JPH04202824A - Light-and heat-resistant high-tenacity sewing thread - Google Patents
Light-and heat-resistant high-tenacity sewing threadInfo
- Publication number
- JPH04202824A JPH04202824A JP33913790A JP33913790A JPH04202824A JP H04202824 A JPH04202824 A JP H04202824A JP 33913790 A JP33913790 A JP 33913790A JP 33913790 A JP33913790 A JP 33913790A JP H04202824 A JPH04202824 A JP H04202824A
- Authority
- JP
- Japan
- Prior art keywords
- sewing thread
- light
- aromatic polyamide
- sewing
- resin
- 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.)
- Pending
Links
- 238000009958 sewing Methods 0.000 title claims abstract description 60
- 239000000835 fiber Substances 0.000 claims abstract description 48
- 239000004760 aramid Substances 0.000 claims abstract description 35
- 229920003235 aromatic polyamide Polymers 0.000 claims abstract description 35
- 229920005989 resin Polymers 0.000 claims abstract description 29
- 239000011347 resin Substances 0.000 claims abstract description 29
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 238000002844 melting Methods 0.000 claims abstract description 7
- 230000008018 melting Effects 0.000 claims abstract description 7
- 239000000853 adhesive Substances 0.000 claims description 19
- 239000011248 coating agent Substances 0.000 abstract description 7
- 238000000576 coating method Methods 0.000 abstract description 7
- 238000004804 winding Methods 0.000 abstract description 4
- 125000003118 aryl group Chemical group 0.000 abstract description 3
- 239000004611 light stabiliser Substances 0.000 description 22
- 239000000203 mixture Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 6
- 238000011282 treatment Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 150000004982 aromatic amines Chemical class 0.000 description 3
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 3
- 239000012965 benzophenone Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- HJIAMFHSAAEUKR-UHFFFAOYSA-N (2-hydroxyphenyl)-phenylmethanone Chemical compound OC1=CC=CC=C1C(=O)C1=CC=CC=C1 HJIAMFHSAAEUKR-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 2
- XQVWYOYUZDUNRW-UHFFFAOYSA-N N-Phenyl-1-naphthylamine Chemical compound C=1C=CC2=CC=CC=C2C=1NC1=CC=CC=C1 XQVWYOYUZDUNRW-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 2
- 239000012964 benzotriazole Substances 0.000 description 2
- 229920006026 co-polymeric resin Polymers 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- GEYOCULIXLDCMW-UHFFFAOYSA-N 1,2-phenylenediamine Chemical compound NC1=CC=CC=C1N GEYOCULIXLDCMW-UHFFFAOYSA-N 0.000 description 1
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 description 1
- WJQOZHYUIDYNHM-UHFFFAOYSA-N 2-tert-Butylphenol Chemical compound CC(C)(C)C1=CC=CC=C1O WJQOZHYUIDYNHM-UHFFFAOYSA-N 0.000 description 1
- CMGDVUCDZOBDNL-UHFFFAOYSA-N 4-methyl-2h-benzotriazole Chemical compound CC1=CC=CC2=NNN=C12 CMGDVUCDZOBDNL-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- UTGQNNCQYDRXCH-UHFFFAOYSA-N N,N'-diphenyl-1,4-phenylenediamine Chemical compound C=1C=C(NC=2C=CC=CC=2)C=CC=1NC1=CC=CC=C1 UTGQNNCQYDRXCH-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical group C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 1
- 229920000561 Twaron Polymers 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- FDQSRULYDNDXQB-UHFFFAOYSA-N benzene-1,3-dicarbonyl chloride Chemical compound ClC(=O)C1=CC=CC(C(Cl)=O)=C1 FDQSRULYDNDXQB-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 239000004762 twaron Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、高張力下での縫製が可能な、耐光性の改良さ
れた、芳香族ポリアミド繊維よりなる縫糸に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a sewing thread made of aromatic polyamide fiber that can be sewn under high tension and has improved light resistance.
（従来の技術）
縫糸は、従来、木綿、絹等の天然繊維を用いたものが大
部分であったが、近年、ナイロン、ポリエステル等の合
成繊維を用いたものが主流を占めるに至っている。これ
らの繊維を縫糸に加工する方法としては、通常、撚を施
す方法、あるいは樹脂をコーティングする方法等が行わ
れている。しかし、これらの天然繊維および合成繊維の
縫糸は、耐熱性に乏しく、例えば、ミシン等で縫製する
際に、高速、高張力下で扱われると、ミシン針穴との間
で摩擦熱が発生し、糸切断につながる欠点があり、また
、耐熱性を必要とする縫製品には使用できなかった。ま
た、高い縫目強力を必要とする縫製に対応するには太い
縫糸を使用しなければならず、そのため縫製作業に手間
がかかり、縫糸使用量も増すため、経済的にも不利であ
った。(Prior Art) Traditionally, sewing threads have mostly been made of natural fibers such as cotton and silk, but in recent years, synthetic fibers such as nylon and polyester have become mainstream. The methods for processing these fibers into sewing threads include twisting them, coating them with resin, and the like. However, these natural fiber and synthetic fiber sewing threads have poor heat resistance, and when sewn with a sewing machine, for example, when they are handled at high speed and under high tension, frictional heat is generated between them and the needle hole of the sewing machine. However, it had the disadvantage of leading to thread breakage, and could not be used for sewn products that required heat resistance. Furthermore, in order to handle sewing that requires high seam strength, it is necessary to use thick sewing thread, which makes the sewing work laborious and increases the amount of sewing thread used, which is also economically disadvantageous.
