperature required for the pre-sizing process will affect and destroy the state of the yarn, and then affect the feel of the knitted fabric, making the knitted fabric stiff and poor wearing comfort. In addition, the pre-processing has a long process and high energy consumption, which reduces the manufacturing efficiency of elastic knitted fabrics and also increases additional expenses and costs.

Therefore, how to make knitted fabrics with elastic properties and improve its manufacturing efficiency has become the goal of the joint efforts of related industries.

The present invention provides a method for manufacturing knitted fabric and its structure. The knitted fabric structure of the present invention does not contain any elastic yarns by omitting predetermined steps in the conventional dyeing, finishing and weaving process, thereby making the knitted fabric of the present invention The fabric structure still maintains good elasticity and resilience, thereby improving the overall manufacturing efficiency of knitted fabrics.

According to one aspect of the present invention, a method for manufacturing a knitted fabric is provided, which includes a weaving step, a dyeing step, and a setting step. The weaving step is to use a knitting machine to knit a ground carded yarn structure and a jacquard yarn structure into a green fabric, and the green fabric is a jacquard fabric. The dyeing step is to dye the fabric. The setting step is to size and shape the dyed fabric to obtain a knitted fabric, wherein the material of the ground card yarn structure and the material of the jacquard yarn structure are processed silk.

According to the method for manufacturing a knitted fabric of the aforementioned aspect, the processed yarn may be an inelastic fiber.

According to the method for manufacturing a knitted fabric of the aforementioned aspect, the processed yarn may be a polyethylene terephthalate (PET) fiber or a cationic dyeable polyester (CDP) fiber.

According to the method for manufacturing a knitted fabric of the aforementioned aspect, in the weaving step, the knitting machine can knit the ground carded yarn structure and the jacquard yarn structure into a green fabric in a warp knitting manner.

According to the method for manufacturing a knitted fabric of the aforementioned aspect, in the weaving step, the knitting machine can knit the ground carded yarn structure and the jacquard yarn structure into a green fabric through a single needle bed structure.

According to the method for manufacturing a knitted fabric of the aforementioned aspect, in the weaving step, the knitting machine can knit the ground carded yarn structure and the jacquard yarn structure into a green fabric through a double needle bed structure.

According to the method for manufacturing a knitted fabric of the aforementioned aspect, the dyeing step dyes the fabric through a dyeing temperature, and the dyeing temperature can be 98°C to 135°C.

According to the manufacturing method of the knitted fabric of the aforementioned aspect, the dyeing step is completed after a dyeing time, and the dyeing time can be 4 hours to 5 hours.

According to the method of manufacturing a knitted fabric of the aforementioned aspect, the fabric is sized by a predetermined temperature in the setting step, and the predetermined temperature can be 140°C to 160°C.

According to the manufacturing method of the knitted fabric of the aforementioned aspect, in the setting step, the embryonic fabric is dimensioned through an overfeeding speed, and the overfeeding speed can be 15m/min to 25m/min.

According to the manufacturing method of the knitted fabric of the aforementioned aspect, the setting step can be maintained for 60 to 90 seconds.

According to the manufacturing method of the knitted fabric of the aforementioned aspect, the fabric has a weaving density, and the weaving density can be 10CPCM to 15CPCM.

According to the method for manufacturing knitted fabric of the aforementioned aspect, the method for manufacturing knitted fabric does not include a predetermined step, and the predetermined step is to process the knitted fabric using chemicals and a high temperature environment.

According to the method for manufacturing a knitted fabric of the aforementioned aspect, the knitted fabric does not contain an elastic fiber.

According to another aspect of the present invention, there is provided a knitted fabric structure made by the aforementioned manufacturing method, which is a jacquard fabric and includes a ground card yarn structure and a jacquard yarn structure. The ground carding yarn structure includes a first ground carding unit and a plurality of second ground carding units. The second ground carding unit and the first ground carding unit are interwoven. The jacquard yarn structure is arranged on a surface of the ground carded yarn structure and includes a first jacquard yarn unit, the first jacquard yarn unit and the second ground carded yarn unit are interlaced weaving, wherein the material of the ground carded yarn structure is The material of jacquard yarn is a processed silk.

According to the knitted fabric structure of the aforementioned aspect, the knitted fabric structure does not include an elastic fiber.

