著者

追沼 龍三 成沢 郁夫 小山 清人

出版者

一般社団法人 日本繊維機械学会

雑誌

繊維機械学会誌 (ISSN:03710580)

巻号頁・発行日

vol.49, no.12, pp.T313-T323, 1996

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1×1ゴム編編成域での結び目 (コーマ綿糸c30s/1を用いたウィバースノットおよびフィシャマンズノット) による糸切れ発生機構について, 高速ビデオカメラを用いて詳細に研究した.得られた結果は次の通りである.<BR>(1) 1x1ゴム編編成域での結び目による糸切れが次の3段階を経て発生することを明らかにした.1) シリンダ針の針頭のフック部への結び目の引っ掛かり, 2) 糸張力の増大, 3) 糸切れ.<BR>(2) 1×1ゴム編編成域でのエアースプライスによる糸切れはいずれの編成条件でも全く発生しない.<BR>(3) いずれの結び目でも, 結び目の引っ掛かる率, 引っ掛かった結び目による糸切れ率および結び目による糸切れ率はカム引込量, 給糸張力および巻取荷重の増加とともに増加する.<BR>(4) いずれの編成条件でも, 結び目の引っ掛かる率, 引っ掛かった結び目による糸切れ率および結び目による糸切率はウィバースノットよりフィッシャマンズノットの方が大きい.

著者

追沼 龍三

出版者

The Textile Machinery Society of Japan

雑誌

繊維機械学会誌 (ISSN:03710580)

巻号頁・発行日

vol.39, no.11, pp.P401-P406, 1986-11-25 (Released:2009-10-27)

参考文献数

9

被引用文献数

2

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The effects of some factors on the dimensional parameters of plain-weft knitted fabrics (kc=cl, kw=wl, kn=kc×kw, ks=kc/kw and t/l, where c and w are the courses/cm and wales/cm, l is the loop length in cm and t is the fabric thickness in cm) are investigated experimentally, using cotton paralleled yarns and plied yarns, and a nylon plied yarn.For the coarse nylon plain-weft knitted fabrics (K=7 .6-11.7), k-values are approximately constant, but t/l increases with the increase of the fabric tightness (K=√T/l, where T is the linear density in tex).The results obtained for the cotton plain-weft knitted fabrics (K=7.3-16.0) are as follows : (1) ks, kc and t/l increase with the increase of the fabric tightness (K).ks of plied yarns is dependent on the relaxation treatments (dry, wet, boil and wash), but ks of paralleled yarns is not.At any fabric tightness (K), kc and t/l after a wash-relaxation are always more than kc and t/l after a dry-relaxation, and t/l of paralleled yarns is always more than t/l of plied yarns for all relaxations. (2) For all yarns and relaxations, KW changes little over a range of K>11, but changes very large over a range of K≤11. (3) For all yarns after a dry-relaxation, Kn changes little over a range of K>10, but changes large over a range of K≤10.For paralleled yarns after a washrelaxation, kn increases with the decrease of the fabric tightness (K).

著者

追沼 龍三 成沢 郁夫 小山 清人

出版者

The Textile Machinery Society of Japan

雑誌

繊維機械学会誌 (ISSN:03710580)

巻号頁・発行日

vol.48, no.7, pp.T173-T182, 1995-07-25 (Released:2010-02-12)

参考文献数

7

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結び目 (コーマ綿糸c30s/1を用いたウイバースノットおよびフィッシャーマンズノット) に起因する平編編成域での糸切れ発生機構について, 高速ビデオカメラを用いて詳細に研究した.得られた結果は次のとおりである. (1) 結び目に起因する平編編成域での糸切れが次の3段階を経て発生することを明らかにした.1) 針のフックおよびべらとオールドループとで形成する隙間あるいは針頭と溝壁との隙間での結び目の引掛かり, 2) 糸張力の増大, 3) 糸切れ. (2) エアスプライスによる平編編成域での糸切れはいずれの編成条件でもほとんど発生しない. (3) いずれの結び目でも, 結び目の引掛かる率, 引掛かった結び目の糸切れ率および結び目の糸切れ率はカム引込量, 給糸張力および巻取荷重の増加とともに増加する. (4) いずれの編成条件でも, 結び目の引掛かる率, 引掛かった結び目の糸切れ率および結び目の糸切れ率はウイバースノットよりフィッシャーマンズノットの方が大きい.

