JP2001123348A - Biodegradable core-sheath structural spun yarn and cloth composed therefrom - Google Patents
Biodegradable core-sheath structural spun yarn and cloth composed therefromInfo
- Publication number
- JP2001123348A JP2001123348A JP29826699A JP29826699A JP2001123348A JP 2001123348 A JP2001123348 A JP 2001123348A JP 29826699 A JP29826699 A JP 29826699A JP 29826699 A JP29826699 A JP 29826699A JP 2001123348 A JP2001123348 A JP 2001123348A
- Authority
- JP
- Japan
- Prior art keywords
- core
- biodegradable
- spun yarn
- sheath
- fibers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/36—Cored or coated yarns or threads
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/12—Physical properties biodegradable
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Woven Fabrics (AREA)
- Knitting Of Fabric (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、二層断面構造を有
する生分解性芯鞘構造紡績糸及びこれを用いた布帛に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a biodegradable core-sheath spun yarn having a two-layer cross-sectional structure and a fabric using the same.
【０００２】[0002]
【従来の技術】従来より特性の異なる繊維を芯鞘構造に
配した二層断面構造を有する紡績糸が用いられている
が、代表的な芯鞘構造紡績糸の例として、芯部にポリエ
ステル繊維を配して寸法安定性やウォッシュアンドウエ
ア性等の特性をもたらし、鞘部に木綿や再生繊維を配し
て肌ざわりや抗ピリング性等の特性をもたらして、それ
ぞれの繊維の長所を生かし、短所を補って用いられてい
る。ところがポリエステル繊維に代表される汎用の合成
繊維は、石油を出発原料とし、自然界では分解しにくい
ものであり、自然環境保護が重視される環境の下では、
廃棄処理が問題となり、上記のような構造の糸条も同様
の問題を有するものである。2. Description of the Related Art Conventionally, a spun yarn having a two-layer cross-sectional structure in which fibers having different properties are arranged in a core-sheath structure has been used. To provide properties such as dimensional stability and wash-and-wear properties, and to arrange the cotton and regenerated fibers in the sheath to provide properties such as texture and anti-pilling properties, making use of the strengths of each fiber, It is used to make up for disadvantages. However, general-purpose synthetic fibers represented by polyester fibers are made of petroleum as a starting material, are not easily decomposed in the natural world, and in an environment where natural environmental protection is important,
Disposal becomes a problem, and the yarn having the above structure has the same problem.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、上記の現状
に鑑みてなされたものであり、廃棄処理による自然環境
保護の上で問題の起こりにくい芯鞘構造紡績糸を提供す
ることを目的とするものである。SUMMARY OF THE INVENTION The present invention has been made in view of the above situation, and an object of the present invention is to provide a spun yarn having a core-sheath structure which is less likely to cause a problem in natural environment protection by disposal. Is what you do.
【０００４】[0004]
【課題を解決するための手段】本発明は、上記の目的を
達成するものであり、芯鞘構造を有する二層構造紡績糸
であって、芯部が生分解性合成繊維からなり、鞘部が再
生繊維と天然繊維から選ばれた生分解性を有する繊維か
らなることを特徴とする生分解性芯鞘構造紡績糸を要旨
とするものである。SUMMARY OF THE INVENTION The present invention achieves the above-mentioned object and is directed to a two-layer spun yarn having a core-sheath structure, wherein a core portion is made of a biodegradable synthetic fiber and a sheath portion. The present invention provides a biodegradable spun yarn having a core-sheath structure, wherein the spun yarn comprises a biodegradable fiber selected from recycled fibers and natural fibers.