100, 300‧‧‧Method of manufacturing knitted fabric

110、320‧‧‧Weaving steps

120、330‧‧‧Dyeing steps

130, 340‧‧‧ set steps

310‧‧‧Drawing steps

200‧‧‧Knitted fabric

210‧‧‧Ground carded yarn organization

211‧‧‧First carding unit

212‧‧‧Second carding unit

220‧‧‧Jacquard yarn weave

221‧‧‧First Jacquard Yarn Unit

Fig. 1 is a schematic diagram of the process of manufacturing a knitted fabric according to an embodiment of the present invention; Fig. 2 is a schematic diagram of a bar weave of the knitted fabric structure according to the embodiment of Fig. 1; Invented another embodiment of the process flow diagram of the manufacturing method of knitted fabric.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. For the sake of clarity, many practical details will be explained in the following description. However, the reader should understand that these practical details should not be used to limit the present invention. That is to say, in some embodiments of the present invention, these practical details are unnecessary. In addition, for the sake of simplification of the drawings, some conventionally used structures and elements will be drawn in a simple schematic manner in the drawings; and repeated elements may be represented by the same number or similar numbers.

Please refer to FIG. 1 and FIG. 2 together. FIG. 1 is a schematic flowchart of a method 100 for manufacturing a knitted fabric according to an embodiment of the present invention. FIG. 2 is a schematic diagram of the comb structure of the structure of the knitted fabric 200 according to the embodiment in FIG. 1. The manufacturing method 100 of knitted fabric includes a weaving step 110, a dyeing step 120, and a setting step 130. The weaving step 110 is to use a knitting machine to knit a ground carded yarn structure 210 and a jacquard yarn structure 220 into a green fabric, and the green fabric is a jacquard jacquard fabric, wherein the material of the ground bared yarn structure 210 and the jacquard The material of the yarn structure 220 is processed silk. In the dyeing step 120, the fabric is dyed. The setting step 130 is to size and shape the dyed fabric to obtain a knitted fabric 200.

Furthermore, the weaving step 110 of the method 100 for manufacturing a knitted fabric of the present invention does not include elastic fibers. The manufacturing method 100 of knitted fabric does not include predetermined steps in the traditional process of manufacturing elastic fabrics, and the predetermined steps are processed on the knitted fabric using chemicals and high temperature environments.

In detail, in the traditional dyeing and finishing process of manufacturing elastic fabrics, in order to make the fabrics have good resilience, elastic fibers are often selected or added for weaving, such as spandex bare rubber yarn. first Perform a high-temperature water washing step to shrink the elastic fibers in the fabric, and then go through a predetermined step to stabilize the elasticity of the fabric. However, the chemicals in the predetermined step and the high temperature environment will damage the yarns of the cloth, making the cloth too stiff, with poor hand feel, and the predetermined step is time-consuming and energy-consuming, which increases the manufacturing cost.

In view of this, through the above-mentioned method 100 for manufacturing a knitted fabric, the original fabric without any elastic fibers can omit the predetermined steps in the traditional dyeing and finishing process before the dyeing step 120. By omitting the predetermined steps, the chemical agents and high temperature in the predetermined steps can prevent the structure of the yarn (ground carded yarn structure 210 and jacquard yarn structure 220) from damaging the fabric of the fabric, so that the yarn of the fabric can still maintain its fluffy With this characteristic, the knitted fabric 200 achieves good resilience, and the comfort of the knitted fabric 200 can be improved. In addition, the manufacturing method 100 for knitted fabrics can not only reduce the predetermined steps of the traditional process and shorten the manufacturing time, but also greatly reduce the manufacturing cost and improve the production efficiency.

In the weaving step 110, the knitting machine can knit the ground carded yarn structure 210 and the jacquard yarn structure 220 into a green fabric through a single needle bed structure or a double needle bed structure in a warp knitting manner. In detail, in Figure 2, the ground carding yarn structure 210 includes a first ground carding unit 211 and a plurality of second ground carding units 212, the second ground carding unit 212 and the first ground The carding yarn units 211 are interlaced with each other; the jacquard yarn structure 220 is arranged on the surface of the ground carding yarn structure 210 and includes a first jacquard yarn unit 221, a first jacquard yarn unit 221 and a second ground carding unit 212 Staggered weaving.

Furthermore, the first ground carding unit 211, the second ground carding unit 212, and the first jacquard yarn unit 221 are all knitted in a full-through yarn manner, and the weaves are knitted in the weaving step 110 The weaving density of green fabric can be 10CPCM to 15CPCM. With the above structure, it is advantageous for the ground carded yarn structure 210 and the jacquard yarn structure 220 to maintain sufficient stretching space, and thereby the knitted fabric 200 has good resilience.

By the weaving method of the weaving step 110, a jacquard jacquard fabric with mesh holes can be made, and the knitted fabric 200 can be jacquard with holes at will. Thereby, the air permeability of the knitted fabric 200 can be increased, and the mesh hole shape of the knitted fabric 200 can present any shape of rhombus, square, round or hexagon, and the knitted fabric 200 has a visual layering feeling. The invention is not limited to this disclosure, and a jacquard jacquard fabric with mesh holes can be made by different weaving methods according to operating requirements.

