Silkworm weaving

Abstract

The present invention provides a mulberry silk knitted fabric that contains mulberry silk threads and is formed by knitting mulberry silk threads. [Solution] The mulberry silk knitted fabric contains mulberry silk yarn and is formed by knitting the mulberry silk yarn. The mulberry silk yarn is formed from 100% by mass of silk fibers 101. Through a rational fiber blend, yarn structure, or knitting structure, it is possible to achieve both the skin-friendly properties and smoothness characteristic of silk, and the elasticity, dimensional stability, and suitability for machine washing required for knitted fabrics. As a result, the texture and appearance are improved, as is the elasticity of the knitted fabric in the horizontal and vertical directions, and dimensional stability is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of knitting, and particularly relates to mulberry silk knitted fabric.

Background Art

[0002] Currently, commercially available silk fabrics have a soft luster, present a smooth texture, are excellent in hygroscopicity and breathability, have a good touch, and contain amino acids, so they are sometimes called the "queen of fibers". However, these silk fabrics have drawbacks such as relatively low strength, significant reduction in strength in the wet state, poor alkali and salt resistance, easy wrinkling, easy snagging, difficult handling, and high price.

[0003] Conventional silk fabrics are mostly manufactured by weaving, and have drawbacks such as a hard texture, poor elasticity, and insufficient fit when worn. On the other hand, although silk knitted fabrics are excellent in flexibility and elasticity, in pure silk fabrics, problems such as easy fuzzing, easy snagging, easy deformation during machine washing, and poor dimensional stability still exist. Also, in blended or interwoven products of silk and other fibers, issues such as difficulty in weaving silk / cotton interwoven fabrics, inferior dyeing uniformity, and difficulty in controlling the texture still remain in terms of achieving both the unique texture of silk and wearing performance.

Summary of the Invention

[0004] The object of this utility model is to provide a mulberry silk knitted fabric, and to solve the problem that it was difficult in the prior art to simultaneously achieve both the skin-friendly property and smooth texture unique to silk and the elasticity, dimensional stability, and machine washability required for knitted fabrics. That is, by adopting a reasonable fiber blend, yarn structure, or knitting pattern, the aim is to achieve both of these characteristics. As a result, the texture and appearance are improved, the elasticity in the transverse and longitudinal directions of the knitted fabric is improved, and the dimensional stability is enhanced.

[0005] To achieve the above objective, this utility model employs the following technical means.

[0006] This utility model provides a mulberry silk fabric that includes mulberry silk threads and is formed by knitting the mulberry silk threads.

[0007] Preferably, the mulberry silk thread consists of 100% by mass of silk fibers.

[0008] More preferably, the mulberry silk yarn contains at least 51% by mass of silk fibers, with the remainder being one or more other fibers selected from cotton fibers, regenerated cellulose fibers, nylon fibers, polyester fibers, modal fibers, and polyurethane fibers, and is blended or woven in a predetermined ratio such that the total of these other fibers is 49% by mass or less.

[0009] Preferably, the silk fiber content is 60% by mass, the polyurethane fiber content is 5% by mass, and the cotton fiber content is 35% by mass.

[0010] More preferably, the mulberry silk yarn is a core-spun yarn formed by a cover twisting process in a predetermined ratio of silk fibers and one or more other fibers selected from cotton fibers, nylon fibers, polyester fibers, modal fibers, and polyurethane fibers.

[0011] Preferably, the core-spun yarn has a core yarn made of one or more fibers selected from polyester fibers, nylon fibers, and cotton fibers, and an outer yarn made of silk fibers, or a blend of silk fibers and one or more fibers selected from cotton fibers, nylon fibers, polyester fibers, modal fibers, and polyurethane fibers.

[0012] Preferably, the silk fiber content is 80-95% by mass, and the polyurethane fiber content is 5-20% by mass.

[0013] More preferably, the mulberry silk yarn is a covered yarn formed by a covering process using silk fibers and one or more other fibers selected from cotton fibers, nylon fibers, polyester fibers, modal fibers, and polyurethane fibers in a predetermined ratio.

[0014] Preferably, the covered yarn has a silk core and one or more fibers selected from cotton, rayon, and polyester as the outer covering.

[0015] More preferably, the mulberry silk yarn is a yarn made by drawing together silk fibers and cotton yarn and / or colored yarn in a predetermined ratio, or an AB yarn or fancy yarn formed by a fancy twist process.