【０００５】[0005]
【発明の実施の形態】以下に，本発明を詳細に説明す
る。本発明の紡績糸は、芯鞘構造を有する二層構造紡績
糸であって、その芯部は生分解性合成繊維からなってい
る。本発明における生分解性合成繊維は、自然界におい
て微生物等により分解する生分解性を有する熱可塑性重
合体からなる繊維であり、生分解性を有する熱可塑性重
合体としては、脂肪族ポリエステル、カプロラクトン等
が挙げられ、脂肪族ポリエステルの中でも融点等実用的
な性能を有している点からポリ乳酸からなるポリ乳酸繊
維が好適に用いられる。生分解性合成繊維は、長繊維糸
であっても、短繊維であってもよい。本発明の紡績糸の
鞘部は、再生繊維と天然繊維から選ばれた生分解性を有
する繊維からなっていて、短繊維である。再生繊維は、
自然界に存在するセルロースを溶解し、繊維状に再生し
た繊維であって、ビスコースレーヨン、キュプラ、ポリ
ノジック、溶剤紡糸セルロース繊維等が挙げられる。生
分解性を有する天然繊維としては、木綿、麻等の植物繊
維や羊毛、絹等の動物繊維が挙げられる。本発明の生分
解性芯鞘構造紡績糸は、次のようにして製造することが
できる。芯部の生分解性合成繊維が短繊維である場合に
は、例えば特公昭５６−１１７７５号公報に記載されて
いる方法により、図１及び図２に示す構造の粗紡機を用
いて芯部用の生分解性合成繊維の短繊維からなる練条上
りスライバーＳ1 と鞘部用の再生繊維と天然繊維から選
ばれた生分解性を有する短繊維からなる練条上りスライ
バーＳ2 を粗紡機に供給して、ローラーパートＡ〜Ｄで
ドラフト後、フロントローラーＤとフライヤーヘッドＥ
との間で芯鞘構造とした粗糸を得て、これを精紡機にて
精紡することにより得る。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail. The spun yarn of the present invention is a two-layer spun yarn having a core-sheath structure, and its core is made of a biodegradable synthetic fiber. The biodegradable synthetic fiber in the present invention is a fiber composed of a biodegradable thermoplastic polymer that is degraded by microorganisms and the like in the natural world. Examples of the biodegradable thermoplastic polymer include aliphatic polyesters and caprolactone. Among them, among the aliphatic polyesters, polylactic acid fibers composed of polylactic acid are preferably used because they have practical performance such as melting point. The biodegradable synthetic fiber may be a long fiber yarn or a short fiber. The sheath portion of the spun yarn of the present invention is made of a biodegradable fiber selected from recycled fibers and natural fibers, and is a short fiber. Recycled fiber is
Fiber which is formed by dissolving cellulose present in the natural world and regenerating into a fibrous form, such as viscose rayon, cupra, polynosic, and solvent-spun cellulose fiber. Examples of biodegradable natural fibers include vegetable fibers such as cotton and hemp, and animal fibers such as wool and silk. The biodegradable core-sheath structured spun yarn of the present invention can be manufactured as follows. When the biodegradable synthetic fiber of the core is a short fiber, for example, by using a method described in Japanese Patent Publication No. 56-11775, a roving machine having a structure shown in FIGS. the Nerijo up sliver S 2 consisting of staple fibers having biodegradability synthetic biodegradable selected from regenerated fibers and natural fibers for Nerijo upstream sliver S 1 and the sheath portion made of a short fiber of the fibers of the roving frame Supply and draft with roller parts AD, front roller D and flyer head E
A roving having a core-in-sheath structure is obtained between them, and this is obtained by spinning with a spinning machine.
