JP3215640B2 - One-step continuous bleaching method of fiber using hydrogen peroxide - Google Patents
One-step continuous bleaching method of fiber using hydrogen peroxideInfo
- Publication number
- JP3215640B2 JP3215640B2 JP35735496A JP35735496A JP3215640B2 JP 3215640 B2 JP3215640 B2 JP 3215640B2 JP 35735496 A JP35735496 A JP 35735496A JP 35735496 A JP35735496 A JP 35735496A JP 3215640 B2 JP3215640 B2 JP 3215640B2
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- hydrogen peroxide
- bleaching
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- Chemical Or Physical Treatment Of Fibers (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、過酸化水素を用い
た繊維の漂白方法に関し、特に低アルカリ高濃度の過酸
化水素とパッドスチーム処理を用いることにより、一工
程処理で従来と変わらない白度と風合いを持つ繊維が得
られる漂白方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for bleaching a fiber using hydrogen peroxide, and more particularly to a method of using a low alkali and high concentration of hydrogen peroxide and a pad steam treatment to obtain the same whiteness as the conventional one by one-step treatment. The present invention relates to a bleaching method capable of obtaining fibers having a degree and texture.
【０００２】[0002]
【従来の技術】従来、繊維の精練漂白は、（精練→）亜
塩素酸ソ−ダ漂白→弱アルカリ性過酸化水素漂白の方法
で行われるのが一般的であり、この方法によれば、風合
いを損ねることが少なく、また高白度の繊維が得られる
が、処理工程が複数存在するため手間と時間を要し、更
に各工程間に洗浄工程が必要となるため、設備が大掛か
りなものとなり制御も難しくなるといった問題があっ
た。また、塩素ガスによる装置の腐食を防ぐため、チタ
ン、ＦＲＰ等の高価な材質を使用しなければならず、更
に塩素ガスの環境面に与える悪影響を考慮し、塩素ガス
の漏洩を防ぐ必要があるため設備面で膨大なコストが必
要となる。2. Description of the Related Art Hitherto, scouring and bleaching of fibers is generally carried out by a method of (scouring →) sodium chlorite bleach → weak alkaline hydrogen peroxide bleaching. Less damage and high whiteness fiber can be obtained.However, since there are multiple processing steps, labor and time are required, and furthermore, a cleaning step is required between each step. There was a problem that control became difficult. In addition, in order to prevent corrosion of the apparatus due to chlorine gas, expensive materials such as titanium and FRP must be used, and furthermore, it is necessary to prevent the leakage of chlorine gas in consideration of the adverse effect of chlorine gas on the environment. Therefore, enormous costs are required in terms of equipment.
【０００３】そこで、このような問題を解決するため
に、塩素ガスを使用しない漂白方法として、次のような
過酸化水素のみを用いた方法が提案されている。 （１）アルカリ性（pH１１〜１２）過酸化水素一工程漂
白 （２）低温アルカリ性（pH１１〜１２）過酸化水素一工
程漂白（常温放置） （３）過酸化水素二工程漂白In order to solve such a problem, the following bleaching method using only hydrogen peroxide has been proposed as a bleaching method using no chlorine gas. (1) Alkaline (pH 11 to 12) hydrogen peroxide one-step bleaching (2) Low temperature alkaline (pH 11 to 12) hydrogen peroxide one-step bleaching (room temperature standing) (3) Hydrogen peroxide two-step bleaching
【０００４】上記のように各種提案されているが、
（１）については、低過酸化水素濃度、高アルカリ処理
となり、特に綿などの天然繊維製品に対してかたい風合
いを与えるため、生地物性面で問題がある。（２）につ
いては、低温で穏やかな反応であるため生地物性が
（１）より改善されてはいるが、処理時間が長時間かか
り、また生地の放置場所を確保する必要があるため、大
量生産には不向きである。（３）については、例えば、
特開平３−２８７８５９号公報に提案されているよう
に、後段低温アルカリ性過酸化水素漂白の前段処理とし
て、pH５〜８．５の過酸化水素溶液による処理が必要で
あり、風合い、白度の面では優れているが、工程が複数
になるため制御が複雑化し、更に、後段処理では５時間
以上（前記公報中、実施例１、２では３５℃で１５時
間、実施例３、４では４５℃で１０時間、実施例５、６