[0016] This utility model achieves the following effects by employing the above-described technical means. The mulberry silk knitted fabric according to this utility model solves the problem in conventional technology of simultaneously achieving the skin-friendly properties and smooth texture characteristic of silk fibers with the elasticity, dimensional stability, and machine washability required for knitted fabrics. By adopting a rational fiber blend, yarn structure, or knitting structure, it is possible to achieve both of these characteristics.

[0017] As a result, it is possible to improve the texture and appearance, enhance the stretchability of the knitted fabric in both the horizontal and vertical directions, and improve dimensional stability. Furthermore, it is applicable to small-lot production and offers excellent production flexibility. In addition, it has a superior feel against the skin and high elasticity and fit, making it suitable for high-end applications or applications for sensitive skin. [Brief explanation of the drawing]

[0018] [Figure 1] This is a schematic diagram showing the structure of mulberry silk fabric according to one embodiment of this utility model. [Figure 2] This is a schematic diagram showing the structure of mulberry silk knitted fabric according to another embodiment of this utility model. [Figure 3]This is a schematic diagram showing the structure of mulberry silk threads that constitute a mulberry silk knitted fabric according to yet another embodiment of this utility model. [Modes for carrying out the invention]

[0019] The purpose, technical configuration, and effects of this utility model will be described more clearly and completely below with reference to the attached drawings. The embodiments shown below represent only a limited number of embodiments of this utility model, and the utility model is not limited to these. Any other embodiments that a person of ordinary skill in the art could conceive of based on the embodiments disclosed in this utility model without requiring any creative effort are all covered by this utility model.

[0020] In this description of the utility model, terms indicating direction or positional relationships such as "up," "down," "front," and "back" are based on the direction or positional relationships shown in the drawings and are merely convenient expressions to facilitate understanding of this utility model. They do not limit the arrangement or operation of the components to a specific direction. The arrows in the drawings indicate the direction of liquid flow.

[0021] Furthermore, in the description of this utility model, terms such as "assembly," "arrangement," and "connection" shall be interpreted broadly unless otherwise explicitly specified or limited, and shall include fixed connections, detachable connections, or integral configurations. These connections may be mechanical or electrical. They may also be direct connections or indirect connections via intermediate members, and include internal communication between two components. A person skilled in the art will be able to understand the specific meaning of the above terms in this utility model, depending on the specific circumstances.

[0022] The following describes in detail each embodiment of this utility model with reference to the drawings.

[0023] Example 1 As shown in Figure 1, the mulberry silk knitted fabric according to this embodiment contains mulberry silk threads and is formed by knitting the mulberry silk threads. Compared with the conventional woven silk fabric made of mulberry silkworm silk, the knitted mulberry silkworm silk fabric of this embodiment can improve the stretchability in the horizontal and vertical directions and improve the dimensional stability. In addition, the mulberry silkworm silk thread may be formed from 100% by mass of silk fiber 101.

[0024] Example 2 The knitted mulberry silkworm silk fabric according to this embodiment is generally the same as that of Example 1. However, as a difference, the mulberry silkworm silk thread contains at least 51% by mass of silk fiber 101, and the balance is one or more other fibers selected from cotton fiber, regenerated cellulose fiber, nylon fiber, polyester fiber, modal fiber, and polyurethane fiber 102. These other fibers are blended or interwoven at a predetermined ratio so that the total of these other fibers is 49% by mass or less.

[0025] For example, the silk fiber 101 may be 60% by mass, the polyurethane fiber 102 may be 5% by mass, and the cotton fiber 103 may be 35% by mass. In addition, the cotton fiber 103 may be configured as a blended fiber containing one or more fibers selected from regenerated cellulose fiber, nylon fiber, polyester fiber, or modal fiber.

[0026] Example 3 As shown in FIG. 3, the knitted mulberry silkworm silk fabric according to this embodiment is generally the same as that of Example 1. However, as a difference, the mulberry silkworm silk thread uses silk fiber 101 and one or more fibers selected from cotton fiber, nylon fiber, polyester fiber, modal fiber, and polyurethane fiber 102 at a predetermined ratio, and is a core-spun yarn formed by a covering twist process.

[0027] For example, one or more fibers selected from polyester fiber, nylon fiber, and cotton fiber are used as the core yarn, and silk fiber 101, or a blended yarn of silk fiber 101 and one or more fibers selected from cotton fiber, nylon fiber, polyester fiber, modal fiber, and polyurethane fiber 102 is used as the covering yarn.

