JP2011252247A - Aramid fiber with improved brightness and producing method of the same - Google Patents
Aramid fiber with improved brightness and producing method of the same Download PDFInfo
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- 229920006231 aramid fiber Polymers 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title abstract description 20
- 239000007850 fluorescent dye Substances 0.000 claims abstract description 24
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- 230000008961 swelling Effects 0.000 claims abstract description 17
- 238000004043 dyeing Methods 0.000 claims description 32
- 238000004519 manufacturing process Methods 0.000 claims description 5
- PJANXHGTPQOBST-VAWYXSNFSA-N Stilbene Natural products C=1C=CC=CC=1/C=C/C1=CC=CC=C1 PJANXHGTPQOBST-VAWYXSNFSA-N 0.000 claims description 2
- PJANXHGTPQOBST-UHFFFAOYSA-N stilbene Chemical compound C=1C=CC=CC=1C=CC1=CC=CC=C1 PJANXHGTPQOBST-UHFFFAOYSA-N 0.000 claims description 2
- 235000021286 stilbenes Nutrition 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 1
- 238000009981 jet dyeing Methods 0.000 abstract 1
- 239000004760 aramid Substances 0.000 description 19
- 239000004744 fabric Substances 0.000 description 13
- 239000007788 liquid Substances 0.000 description 9
- LEBQTCCCNMTXSF-UHFFFAOYSA-N (2,5-dimethylphenyl)methanol Chemical compound CC1=CC=C(C)C(CO)=C1 LEBQTCCCNMTXSF-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 6
- 229920003235 aromatic polyamide Polymers 0.000 description 6
- 239000002759 woven fabric Substances 0.000 description 6
- 239000000975 dye Substances 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 4
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 4
- 238000004061 bleaching Methods 0.000 description 4
- UBIAVBGIRDRQLD-UHFFFAOYSA-N 5-methyl-1,3-benzoxazole Chemical compound CC1=CC=C2OC=NC2=C1 UBIAVBGIRDRQLD-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- BWRBVBFLFQKBPT-UHFFFAOYSA-N (2-nitrophenyl)methanol Chemical compound OCC1=CC=CC=C1[N+]([O-])=O BWRBVBFLFQKBPT-UHFFFAOYSA-N 0.000 description 2
- OIGWAXDAPKFNCQ-UHFFFAOYSA-N 4-isopropylbenzyl alcohol Chemical compound CC(C)C1=CC=C(CO)C=C1 OIGWAXDAPKFNCQ-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- ZYGHJZDHTFUPRJ-UHFFFAOYSA-N coumarin Chemical compound C1=CC=C2OC(=O)C=CC2=C1 ZYGHJZDHTFUPRJ-UHFFFAOYSA-N 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 238000009940 knitting Methods 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- ICJVQAHPHKYCNU-UHFFFAOYSA-N (2-ethoxyphenyl)methanol Chemical compound CCOC1=CC=CC=C1CO ICJVQAHPHKYCNU-UHFFFAOYSA-N 0.000 description 1
- WYLYBQSHRJMURN-UHFFFAOYSA-N (2-methoxyphenyl)methanol Chemical compound COC1=CC=CC=C1CO WYLYBQSHRJMURN-UHFFFAOYSA-N 0.000 description 1
- ZSRDNPVYGSFUMD-UHFFFAOYSA-N (3-chlorophenyl)methanol Chemical compound OCC1=CC=CC(Cl)=C1 ZSRDNPVYGSFUMD-UHFFFAOYSA-N 0.000 description 1
- OOCCDEMITAIZTP-QPJJXVBHSA-N (E)-cinnamyl alcohol Chemical compound OC\C=C\C1=CC=CC=C1 OOCCDEMITAIZTP-QPJJXVBHSA-N 0.000 description 1