では２５℃で２０時間）放置しなければならず、処理時
間が長時間かかり、また生地の放置場所を確保する必要
があるため、これも大量生産には不向きである。即ち、
（１）は生地品質の点で、また（２）、（３）は大量生
産を行う点でそれぞれ問題があり、これまでの過酸化水
素のみによる漂白では、生地品質、大量生産の両者を満
足するものはなかった。Although various proposals have been made as described above,
In the case of (1), a low hydrogen peroxide concentration and a high alkali treatment are applied, and a hard texture is given particularly to natural fiber products such as cotton, so that there is a problem in terms of fabric physical properties. Regarding (2), although the physical properties of the dough are better than those of (1) because of a gentle reaction at low temperature, the processing time is long and it is necessary to secure a place where the dough is left. Not suitable for For (3), for example,
As proposed in JP-A-3-287859, treatment with a hydrogen peroxide solution having a pH of 5 to 8.5 is required as a pre-treatment for the subsequent low-temperature alkaline hydrogen peroxide bleaching. Is excellent, but the control becomes complicated due to the multiple steps, and furthermore, 5 hours or more in the post-processing (15 hours at 35 ° C. in Examples 1 and 2 in the above publication, 45 ° C. in Examples 3 and 4). 10 hours, Examples 5, 6
(20 hours at 25 ° C.), which requires a long processing time, and also requires a place to leave the dough, which is also unsuitable for mass production. That is,
(1) has a problem in terms of fabric quality, and (2) and (3) have problems in mass production. Bleaching with only hydrogen peroxide satisfies both fabric quality and mass production. There was nothing to do.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、従来の塩素
ガス漂白における設備面、環境面での問題を解決するた
め、漂白の際、塩素ガスを用いず過酸化水素のみを使用
して、塩素ガス漂白と変わらない白度と風合いを得るこ
とを目的としている。更に、大量生産を考慮し、作業工
程の短縮化（一工程連続処理）、及び処理時間の短縮化
を図ることを目的としたものである。SUMMARY OF THE INVENTION The present invention solves the facility and environmental problems of conventional chlorine gas bleaching by using only hydrogen peroxide without using chlorine gas during bleaching. The aim is to obtain the same degree of whiteness and texture as chlorine gas bleaching. Furthermore, in view of mass production, it is intended to shorten the working process (one-step continuous process) and to shorten the processing time.
【０００６】[0006]
【課題を解決するための手段】本発明者らは、上記諸目
的を解決すべく鋭意検討した結果、低アルカリ高濃度の
過酸化水素とパッドスチーム処理を用いることによっ
て、上記諸目的が解決できることを知り、この知見に基
づいて本発明を完成するに至った。即ち、本発明は、pH
が９〜１１に調整された濃度８０〜２００g/l の過酸化
水素溶液（３５重量％換算）に、繊維を少なくとも５分
間浸漬し、次いで脱水処理をした後、温度８０〜１２０
℃で１０〜３０分間スチ−ム処理するものである。Means for Solving the Problems The present inventors have made intensive studies to solve the above-mentioned objects, and as a result, it has been found that the above-mentioned objects can be solved by using low alkali and high concentration hydrogen peroxide and pad steam treatment. And completed the present invention based on this finding. That is, the present invention provides
The fibers were immersed in a hydrogen peroxide solution (35% by weight) having a concentration of 80 to 200 g / l adjusted to 9 to 11 for at least 5 minutes, and then subjected to a dehydration treatment.
This is to perform a steam treatment at 10 ° C. for 10 to 30 minutes.
