Knitted garment using natural fiber yarn and manufacturing method for knitted garment using natural fiber yarn

Abstract

[Problem] To provide: a knitted product which uses natural fiber yarn and / or synthetic fiber yarn, and in which elongation and contraction of ground yarn can be effectively inhibited without using a large-scale thermal treatment device; and a production method for the knitted product. [Solution] According to the present invention, thermal fusion bonding yarn that melts at 105°C or lower is fusion-bonded to all or a portion of ground yarn that is natural fiber yarn and / or synthetic fiber yarn. A knitted product, in which the thermal fusion bonding yarn is not melted, is efficiently produced by forming using a flat knitting machine while knitting the thermal fusion bonding yarn into all or a portion of the ground yarn. Since the thermal fusion bonding yarn melts at 105°C or lower, the thermal fusion bonding yarn can be melted by an electric steam iron so as to be fusion-bonded to the ground yarn, without using a large-scale thermal treatment device. Since the thermal fusion bonding yarn is fusion-bonded to the ground yarn of the knitted product, elongation and contraction of the ground yarn can be inhibited.

Description

[Technical field]

[0001] The present invention relates to a sweater, cardigan, etc. Made with natural fiber yarn Concerning knitted garments. [Background technology]

[0002] Circular knitted fabrics used for knit products such as complementary innerwear items, such as girdles, leggings, and brassieres, as well as compression wear, such as sports bottom wear and sports underwear, include those having high elongation parts and low elongation parts (see, for example, Patent Document 1).

[0003] In the circular knitted fabric of Patent Document 1, the ground yarn is the same in the low elongation portion and the high elongation portion, the low elongation portion contains a heat-sealed yarn, and at least a part of the heat-sealed yarn is heat-sealed to each other. Elastic yarns such as polyurethane-based and polyether ester-based yarns are used as the ground yarns in the circular knitted fabric of Patent Document 1. The heat-sealed yarns in the circular knitted fabric of Patent Document 1 are fibers that have the property of melting and fusing by heat treatment at dry heat of 120°C for 1 minute or wet heat treatment at 110°C for 30 seconds, and polyamide-based fibers, polyester-based fibers, polyurethane-based fibers, etc. are used. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 5688240 Summary of the Invention [Problem to be solved by the invention]

[0005] Knitted fabrics have loops that are continuously connected, and therefore have advantages over woven fabrics, such as high elasticity and flexibility, and excellent heat retention.

[0006] However, knitted garments made using natural fiber yarns and / or synthetic fiber yarns have disadvantages, such as being prone to losing their shape (e.g., stretching due to gravity when hung on a hanger) and shrinking after washing.

[0007] In particular, in the case of knitted clothing made from natural fiber yarn, when washed in water, the hydrophilic fibers absorb moisture and become thicker and shorter, and may shrink by as much as 10%, for example.

[0008] Also, if the natural fiber yarn is wool, Made with natural fiber yarn A disadvantage of knitted clothing is that when it is wet, for example when it is washed in water, the fibers become tangled and shrink (felt) when they are subjected to pressure such as kneading, rubbing, and pushing.

[0009] Natural Fiber Yarn of In the case of using the heat-sealing yarn in the circular knit fabric of Patent Document 1 to suppress the expansion and contraction of the ground yarn in the knitted garment such as a sweater or cardigan, it is necessary to carry out a heat treatment at dry heat of 120°C for 1 minute or at wet heat of 110°C for 30 seconds in order to fuse the heat-sealing yarn to the ground yarn. When carrying out a heat treatment at dry heat of 120°C for 1 minute or at wet heat of 110°C for 30 seconds, the natural fiber yarn used in the knitted garment To This may result in damage to the fibers and loss of texture.