これらの問題を解決する縫糸用の繊維としては、耐熱性
の優れた芳香族ポリ了ミド繊維が考えられるが、芳香族
ポリアミドは単一な繊維軸方向の剛直な分子構造を有し
ているため、伸度がほとんどなく、従って、通常の縫糸
のような撚糸や樹脂コーティング等の方法で縫糸に加工
すると、毛羽立ちが起こり、十分な強力が保てず、しか
も低い伸度がわざわいして繊維間の相互の結合が十分得
られない。一方、樹脂コーティング等によって繊維間の
相互の結合を得るには、多量の樹脂の含浸を必要とし、
その結果、縫糸の風合が硬くなり、使用しづらい欠点が
あった。また、芳香族ポリアミド繊維は耐光性に問題が
あり、長期使用時の信頼性に欠ける面がある。このよう
に、芳香族ポリアミド繊維の特性を十分に生かした縫糸
は、未だ開発されていないのが現状である。Aromatic polyamide fiber, which has excellent heat resistance, can be considered as a fiber for sewing threads that solves these problems, but aromatic polyamide has a rigid molecular structure in the direction of the single fiber axis. , it has almost no elongation, and therefore, if it is processed into sewing thread using methods such as twisting or resin coating like normal sewing thread, it will become fluffy and cannot maintain sufficient strength, and the low elongation will cause problems and the fibers There is insufficient mutual connection between the two. On the other hand, in order to obtain mutual bonding between fibers by resin coating etc., it is necessary to impregnate a large amount of resin.
As a result, the texture of the suture became stiff, making it difficult to use. Furthermore, aromatic polyamide fibers have a problem with light resistance and lack reliability during long-term use. As described above, at present, a sewing thread that fully takes advantage of the characteristics of aromatic polyamide fibers has not yet been developed.
（発明が解決しようとする課題）
本発明は、このような現状に鑑みて行われたもので、高
張力下での縫製が可能な、耐光性の改良された、芳香族
ポリアミド繊維よりなる縫糸を得ることを目的とするも
のである。(Problems to be Solved by the Invention) The present invention was made in view of the current situation, and provides a sewing thread made of aromatic polyamide fiber that can be sewn under high tension and has improved light resistance. The purpose is to obtain.
（課題を解決するための手段）
本発明は、上記目的を達成するもので、次の構成よりな
るものである。(Means for Solving the Problems) The present invention achieves the above object and has the following configuration.
すなわち、本発明は、複数の高強力、低伸度芳香族ポリ
アミド繊維糸を撚合わせてなる縫糸であって、上記芳香
族ポリアミド繊維糸同士が、縫糸の中心部付近で熱接着
性フィラメント糸の熱溶融により互いに結合されてなり
、かつ縫糸の表面が耐光剤で被覆されてなることを特徴
とする耐熱性高強力縫糸を要旨とするものである。That is, the present invention provides a sewing thread formed by twisting a plurality of high-strength, low-elongation aromatic polyamide fiber threads, wherein the aromatic polyamide fiber threads are bonded to a thermoadhesive filament thread near the center of the sewing thread. The gist of the invention is a heat-resistant, high-strength sewing thread that is bonded to each other by heat melting and whose surface is coated with a light-resistant agent.
以下、本発明の詳細な説明する。The present invention will be explained in detail below.
本発明の縫糸は、次の方法によって製造することができ
る。The sewing thread of the present invention can be manufactured by the following method.