【０００６】また、芯部の生分解性合成繊維が長繊維糸
である場合には、図３に示すように精紡機のドラフトゾ
ーンで鞘部用の再生繊維と天然繊維から選ばれた生分解
性を有する短繊維からなる粗糸Ｈをドラフト後、フロン
トローラーＫに直接供給された芯部用の生分解性合成繊
維の長繊維糸Ｍと重ね合わせて、フロントローラーＬを
通過後のトラベラーＰによる撚りにより芯鞘構造を有す
る紡績糸Ｓを得る。本発明における芯鞘構造紡績糸の芯
部と鞘部の割合は、芯部の割合を２０〜４０％とするの
が好ましく、芯部の割合が２０％未満であると、寸法安
定性やウォッシュアンドウエア性等の合成繊維としての
特性を発現させることができにくくなり、４０％を超え
る場合には、芯鞘構造の二層構造糸を安定して紡出する
ことが難しくなり、カバリング不良部が発生しやすくな
るとの問題がある。本発明の生分解性布帛は、上記の生
分解性芯鞘構造紡績糸からなる織物や編物であり、該紡
績糸を用いて通常の方法により得ることができる。When the biodegradable synthetic fiber of the core is a long fiber yarn, as shown in FIG. 3, the biodegradable synthetic fiber selected from the recycled fiber for the sheath and the natural fiber in the draft zone of the spinning machine. After drafting a roving yarn H made of short fibers having properties, it is superimposed on a long fiber yarn M of a biodegradable synthetic fiber for a core directly supplied to a front roller K, and the traveler P after passing through the front roller L To obtain a spun yarn S having a core-sheath structure. The ratio of the core and the sheath of the core-sheath structured spun yarn in the present invention is preferably such that the ratio of the core is 20 to 40%, and when the ratio of the core is less than 20%, the dimensional stability and the wash are improved. If it is less than 40%, it becomes difficult to stably spin core-sheath double-layered yarn, and poor covering effect. There is a problem that is likely to occur. The biodegradable fabric of the present invention is a woven or knitted fabric made of the above-described biodegradable core-sheath structured spun yarn, and can be obtained by a usual method using the spun yarn.
【０００７】[0007]
【実施例】次に本発明を実施例により具体的に説明す
る。 実施例１ 図１及び図２に示す構造の粗紡機を用いて、芯部をなす
スライバーＳ1 としてポリ乳酸短繊維１．７dtex×３８
mmで構成されたスライバーを供給し，巻き付けスライバ
ーＳ2 として木綿１００％のコーマスライバーを、ドラ
フト後の各スライバーの重量比率をＳ1:Ｓ2 ＝４０：６
０とし、図２におけるドラフト方向に対する芯部をなす
スライバーＳ1 のフライヤーヘットＥへの進行角度θを
６０度として、粗糸重量２８０ゲレン／３０ヤード，撚
数０．６２Ｔ／インチの粗糸を得た。この粗糸を用いて
常用の精紡機で精紡して、３０番手（英式綿番手）の本
発明の生分解性芯鞘構造紡績糸を得た。得られた紡績糸
を用いて、釜径３０インチ、２８ゲージのシングル丸編
機で天竺組織にて編み立て、過酸化水素を使用した常法
による晒加工を行い、１３０℃×３０秒の仕上げセット
を行って、本発明のよる生分解性芯鞘構造紡績糸使用編
物を得た。得られた編物の土壌中での生分解挙動を６０
℃×９５％ＲＨの環境下で加速試験で調査した結果、４
カ月で破裂強力が低下し、１０カ月で形態崩壊が始ま
り、生分解効果の確認がとれた。Next, the present invention will be described in detail with reference to examples. Example 1 A polylactic acid short fiber 1.7 dtex × 38 was used as a sliver S 1 as a core using a roving machine having a structure shown in FIGS.
supplying a sliver composed of a mm, the wound sliver S 2 as cotton 100% combed sliver, the weight ratio of each sliver after drafting S 1: S 2 = 40: 6
The roving yarn having a roving weight of 280 gelen / 30 yards and a twist number of 0.62 T / inch is set to 0, and the sliver S 1 forming the core with respect to the draft direction in FIG. Obtained. The roving was spun with a conventional spinning machine to obtain a 30-count (English-type cotton count) spun yarn with a biodegradable core-sheath structure of the present invention. The obtained spun yarn is knitted with a single-layer knitting machine having a kettle diameter of 30 inches and a gauge of 28 gauge, and is subjected to bleaching by a conventional method using hydrogen peroxide, followed by finishing at 130 ° C. for 30 seconds. The setting was performed to obtain a knitted fabric using a biodegradable core-sheath structured spun yarn according to the present invention. The biodegradation behavior of the obtained knitted fabric in the soil was 60
As a result of an accelerated test conducted in an environment of
The rupture strength decreased in 10 months, the morphological collapse started in 10 months, and the biodegradation effect was confirmed.