[0028] Furthermore, the amount of silk fiber 101 can be 80-95% by mass, and the amount of polyurethane fiber 102 can be 5-20% by mass.

[0029] For example, the silk fiber 101 may be 80% by mass and the polyurethane fiber 102 may be 20% by mass. Alternatively, the silk fiber 101 may be 95% by mass and the polyurethane fiber 102 may be 5% by mass. Furthermore, the silk fiber 101 may be 90% by mass and the polyurethane fiber 102 may be 10% by mass.

[0030] Example 4 The mulberry silk knitted fabric according to this embodiment is generally the same as that of Embodiment 1, but the difference is that the mulberry silk yarn is a covered yarn formed by a covering process using silk fibers 101 and one or more fibers selected from cotton fibers, nylon fibers, polyester fibers, modal fibers, and polyurethane fibers 102 in a predetermined ratio.

[0031] For example, silk fiber 101 is used as the core yarn, and one or more fibers selected from cotton fiber, rayon fiber, and polyester fiber are used as the outer yarn.

[0032] Example 5 The mulberry silk knitted fabric according to this embodiment is generally the same as that of Embodiment 1, but the difference is that the mulberry silk yarn is a yarn made by drawing together silk fibers 101 and cotton yarn and / or colored yarn in a predetermined ratio, or an AB yarn or fancy yarn formed by a fancy twist process.

[0033] Based on the above, the specific structure of the mulberry silk knitted fabric according to each embodiment of this utility model will be described below.

[0034] (Fiber composition) Silk fibers 101 made from mulberry silk are used as the main fiber, and one or more fibers selected from cotton fibers, nylon fibers, polyester fibers, modal fibers, and polyurethane fibers 101 can be blended or interwoven with them.

[0035] (Thread structure) The silk fiber 101 may be directly blended with other fibers to form the yarn. Alternatively, a covered yarn or core-spun yarn structure may be adopted, for example, with silk fibers as the outer covering yarn and high-strength fibers as the core yarn. Furthermore, the texture and appearance can be optimized by using AB yarn, fancy yarn, etc.

[0036] (Organizational organization) By employing basic knitting structures such as plain knit, rib knit, and double knit, or by using variations such as jacquard, mesh, and reinforcing yarn, it is possible to create knitted fabrics with a variety of textures.

[0037] (Telescopic design) By adjusting the knitting structure, incorporating an appropriate amount of polyurethane fiber 102, or using elastic core-spun yarn, the stretchability of the knitted fabric in the horizontal and vertical directions can be improved, and dimensional stability can be enhanced. Furthermore, the silk fiber 101 can be further specified as follows.

[0038] (kinds) Mulberry silk is used, preferably raw silk of grade 3A or higher, or high-quality spun silk. (linear density) 1.2 dtex or 210D. For example, 22 / 24D, 44 / 48D, etc. (Twist degree) 54.4 twists per 10cm. The specific twist ratio can be adjusted as needed according to the requirements for texture and strength.

[0039] (Quality requirements) The yarn must be uniform in texture, have few defects, and meet the standards for silk yarn used in knitting applications in terms of whiteness, cleanliness, and strength. Furthermore, other fibers can be further specified as follows:

[0040] (Cotton fiber) Long-staple cotton or finely combed cotton is used, with a linear density of 7510 dtex and a twist count of 40 turns per 10 cm.

[0041] (Nylon fiber or polyester fiber) It consists of long or short fibers, with a linear density of 140 to 13500, or 2.2 to 3.3 dtex.

[0042] (Modal fiber or rayon fiber) Let the linear density be 1 dtex. (Polyurethane fiber 102 (spandex yarn)) The linear density is set to 11 dtex, for example, 20D, 30D, or 40D. The elastic elongation is 300%, and a heat-resistant type is preferably used. More specifically, the yarn structure and its manufacturing process are as follows:

[0043] (Thread structure design) (Blended yarn) Silk fibers 101 and cotton fibers, nylon fibers, or polyester fibers, etc., are blended in a predetermined ratio during the drawing process, roving process, and spinning process to form a single yarn.

[0044] (Core-spun yarn) The yarn is manufactured using polyester fiber, nylon fiber, or cotton fiber as the core yarn, and silk fiber 101, or a blended yarn of silk fiber 101 and other fibers, as the outer yarn, through a cover twisting process.