まず、高強力、低伸度芳香族ポリ了ミド繊維系に通常の
縫糸としての下撚を施す。ここでいう芳香族ポリアミド
繊維糸とは、分子構造の主鎖中に芳香族環、チアゾール
環等の剛直構造を有するもので、例えば、ｐ−フェニレ
ンジアミンとイソフタル酸クロライドの重縮合物よりな
るフィラメント系を挙げることができる。また、高強力
、低伸度とは、強度２０ｇ／ｄ以上、切断伸度４％以下
を意味するものとする。芳香族ポリアミド繊維系は剛直
な分子構造を有しているため、施撚に際して通常の接触
式スネールガイドを用いると、引き出し張力によって毛
羽立ちが起こり、強度低下につながるので注意を要する
。この対策としては、ガイドに回転式ベア １Ｊングガ
イドを用いると上記問題を解消することができる。First, a high-strength, low-elongation aromatic polyamide fiber system is twisted as a normal sewing thread. The aromatic polyamide fiber yarn mentioned here has a rigid structure such as an aromatic ring or a thiazole ring in the main chain of its molecular structure.For example, a filament made of a polycondensate of p-phenylenediamine and isophthalic acid chloride The system can be mentioned. Moreover, high strength and low elongation mean a strength of 20 g/d or more and a cutting elongation of 4% or less. Aromatic polyamide fibers have a rigid molecular structure, so if a normal contact-type snail guide is used for twisting, care must be taken as the pulling tension will cause fluffing, leading to a decrease in strength. As a countermeasure to this problem, the above problem can be solved by using a rotary bearing guide as the guide.
次に、下撚の施された複数本の芳香族ポリアミド繊維糸
を合わせて上撚を施すが、このとき熱接着性フィラメン
ト糸を複数の芳香族ポリアミド繊維糸間の中心部付近に
位置するように撚合わせる。Next, the first-twisted aromatic polyamide fiber yarns are put together and final-twisted. At this time, the heat-adhesive filament yarn is positioned near the center between the aromatic polyamide fiber yarns. Twist it together.
これを図面を用いて説明すると次のごとくなる。This will be explained using drawings as follows.
第１図は、本発明における耐光・耐熱性高強力縫糸を製
造する際に用いる撚糸機を例示する概略図であり、第２
ｒｇＪは、上撚工程に用いる撚込みガイドの拡大図、第
３図は、本発明の縫糸の断面図である。回転式ベアリン
グガイドを用いて任意の撚に下撚施撚された芳香族ポリ
アミド繊維糸１，１゜１を、各々ニップローラー３を通
し、撚詰みガイド４の各々のスリット穴４ａに導き、ト
ラベラ５を介して捲取りボビン６に撚合わせて捲取る。FIG. 1 is a schematic diagram illustrating a thread twisting machine used in manufacturing the light-resistant and heat-resistant high-strength sewing thread of the present invention;
rgJ is an enlarged view of the twisting guide used in the final twisting process, and FIG. 3 is a cross-sectional view of the sewing thread of the present invention. Aromatic polyamide fiber yarns 1, 1° 1, which have been pre-twisted to an arbitrary twist using a rotary bearing guide, are guided through the nip rollers 3 to each slit hole 4a of the twisting guide 4, and then guided to the traveler. 5, twist onto a winding bobbin 6, and wind it up.
このとき、熱接着性フィラメント糸２は、ニップローラ
ー３を通さず、直接撚込みガイド４のス゛リット穴４ｂ
に通し、以下、前記芳香族ポリアミド繊維糸１とともに
捲取りボビン６に捲取られる。このとき、熱接着性フィ
ラメント糸２の撚込みガイド４へ送り込む張力は、芳香
族ポリアミド繊維糸１の張力の１１５以上が必要である
。送り込む張力が１１５未満の場合、芳香族ポリアミド
繊維糸１同士が撚合わされる際、熱接着性フィラメント
糸２が蛇行しながら入り、芳香族ポリアミド繊維糸１，
１．１間の真ん中に配置せず、後述の樹脂処理・熱処理
によっても繊維糸相互の結合が得られない。熱接着性フ
ィラメント糸２を芳香族ポリアミド繊維糸１．１．１間
の真ん中に配置するには、上記のごとき送り込む張力と
第２図に示す撚込みガイド４のスリット穴４ａ、４ｂの
配置が大切である。熱接着性フィラメント糸２を通すス
リット穴４ｂは、芳香族ポリアミド繊維糸１を通す各々
のスリット穴４ａの中心に位置し、その各々のスリット
穴４ａは等分割されているものである。また、スリット
穴４ａおよび４ｂの大きさは、通過する芳香族ポリアミ
ド繊維糸１．１．１および熱接着性フィラメント糸２の
糸の太さにより調整すればよい。このような撚込みガイ
ド４を用い、熱接着性フィラメント糸２を撚込みガイド
４へ送り込む張力の調整を行うことにより、熱接着性フ
ィラメント糸２を芳香族ポリアミド繊維糸１．１．１間
の真ん中に配置することができる。At this time, the heat-adhesive filament yarn 2 is directly inserted into the slit hole 4b of the twisting guide 4 without passing through the nip roller 3.