著者

追沼 龍三

出版者

The Textile Machinery Society of Japan

雑誌

繊維機械学会誌 (ISSN:03710580)

巻号頁・発行日

vol.41, no.10, pp.P543-P548, 1988-10-25 (Released:2009-10-27)

参考文献数

21

被引用文献数

2

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The effect of stitch length (lu) on the dimensional properties (Uc = Cu × lu, Uw = Wu × lu, Us= Cu × Wu×lu2Uc/Uw = Cu/Wu, and t/l, where lu is the total length in the SKC, Cu is courss/uint fabric length, Wu is wales /unit width the SKC is the smallest repeating unit of the structure, t is the fabric thickness, and l is the loop length), the porosity P (%), the air permeability V (cc/cm2/sec), the thermal retaining propertyH (%), the bending length L (mm), and the tensile breaking strength S (kgf) and elongation E (%) of the 1 X 1 rib fabric knitted from a cotton yarn (c30s/l) is investigated experimentally.The results obtained are as follows : (1) Us is approximately constant, but Uc, Uw, and Uc/Uw are dependent on 1/lu or the fabric tightness K (=n√T/lu, where n is the number of loops in the SKC and T is the yarn linear density in tex). (2) t/l and the weight per unit area of fabric increase with the increase of 1/lu or K.(3) The increase of lu increases P and V, but decreases H.(4) L in each direction (the course (0°), bias (45°), and wale (90°) directions) decreases with the increase of lu. For all lu, L increases with the increase of the angle to the course direction.(5) S in each direction (the course, 22.5°, 45°, 67.5°, and wale directions) decreases with the increase of lu. The strenght efficiency of fabric is about 40% in both the course and wale directions.(6) The increase of lu increases E in the course, 22.5°, and 45° directions, but decreases E in the 67.5° and wale directions. For all lu, E decreases with the increase of the angle to the course direction.

著者

追沼 龍三

出版者

The Textile Machinery Society of Japan

雑誌

繊維機械学会誌 (ISSN:03710580)

巻号頁・発行日

vol.37, no.8, pp.P322-P327, 1984-08-25 (Released:2009-10-27)

参考文献数

14

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The effects of some factors on the knitting defects due to knots in the plain-weft knitting were studied experimentally.The results obtained were as follows(1) The knitting defects due to knots were almost knitting holes which were caused by end breakages in the plain-weft knitting zone. The end breakage occured at the point of take-down side at a short distance from the knot.(2) As each of knitting factors such as the depth of stitch draw, the input yarn tension, the takedown weight, the machine gauge, the coefficient of friction between yarn and needle and the machine speed were increased, the end breakage rate incresed. But the increase of the cam angle decreased the end breakage rate.

著者

追沼 龍三 佐々木 栄一 長谷 修子 高橋 三恵

出版者

一般社団法人 日本繊維製品消費科学会

雑誌

繊維製品消費科学 (ISSN:00372072)

巻号頁・発行日

vol.26, no.10, pp.428-431, 1985-10-25 (Released:2010-09-30)

参考文献数

6

著者

追沼 龍三

出版者

The Textile Machinery Society of Japan

雑誌

繊維機械学会誌 (ISSN:03710580)

巻号頁・発行日

vol.40, no.8, pp.P321-P328, 1987-08-25 (Released:2009-10-27)

参考文献数

13

被引用文献数

1

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The effects of some factors on the dimensional parameters (Us=Cu×Wu×lu2=Su×lu2, Uc=Cu×lu, Uw=Wu×lu, and Uc/Uw = Cu/Wu, where lu is the total length in the SKC, Cu is course units/unit fabric length, Wu is wale units/unit wide and the SKC is the smallest repeating unit of the structure) and t/l (where lu is the fabric thickness and l is the loop length) of 1 × 1 rib knitted fabrics are investigated experimentally, using the cotton yarns (30s//3, 20s/2 or 30s/3) and the nylon sewing threads (from raw or textured filament yarns).For the 1 × 1 rib fabrics knitted from the nylon sewing threads, U-values are approximately constant, but t/l increases with the increase of the fabric tightness (K = n√T/lu, where n is the number of loop in the SKC and T is the yarn linear density in tex).The results obtained for the cotton 1 X 1 rib knitted fabrics are as follows : (1) For all fabrics after each relaxation treatment (DR, WR, BR, LR (1), (2) and (3) are the dry, wet, boil wash (1), (2) and (3) relaxation treatments respectively), Uc and t/l increase with the increase of K.(2) For all fabrics after each relaxtion treatment espect for LR (2) and (3), Uc/Uw increases with the increase of K, but Uw and Us decrease with the increase of K.(3) For the fabrics knitted from 20s/2 or 30s/3 after LR (2) or (3), Uc/Uw and Uw show a similar tendency to those obtained after DR, WR, BR and LR (1).(4) For the fabrics knitted from 30s//3 after LR (2) or (3), Uc/Uw and Uw over a range of K > 13 show a similar tendency to those obtained after DR, WR, BR and LR (1), but Uc/Uw and Uw over a range of K≤13 show a reverse tendency to those.(5) After LR (2) or (3), Us-values of the fabrics knitted from 20s/2 or 30s/3 are independent on K, but Us for 30s//3 increases with the increase of K.