[0010] Furthermore, in order to perform a dry heat treatment at 120°C for 1 minute or a wet heat treatment at 110°C for 30 seconds, it is necessary to use a large-scale heat treatment device such as a pin tenter dry heat setting machine or an autoclave wet heat setting machine after knitting the knitted fabric containing the heat-sealing yarn. Therefore, a necessary capital investment is required and small-lot production is difficult. If a factory that owns such a large-scale heat treatment device is requested to perform a heat treatment on the knitted fabric containing the heat-sealing yarn, the production period will be long.

[0011] The present invention relates to a natural fiber yarn. of To effectively suppress the expansion and contraction of ground yarns of used knitted clothing without impairing the feel and without using a large-scale heat treatment device. [Means for solving the problem]

[0012] The knitted garment using natural fiber yarn according to the first aspect of the present invention comprises a ground yarn using natural fiber yarn, and a knitted fabric having a fineness of 30 denier or more and 150 denier or less, which melts at 105°C or less, knitted into the ground yarn. , not elastic yarn and a heat-sealing yarn, the heat-sealing yarn being fused to all or a part of the ground yarn. It is made on a flat knitting machine. do.

[0014] The present invention 2 The knitted garment using the natural fiber yarn according to the aspect is a knitted garment using the natural fiber yarn according to the first aspect. To In the present invention, the heat-sealing yarn is a nylon heat-sealing yarn having a melting point of 75°C or higher and 90°C or lower.

[0015] The present invention 3 The method for manufacturing a knitted garment using natural fiber yarn according to the present invention comprises the steps of: (1) adding a natural fiber yarn having a fineness of 30 denier or more and 150 denier or less, which melts at 105°C or less to all or a part of the ground yarn using the natural fiber yarn; , not elastic yarn The method includes a first step of manufacturing a knitted garment in a flat knitting machine while knitting a heat-sealed yarn, the heat-sealed yarn being in an unmelted state, and a second step of melting the heat-sealed yarn in the knitted garment that has undergone the first step with a steam iron, thereby fusing the heat-sealed yarn to the ground yarn.

[0016] The present invention 4 The method for manufacturing knitted clothing using natural fiber yarn according to the present invention comprises the steps of: 3 In the method for manufacturing a knitted garment using natural fiber yarn according to the present invention, the heat-sealing yarn is a nylon heat-sealing yarn having a melting point of 75°C or higher and 90°C or lower. Effect of the Invention

[0017] The knitted garment using the natural fiber yarn of the present invention and the knitted garment manufactured by the manufacturing method of the knitted garment using the natural fiber yarn of the present invention use the natural fiber yarn as the ground yarn. The ground yarn using the natural fiber yarn has a fineness of 30 denier or more and 150 denier or less in whole or in part. , not elastic yarn Since the heat-sealing yarn is fused, the expansion and contraction of the ground yarn made of natural fiber yarn can be suppressed.

[0018] The heat-sealing yarn is knitted into all or a part of a ground yarn using natural fiber yarn, and a knit garment using the natural fiber yarn in a state where the heat-sealing yarn is not melted is produced. 、 By manufacturing the garment using shaped knitting with a flat knitting machine, the amount of yarn used and cutting loss can be reduced, while efficiently manufacturing knitted garments using natural fiber yarn in an unmelted state of the heat-sealed yarn.

[0019] The heat-sealing yarn melts at 105°C or less, so there is no need to use a large-scale heat treatment device. Made with natural fiber yarn The steam iron is moved so as to apply steam to the required portion of the knitted garment where the heat-sealing yarn is present, and the heat-sealing yarn can be melted and fused to the ground yarn by efficient operation using the steam iron. Therefore, Made with natural fiber yarn This does not impair the texture of knitted clothing, and enables small-lot, short-cycle production that meets the individualization and diversification of consumer needs. [Brief description of the drawings]

[0020] [Figure 1] This is a knitting diagram of Milanese rib knitting. [Diagram 2] This is a knitting diagram for single rib knitting. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] < Made with natural fiber yarn Knitted clothing> The present invention Made with natural fiber yarn Knitted clothing is On the ground thread Natural Fiber Yarn of That is, the knitted garment is made using only natural fiber yarn. or Made from blended yarn made by mixing natural and synthetic fibers in a specified ratio. of The fineness of the yarn is from 1 to 100. As the natural fiber yarn, for example, cotton yarn, wool yarn, animal wool yarn, etc. are used. As the synthetic fiber yarn, acrylic, polyester, etc. are used.