Thereafter, the aromatic polyamide fiber yarn 1 is wound onto a winding bobbin 6. At this time, the tension of the thermoadhesive filament yarn 2 sent into the twisting guide 4 must be 115 times higher than the tension of the aromatic polyamide fiber yarn 1. When the feeding tension is less than 115, when the aromatic polyamide fiber yarns 1 are twisted together, the thermoadhesive filament yarn 2 enters in a meandering manner, and the aromatic polyamide fiber yarns 1,
1. If the fibers are not placed in the middle between 1 and 1, the fibers cannot be bonded to each other even by the resin treatment and heat treatment described below. In order to arrange the thermoadhesive filament yarn 2 in the middle between the aromatic polyamide fiber yarns 1.1.1, the tension to be fed as described above and the arrangement of the slit holes 4a, 4b of the twisting guide 4 shown in FIG. It's important. The slit hole 4b through which the thermoadhesive filament yarn 2 is passed is located at the center of each slit hole 4a through which the aromatic polyamide fiber yarn 1 is passed, and each slit hole 4a is equally divided. Further, the sizes of the slit holes 4a and 4b may be adjusted depending on the thickness of the aromatic polyamide fiber yarn 1.1.1 and the heat-adhesive filament yarn 2 passing through. By using such a twisting guide 4 and adjusting the tension for feeding the heat-adhesive filament yarn 2 into the twisting guide 4, the heat-adhesive filament yarn 2 is inserted between the aromatic polyamide fiber yarns 1.1.1. It can be placed in the middle.
ここで用いている熱接着性フィラメント糸は、溶融紡糸
によりフィラメントが製造できるホットメルト樹脂から
なるものであり、ポリアミド共重合樹脂やポリウレタン
樹脂が芳香族ポリアミド繊維系との親和性が高いことか
ら好ましい。The heat-adhesive filament yarn used here is made of hot-melt resin that can be produced into filaments by melt-spinning, and polyamide copolymer resins and polyurethane resins are preferred because they have a high affinity with aromatic polyamide fibers. .
芳香族ポリアミド繊維糸に対する熱接着性フィラメント
糸の撚合わせ混率は、１〜３０％の範囲で選択すればよ
いが、３〜２０％の範囲で実施すると、接着性、風合の
点で特に優れているので好ましい。また、上記混率にす
ることにより、縫糸として使用する際、十分な接着が得
られ、繊維間の相互な結合維持を得ることができる。撚
合わせ混率が１％未満の場合、接着力が乏しく、撚りト
ルクや撚りの移動によるトラブルのため、高張力下での
縫製に耐えられなくなる。一方、３０％以上の場合、十
分な接着効果は得られるものの、風合が硬くなりすぎて
使用しづらい欠点が生じ、コスト面でも不利になるので
好ましくない。The twisting blend ratio of the thermoadhesive filament yarn to the aromatic polyamide fiber yarn may be selected in the range of 1 to 30%, but if it is in the range of 3 to 20%, particularly excellent adhesiveness and texture can be obtained. It is preferable because In addition, by setting the above blending ratio, sufficient adhesion can be obtained when used as a sewing thread, and mutual bonding between fibers can be maintained. If the twisting blend ratio is less than 1%, the adhesive strength will be poor, and troubles due to twisting torque and twist movement will occur, making it impossible to withstand sewing under high tension. On the other hand, if it is 30% or more, although a sufficient adhesive effect can be obtained, the texture becomes too hard, which makes it difficult to use, and it is also disadvantageous in terms of cost, which is not preferable.
本発明では、上述の如くにして得られた撚り糸の表面を
、耐光剤と樹脂で被覆する為コーティング加工する。In the present invention, the surface of the twisted yarn obtained as described above is coated with a light stabilizer and a resin.
本発明に用いる耐光剤としては、芳香族アミン系耐光剤
、ベンゾフェノン系耐光剤、ベンゾトリアゾール型耐光
剤及びフェノール誘導体の耐光剤等がある。芳香族アミ
ン系耐光剤としては、Ｎ−フェニル−１−ナフチルアミ
ン、４．４°−ジオクチルジフェニルアミン、３．７−
シオクチルフエノチアミン、フェニル−α−ナフチルア
ミン、ＮＩＮｏ−ジ−β−ナフチル−ｐ−フェニレンジ
アミン、Ｎ、 Ｎ’−ジフェニル−ｐ−フェニレンジア
ミン、Ｎ−フェニル−Ｎ’−シクロへキシル−ｐ−フェ
ニレンジアミン、Ｎ、Ｎ’−ジー０−）リルエチレンジ
アミン等があり、ベンゾフェノン系耐光剤としては、５
−クロル−２−オキジベンゾフェノン、２−オキシ−４
−メトキシベンゾフェノン、２−ヒドロキシベンゾフェ
ノン、２．２’、４．４ ’−テトラヒドロキシベンゾ
フェノン等があり、ベンゾトリアゾール型耐光剤として
は、ベンゾトリアゾール、メチルベンゾトリアゾール等
があり、フェノール誘導体の耐光剤としては、２，６−
シーｔｅｒｔ−ブチル−４−メチルフェノール、４，４
°−メチレンビス（２，６−シーｔｅｒｔ−ブチルフェ
ノール）、２．２゛−チオビス（４−メチル−５−ｔｅ
ｒｔ−ブチルフェノール）２，６−シーｔｅｒｔ−ブチ
ル−ｐ−クレゾール、２．４．６−）シーｔｅｒｔ−ブ
チルフェノール等がある。Examples of the light stabilizer used in the present invention include aromatic amine light stabilizers, benzophenone light stabilizers, benzotriazole type light stabilizers, and phenol derivative light stabilizers. As the aromatic amine light stabilizer, N-phenyl-1-naphthylamine, 4.4°-dioctyldiphenylamine, 3.7-
Cyoctylphenothiamine, phenyl-α-naphthylamine, NINo-di-β-naphthyl-p-phenylenediamine, N,N'-diphenyl-p-phenylenediamine, N-phenyl-N'-cyclohexyl-p- Examples of benzophenone light stabilizers include phenylenediamine, N,N'-di0-)lylethylenediamine, etc.