[0045] (Covered yarn) By using long silk fibers as the core thread and cotton fibers, rayon fibers, or polyester fibers as the outer thread, the abrasion resistance and strength of the silk are improved.

[0046] (AB yarn or fancy yarn) By drawing silk threads and cotton threads or colored threads in a predetermined ratio, or by using a fancy twist process, threads with varying thicknesses or color effects are formed.

[0047] (Pretreatment of silk fiber 101 (immersion treatment or softening treatment)) (the purpose) This improves the flexibility, lubricity, and bendability of silk fibers 101, and reduces the occurrence of defects such as yarn breakage, weft streaks, and holes in the knitting process. (Process example) (Equipment) Immersion tank. (Soaking temperature) 40~50℃. (Soaking time) 2 to 18 hours, set and adjusted according to the type of fabric softener used. (Bath ratio) 1:6~1:13. (Auxiliary agent) A fabric softener is used, for example, an HV301-type immersion fabric softener with a concentration of 2-5.8%, a 2% concentration JFC penetrating agent, a softening oil, glycerin, etc.

[0048] (Post-processing) After the immersion treatment, the silk fibers 101 are centrifuged to remove water, dried in a shaded, well-ventilated place, and then re-rolled before being put into use. (Rewinding tension) Control to 11-14 cN More specifically, typical specifications for mulberry silk yarn used in knitting are as follows:

[0049] (Commonly used yarn count (Nm)) The following are typical specifications for mulberry silk or spun silk yarn used for knitting. Medium-fine gauge (suitable for applications that come into direct contact with the skin): 48Nm / 2, 60Nm / 2, 80Nm / 2. Medium-weight yarn (allows for both fabric thickness and flexibility): 100Nm / 2, 120Nm / 2. Fine count (fine and smooth texture): 140Nm / 2~210Nm / 2. Note that Nm indicates the yarn count in meters, and Nm / 2 means a double yarn formed by twisting two single yarns together. Commercially available silk knitting yarns commonly use yarns ranging from 48Nm / 2 to 120Nm / 2.

[0050] (Yarn composition) Using 100% mulberry silk or spun silk can improve the feel, smoothness, and breathability of the fabric. Blended yarns can improve durability or reduce costs, and can be blended with fibers such as nylon, cotton, and rayon. For example, blending mulberry silk with nylon improves abrasion resistance, while blending with cotton enhances flexibility and moisture absorption.

[0051] (Form of thread) (Yarn / Cheese yarn) This is the shipping method for the yarn, and it undergoes a winding process using a winder before knitting.

[0052] (Twist degree) Silk knitting yarns are often made with medium to high twist, which ensures elasticity and pilling resistance. More specifically, when the mulberry silk knitted fabric according to this embodiment is used for pillowcases, it may be manufactured using a weft knitting circular knitting machine, or it may be manufactured using a flat knitting machine or a warp knitting machine. Of these, the weft circular knitting machine is suitable for producing single jersey, double jersey, rib knit, and other plain knit or simple jacquard fabrics, and is ideal for use in pillowcases, T-shirts, and home wear.

[0053] (Selection of a circular knitting machine for weft knitting) (Cylinder diameter) Since the width of fabric for pillowcases is typically 1.5 to 1.8 meters, a circular knitting machine with a weft diameter of 30" to 34" (i.e., a cylinder diameter of 76 to 86 cm) can be selected. Note that "" represents inches.

[0054] (Gauge (number of needles / inches)) Select the gauge according to the yarn count. For example, with high-count yarns (100Nm / 2 to 210Nm / 2, etc.), selecting a fine gauge of 28G to 36G can result in a finer texture. Note that G is a symbol indicating the fineness of the needle. For medium-weight yarns (48Nm / 2 to 80Nm / 2, etc.), an intermediate gauge of 24G to 28G is selected to achieve a balance between flexibility and durability.

[0055] (Number of yarn feed ports (number of feeds)) The more feeds you receive, the higher your productivity will be. Pillowcases are classified as medium to low-volume production products, and typically employ a feed rate of 2-4 feeds per inch. On the other hand, computer-controlled flat knitting machines are suitable for manufacturing pillowcases with partially seamless structures, three-dimensional patterns, or contrasting structures, such as U-shaped pillows or irregularly shaped pillows.

[0056] (Selection of computer-controlled flat knitting machine) (gauge) Since the fabric used for pillowcases is relatively thin, it is possible to select a medium-fine gauge locomotive with gauges ranging from E7 to E12. Note that E represents the gauge designation of the locomotive model.