- KWHVBVJDKLSOTB-UHFFFAOYSA-N 2-(3-methylphenyl)ethanol Chemical compound CC1=CC=CC(CCO)=C1 KWHVBVJDKLSOTB-UHFFFAOYSA-N 0.000 description 1
- DAVFJRVIVZOKKS-UHFFFAOYSA-N 2-(4-methylphenyl)ethanol Chemical compound CC1=CC=C(CCO)C=C1 DAVFJRVIVZOKKS-UHFFFAOYSA-N 0.000 description 1
- QGCCNWSXJHGUNL-UHFFFAOYSA-N 3-iodo-benzyl alcohol Chemical compound OCC1=CC=CC(I)=C1 QGCCNWSXJHGUNL-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- MSHFRERJPWKJFX-UHFFFAOYSA-N 4-Methoxybenzyl alcohol Chemical compound COC1=CC=C(CO)C=C1 MSHFRERJPWKJFX-UHFFFAOYSA-N 0.000 description 1
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 description 1
- 239000005695 Ammonium acetate Substances 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- ZCQWOFVYLHDMMC-UHFFFAOYSA-N Oxazole Chemical compound C1=COC=N1 ZCQWOFVYLHDMMC-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- 235000011054 acetic acid Nutrition 0.000 description 1
- 150000008043 acidic salts Chemical class 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- OOCCDEMITAIZTP-UHFFFAOYSA-N allylic benzylic alcohol Natural products OCC=CC1=CC=CC=C1 OOCCDEMITAIZTP-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 235000019257 ammonium acetate Nutrition 0.000 description 1
- 229940043376 ammonium acetate Drugs 0.000 description 1
- VZTDIZULWFCMLS-UHFFFAOYSA-N ammonium formate Chemical compound [NH4+].[O-]C=O VZTDIZULWFCMLS-UHFFFAOYSA-N 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 235000001671 coumarin Nutrition 0.000 description 1
- 229960000956 coumarin Drugs 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- QILSFLSDHQAZET-UHFFFAOYSA-N diphenylmethanol Chemical compound C=1C=CC=CC=1C(O)C1=CC=CC=C1 QILSFLSDHQAZET-UHFFFAOYSA-N 0.000 description 1
- 239000000986 disperse dye Substances 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- -1 methylphenethyl alcohol Chemical compound 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000012192 staining solution Substances 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Abstract
Description
本発明は、綿、ポリエステルなど汎用繊維に比べ黄白色生機であるアラミド繊維において、色相を改善した、白度向上したアラミド繊維及びその製造方法に関する。 The present invention relates to an aramid fiber having improved whiteness and improved whiteness in an aramid fiber which is a yellowish white green compared with general-purpose fibers such as cotton and polyester, and a method for producing the same.
アラミド繊維は、高い機械強度と耐熱性、並びに難燃性を有し、それらは特に、消防士、宇宙飛行士、及びパイロットのための服のデザインにおいて、火災又は高温と接触する事を意図した織物繊維として広く使用される。
また前記メタアラミド繊維は、結晶性が高く分子間結合力が強固な分子構造を有しており、そのため難染性を示し、たとえば染色できても洗濯などですぐに染料が脱落してしまうなど、従来の染色技術では着色することが難しいという問題があった。
Aramid fibers have high mechanical strength and heat resistance, as well as flame retardancy, and they are intended to come into contact with fire or high temperatures, especially in the design of clothes for firefighters, astronauts, and pilots Widely used as textile fiber.
In addition, the meta-aramid fiber has a molecular structure with high crystallinity and strong intermolecular bonding force, and therefore exhibits a difficult dyeing property. There is a problem that it is difficult to color with conventional dyeing techniques.