著者

追沼 龍三

出版者

The Textile Machinery Society of Japan

雑誌

繊維機械学会誌 (ISSN:03710580)

巻号頁・発行日

vol.41, no.5, pp.P297-P303, 1988-05-25 (Released:2009-10-27)

参考文献数

13

被引用文献数

1

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The effects of some factors on the defects in 1 X 1 rib knitting due to knots are investigated experimentally, using a cotton yarn (c30s/1) and a worsted yarn (2/72s).The results obtained are as follow : (1) The knitting defect due to the knots is almost the knitting hole caused by end breakages in 1 X 1 rib knitting zone. The end breakage occurs near the knot on the take-down side.(2) The end breakage rate increses together with the increase of the depth of stitch draw, the input tension, the take-down weight and the step length of cam. But the increase of the cam angle decreases the end breakage rate.

著者

追沼 龍三 中川 智 荻田 哲也

出版者

The Textile Machinery Society of Japan

雑誌

繊維機械学会誌 (ISSN:03710580)

巻号頁・発行日

vol.42, no.10, pp.P549-P555, 1989-10-25 (Released:2009-10-27)

参考文献数

11

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The effect of some knitting factors such as the machine gauge, the depth of stitch draw, the input tension, and the take-down weight on the end breakage rates in plain-weft knitting zone due to yarn joints (airsplices, weavers knots and fisherman's knots) is investigated experimentally, using a cotton yarn (30s/1).The results obtained are as follows : (1) The knitting defect due to airsplices is hardly occurred for every knitting condition. Airsplice is a very usefull yarn joint on weft knitting.(2) The knitting defect due to weavers knots or fisherman's knots almost causes knitting holes by end breakages in a plain-weft knitting zone. The end breakage occurs near the knot on the take-down side.(3) The end breakage rate in a plain-weft knitting zone due to weavers knots or fisherman's knots increases together with the increase of the machine gauge, the depth of stitch draw, the input tension, and the take-down weight.(4) For every knitting condition, the end breakage rate in plain-weft knitting zone due to fisherman's knots is more than that due to weavers knots.

著者

追沼 龍三 成沢 郁夫 小山 清人

出版者

The Textile Machinery Society of Japan

雑誌

繊維機械学会誌 (ISSN:03710580)

巻号頁・発行日

vol.49, no.12, pp.T313-T323, 1996-12-25 (Released:2010-02-12)

参考文献数

11

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1×1ゴム編編成域での結び目 (コーマ綿糸c30s/1を用いたウィバースノットおよびフィシャマンズノット) による糸切れ発生機構について, 高速ビデオカメラを用いて詳細に研究した.得られた結果は次の通りである.(1) 1x1ゴム編編成域での結び目による糸切れが次の3段階を経て発生することを明らかにした.1) シリンダ針の針頭のフック部への結び目の引っ掛かり, 2) 糸張力の増大, 3) 糸切れ.(2) 1×1ゴム編編成域でのエアースプライスによる糸切れはいずれの編成条件でも全く発生しない.(3) いずれの結び目でも, 結び目の引っ掛かる率, 引っ掛かった結び目による糸切れ率および結び目による糸切れ率はカム引込量, 給糸張力および巻取荷重の増加とともに増加する.(4) いずれの編成条件でも, 結び目の引っ掛かる率, 引っ掛かった結び目による糸切れ率および結び目による糸切率はウィバースノットよりフィッシャマンズノットの方が大きい.