【０００７】[0007]
【発明の実施の形態】通常、過酸化水素のみで行われる
漂白においては、過酸化水素の性質上、酸性側領域では
過酸化水素の漂白力が乏しいため、pH１１〜１２の高ア
ルカリpH域で行われるのが一般的である。これは、綿繊
維等に対し、過酸化水素がこのpH域で最高の漂白力を示
すからであり、この時、過酸化水素の濃度を高濃度で使
用すると、繊維の脆化が進んでしまうため、一般には低
濃度で使用されている。DESCRIPTION OF THE PREFERRED EMBODIMENTS In bleaching usually performed only with hydrogen peroxide, the bleaching power of hydrogen peroxide is poor in an acidic region due to the nature of hydrogen peroxide. This is generally done. This is because hydrogen peroxide exhibits the highest bleaching power in this pH range with respect to cotton fibers and the like. At this time, if the concentration of hydrogen peroxide is used at a high concentration, the embrittlement of the fibers proceeds. Therefore, it is generally used at a low concentration.
【０００８】本発明では、pH条件を通常の条件よりも低
くすることにより、過酸化水素の分解挙動を緩やかに
し、繊維に対しソフトな漂白を行い、反面、不足する反
応に必要な過酸化水素量を、濃度を高くすることによっ
て補い、塩素ガス漂白と変わらない白度と風合いのもの
を得ようとするものである。また、パッド、高温スチー
ムを採用することにより、過酸化水素を有効に繊維に作
用させることができるので、処理時間を短縮化し、かつ
一工程連続漂白を可能とするものである。[0008] In the present invention, by lowering the pH condition than normal conditions, the decomposition behavior of hydrogen peroxide is moderated, and the fibers are bleached softly, while the hydrogen peroxide required for the insufficient reaction is obtained. The amount is compensated for by increasing the concentration to obtain a whiteness and texture that is not different from chlorine gas bleaching. Further, by employing a pad and high-temperature steam, hydrogen peroxide can effectively act on the fiber, so that the processing time can be shortened and one-step continuous bleaching can be performed.
【０００９】前記構成において、本発明に用いられる過
酸化水素溶液のpHは９〜１１が好ましく、また濃度は３
５重量％換算で、８０〜２００g/l 、より好ましくは１
３０〜１８０g/l である。過酸化水素溶液の濃度が８０
g/l よりも低い場合、pHが９未満では十分な白度が得ら
れず、またpHが１１よりも高い時は脆化が進んでしま
う。また、過酸化水素溶液の濃度が２００g/l よりも高
い場合、pHにかかわらず、反応する過酸化水素量が多く
なり過ぎるため脆化が進んでしまう。なお、本発明にお
いて使用される過酸化水素は、市販されている３５重量
％品のものが好適に用いられる。In the above construction, the pH of the hydrogen peroxide solution used in the present invention is preferably 9 to 11, and the concentration is 3 to 11.
80 to 200 g / l, more preferably 1 to 5% by weight
It is 30 to 180 g / l. The concentration of the hydrogen peroxide solution is 80
When the pH is lower than g / l, sufficient whiteness cannot be obtained when the pH is lower than 9, and embrittlement proceeds when the pH is higher than 11. On the other hand, if the concentration of the hydrogen peroxide solution is higher than 200 g / l, the amount of reacting hydrogen peroxide becomes too large and the embrittlement proceeds irrespective of the pH. The hydrogen peroxide used in the present invention is preferably a commercially available 35% by weight product.
【００１０】更に前記構成において、繊維を漂白液に浸
漬する時間は、少なくとも５分以上であればよく、５分
未満であると、漂白の効果が十分得られない。ただし、
あまり長時間浸漬しても、ある程度の時間浸漬すればそ
れ以上漂白の効果が変わらなくなり、それ以上は時間の
ロスになるので、浸漬時間は好ましくは５〜１０分間で
ある。また、浸漬温度は常温でよいが、あまり温度が高
いと過酸化水素の分解が起こってしまうので、好ましく
は４０℃以下、更に好ましくは１５〜３５℃である。Further, in the above structure, the time for immersing the fiber in the bleaching solution may be at least 5 minutes or more, and if it is less than 5 minutes, the effect of bleaching may not be sufficiently obtained. However,
Even if it is immersed for a very long time, if it is immersed for a certain period of time, the effect of bleaching will not change any more, and if it is immersed for a longer time, the immersion time is preferably 5 to 10 minutes. The immersion temperature may be room temperature, but if the temperature is too high, the decomposition of hydrogen peroxide occurs. Therefore, the immersion temperature is preferably 40 ° C or lower, more preferably 15 to 35 ° C.