このような問題を解決する方法として、下記特許文献には、分散染料及びカチオン染料等による前記メタアラミド繊維の染色方法が開示されている。たとえば、特許文献１には、パラ系アラミド繊維を７０℃以上のジメチルスルフォキシドで前処理した後に染色する方法、特許文献２には、パラ系アラミド繊維をＮ−メチル−２−ピロリドンで前処理した後に染色する方法、特許文献３には、パラ系アラミド繊維をジメチルホルムアミドとＮ−メチル−２−ピロリドン及び／又はジメチルスルフォキシドとの混合液で前処理した後に染色する方法、特許文献４には、パラ系アラミド繊維を７０℃以上のジメチルスルフォキシドで前処理した後に染着し、さらに１５０〜２００℃で熱処理することで繊維の収縮をある程度回復させ染料を繊維内部に固定させる方法、特許文献５には、カチオン系染料によってパラ系アラミド繊維を染色する場合においてキャリアーを用いる方法、特許文献６には、メタ系アラミド繊維を超臨界二酸化炭素中で染色する際、極性溶剤を用いる方法が開示されている。 As a method for solving such a problem, the following patent document discloses a method for dyeing the meta-aramid fiber with a disperse dye, a cationic dye, or the like. For example, Patent Document 1 discloses a method in which para-aramid fibers are pretreated with dimethyl sulfoxide at 70 ° C. or higher, and Patent Document 2 discloses that para-aramid fibers are pre-treated with N-methyl-2-pyrrolidone. Method of dyeing after treatment, Patent Document 3 includes a method of dyeing para-aramid fibers after pretreatment with a mixed solution of dimethylformamide and N-methyl-2-pyrrolidone and / or dimethyl sulfoxide, Patent Document In No. 4, para-aramid fibers are pre-treated with dimethyl sulfoxide at 70 ° C. or higher and then dyed, and further heat-treated at 150 to 200 ° C. to recover the contraction of the fibers to some extent and fix the dye inside the fibers. Patent Document 5 describes a method using a carrier when dyeing para-aramid fibers with a cationic dye. When dyeing the meta-aramid fibers in supercritical carbon dioxide, a method using a polar solvent is disclosed.
上記のように、従来のポリアミド繊維の染色方法は、特殊な薬品などを用いる前処理を必要としたり、超臨界二酸化炭素中での染色を必要としたりするなど、染色が煩雑であるといった問題点を有している。また、上記方法は、何れもメタアラミド繊維からなる布帛の染色において、白度向上するのに適した方法とは言えないものである。
一方、白度向上を目的にて処理（前加工）する場合、漂白処理が行われるが、アラミド繊維からなる布帛においては、当該漂白処理にて十分な漂白を行うことできず、該方法では白度を向上させることができないといった問題がある。
As described above, the conventional polyamide fiber dyeing method requires a pretreatment using special chemicals or the like, or requires dyeing in supercritical carbon dioxide. have. In addition, none of the above methods can be said to be a method suitable for improving whiteness in dyeing a fabric made of meta-aramid fibers.
On the other hand, in the case of processing (pre-processing) for the purpose of improving whiteness, bleaching is performed. However, in a fabric made of aramid fibers, sufficient bleaching cannot be performed by the bleaching, and in this method, whitening is performed. There is a problem that the degree cannot be improved.
本発明は、上記問題に鑑みなされたもので、アラミド繊維の白度を顕著に向上させることができる白度向上したアラミド繊維及びその製造方法を提供することを目的とする。 The present invention has been made in view of the above problems, and an object of the present invention is to provide an aramid fiber with improved whiteness that can remarkably improve the whiteness of an aramid fiber and a method for producing the same.
本発明者が検討したところ、以下の方法により上記の課題を解決できることを見出した。すなわち本発明は、アラミド繊維が、蛍光染料と膨潤剤を用いて染色されていることを特徴とする白度向上したアラミド繊維である。また、アラミド繊維を、蛍光染料と膨潤剤を用いて液流染色を行うことを特徴とする白度向上したアラミド繊維の製造方法である。 As a result of investigation by the present inventor, it has been found that the above problem can be solved by the following method. That is, the present invention is an aramid fiber with improved whiteness, wherein the aramid fiber is dyed with a fluorescent dye and a swelling agent. Further, the present invention is a method for producing an aramid fiber with improved whiteness, characterized in that aramid fiber is subjected to liquid flow dyeing using a fluorescent dye and a swelling agent.
本発明によれば、アラミド繊維において、蛍光染料と膨潤剤とを用いて、液流染色することにより白度向上が可能となり、これまで不可能であった白（ホワイトカラー）が提供できる。 According to the present invention, whiteness can be improved by liquid-flow dyeing aramid fiber using a fluorescent dye and a swelling agent, and white (white color) that has been impossible until now can be provided.