It is worth mentioning that the material of the ground carded yarn structure 210 and the material of the jacquard yarn structure 220 can be processed silk, and the processed silk is inelastic fiber. Preferably, the processed yarn may be polyethylene terephthalate (PET) fiber or cationic dyeable polyester (CDP) fiber. In addition, replacing the bare spandex yarns of traditional elastic fabrics with PET fibers and CDP fibers can help improve the feel and comfort of the knitted fabric 200, but the present invention is not limited to this.

The fabric produced in the weaving step 110 is subjected to a dyeing step 120. The dyeing step 120 dyes the fabric through a dyeing temperature and a dyeing time, and the dyeing temperature can be set to 98°C to 135°C. The time can be set from 4 hours to 5 hours. Through the dyeing time and the dyeing temperature environment, the dye can be uniformly attached to each yarn structure, but the present invention is not limited to this.

It is worth mentioning that traditional fabrics containing elastic fibers tend to have low color fastness. The manufacturing method 100 of knitted fabrics uses PET fibers and CDP fibers to replace elastic fibers to improve their color fastness. High condition, and improve the problem of easy color bleeding of elastic fibers, and help to improve the uniformity and color fastness of the fabric dyeing in the dyeing step 120.

In order to obtain the knitted fabric 200 that meets the requirements of the product, the dyed fabric must be reshaped. The forming step 130 is to heat and set the dyed fabric at a certain temperature, and the final temperature can be 140°C. To 160°C. It is worth mentioning that in the setting step 130, the dyed fabric may not be stretched, so as to protect the original extensibility and stretchability of the yarn, so that the knitted fabric 200 has a good recovery. elasticity. In addition, the setting step 130 is used to shape the size of the fabric through an overfeeding speed. The overfeeding speed can be 15m/min to 25m/min, and the setting step 130 can be maintained for 60 to 90 seconds. The maintaining time of the speed and definite step 130 can be adjusted according to the yarn state and operation requirements, and the present invention is not limited to this disclosure. It is particularly noted here that the above-mentioned dyeing step 120 and the setting step 130 are all conventional techniques, and will not be repeated here.

Please refer to FIG. 1 and FIG. 3 together. FIG. 3 is a schematic flowchart of a method 300 for manufacturing a knitted fabric according to another embodiment of the present invention. The manufacturing method 300 of the knitted fabric includes a drawing step 310, a weaving step 320, a dyeing step 330, and a setting step 340. Among them weaving step 320, dyeing The coloring step 330 and the setting step 340 are respectively the same as the weaving step 110, the dyeing step 120 and the setting step 130 in FIG. 1, and will not be repeated. In particular, the manufacturing method 300 of knitted fabric may further include a drawing step 310, which draws a jacquard pattern of a jacquard fabric through a drawing software (such as EAT), and sets the yarn matching data of the knitting machine. The knitting machine performs the weaving step 320 according to the flower pattern and the yarn arrangement data of the drawing step 310.

In order to evaluate the physical properties of the knitted fabric 200 made by the knitted fabric manufacturing method 100, the comparison of the knitted fabric 200 of the embodiment in Figure 2 and the comparative example 1 made by the conventional manufacturing method and the comparison of elastic fibers The fixed point extension and gram weight of Example 2 were tested. Table 1 lists the experimental data of the knitted fabric 200 of the embodiment in Figure 2, Table 2 lists the experimental data of Comparative Example 1, and Table 3 lists the experimental data of Comparative Example 2. Among them, the knitted fabric 200 does not contain elastic fibers and does not After predetermined steps, Comparative Example 1 does not contain elastic fibers and has undergone predetermined steps, and Comparative Example 2 contains elastic fibers and has undergone predetermined steps.

It is specifically explained here that the weaving methods of knitted fabric 200, Comparative Example 1 and Comparative Example 2 are all wear-through methods, and in Table 1, Table 2, and Table 3, GB represents ground carded yarn structure 210, and JB represents jacquard yarn For the thread structure 220, the comparison of the physical properties of the knitted fabric 200, Comparative Example 1 and Comparative Example 2 will be detailed below.

Table 1 shows that the knitted fabric 200 has an elongation in the warp direction of 35.2%, an elongation in the longitudinal direction of 83%, and a weight of 302.1g/m without any predetermined steps and no elastic fibers. ² .

Table 2 shows that Comparative Example 1 does not contain elastic fibers and has undergone predetermined steps. From the results of Table 1 and Table 2, it can be seen that when the thickness and number of yarns are the same, the fixed-point stretch of Comparative Example 1 with predetermined steps is worse than that of knitted fabric 200.