【００１１】浸漬後、脱水処理を行うが、これは通常用
いられているローラー等により行われ、絞り率は繊維重
量の１００〜２００％が好ましい。絞り率が１００％未
満であれば、繊維によって持ち出される過酸化水素の量
が不十分となるため白度不足となってしまい、また絞り
率が２００％を越えれば、更なる白度の向上が認められ
ないだけでなく、漂白液のムダになってしまう。After the immersion, a dehydration treatment is carried out using a commonly used roller or the like, and the squeezing ratio is preferably 100 to 200% of the fiber weight. If the drawing ratio is less than 100%, the amount of hydrogen peroxide taken out by the fiber becomes insufficient, resulting in insufficient whiteness. If the drawing ratio exceeds 200%, the whiteness is further improved. Not only is it not acceptable, but it also wastes bleach.
【００１２】脱水処理後、スチ−ムにて温度８０〜１２
０℃で加熱処理するが、このスチームによる処理は、漂
白液のほぼ飽和に近い蒸気中に繊維を通してもよいし、
あるいは繊維にこの蒸気を吹き付けてもよい。かかる温
度が８０℃未満の場合、処理時間を延長しても反応が不
足してしまうため十分な白度に達しず、更に綿花の殻の
残留物や精練不足によるロウ、油脂分の残留物が発生し
てしまう。また、かかる温度が１２０℃を越えた場合は
繊維の脆化が進んでしまう。After the dehydration treatment, the temperature is adjusted to 80 to 12 with a steam.
The heat treatment is performed at 0 ° C., and the treatment with steam may be performed by passing the fiber into steam that is almost saturated with the bleaching solution,
Alternatively, the fibers may be sprayed with this steam. When the temperature is lower than 80 ° C., even if the treatment time is extended, the reaction becomes insufficient, so that sufficient whiteness is not reached. Furthermore, residues of cotton shells and waxes and oils and fats due to insufficient scouring remain. Will occur. If the temperature exceeds 120 ° C., the fibers become brittle.
【００１３】前記スチームによる処理時間は、１０〜３
０分間が好ましい。かかるスチームによる加熱処理時間
が１０分未満の場合、反応が不足するため十分な白度に
達しず、更に綿花の殻の残留物や精練不足によるロウ、
油脂分の残留物が発生してしまう。また、スチームによ
る加熱処理時間が３０分より長い場合、白度において更
なる効果が得られないだけでなく、繊維の脆化を引き起
こす原因となってしまう。The processing time by the steam is 10 to 3
0 minutes is preferred. When the heat treatment time by such steam is less than 10 minutes, the reaction does not achieve sufficient whiteness due to insufficient reaction, and furthermore, wax residue due to lack of cotton shell residue and scouring,
Fat and oil residues are generated. Further, when the heat treatment time by steam is longer than 30 minutes, not only no further effect is obtained in the whiteness, but also a cause of causing brittleness of the fiber.
【００１４】なお、漂白処理を施す際、薬品の浸透を進
めるために漂白液中に界面活性剤等の浸透剤を添加して
もよい。かかる浸透剤の濃度は、種類によっても異なる
が、通常０．５〜１０g/l である。また、アルカリ条件
下での過酸化水素の安定化を図るため、通常、キレート
剤等の過酸化水素安定剤が用いられる。これは、過酸化
水素がアルカリ領域では不安定となるためであり、液中
での過酸化水素の無駄な分解を防ぐものである。同時に
この過酸化水素安定剤は、金属イオンによる過酸化水素
の急激な分解をも防ぐ効果があり、通常、使用濃度は
０．５〜１０g/l である。When performing the bleaching treatment, a penetrant such as a surfactant may be added to the bleaching solution in order to promote the penetration of chemicals. The concentration of the penetrant varies depending on the kind, but is usually 0.5 to 10 g / l. In order to stabilize hydrogen peroxide under alkaline conditions, a hydrogen peroxide stabilizer such as a chelating agent is usually used. This is because hydrogen peroxide becomes unstable in an alkaline region, and prevents wasteful decomposition of hydrogen peroxide in a liquid. At the same time, the hydrogen peroxide stabilizer also has an effect of preventing rapid decomposition of hydrogen peroxide by metal ions, and its concentration is usually 0.5 to 10 g / l.