以下に本発明を詳細に説明する。本発明で用いるアラミド繊維は、合成ポリアミド鎖を含み、鎖中ではアミド基の少なくとも８５％が芳香族基に直接結合しているものである。また、本発明で用いるアラミド繊維は、これを含む編物、織物、不織布等いずれの形状であっても良い。またアラミド繊維は単体での使用または、羊毛、ポリエステル、セルロース、ポリアクリロニトリル、絹等と混紡、交織、交編等で用いても差し支えない。 The present invention is described in detail below. The aramid fiber used in the present invention includes a synthetic polyamide chain in which at least 85% of the amide groups are directly bonded to the aromatic group. Further, the aramid fiber used in the present invention may have any shape such as a knitted fabric, a woven fabric, and a nonwoven fabric containing the aramid fiber. The aramid fiber may be used alone or in combination with wool, polyester, cellulose, polyacrylonitrile, silk, etc., or in knitting or knitting.
本発明においては、上記アラミド繊維が、蛍光染料と膨潤剤とを用いて染色されていることが肝要である。一般に、アラミド繊維の白度を上げる方法として、漂白処理が採用されるが、われわれが検討したところ、アラミド繊維を漂白処理しても十分な白度が得られなかった。そこで、さらに検討を進め、アラミド繊維において、蛍光染料と膨潤剤を含む染色液で処理することで、白度向上が可能となることを見出したものである。しかも後述するように、液流染色により行うことができ、該染色方法の特徴もそのまま生し、優れた白度を有するアラミド繊維が得られることが確認された。
また、アラミド繊維の染色には通常に用いない綿用の蛍光染料を用いたところ、アラミド繊維では高い白度向上効果が得られるがことがわかった。
In the present invention, it is important that the aramid fiber is dyed using a fluorescent dye and a swelling agent. In general, bleaching is adopted as a method for increasing the whiteness of aramid fibers. However, as a result of our study, sufficient whiteness could not be obtained even when aramid fibers were bleached. Therefore, further investigation has been made, and it has been found that whiteness can be improved by treating aramid fibers with a staining solution containing a fluorescent dye and a swelling agent. Moreover, as will be described later, it was confirmed that the aramid fiber having excellent whiteness can be obtained by using the dyeing method with the liquid flow dyeing and producing the characteristics of the dyeing method as they are.
In addition, when a fluorescent dye for cotton that is not normally used is used for dyeing aramid fibers, it has been found that aramid fibers have a high whiteness improving effect.
上記蛍光染料としては、例えば、スチルベン系、クマリン系、イミダゾール系、トリアゾール系、オキサゾール系などを例示することができ、中でもスチルベン系、特に青み付け染料を配合した２’２−（１，２−エテンジニル）ビス（５−メチルベンズオキサゾ−ル）系蛍光染料が好ましい。また、具体的な商品としては、昭和化工製の綿用蛍光染料イルミナールＢＧＦを好ましく例示することができる。さらにかかる、２’２−（１，２−エテンジニル）ビス（５−メチルベンズオキサゾ−ル）系蛍光染料では、実用上問題のない耐光性を備えていることもわかった。
また、上記蛍光染料を用いるだけでは十分な白度向上効果が得られず、膨潤剤を用いて染色することによって、アラミド繊維の白度を向上させることができる。
Examples of the fluorescent dye include stilbene-based, coumarin-based, imidazole-based, triazole-based, and oxazole-based compounds. Among them, 2'2- (1,2- Ethenedinyl) bis (5-methylbenzoxazole) based fluorescent dye is preferred. Moreover, as a specific product, the fluorescent dye Illuminal BGF for cotton manufactured by Showa Kako can be preferably exemplified. Furthermore, it was also found that such 2′2- (1,2-ethenedinyl) bis (5-methylbenzoxazole) -based fluorescent dye has light resistance with no practical problem.
Further, the whiteness of the aramid fibers can be improved by dyeing with a swelling agent, since a sufficient whiteness improvement effect cannot be obtained only by using the fluorescent dye.
