JP2013104143A - Blended yarn, method for producing the same, fabric and finished article of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a blended yarn that has a special glossiness of a silk fiber, superior draping properties when being formed into a fabric and also such characteristics as to be lightweight and strong, hardly cause neps and have proper water-absorbing properties; a fabric; and a finished article of the fabric.SOLUTION: The blended yarn is formed by blending staple of a polyester fiber, which has an average fiber length of 45-150 mm, staple of a rayon fiber, which has an average fiber length of 45-150 mm and staple of a silk fiber, which has an average fiber length of 45-150 mm. In the whole of the blended yarn, 37-70 mass% of the polyester fiber, 27-60 mass% of the rayon fiber and 3-20 mass% of the silk fiber are contained. The fabric using the blended yarn as a raw yarn and the finished article of the fabric formed by processing the fabric are also disclosed.

Description

  The present invention relates to a blended yarn and a method for producing the same, a fabric using the blended yarn as a raw yarn, and a processed product thereof.

  A blended yarn of polyester fiber and rayon fiber and a fabric using the blended yarn as an original yarn have been used for a long time. For example, Patent Document 1 discloses a blended yarn in which a polyester fiber and a rayon fiber are blended to have a silk-like gloss in order to eliminate the disadvantage of poor gloss in a blended yarn of polyester fiber and cotton fiber. Is disclosed. However, the only way to make the cloth using the blended yarn as a base yarn has a higher gloss is to post-process or arrange (thermal pressure) the cloth. This method is troublesome and has problems such as the fiber being easily damaged.

  In addition, a blended yarn of silk fiber and polyester fiber is also known. For example, Patent Document 2 discloses silk fibers having an average fiber length of 25 to 40 mm and average fiber lengths of 25 to 25 in order to eliminate the deficiency of drapability and the like in a mixed yarn of polyester filaments and silk long fibers. A blended yarn excellent in drape and the like by blending with 40 mm polyester fiber is disclosed. However, fabrics using this blended yarn as a raw yarn have problems of insufficient strength and easy occurrence of neps.

JP 59-216936 A Japanese Patent Laid-Open No. 3-90640

  Therefore, the present invention provides a blended yarn, cloth, and cloth having the unique luster of silk fibers, excellent drapeability of the cloth, light, strong, less likely to cause neps, and moderate water absorption. The purpose is to provide processed products.

(1) The blended yarn of the present invention is a blend of staples having an average fiber length of 45 to 150 mm of polyester fibers, staples having an average fiber length of 45 to 150 mm of rayon fibers, and staples having an average fiber length of 45 to 150 mm of silk fibers. The polyester fiber is 37 to 70% by mass, the rayon fiber is 27 to 60% by mass, and the silk fiber is 3 to 20% by mass with respect to the entire blended yarn.

(2) The method for producing a blended yarn of the present invention includes a step of cutting polyester fibers, rayon fibers, and silk fibers into cut lengths of 45 to 150 mm, respectively, to form staples;
Polyester fiber staples, rayon fiber staples and silk fibers so that the polyester fiber occupies 37 to 70% by mass, the rayon fiber 27 to 60% by mass, and the silk fiber 3 to 20% by mass. And a step of mixing and mixing the staples.

(3) The fabric of the present invention is characterized in that the blended yarn is used as a raw yarn.

(4) The processed fabric product of the present invention is obtained by processing the fabric.

  According to the present invention, a blended yarn having a glossiness unique to silk fibers, excellent drapeability when made into a fabric, light, strong, less susceptible to nep, moderate water absorption, etc. , Fabrics and fabric processed products can be provided.

Hereinafter, embodiments of the present invention will be described.
1. Polyester fiber Polyester fiber has characteristics such as lightness, strength, excellent elasticity, and crease caused by cloth iron is hard to disappear. The kind of polyester fiber is not particularly limited.

  The average fiber length or cut length of polyester staples (both are almost equal) is set to 45 to 150 mm. If the length is less than 45 mm, the strength tends to be insufficient and nep tends to occur. Because it becomes.