-chloro-2-oxybenzophenone, 2-oxy-4
-methoxybenzophenone, 2-hydroxybenzophenone, 2.2', 4.4'-tetrahydroxybenzophenone, etc.; benzotriazole-type light stabilizers include benzotriazole, methylbenzotriazole, etc.; is 2,6-
C-tert-butyl-4-methylphenol, 4,4
°-methylenebis(2,6-tert-butylphenol), 2,2゛-thiobis(4-methyl-5-te
rt-butylphenol) 2,6-tert-butyl-p-cresol, 2.4.6-)tert-butylphenol, and the like.
また、上記耐光剤と併用する樹脂としては、ウレタン系
、アクリル系、ブタジェン系、塩化ビニール系等の樹脂
があり、好ましくは、縫糸の風合よりウレタン系あるい
はシリコン系樹脂を用いるのがよい。Further, as the resin used in combination with the above-mentioned light-resistant agent, there are urethane-based, acrylic-based, butadiene-based, vinyl chloride-based resins, etc., and it is preferable to use urethane-based or silicone-based resins depending on the texture of the sewing thread.
これらの耐光剤と樹脂は、それぞれ１種あるいは２種以
上を混合して用いることもできる。耐光剤と樹脂の使用
割合は、純分濃度で耐光剤１部に対して樹脂５０部以下
とするのがよい。耐光剤と樹脂の混合液を撚り糸の表面
にコーティングする付着量は純分濃度で０．５〜５０ｉ
ＩＩｔ％であり、好ましくは１．０〜３０ｗｔ％である
。付着量が０．５ｗｔ％未滴の場合、耐光剤及び樹脂の
付着量が少ないため耐光性に乏しく、また縫糸表面の毛
羽立ち防止効果が得られない。−刃付着量が５０ｗｔ％
以上の場合は、耐光性は満足出来るものの、風合が硬く
なり使用しづらくなる欠点が生じてくる。These light stabilizers and resins can be used alone or in combination of two or more. The ratio of the light stabilizer to the resin used is preferably 50 parts or less of the resin to 1 part of the light stabilizer in pure concentration. The amount of coating of the mixture of light stabilizer and resin on the surface of the twisted yarn is 0.5 to 50i in terms of pure concentration.
IIt%, preferably 1.0 to 30 wt%. If the amount of adhesion is 0.5 wt %, the amount of the light-fastening agent and resin attached is small, resulting in poor light resistance, and the effect of preventing fuzzing on the surface of the sewing thread cannot be obtained. -Blade adhesion amount is 50wt%
In the above cases, although the light resistance is satisfactory, the texture becomes hard and it becomes difficult to use.
上記耐光剤と樹脂の混合液を撚り糸の表面にコーティン
グする方法としては、撚り糸を連続的に混合液に浸漬し
、次いでマングルニップロールで絞って付着量を調整す
る方法がよい。A good method for coating the surface of the threads with the mixture of the light stabilizer and resin is to continuously immerse the threads in the mixture and then squeeze with a mangle nip roll to adjust the amount of adhesion.
本発明では、耐光剤と樹脂の混合液を撚り糸の表面にコ
ーティングした後、引き続き熱処理を行う。この熱処理
は、乾燥と樹脂の固着の為と共に熱接着フィラメント糸
を溶融させ、芳香族ポリアミド繊維糸１．１．１を互い
に接着する為に行う。In the present invention, after coating the surface of the twisted yarn with a mixed solution of a light stabilizer and a resin, heat treatment is subsequently performed. This heat treatment is carried out not only for drying and fixation of the resin but also for melting the heat-adhesive filament threads and bonding the aromatic polyamide fiber threads 1.1.1 to each other.