上記膨潤剤としては、例えば、ＤＬ−β−エチルフェネチルアルコール、２−エトキシベンジルアルコール、３−クロロベンジルアルコール、２，５−ジメチルベンジルアルコール、２−ニトロベンジルアルコール、ｐ−イソプロピルベンジルアルコール、２−メチルフェネチルアルコール、３−メチルフェネチルアルコール、４−メチルフェネチルアルコール、２−メトキシベンジルアルコール、３−ヨードベンジルアルコール、ケイ皮アルコール、ｐ−アニシルアルコールおよびベンズヒドロールの中から選ばれる少なくとも一種であることが好ましい。また具体的な商品としては、ベンジルアルコール、ダウケミカル製ダワノールＰＰＨ、ＢＯＺＺＥＴＴＯ製ＣＩＮＤＹＥ ＤＮＫが望ましい。また、白度をより向上させる点で、ベンジルアルコール、中でも、２，５−ジメチルベンジルアルコールまたは２−ニトロベンジルアルコールを用いることが好ましい。 Examples of the swelling agent include DL-β-ethylphenethyl alcohol, 2-ethoxybenzyl alcohol, 3-chlorobenzyl alcohol, 2,5-dimethylbenzyl alcohol, 2-nitrobenzyl alcohol, p-isopropylbenzyl alcohol, 2- It is at least one selected from methylphenethyl alcohol, 3-methylphenethyl alcohol, 4-methylphenethyl alcohol, 2-methoxybenzyl alcohol, 3-iodobenzyl alcohol, cinnamic alcohol, p-anisyl alcohol, and benzhydrol. It is preferable. As specific products, benzyl alcohol, Dow Chemical's Dawanol PPH, and BOZZETTO's CINDYE DNK are desirable. Moreover, it is preferable to use benzyl alcohol, especially 2, 5- dimethyl benzyl alcohol or 2-nitro benzyl alcohol from the point which improves whiteness more.
本発明において、蛍光染料の付着量は、アラミド繊維１００重量％に対して１〜２０重量部が好ましく、５〜１５重量％がより好ましい。蛍光染料の付着量が、１重量％未満では十分な白度向上効果が得られない傾向にあり、一方、２０重量％を越えてもさらなる白度向上効果は得られず経済的観点から好ましくない。 In this invention, 1-20 weight part is preferable with respect to 100 weight% of aramid fibers, and, as for the adhesion amount of fluorescent dye, 5-15 weight% is more preferable. If the amount of fluorescent dye attached is less than 1% by weight, a sufficient whiteness improving effect tends not to be obtained. On the other hand, if it exceeds 20% by weight, a further whiteness improving effect cannot be obtained, which is not preferable from an economical viewpoint. .
また、本発明においては、染色に用いる膨潤剤の量は、アラミド繊維１００重量％に対して１〜１５重量部が好ましく、１〜１０重量％がより好ましい。膨潤剤の量が、１重量％未満では十分な白度向上効果が得られない傾向にあり、一方、１５重量％を越えてもさらなる白度向上効果は得られず経済的観点から好ましくない。 In the present invention, the amount of the swelling agent used for dyeing is preferably 1 to 15 parts by weight and more preferably 1 to 10% by weight with respect to 100% by weight of the aramid fiber. If the amount of the swelling agent is less than 1% by weight, a sufficient whiteness improving effect tends not to be obtained. On the other hand, if it exceeds 15% by weight, a further whiteness improving effect cannot be obtained, which is not preferable from an economical viewpoint.
本発明においては、アラミド繊維を、蛍光染料と膨潤剤を用いて液流染色を行うことにより、白度向上したアラミド繊維を得ることができる。
上記液流染色は、蛍光染料と膨潤剤を含む水溶液を処理液として用いて染色を行うことが好ましい。
In the present invention, aramid fibers having improved whiteness can be obtained by performing liquid flow dyeing on aramid fibers using a fluorescent dye and a swelling agent.
The liquid flow dyeing is preferably performed using an aqueous solution containing a fluorescent dye and a swelling agent as a treatment liquid.