  The average fineness of the polyester fiber is not particularly limited, but is preferably 1 to 3 denier.

  About a compounding ratio, it is made for polyester fiber to occupy 37-70 mass% with respect to the whole blended yarn. This is to obtain a property balance of the blended yarn that appropriately exhibits the characteristics of the polyester fiber.

2. Rayon fiber Rayon fiber has characteristics such as gloss and water absorption. The kind of rayon fiber is not particularly limited, and includes, for example, viscose rayon fiber and cupramonium rayon fiber.

  The reason why the average fiber length or cut length of the staple of the rayon fiber is 45 to 150 mm is that if it is less than 45 mm, insufficient strength and nep tend to occur, and if it exceeds 150 mm, it becomes impossible to perform spinning as cotton spinning.

  The average fineness of the rayon fiber is not particularly limited, but is preferably 1 to 3 denier.

  The blending ratio is such that the rayon fibers occupy 27 to 60% by mass with respect to the entire blended yarn. This is to obtain a property balance of the blended yarn that appropriately exhibits the characteristics of the rayon fiber.

3. Silk fiber Silk fiber is the most elegant of all kinds of fibers, and can express beautiful drapes (flowing folds of drooping cloth) that are more difficult to wrinkle on the fabric, soft to the touch, strong There are features such as being strong.
Raw silk is inspected by the method specified by the country, and all grades that are excellent are 5A, and the grades are reduced to 8A, 4A, 3A, 2A, A, B, C, D, as grades decline. Ratings are made separately. 5A is the best, and Np is generated as it goes to D. In order to give the silk fiber unique glossiness, it is preferable to use 5A to A grades. Below B and below D, silk fibers such as fallen cotton may enter, which may impair the gloss.

  The reason why the average fiber length or cut length of the silk fiber staple is 45 to 150 mm is that if it is less than 45 mm, the strength is insufficient, and if it exceeds 150 mm, spinning cannot be performed as cotton spinning. The range of 45 to 150 mm for each of the fibers includes so-called 2-inch spinning (centered at 50-57 mm), 3-inch spinning (centered at 70-85 mm), and 4-inch spinning (centered at 90-140 mm).

  In order to uniformly blend the silk fiber with the polyester fiber and the rayon fiber, it is preferable to adjust the average fiber length (cut length) of the silk fiber to the average fiber length (cut length) of the polyester fiber and the rayon fiber. Therefore, the average fiber length (cut length) of the polyester fiber, the average fiber length (cut length) of the rayon fiber, and the average fiber length (cut length) of the silk fiber are the longest of these three. Is preferably not longer than 50%, more preferably not longer than 30%.

  The average fineness of the silk fiber is not particularly limited, but is preferably 1 to 3 denier.

  About a mixture ratio, it is made for silk fiber to occupy 3-20 mass% with respect to the whole blended yarn. This is to obtain a property balance of the blended yarn that appropriately exhibits the characteristics of the silk fiber. If it is less than 3% by mass, the glossiness and drape characteristic peculiar to silk fibers are insufficient.

4). Blended yarn The yarn count of the blended yarn is not particularly limited, but it is preferably 20/1 to 60/1 for single yarn and 20/2 to 60/2 for twin yarn in terms of British cotton count.
The number of twists of the blended yarn is not particularly limited, but is preferably about 5 to 40 per inch (25.4 mm) for single yarn, and about 5 to 40 for both the upper and lower twists of twin yarn.

5. Cloth is a general term for the above-mentioned blended yarn processed into a sheet shape, and is not limited to a specific one, and examples thereof include woven fabric, knitted fabric, and lace. The weaving and knitting methods are not particularly limited.

6). Fabric processed product The fabric processed product is not limited to a specific application product, and can be exemplified by all processed products such as clothes, sheets, curtains, table hooks, handkerchiefs, and tapes.