【０００８】実施例２ 鞘部用としての紡績の通常工程で作成した木綿１００％
の粗糸Ｈと、芯部用としてのポリ乳酸長繊維糸５５dtex
／１２fil を図３に示すリング精紡機にて、その糸構成
が芯鞘となるように設定して、芯鞘の比率を３６：６４
の３６番手（英式綿番手）の本発明の生分解性芯鞘構造
紡績糸Ｔを得た。Example 2 100% Cotton Made in the Normal Process of Spinning for Sheath
Roving H and polylactic acid long fiber yarn 55 dtex for the core
/ 12 fil was set on the ring spinning machine shown in FIG. 3 so that the yarn composition became a core / sheath, and the ratio of the core / sheath was 36:64.
No. 36 (English type cotton count) of the biodegradable core-sheath structured spun yarn T of the present invention was obtained.
【０００９】[0009]
【発明の効果】本発明によると，寸法安定性やウォッシ
ュアンドウエア性等の合成繊維としての特性と肌ざわり
や抗ピリング性等の天然繊維の特性を兼ね具えて、かつ
廃棄処理における問題のない環境にやさしい紡績糸及び
布帛を提供することができ、これらを用いた衣料も廃棄
処理における問題のない環境にやさしいものとすること
ができる。According to the present invention, it has both the properties of synthetic fibers such as dimensional stability and wash and wear properties and the properties of natural fibers such as texture and anti-pilling properties, and has no problem in disposal processing. An environment-friendly spun yarn and fabric can be provided, and clothing using them can be made environment-friendly without any problem in disposal.
【図１】本発明の紡績糸を得るのに必要な粗糸を作成す
る粗紡機の一例の概略側面図である。FIG. 1 is a schematic side view of an example of a roving machine for producing a roving necessary for obtaining a spun yarn of the present invention.
【図２】本発明の紡績糸を得るのに必要な粗糸を作成す
る粗紡機の一例の概略平面図である。FIG. 2 is a schematic plan view of an example of a roving machine for producing a roving necessary for obtaining a spun yarn of the present invention.
【図３】本発明の紡績糸を得る精紡機の一例の概略側面
図である。FIG. 3 is a schematic side view of an example of a spinning machine for obtaining a spun yarn of the present invention.
Ａ バックローラー Ｂ ミドルローラー Ｃ エプロン Ｄ フロントローラー Ｅ フライヤーヘッド Ｆ フライヤー Ｇ 粗糸 Ｈ 粗糸 Ｊ バックローラー Ｋ エプロン Ｌ フロントローラー Ｍ 長繊維糸 Ｎ テンサー Ｐ トラベラー Ｒ スピンドル Ｔ 紡績糸 Ｓ1 芯部をなすスライバー Ｓ2 巻き付けスライバー θ ドラフト軸方向の延長線と，芯部をなすスライバー
の最終ニップ点とフライヤーヘッドを結ぶ線とのなす角
を，水平面に投影した角A Back roller B Middle roller C Apron D Front roller E Flyer head F Flyer G Roving thread H Roving thread J Back roller K Apron L Front roller M Long fiber thread N Tensor P Traveler R Spindle T Spinning thread S Sliver forming one core and extension of S 2 wound sliver θ draft direction, the angle between the line connecting the final nip point and flyer head sliver forming the core portion, projected on a horizontal plane corner
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 4L002 AA02 AA07 AB01 AB02 AC00 BA01 DA01 EA00 FA01 4L036 MA04 MA08 MA09 MA15 MA35 PA21 PA31 UA25 4L048 AA08 AA20 AA42 AB05 AB18 AC00 CA00 DA01 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4L002 AA02 AA07 AB01 AB02 AC00 BA01 DA01 EA00 FA01 4L036 MA04 MA08 MA09 MA15 MA35 PA21 PA31 UA25 4L048 AA08 AA20 AA42 AB05 AB18 AC00 CA00 DA01
Claims (4)
て、芯部が生分解性合成繊維からなり、鞘部が再生繊維
と天然繊維から選ばれた生分解性を有する繊維からなる
ことを特徴とする生分解性芯鞘構造紡績糸。1. A two-layer spun yarn having a core-sheath structure, wherein a core portion is made of biodegradable synthetic fibers and a sheath portion is made of biodegradable fibers selected from recycled fibers and natural fibers. A biodegradable core-sheath structured spun yarn, characterized in that:
からなる生分解性布帛。2. A biodegradable fabric comprising the spun yarn having a biodegradable core-sheath structure according to claim 1.