上記処理液としては、水１００重量部に対して膨潤剤５〜１０重量、蛍光染料５〜２０重量を含有させた水溶液が好ましい。染色条件は、ｐＨ３〜７の酸性付近の範囲で行うことが好ましい。ｐＨ調整するために必要に応じて、燐酸、硫酸、塩酸等の無機酸や酢酸、蟻酸、酒石酸等の有機酸または硫安、酢酸アンモニウム、蟻酸アンモニウム等の酸性塩を単独または２種以上を混合しても良い。温度：８０〜１３０℃、時間１０〜９０分の範囲で行われるが、温度１１０〜１２０℃、時間６０〜８０分の範囲が好ましい。
本発明においては、染色条件を均一にするため、上記乾燥後に、洗浄を行い、さらに上記と同様の条件で再度乾燥してもよい。
The treatment liquid is preferably an aqueous solution containing 5 to 10 parts by weight of a swelling agent and 5 to 20 parts by weight of a fluorescent dye with respect to 100 parts by weight of water. The dyeing conditions are preferably performed in the vicinity of the acidic pH 3-7. In order to adjust pH, inorganic acids such as phosphoric acid, sulfuric acid and hydrochloric acid, organic acids such as acetic acid, formic acid and tartaric acid, or acidic salts such as ammonium sulfate, ammonium acetate and ammonium formate are used alone or in combination of two or more. May be. Temperature: 80 to 130 ° C., time 10 to 90 minutes, preferably temperature 110 to 120 ° C. and time 60 to 80 minutes.
In the present invention, in order to make the dyeing conditions uniform, washing may be performed after the drying, and drying may be performed again under the same conditions as described above.
以下、実施例により本発明を具体的に説明するが、本発明はこれら実施例に限定されるものではない。なお、実施例の染色性（Ｌ−ｂ値）は、マクベス分光光度計Ｃｏｌｏｒ−Ｅｙｅ３１００にて測色した。また、耐光性の評価は、スガ試験機（株）製紫外線フェードメーターを用い、２０時間照射で行った。耐光性は３級以上を合格とした。 EXAMPLES Hereinafter, although an Example demonstrates this invention concretely, this invention is not limited to these Examples. In addition, the dyeability (Lb value) of the Example was measured with a Macbeth spectrophotometer Color-Eye 3100. The light resistance was evaluated by irradiation for 20 hours using an ultraviolet fade meter manufactured by Suga Test Instruments Co., Ltd. The light resistance was rated as grade 3 or higher.
［実施例１］
３６番手のメタアラミド紡績糸（帝人テクノプロダクツ製コーネックス（登録商標））を製織して、秤量２００ｇ／ｍ２の平織物を得、これから織物１０ｇをサンプルとして切り出した。さらに該織物１００重量部に対し、２’２−（１，２−エテンジニル）ビス（５−メチルベンズオキサゾ−ル）系綿用蛍光染料（昭和化工製イルミナールＢＧＦ）が１０重量部、２，５−ジメチルベンジルアルコールが５重量部となるよう計量し、これらを水に溶解して総量２００ｍｌの染色浴を調整した。染色浴に織物１０ｇを投入し、液流染色機（日阪製作所製高温サーキュラー）にセットし、撹拌しながら温度を常温〜１２０℃まで昇温速度２℃／分で昇温し、さらに、１２０℃で６０分間保持した。染色浴を冷却した後、織物を取り出し水洗した。また、後処理として、総量２００ｍｌの水に織物１０ｇを投入し、上記液流染色機にセットし、撹拌しながら温度を常温にて洗浄した。その後、風乾して仕上げた。さらに加熱処理した後、水洗、乾燥する。加熱処理は、温度１８０℃、時間１分、乾燥は、温度１０５℃、時間３分行った。染色後、得られた織物は、均一かつ鮮明に染色され、白度向上していた。また、得られた織物のＬ−ｂ値は８０．１２、耐光性は３級であった。
[Example 1]
A 36th meta-aramid spun yarn (Conex (registered trademark) manufactured by Teijin Techno Products) was woven to obtain a plain fabric having a weight of 200 g / m 2 , and 10 g of the fabric was cut out as a sample. Further, 10 parts by weight of 2′2- (1,2-ethenedinyl) bis (5-methylbenzoxazole) -based cotton fluorescent dye (Showa Kako Illuminal BGF), Weighed 5-dimethylbenzyl alcohol to 5 parts by weight and dissolved them in water to prepare a dyeing bath having a total amount of 200 ml. 10 g of woven fabric is put into the dyeing bath, set in a liquid dyeing machine (high temperature circular manufactured by Nisaka Seisakusho), the temperature is raised from room temperature to 120 ° C. at a heating rate of 2 ° C./min while stirring, and further 120 Hold at 60 ° C. for 60 minutes. After cooling the dye bath, the fabric was removed and washed with water. Further, as a post-treatment, 10 g of the fabric was put into a total amount of 200 ml of water, set in the liquid dyeing machine, and washed at room temperature with stirring. Then, it was air-dried and finished. After further heat treatment, it is washed with water and dried. The heat treatment was performed at a temperature of 180 ° C. for 1 minute, and the drying was performed at a temperature of 105 ° C. for 3 minutes. After dyeing, the resulting fabric was dyed uniformly and vividly, and whiteness was improved. Further, the Lb value of the obtained woven fabric was 80.12, and the light resistance was tertiary.