[0022] The present invention Made with natural fiber yarn The knitted garment is a knitted garment produced by a flat knitting machine, such as a sweater, a cardigan, a dress, or a skirt.

[0023] The present invention Made with natural fiber yarn The type of knitting method for the knitted garment is not limited. Made with natural fiber yarn The knitting method for knitted clothing can be any method that allows for weft knitting, such as plain stitch, rib stitch, Milanese rib stitch, rib stitch, pique stitch, garter stitch (pearl stitch), openwork stitch, etc.

[0024] The knitted garment using the natural fiber yarn of the present invention has a natural fiber yarn that melts at 105°C or less in all or part of the ground yarn. , not elastic yarn The heat-sealing yarn is fused. The heat-sealing yarn melts at 105° C. or less, for example, a nylon heat-sealing yarn having a melting point of 75° C. or more and 90° C. or less.

[0025] The fineness of the heat-melting yarn is between 30 denier and 150 denier, and is selected so as to obtain the desired texture depending on the thickness and hardness of the knitted fabric.

[0026] The present invention Made with natural fiber yarn Knitted clothing is made from natural fiber yarns. Used Since the thermally fused yarn is fused to all or a part of the ground yarn, the expansion and contraction of the ground yarn can be suppressed. By knitting the natural fibers of the ground yarn and the thermally fused yarn in a required ratio, the shrinkage of the natural fibers can be controlled.

[0027] <Manufacturing method for knitted clothing using natural fiber yarn> The knitted garments using the natural fiber yarn of the present invention are manufactured by a flat knitting machine that creates a shape according to a pattern. That is, the whole or part of the ground yarn using the natural fiber yarn is made of a material that melts at 105°C or less. , not elastic yarn While knitting the heat-sealed yarn, a knit garment is manufactured using the natural fiber yarn in a state where the heat-sealed yarn is not melted, using a flat knitting machine (first step). For example, by manufacturing a knit garment using the natural fiber yarn by shaping knitting using a flat knitting machine, it is possible to efficiently manufacture a knit garment using the natural fiber yarn in a state where the heat-sealed yarn is not melted, while reducing the amount of yarn used and cutting loss.

[0028] Next, the heat-sealing yarn is Made with natural fiber yarn The heat-sealing yarn is melted by a steam iron that sprays high-temperature steam from holes on the bottom of the knitted garment, and the heat-sealing yarn is fused to the ground yarn (step 2). Since the heat-sealing yarn melts at 105°C or less, this can be done without using a large-scale heat treatment device. Made with natural fiber yarn For example, an electric steam iron of 1000W to 1500W can be moved so as to apply steam to the required locations of the heat-sealed yarn on the knitted garment, and the heat-sealed yarn can be melted and fused to the ground yarn by efficient operation with the steam iron.

[0029] Melts at <105°C , not elastic yarn Examples of heat-sealing threads> Melts below 105℃ , not elastic yarn In a preferred embodiment, the heat-sealing yarn is a nylon heat-sealing yarn having a melting point of 75° C. or more and 90° C. or less.

[0030] Examples of nylon heat-sealed yarn with a melting point of 75°C or higher and 90°C or lower that can be used include "Nylon heat-sealed yarn" (melting point 80°C) from CHANGZHOU CITY LINGXIAN TEXTILE EQUIPMENT CO., LTD., or "Japanese-made heat-sealed yarn 78T" (melting point 85°C) from Mitsubishi Chemical Corporation.

[0031] <Example of how to insert heat-sealing thread> (1) When suppressing longitudinal and lateral stretching In plain knitting, rib knitting, rib knitting, etc., the ground yarn and heat-sealed yarn are inserted throughout the entire knitting. Double mill knitting, in which two different yarns are pulled in at the same time, is preferable. The ground yarn and heat-sealed yarn pass through separate yarn insertion ports toward the head of the flat knitting machine, where they meet.