熱処理は２通常の乾熱連続処理であり、乾燥温度は８０
〜１４０℃、固着温度は１４０〜２３０℃で処理時間は
１０〜１２０秒である。The heat treatment is 2 normal continuous dry heat treatments, and the drying temperature is 80℃.
-140°C, fixing temperature is 140-230°C, and processing time is 10-120 seconds.
（作 用）
本発明のごとく、熱接着性フィラメント糸を芳香族ポリ
アミド繊維糸間の真ん中に配置して熱溶融により相互に
結合させると、撚の移動、いわゆるトルクの再現をなく
すことができ、しかも繊維糸間が相互に接着していると
、縫製時の毛羽立ち防止に役立つとともに、強度維持に
つながり、その結果、本発明の縫糸は、高張力下での縫
製を可能にすることができる。(Function) As in the present invention, when the heat-adhesive filament yarn is placed in the middle between the aromatic polyamide fiber yarns and bonded to each other by thermal melting, twist movement, so-called torque reproduction, can be eliminated. Moreover, when the fiber threads are bonded to each other, it helps to prevent fuzzing during sewing and maintains strength. As a result, the sewing thread of the present invention can be sewn under high tension.
また、耐光剤を樹脂と共に表面に付着させることにより
、縫製時の摩耗による毛羽立ちを防ぐと共に、耐光性の
優れた縫糸とすることが出来る。Furthermore, by attaching a light-fastening agent to the surface together with a resin, it is possible to prevent fluffing due to abrasion during sewing and to obtain a sewing thread with excellent light resistance.
（実施例）
以下、本発明を実施例により説明するが、実施例におけ
る試料の性能の測定、評価は、次の方法にて行った。(Example) The present invention will be described below with reference to Examples. The performance of the samples in the Examples was measured and evaluated by the following method.
（１）熱接着性フィラメント糸の混率
作成撚り糸の繊度に対する熱接着性フィラメント糸の繊
度より、百分率（％）にて算出した。(1) Creation of blending ratio of heat-adhesive filament yarn It was calculated as a percentage (%) from the fineness of the heat-adhesive filament yarn relative to the fineness of the twisted yarn.
（２）接着強力
熱接着処理を行った作成縫糸を、予約５ ｃｍ撚戻した
後、自記記録式引張試験機にて、複数の構成糸のうちの
１本を１つのつかみで把持し、残りを他のつかみで把持
して、つかみ間隔５ｃｍ、引張速度１０ｃｍ／ｍｉｎの
条件で接着強力（ｇ）を測定した。(2) Adhesion After untwisting the sewing threads that have been treated with strong thermal adhesive treatment by a reserved length of 5 cm, use a self-recording tensile tester to grasp one of the plurality of constituent threads with one grip, and then was gripped with another grip, and the adhesive strength (g) was measured under conditions of a grip interval of 5 cm and a pulling speed of 10 cm/min.
（３）縫糸強力
作成した縫糸を、自記記録式引張試験機を用いて、試料
長２５ｃｍ、引張速度１０ｃｍ／ｍｉｎの条件にて縫糸
強力（ｋｇ）を測定した。(3) Sewing strength The thread strength (kg) of the prepared sewing thread was measured using a self-recording tensile tester under conditions of a sample length of 25 cm and a tensile speed of 10 cm/min.
（４）糸切れ張力
１本針本縫上下送りミシンを用いて、幅４８、８ ｍｍ
、厚み１．１５ ｍｍ、織密度径１７２本／吋、緯１８
．５本／吋のシートベルトを２本重ねて、ミシン回転数
３５００針／分、縫目１２目合／１０ｃｍにて縫製した
ときの最高糸切れ張力を味金井工機製チエツクマスター
張力計にて測定し、評価した。(4) Thread breakage tension: Width 48.8 mm using a single-needle lockstitch top-feed sewing machine.
, thickness 1.15 mm, weave density diameter 172 threads/inch, weft 18
．． The maximum thread breakage tension was measured using a checkmaster tension meter made by Ajikanei Koki when sewing two 5 seat belts with a sewing machine rotation speed of 3500 stitches/minute and a stitch interval of 12 stitches/10 cm. and evaluated.
（５）強力保持率
作成した縫糸をカーボンフェードメーター（６３℃）に
て、１００時間、３００時間及５００時間照射後、縫糸
強力を測定し、次式により未照射時の縫糸強力に対する
保持率を求めた。(5) Strength retention rate After irradiating the created sewing thread for 100 hours, 300 hours and 500 hours using a carbon fade meter (63℃), measure the strength of the sewing thread, and use the following formula to calculate the retention rate for the strength of the sewing thread when not irradiated. I asked for it.