[0057] (Features) It supports all types of molded knitting and can reduce or eliminate the sewing process. Furthermore, while warp knitting machines are suitable for manufacturing special structured fabrics such as mesh fabrics and warp-knitted pile fabrics, they are generally not suitable for applications such as mulberry silk pillow covers, where a smooth and soft texture is important.

[0058] When selecting a machine and setting the conditions, first determine the desired texture and yarn count. For example, If you prioritize a luxurious feel, choose 95-100% silk spun yarn with a yield of 60Nm / 2 or 80Nm / 2. If durability and ease of handling are important, select a 60Nm / 2 or 80Nm / 2 silk spun blend yarn (with a silk spun yarn mass percentage of 60% or more).

[0059] Next, set the corresponding knitting machine conditions. For example, For high-count yarns (100Nm / 2 to 210Nm / 2, etc.), use a circular knitting machine with a fine gauge of 28G to 36G. For medium-weight yarns (60Nm / 2 to 80Nm / 2, etc.), combine them with a circular knitting machine with an intermediate gauge of 24G to 28G.

[0060] Next, the organizational structure is decided. For example, The basic specifications can utilize either a single jersey or a 1x1 rib construction.

[0061] "1x1 rib" refers to a knitting structure in which one row of right-side stitches and one row of wrong-side stitches are arranged alternately. The anti-slip design utilizes a double-face mesh or ribbed structure to increase friction between the pillowcase and the pillow core.

[0062] Finally, the above embodiments are for the purpose of explaining the technical concept of this utility model, and the utility model is not limited to these embodiments. Those skilled in the art can appropriately modify the technical configurations described in each of the embodiments, or substitute some of their technical features with equivalent ones. Such modifications or substitutions do not depart from the technical concept and scope of each embodiment of this utility model. [Explanation of Symbols]

[0063] 101: Silk fiber 102: Polyurethane fiber 103: Cotton fiber

Claims

1. It is a mulberry silk fabric, A mulberry silk knitted fabric characterized by containing mulberry silk threads and being formed by knitting the mulberry silk threads.

2. The mulberry silk yarn is characterized in that it consists of 100% silk fibers, as described in claim 1.

3. The mulberry silk yarn is characterized in that it contains at least 51% by mass of silk fibers, the remainder being one or more other fibers selected from cotton fibers, regenerated cellulose fibers, nylon fibers, polyester fibers, modal fibers, and polyurethane fibers, and is blended or interwoven in a predetermined ratio such that the total of these other fibers is 49% by mass or less, as described in claim 1.

4. The mulberry silk yarn is characterized in that it contains 60% by mass of silk fibers, 5% by mass of polyurethane fibers, and 35% by mass of cotton fibers, as described in claim 3.

5. The mulberry silk yarn is a core-spun yarn formed by a cover twisting process using silk fibers and one or more other fibers selected from cotton fibers, nylon fibers, polyester fibers, modal fibers, and polyurethane fibers in a predetermined ratio, as described in claim 1.

6. The mulberry silk knitted fabric according to claim 5, characterized in that the core spun yarn uses one or more fibers selected from polyester fibers, nylon fibers, and cotton fibers as the core yarn, and silk fibers, or a blended yarn of silk fibers and one or more fibers selected from cotton fibers, nylon fibers, polyester fibers, modal fibers, and polyurethane fibers as the outer yarn.

7. The mulberry silk knitted fabric according to claim 6, characterized in that the silk fiber content in the core-spun yarn is 80 to 95% by mass, and the polyurethane fiber content is 5 to 20% by mass.

8. The mulberry silk yarn is characterized in that it is formed as a covered yarn consisting of a core yarn and an outer covering yarn covering the core yarn, using a predetermined ratio of silk fibers and one or more other fibers selected from cotton fibers, nylon fibers, polyester fibers, modal fibers, and polyurethane fibers, by a covering process.

9. The mulberry silk knitted fabric according to claim 8, characterized in that the covered yarn uses silk fibers as the core yarn and one or more fibers selected from cotton fibers, rayon fibers, and polyester fibers as the outer covering yarn.

10. The mulberry silk yarn is characterized in that it is a yarn made by drawing together silk fibers and cotton yarn and / or colored yarn in a predetermined ratio, or an AB yarn or fancy yarn formed by a fancy twist process, as described in claim 1.

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