  The blended yarn of Example 1 is a staple having an average fiber length of 45 to 60 mm of polyester fiber having an average fineness of 1 to 3 denier, a staple having an average fiber length of 45 to 60 mm of rayon fiber having an average fineness of 1 to 3 denier, and an average fineness. It is a blended yarn obtained by blending 1 to 3 denier silk fibers and staples having an average fiber length of 45 to 60 mm. The blending ratio (final finished yarn component) is such that the polyester fiber occupies 47 to 70 mass%, the rayon fiber 27 to 50 mass%, and the silk fiber 3 to 15 mass% with respect to the entire blended yarn. The 5A-A rating is used for silk fibers. The yarn count of the blended yarn is 20/1 to 60/1 for single yarn and 20/2 to 60/2 for twin yarn in terms of British cotton count.

This blended yarn can be manufactured by a manufacturing method including the following steps.
1. Raw material cutting step The raw material polyester fiber, rayon fiber and silk fiber are each cut into a staple length of 45 to 60 mm into staples. This cutting can be performed using, for example, an attenuator cutting machine.

2. Blending Step (1) Blended Cotton: Polyester fiber staples, rayon fiber staples and silk fiber staples are mixed so as to achieve the above blending ratio. Also, remove dust and foreign substances from the raw materials. The mixed raw material is formed into a sheet having a uniform width and thickness.
(2) Soot: Loosen the tangled fibers (raw materials) and align them in parallel to make a thick string sliver.
(3) Stretching: A plurality of the above slivers are bundled and stretched to produce a fiber bundle having a uniform thickness and improved fiber parallelism.
(4) Roving: The above-mentioned fiber bundle is stretched and twisted into a roving.
(5) Fine spinning: The roving is further stretched to a predetermined thickness, and finished as a blended yarn having a predetermined strength by adding a predetermined number of twists.

  The blended yarn of Example 1 has a glossiness peculiar to silk fibers, and has various properties such as lightness, strength, and moderate water absorption. And the fabric made from this blended yarn and the processed fabric made by processing this fabric also have the glossiness unique to silk fibers on the fabric surface, excellent draping, light, strong, and less likely to generate neps. It also has features such as moderate water absorption. In particular, since the average fiber length (cut length) of silk staples is 45 mm or more, the yarn strength is high, and pills and neps are less likely to occur.

  The blended yarn of Example 2 is a staple having an average fiber length of 70 to 150 mm of polyester fiber having an average fineness of 1 to 3 denier, a staple having an average fiber length of 70 to 150 mm of rayon fiber having an average fineness of 1 to 3 denier, and an average fineness. It is a blended yarn obtained by blending 1 to 3 denier silk fibers and staples having an average fiber length of 70 to 150 mm. The blending ratio (final finished yarn component) is such that the polyester fiber occupies 37 to 60% by mass, the rayon fiber occupies 37 to 60% by mass, and the silk fiber occupies 7 to 20% by mass with respect to the entire blended yarn. Other matters and the manufacturing method are the same as those in the first embodiment.

  The blended yarn of the second embodiment, the fabric using the blended yarn as a raw yarn, and the fabric processed product obtained by processing the fabric also have the same characteristics as the first embodiment.

  The present invention is not limited to the above-described embodiments, and can be modified and embodied as appropriate without departing from the spirit of the invention.

Claims (4)

  A blended yarn obtained by blending staples of polyester fibers having an average fiber length of 45 to 150 mm, staples of rayon fibers having an average fiber length of 45 to 150 mm, and silk fibers having an average fiber length of 45 to 150 mm. A blended yarn comprising 37 to 70% by mass of polyester fiber, 27 to 60% by mass of rayon fiber, and 3 to 20% by mass of silk fiber based on the whole yarn. Cutting polyester fiber, rayon fiber, and silk fiber into cut lengths of 45 to 150 mm, respectively, to form staples;
Polyester fiber staples, rayon fiber staples and silk fibers so that the polyester fiber occupies 37 to 70% by mass, the rayon fiber 27 to 60% by mass, and the silk fiber 3 to 20% by mass. A blended yarn manufacturing method comprising: mixing and blending staples.   A fabric using the blended yarn according to claim 1 as a raw yarn.   A cloth processed product obtained by processing the cloth according to claim 3.