JP2001123332A5

JP2001123332A5 -

Info

Publication number: JP2001123332A5
Application number: JP1999299497A
Authority: JP
Filing date: 1999-10-21
Publication date: 2006-04-06
Anticipated expiration: 2019-10-21

Description

また、構成炭素数６〜１２の脂肪族ジカルボン酸及び／又は脂環式ジカルボン酸が５モル％を越えると、ポリマーチップの融着、あるいは得られる熱接着性複合繊維の膠着が起こり易くなって、チップ化工程、繊維製造工程でのトラブルが多発し、さらには、不織布製造工程で装置への粘着、融着が起こるため好ましくない。脂肪族ジカルボン酸の量は４モル％以下が好ましく、３モル％以下が更に好ましい。更に、該構成炭素数が６未満では低温での熱接着性が低下し、１２を越えるとポリマーチップの融着、繊維の膠着及び不織布製造工程での装置への粘着、融着が起こり不適当である。 Further, when the content of the aliphatic dicarboxylic acid having 6 to 12 carbon atoms and / or the alicyclic dicarboxylic acid exceeds 5 mol%, fusion of the polymer chips or adhesion of the obtained heat-adhesive composite fiber is likely to occur. , Trouble occurs frequently in the chipping process and the fiber manufacturing process, and further, adhesion and fusion to the apparatus occur in the non-woven fabric manufacturing process, which is not preferable. The amount of the aliphatic dicarboxylic acid is preferably 4 mol% or less, more preferably 3 mol% or less. Further, if the number of constituent carbon atoms is less than 6, the thermal adhesiveness at a low temperature is lowered, and if it exceeds 12, fusion of polymer chips, adhesion of fibers, adhesion to the apparatus in the non-woven fabric manufacturing process, and fusion occur, which is inappropriate. Is.

【００２６】
【実施例】
以下、実施例を挙げて更に具体的に説明するが、本発明はこれに限定されるものではない。なお実施例中の部は重量部を示す。また各種特性は下記の方法により評価した。
（１）固有粘度［η］：
オルトクロルフェノールを溶媒として３０℃で測定し、その相対粘度から常法により求めた。
（２）接着強度：
ＪＩＳＬ１０９６記載の方法に準拠して、つかみ間隔１０ｃｍ、伸長速度２０ｃｍ／分にて引張破断力を測定した。接着強度は、引張破断力を試験片重量で除した値とした。
（３）チップ融着：
ポリマーをチップカッターで切断する際に、チップ同士の融着が発生しなかった場合を○、融着が少しでも発生した場合を×で示した。
（４）繊維膠着：
熱接着性複合繊維の紡糸時および／または延伸時に繊維間の膠着が発生しなかった場合を○、少しでも膠着が発生した場合を×で示した。
（５）不織布製造装置への粘着：
不織布製造工程において、製造装置への熱接着性複合繊維の粘着・融着が発生しなかった場合を○、少しでも粘着・融着が発生した場合を×で示した。 0026
【Example】
Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited thereto. The part in the example shows the weight part. In addition, various characteristics were evaluated by the following methods.
(1) Intrinsic viscosity [η]:
The measurement was carried out at 30 ° C. using orthochlorophenol as a solvent, and the relative viscosity was determined by a conventional method.
(2) Adhesive strength:
The tensile breaking force was measured at a gripping interval of 10 cm and an extension speed of 20 cm / min according to the method described in JIS L1096. The adhesive strength was defined as the tensile breaking force divided by the weight of the test piece.
(3) Chip fusion:
When the polymer was cut with a chip cutter, the case where the chips did not fuse with each other was indicated by ◯, and the case where even a small amount of fusion occurred was indicated by ×.
(4) Fiber sticking:
The case where no adhesion between the fibers occurred during spinning and / or drawing of the heat-adhesive composite fiber was indicated by ◯, and the case where even a small amount of adhesion occurred was indicated by ×.
(5) Adhesion to non-woven fabric manufacturing equipment:
In nonwoven fabric manufacturing process, the case where the pressure-sensitive adhesive and fusion of the thermoadhesive conjugate fiber of the manufacturing apparatus did not occur ○, indicated by × a case where the adhesive and fused occurred even a little.

次いで、得られた反応生成物を撹拌機及びグリコール留出コンデンサーを設けた別の反応器に移し、２１０℃から２６５℃に徐々に昇温すると共に、常圧から７０Ｐａの高真空に圧力を下げながら重合反応を行なった。反応系の溶融粘度を追跡し、固有粘度［η］が０．６７となる時点で重合反応を打ち切った。 Next, the obtained reaction product was transferred to another reactor provided with a stirrer and a glycol distilling condenser, the temperature was gradually raised from 210 ° C. to 265 ° C., and the pressure was lowered from normal pressure to a high vacuum of 70 Pa. However, the polymerization reaction was carried out. The melt viscosity of the reaction system to track intrinsic viscosity [eta] has aborted the polymerization reaction at the time of 0.6 7.