[0032] (2) When stopping horizontal stretching while maintaining vertical stretching For example, in the knitting diagram of Milanese rib knitting shown in Figure 1, (1) is the ground yarn (rib knit ground yarn) that loops with the latch needle on the front needle bed and the latch needle on the back needle bed, (2) is the ground yarn that loops only with the latch needle on the back needle bed, and (3) is the ground yarn that loops only with the latch needle on the front needle bed. Of these, the heat fusion yarn is aligned with the ground yarns of (2) and (3) (the heat fusion yarn is knitted in).

[0033] Also, for example, in the knitting diagram of one-rib knitting shown in FIG. 2, of the ground yarns of the tuck knitting (1) and the rib knitting (2), the heat-sealing yarn is aligned with the ground yarn of (1) (the heat-sealing yarn is knitted in).

[0034] (3) When the knitted fabric maintains its elasticity while retaining its shape For example, in the Milanese rib knitting diagram shown in Figure 1, the heat-sealed yarn is aligned with the rib knit ground yarn (1) (the heat-sealed yarn is knitted in).

[0035] Also, for example, in the knitting diagram of one-rib knitting shown in FIG. 2, the heat-sealing yarn is aligned with the ground yarn of the rib knitting of (2) (the heat-sealing yarn is knitted in).

[0036] < Made with natural fiber yarn Specific method for adjusting tension of knitted garments> Made with natural fiber yarn The tension (stretch range) of a knitted garment is adjusted by the way in which the heat-sealing yarn is inserted into the ground yarn of the course, which is a row of loops arranged horizontally in the knitted fabric, for example as follows.

[0037] (1) When tension is set very low The ground yarns of all courses are knitted together with heat-sealed yarns.

[0038] (2) When lowering the tension Three courses are knitted with the ground yarn together with the heat-sealed yarn, and two courses are knitted with the ground yarn alone, and this is repeated.

[0039] (3) When using normal tension One course of ground yarn is knitted together with heat-sealed yarn, one course is knitted using only the ground yarn, and this process is repeated.

[0040] (4) When increasing tension Two courses of ground yarn are knitted together with heat-sealed yarn, and then three courses are knitted using only the ground yarn, and this is repeated.

[0041] (5) When tension is very high One course is knitted with the ground yarn together with the heat-sealed yarn, then 9 courses are knitted with the ground yarn alone, and this is repeated.

[0042] <Evaluation of washing durability> (Evaluation method) Based on the C4M method of JIS L 1930:2014 "Home washing test method for textile products" (wash for 6 minutes at 40°C, rinse for 2 minutes twice, spin for 3 minutes each, and hang dry), the dimensional change rate after washing and drying is calculated as [(length after treatment) - (length before treatment)] / (length before treatment).

[0043] (Subject to evaluation) Milan rib knit Made with natural fiber yarn The subject of evaluation is a sweater (100% cotton with a 2 / 100 count thread count).

[0044] Examples and Comparative Examples The sweater is manufactured on a flat knitting machine using 50 denier "Japanese heat fusion yarn 78T" (melting point 85°C) manufactured by Mitsubishi Chemical Corporation as the ground yarn for the rib knit (1×1 rib) of (1) in the knitting diagram of Milanese rib knitting shown in Figure 1, and the heat fusion yarn is melted and fused to the ground yarn with a steam iron to form the Example. The sweater without the heat fusion yarn is the Comparative Example.

[0045] (Evaluation Results) The dimensional change rates for the body length, body width, sleeve length, and hem width were calculated after one washing and drying cycle in the washing test method of the evaluation method, and after five cycles of washing and drying, and are shown in Table 1. Positive values ​​indicate "stretch" and negative values ​​indicate "shrinkage."