請求項１の生分解性芯鞘構造紡績糸。3. The spun yarn having a biodegradable core-sheath structure according to claim 1, wherein the biodegradable synthetic fiber is a polylactic acid fiber.
請求項２の生分解性布帛。4. The biodegradable fabric according to claim 2, wherein the biodegradable synthetic fiber is a polylactic acid fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29826699A JP3323165B2 (en) | 1999-10-20 | 1999-10-20 | Biodegradable spun yarn with core-sheath structure and fabric comprising the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29826699A JP3323165B2 (en) | 1999-10-20 | 1999-10-20 | Biodegradable spun yarn with core-sheath structure and fabric comprising the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001123348A true JP2001123348A (en) | 2001-05-08 |
| JP3323165B2 JP3323165B2 (en) | 2002-09-09 |
Family
ID=17857419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29826699A Expired - Lifetime JP3323165B2 (en) | 1999-10-20 | 1999-10-20 | Biodegradable spun yarn with core-sheath structure and fabric comprising the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3323165B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002285442A (en) * | 2001-03-28 | 2002-10-03 | Maison:Kk | Spun yarn having both of form-stability and hygroscopicity, and fiber structure using the same |
| JP2003096752A (en) * | 2001-09-25 | 2003-04-03 | Unitica Fibers Ltd | Sheet for preventing evaporation |
| EP1564316A1 (en) * | 2004-02-12 | 2005-08-17 | Nisshinbo Industries, Inc. | A fiber article comprising a biodegradable plastic |
| JP2006265780A (en) * | 2005-03-24 | 2006-10-05 | Unitika Textiles Ltd | Spun yarn of two-layer structure and woven or knitted fabric |
| DE102006016538A1 (en) * | 2006-04-07 | 2007-11-08 | Garntec Gmbh | Biodegradable binding yarns |
| JP2007308823A (en) * | 2006-05-17 | 2007-11-29 | Unitika Textiles Ltd | Two-layer structure spun yarn and woven or knitted fabric |
-
1999
- 1999-10-20 JP JP29826699A patent/JP3323165B2/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002285442A (en) * | 2001-03-28 | 2002-10-03 | Maison:Kk | Spun yarn having both of form-stability and hygroscopicity, and fiber structure using the same |
| JP2003096752A (en) * | 2001-09-25 | 2003-04-03 | Unitica Fibers Ltd | Sheet for preventing evaporation |
| JP4693310B2 (en) * | 2001-09-25 | 2011-06-01 | ユニチカ株式会社 | Evaporation prevention sheet |
| EP1564316A1 (en) * | 2004-02-12 | 2005-08-17 | Nisshinbo Industries, Inc. | A fiber article comprising a biodegradable plastic |
| US7129190B2 (en) | 2004-02-12 | 2006-10-31 | Nisshinbo Industries, Inc. | Fiber article comprising a biodegradable plastic |
| CN100398709C (en) * | 2004-02-12 | 2008-07-02 | 日清纺绩株式会社 | A fiber article comprising a biodegradable plastic |
| JP2006265780A (en) * | 2005-03-24 | 2006-10-05 | Unitika Textiles Ltd | Spun yarn of two-layer structure and woven or knitted fabric |
| JP4694233B2 (en) * | 2005-03-24 | 2011-06-08 | ユニチカトレーディング株式会社 | Manufacturing method of double-layer structure spun yarn |
| DE102006016538A1 (en) * | 2006-04-07 | 2007-11-08 | Garntec Gmbh | Biodegradable binding yarns |
| EP1842944A3 (en) * | 2006-04-07 | 2008-05-28 | GarnTec GmbH | Biodegradable binding twine |
| JP2007308823A (en) * | 2006-05-17 | 2007-11-29 | Unitika Textiles Ltd | Two-layer structure spun yarn and woven or knitted fabric |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3323165B2 (en) | 2002-09-09 |
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