Table 3 shows that Comparative Example 2 contains elastic fiber (spandex) and has undergone predetermined steps. From the results of Table 1 and Table 3, it can be seen that the knitted fabric 200, without any elastic fibers, has an elongation close to that of Comparative Example 2 containing elastic fibers, and the yarn thickness and quantity are the same. Next, the weight of the knitted fabric 200 is significantly lower than that of Comparative Example 2 containing elastic fibers.

To summarize the above, by omitting predetermined steps in the manufacturing method 100 of knitted fabrics, the problem of the cloth surface of Comparative Example 1 that is too stiff and poor in extensibility can be effectively improved. Furthermore, the knitted fabric 200 made by the method 100 for manufacturing knitted fabrics does not contain any elastic fibers, but still has an extensibility close to that of elastic fabrics containing elastic fibers, and is compared with traditional elastic fabrics (such as In Comparative Example 2), the weight of the knitted fabric 200 is lighter and can achieve a more comfortable fabric feel. Thereby, the knitted fabric 200 of the present invention can be applied to shoes, sportswear, furnishings, luggage, medical and automotive items, and can be widely used in items commonly used in daily life, and has certain practical properties. .

Although the present disclosure has been disclosed in the above embodiments, it is not intended to limit the present disclosure. Anyone with ordinary knowledge in the relevant technical field can make some changes and modifications without departing from the spirit and scope of the present disclosure. Retouching, therefore, the protection scope of this disclosure shall be subject to the scope of the attached patent application.

100‧‧‧The manufacturing method of knitted fabric

110‧‧‧Weaving steps

120‧‧‧Dyeing steps

130‧‧‧Definite Steps

Claims (15)

A method for manufacturing knitted fabrics includes: a weaving step, using a knitting machine to knit a ground carded yarn weave and a jacquard yarn weave into a fabric, and the fabric is a jacquard fabric; a dyeing step, Dyeing the fabric; and a step of forming the size of the dyed fabric to obtain a knitted fabric; wherein the texture of the ground card yarn and the texture of the jacquard yarn are the same For processing silk, the manufacturing method of the knitted fabric does not include a predetermined step, and the predetermined step is processed on the knitted fabric using chemicals and a high temperature environment. According to the method for manufacturing a knitted fabric described in item 1 of the scope of patent application, the processed yarn is an inelastic fiber. According to the method for manufacturing a knitted fabric described in item 2 of the scope of patent application, the processed yarn is polyethylene terephthalate (PET) fiber or cationic dyeable polyester (CDP) fiber. The method for manufacturing a knitted fabric as described in the first item of the patent application, wherein in the weaving step, the knitting machine knits the ground carded yarn structure and the jacquard yarn structure into the green fabric in a warp knitting manner. The method of manufacturing a knitted fabric according to the first item of the scope of patent application, wherein in the weaving step, the knitting machine knits the ground carded yarn structure and the jacquard yarn structure into the embryo through a single needle bed structure cloth. The method for manufacturing a knitted fabric as described in claim 1, wherein in the weaving step, the knitting machine uses a double needle bed structure to knit the ground carded yarn structure and the jacquard yarn structure into the embryo cloth. The method for manufacturing a knitted fabric as described in the first item of the scope of patent application, wherein the dyeing step dyes the fabric through a dyeing temperature, and the dyeing temperature is 98°C to 135°C. According to the method for manufacturing a knitted fabric as described in item 1 of the patent application, the dyeing step is completed after a dyeing time, and the dyeing time is 4 hours to 5 hours. According to the method for manufacturing a knitted fabric as described in the first item of the scope of patent application, in the setting step, the embryo fabric is sized at a predetermined temperature, and the predetermined temperature is 140°C to 160°C. According to the method for manufacturing a knitted fabric as described in item 1 of the scope of patent application, in the setting step, the embryonic fabric is dimensioned through an overfeeding speed, and the overfeeding speed is 15m/min to 25m/min. According to the method for manufacturing a knitted fabric described in item 1 of the scope of patent application, the setting step is maintained for 60 seconds to 90 seconds. According to the method for manufacturing a knitted fabric as described in item 1 of the scope of the patent application, the fabric has a weaving density, and the weaving density is 10CPCM to 15CPCM. The method for manufacturing a knitted fabric as described in item 1 of the patent application, wherein the knitted fabric does not contain an elastic fiber. A knitted fabric structure made by the manufacturing method described in item 1 of the scope of patent application, which is a jacquard jacquard fabric, and includes: a ground carded yarn structure, including: A first ground carding unit; and a plurality of second ground carding units interlaced with the first ground carding unit; and a jacquard yarn structure arranged on a surface of the ground carding structure It also includes: a first jacquard yarn unit interlaced with the second ground carded yarn units; wherein the material of the ground carded yarn structure and the material of the jacquard yarn structure is a processed yarn. The knitted fabric structure described in item 14 of the scope of patent application, wherein the knitted fabric structure does not include an elastic fiber.

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