実施例１
通常のリング撚糸機に回転式ベアリングガイドを取付け
、芳香族ポリアミド繊維３７５ｄ／２５０ｆ（オランダ
、エンカ社製、商品名：トワロン）をＳ方向に３００
Ｔ／Ｍ施撫し、下撚糸条を得た。Example 1 A rotary bearing guide was attached to an ordinary ring twisting machine, and aromatic polyamide fiber 375d/250f (manufactured by Enka, Netherlands, trade name: Twaron) was twisted in the S direction by 300 mm.
T/M caress was performed to obtain a pre-twisted yarn.
次に、この下撚糸条３本を、各々ニップローラーを通し
、撚込みガイドの各々のスリット穴４ａに導いた。一方
、乾熱溶融温度１００℃のポリアミド共重合樹脂よりな
る熱接着性フィラメント５０ｄ／７ｆ（ユニチカ■製、
商品名：フロールＭ）を１本、ニップローラーを介さず
直接撚込みガイド４のスリット穴４ｂに導き、芳香族ポ
リアミド繊維下撚糸条３本と一緒にＺ方向に１５８Ｔ／
Ｍの上撚を行った。このときの熱接着性フィラメントの
撚込みガイドへ送り込む張力は２０ｇ１芳香族ポリアミ
ド繊維下撚糸条の張力は６０ｇとした。Next, each of the three pre-twisted yarns was guided through a nip roller and into each slit hole 4a of the twisting guide. On the other hand, heat-adhesive filaments 50d/7f made of polyamide copolymer resin with a dry heat melting temperature of 100°C (manufactured by Unitika ■,
One strand of Flor M) (product name: Flor M) is directly guided into the slit hole 4b of the twisting guide 4 without using a nip roller, and twisted in the Z direction together with the three aromatic polyamide fiber lower twisted yarns.
Ply twisting of M was performed. At this time, the tension at which the thermoadhesive filaments were fed into the twisting guide was 20 g.The tension at which the aromatic polyamide fibers were twisted was 60 g.
次いで得られた撚り糸を下記に示す耐光剤と樹脂の混合
液に浸漬し１０ｍ／分で引出し、ニップ圧２ ｋｇ ／
ｃｎｆのマングルにて絞り、引き続いて温度１００℃
、処理時間４５秒の乾燥と温度１８０℃処理時間４５秒
の固着処理を連続して行った。この時の耐光剤及び樹脂
の付着量は純分濃度で１．８ｗｔ％であった。Next, the obtained twisted yarn was immersed in the mixture of light stabilizer and resin shown below and pulled out at 10 m/min, with a nip pressure of 2 kg/min.
Squeezed with cnf mangle and then heated to 100℃
A drying process for a treatment time of 45 seconds and a fixing treatment for a treatment time of 45 seconds at a temperature of 180° C. were performed successively. At this time, the adhesion amount of the light stabilizer and resin was 1.8 wt % in terms of pure concentration.
・耐光剤と樹脂の混合液の処方
スミライザー〇Ａ−８００，７部
（ベンゾフェノン系耐光剤 住人化学工業■製）サンプ
ユバ−３２２５０，７部
（ベンゾトリゾール系耐光剤 サンド■製）スミソーフ
ＴＴＭＯ６１０，７部
（芳香族アミン系耐光剤 住人化学工業■製）アイゼラ
ツクス３４０４０ １５部（ウレタン系樹脂
保土谷化学＠Ｊ製）希釈水
８３．６部比較例１
本発明との比較のため、実施例１で用いた熱接着性フィ
ラメントを用いず、また、撚込みガイド４に代えて通常
のスネールガイドを用いて撚糸を行い、耐光剤と樹脂の
混合液の浸漬、乾燥、固着処理を行わない以外は、実施
例１と全く同じ条件にて比較用の縫糸を得た。・Formulation of a mixture of light stabilizer and resin Sumilizer A-800, 7 parts (benzophenone light stabilizer manufactured by Sumima Kagaku Kogyo ■) Sampyuba-32250, 7 parts (benzotrisol type light stabilizer manufactured by Sand ■) Sumisofu TTMO610,7 15 parts (Aromatic amine light stabilizer manufactured by Sumima Kagaku Kogyo) Igelax 34040 (Urethane resin)
Hodogaya Chemical @J) dilution water
83.6 parts Comparative Example 1 For comparison with the present invention, the heat-adhesive filament used in Example 1 was not used, and a normal snail guide was used instead of the twisting guide 4 to twist the yarn. A comparative sewing thread was obtained under exactly the same conditions as in Example 1, except that immersion in the mixed solution of the agent and resin, drying, and fixing treatment were not performed.
本発明および比較用の縫糸の性能を測定し、その結果を
合わせて第１表に示した。The performance of the sewing thread of the present invention and the comparative thread was measured, and the results are shown in Table 1.