[0046] [Table 1]

[0047] Comparative Example Made with natural fiber yarn After washing and drying the sweater once, the length, width and sleeve length have shrunk, and the hem width has expanded. The above After washing and drying the sweater five times, the length and width of the sweater have shrunk, while the sleeve length and hem width have expanded. The above After washing and drying the sweater five times, the length shrank by a large amount of 6.3%.

[0048] In contrast, Made with natural fiber yarn After the sweater has been washed and dried once and after it has been washed and dried five times, the length, width, sleeve length and hem width have shrunk.

[0049] Example The above After washing and drying the sweater once, the greatest shrinkage was in the length, which was 1.7%. This shrinkage in length (1.7%) was smaller than that of the comparative example. The above The amount of shrinkage in the length of the sweater after one wash and dry cycle (3.0%) is reduced to about 57%. The aboveAfter washing and drying the sweater five times, the greatest shrinkage was in the length, which was 3.7%. This shrinkage in length (3.7%) was 3.7% less than that of the comparative example. The above This is reduced to approximately 59% of the shrinkage observed in the length of a sweater after five washes and drying cycles (6.3%).

[0050] As described above, the comparative example Made with natural fiber yarn More examples than sweaters Made with natural fiber yarn It can be seen that the sweater has a much higher shape stability after repeated washing and drying, and the maximum amount of shrinkage is significantly smaller.

[0051] <Action and effect> According to the above-described embodiment of the present invention, Made with natural fiber yarn Knitted clothing is On the ground thread Natural Fiber Yarn of Natural fiber yarn Used Since the heat-sealing yarn is fused to all or a part of the ground yarn, the expansion and contraction of the ground yarn can be suppressed.

[0052] The heat-sealing yarn is woven into the whole or part of the ground yarn while the heat-sealing yarn is in an unmelted state. Made with natural fiber yarn By producing knitted clothing by forming knitting using a flat knitting machine, for example, the amount of yarn used and cutting loss can be reduced, while the heat-sealing yarn is in an unmelted state. Made with natural fiber yarn Knitted garments can be produced efficiently.

[0053] The heat-sealing yarn melts at 105°C or less, so there is no need to use a large-scale heat treatment device. Made with natural fiber yarn The steam iron is moved so as to apply steam to the required portion of the knitted garment where the heat-sealing yarn is present, and the heat-sealing yarn can be melted and fused to the ground yarn by efficient operation using the steam iron. Therefore, Made with natural fiber yarn This does not impair the texture of knitted clothing, and enables small-lot, short-cycle production that meets the individualization and diversification of consumer needs.

[0054] The above description of the embodiments is given by way of example only and is not intended to be limiting, and various improvements and modifications can be made without departing from the scope of the present invention.

Claims

1. The ground thread is made of natural fiber yarn, a heat-fusible yarn that is not an elastic yarn and has a fineness of 30 denier or more and 150 denier or less and melts at 105°C or less, which is woven into the ground yarn; It consists of: The heat-fusible yarn is fused to all or a part of the ground yarn, It was made on a flat knitting machine. Knitted clothing made from natural fiber yarn.

2. The heat-sealing yarn is a nylon heat-sealing yarn having a melting point of 75° C. or more and 90° C. or less. A knitted garment made using the natural fiber yarn according to claim 1.

3. A first step of knitting a non-elastic heat-fusible yarn having a fineness of 30 denier or more and 150 denier or less, which melts at 105°C or less, into all or a part of a ground yarn using natural fiber yarn, while manufacturing a knit garment in a state in which the heat-fusible yarn is not melted, using a flat knitting machine; A second step of melting the heat-sealing yarn with a steam iron on the knitted garment that has been subjected to the first step, thereby fusing the heat-sealing yarn to the ground yarn; Including, A method for manufacturing knitted garments using natural fiber yarns.

4. The heat-sealing yarn is a nylon heat-sealing yarn having a melting point of 75° C. or more and 90° C. or less. A method for producing knitted garments using the natural fiber yarn according to claim 3.

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