［実施例２］
２，５−ジメチルベンジルアルコールの量を、織物１００重量部に対して１０重量部から５重量部に変更した以外は実施例１と同様にした。染色後、得られた織物は、均一かつ鮮明に染色されていた。また、得られた織物のＬ−ｂ値は７８．９２、耐光性は３級であった。
[Example 2]
The same procedure as in Example 1 was conducted except that the amount of 2,5-dimethylbenzyl alcohol was changed from 10 parts by weight to 5 parts by weight with respect to 100 parts by weight of the fabric. After dyeing, the resulting fabric was uniformly and vividly dyed. Further, the Lb value of the obtained woven fabric was 78.92, and the light resistance was tertiary.
［実施例３］
染料を、２，５−ビス［５−ｔ−ブチルベンゾオキザゾリル（２）］チオフェン系蛍光染料（長瀬産業（株）製ＵＶＩＴＥＸ）に変更した以外は実施例１と同様にした。染色後、得られた織物は均一に染色されていたが、白度向上効果が実施例１と比較し高くなかった。また、得られた織物のＬ−ｂ値は７７．０９、耐光性は２級であった。
[Example 3]
Example 1 was repeated except that the dye was changed to 2,5-bis [5-t-butylbenzooxazolyl (2)] thiophene fluorescent dye (UVITEX manufactured by Nagase Sangyo Co., Ltd.). After dyeing, the resulting fabric was uniformly dyed, but the whiteness improvement effect was not as high as that of Example 1. Further, the Lb value of the obtained woven fabric was 77.09, and the light resistance was secondary.
［比較例１］
２，５−ジメチルベンジルアルコールを使用しなかった場合以外は実施例１と同様にした。染色後、得られた織物は均一に染色されてはいたが、十分な白度が得られなかった。また、得られた織物のＬ−ｂ値は７５．０、耐光性は２級であった。
[Comparative Example 1]
The procedure was the same as Example 1 except that 2,5-dimethylbenzyl alcohol was not used. After dyeing, the resulting fabric was uniformly dyed, but sufficient whiteness was not obtained. Further, the Lb value of the obtained woven fabric was 75.0, and the light resistance was secondary.
本発明によれば、液流染色により白度向上が可能となるため、鮮明かつ白度向上されたアラミド繊維布帛を得ることができ、産業上の利用価値は極めて高いものである。 According to the present invention, whiteness can be improved by liquid flow dyeing, so that a clear and whiteness-improved aramid fiber fabric can be obtained, and the industrial utility value is extremely high.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2014214387A (en) * | 2013-04-23 | 2014-11-17 | 帝人株式会社 | Fabric and clothes |
| JP2014221955A (en) * | 2013-05-14 | 2014-11-27 | 帝人株式会社 | Fabric and clothing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2014214387A (en) * | 2013-04-23 | 2014-11-17 | 帝人株式会社 | Fabric and clothes |
| JP2014221955A (en) * | 2013-05-14 | 2014-11-27 | 帝人株式会社 | Fabric and clothing |
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