第１表より明らかなように、実施例１の縫糸は、比較例
１の縫糸に比べて縫糸強力、接着強力、糸切れ張力のす
べてに優れ、フェードメーター照射後の強力保持率も優
れている。As is clear from Table 1, the sewing thread of Example 1 is superior to the sewing thread of Comparative Example 1 in all of sewing thread strength, adhesive strength, and thread breakage tension, and is also superior in strength retention after fade meter irradiation. .
（発明の効果）
本発明の縫糸は、撚合わされた芳香族ポリアミド繊維糸
が、縫糸の中心部付近で熱接着性フィラメント糸により
相互に結合されているため、撚の移動、いわゆるトルク
の再現が起こらず、そのうえ繊維糸間が相互に接着して
いることから、縫製時の毛羽立ち防止や強度維持につな
がり、従って、本発明の縫糸は、高速かつ高張力での縫
製でも縫製性が低下したりすることのない優れた効果を
発揮することができる。(Effects of the Invention) In the sewing thread of the present invention, the twisted aromatic polyamide fiber threads are mutually connected near the center of the thread by heat-adhesive filament threads, so that movement of the twist, so-called torque, cannot be reproduced. Moreover, since the fiber threads are bonded to each other, this helps prevent fuzzing and maintains strength during sewing. Therefore, the sewing thread of the present invention does not cause a decrease in stitchability even when sewn at high speed and under high tension. It is possible to achieve excellent effects that have never been seen before.
また、本発明の縫糸は芳香族ポリアミド繊維糸が耐光剤
を含む樹脂で被覆されていることから、光の下でも縫糸
の強力低下が少なくより信頼性のある縫製品を供給出来
る縫糸である。In addition, since the sewing thread of the present invention has an aromatic polyamide fiber thread coated with a resin containing a light-resistant agent, the sewing thread has less strength loss even under light and can provide more reliable sewn products.
第１図は、本発明の縫糸を製造するだめの撚糸機を例示
する概略図、第２図は、上撚工程に用いる撚込みガイド
の拡大図、第３図は、本発明の縫糸の拡大断面図である
。
１ 下撚施撚後の芳香族ｌリアミド繊維糸２
熱接着性フィラメント糸
３ ニップローラー
４ 撚込みガイド
４ａ、 ４ｂ−スリット穴
５ トラベラ
６ 捲取りボビン
７ 耐光剤及び樹脂の層FIG. 1 is a schematic diagram illustrating a final twisting machine for producing the sewing thread of the present invention, FIG. 2 is an enlarged view of the twisting guide used in the ply twisting process, and FIG. 3 is an enlarged view of the sewing thread of the present invention. FIG. 1 Aromatic L-lyamide fiber yarn after first twisting 2
Heat adhesive filament yarn 3 Nip roller 4 Twisting guides 4a, 4b - slit holes 5 Traveler 6 Winding bobbin 7 Light stabilizer and resin layer
Claims (1)
撚合わせてなる縫糸であって、上記芳香族ポリアミド繊
維糸同士が、縫糸の中心部付近で熱接着性フィラメント
糸の熱溶融により互いに結合されてなり、かつ縫糸の表
面が耐光剤を含む樹脂で被覆されてなることを特徴とす
る耐光・耐熱性高強力縫糸。(1) A sewing thread made by twisting a plurality of high-strength, low-elongation aromatic polyamide fiber threads, in which the aromatic polyamide fiber threads are bonded together by thermal melting of heat-adhesive filament threads near the center of the thread. A light-resistant, heat-resistant, high-strength sewing thread characterized in that the threads are bonded to each other and the surface of the thread is coated with a resin containing a light-resistant agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33913790A JPH04202824A (en) | 1990-11-29 | 1990-11-29 | Light-and heat-resistant high-tenacity sewing thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33913790A JPH04202824A (en) | 1990-11-29 | 1990-11-29 | Light-and heat-resistant high-tenacity sewing thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04202824A true JPH04202824A (en) | 1992-07-23 |
Family
ID=18324592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33913790A Pending JPH04202824A (en) | 1990-11-29 | 1990-11-29 | Light-and heat-resistant high-tenacity sewing thread |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04202824A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704083A (en) * | 2012-05-30 | 2012-10-03 | 单水甫 | Yarn guiding device |
| JP2015520305A (en) * | 2012-05-21 | 2015-07-16 | エルジー・ハウシス・リミテッドＬｇ Ｈａｕｓｙｓ，Ｌｔｄ． | Raw yarn for fluff prevention and woven floor decoration using the same |
-
1990
- 1990-11-29 JP JP33913790A patent/JPH04202824A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015520305A (en) * | 2012-05-21 | 2015-07-16 | エルジー・ハウシス・リミテッドＬｇ Ｈａｕｓｙｓ，Ｌｔｄ． | Raw yarn for fluff prevention and woven floor decoration using the same |
| CN102704083A (en) * | 2012-05-30 | 2012-10-03 | 单水甫 | Yarn guiding device |
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