【００１５】本発明方法によって処理される繊維は、
綿、麻等の天然繊維、ポリアミド系、ポリエステル系、
ポリウレタン系等の合成繊維、アセテート等の半合成繊
維、レーヨン等の再生繊維、またはこれらの繊維の混紡
糸、混織、混編、その他の繊維製品等が挙げられる。な
お、繊維は上記した本発明方法である連続的な一工程処
理による漂白が行われた後、次工程の洗浄工程に移さ
れ、残留する薬剤を洗い落とされた後、乾燥される。The fibers treated according to the method of the present invention are:
Cotton, natural fiber such as hemp, polyamide, polyester,
Examples include synthetic fibers such as polyurethane, semi-synthetic fibers such as acetate, regenerated fibers such as rayon, and blended yarns, blends, knits, and other fiber products of these fibers. The fibers are bleached by the above-described continuous one-step process of the present invention, then transferred to the next washing step, where the remaining chemicals are washed off and dried.
【００１６】[0016]
【実施例】以下、本発明の内容を実施例、及び比較例に
基づいて具体的に説明するが、本発明はこれらに何ら限
定されるものではない。The present invention will be specifically described below based on examples and comparative examples, but the present invention is not limited to these examples.
【００１７】（実施例１）綿１００％生地 綿１００％生地に対して、以下の条件で実施した。 ３５重量％Ｈ2Ｏ2 １５０ g/l 過酸化水素安定剤（キレ−ト剤） １ g/l 浸透剤 １ g/l pH １０．０ 浸漬時間 １０分間（常温） 絞り率 １３０％ スチ−ム時間 ２０分間 スチ−ム温度 １００℃(Example 1) 100% cotton fabric A 100% cotton fabric was used under the following conditions. 35% by weight H 2 O 2 150 g / l Hydrogen peroxide stabilizer (chelating agent) 1 g / l penetrant 1 g / l pH 10.0 Immersion time 10 minutes (normal temperature) Squeezing rate 130% Steam Time 20 minutes Steam temperature 100 ° C
【００１８】（実施例２）綿１００％生地 実施例１と同様の綿１００％生地に対して、以下の条件
で実施した。 ３５重量％Ｈ2Ｏ2 １３０ g/l 過酸化水素安定剤（キレ−ト剤） １ g/l 浸透剤 １ g/l pH １０．５ 浸漬時間 １０分間（常温） 絞り率 １００％ スチ−ム時間 ２０分間 スチ−ム温度 １００℃Example 2 100% Cotton Fabric The same 100% cotton fabric as in Example 1 was used under the following conditions. 35% by weight H 2 O 2 130 g / l Hydrogen peroxide stabilizer (chelating agent) 1 g / l Penetrant 1 g / l pH 10.5 Immersion time 10 minutes (normal temperature) Squeezing rate 100% Steam Time 20 minutes Steam temperature 100 ° C
【００１９】（比較例１）綿１００％生地 実施例１、実施例２と同様の綿１００％生地に対して、
従来法である浸漬法を以下の条件で実施した。 ・亜塩素酸ナトリウム漂白 ２５重量％ＮａＣｌＯ2 ５０ g/l 亜塩素酸ナトリウム安定剤（キレ−ト剤） ０．５ g/l 浸透剤 １ g/l pH ４．０ 浸漬時間 １０分間（常温） 処理温度 ６０℃ 処理時間 ２１０分間 浴 比 １：２０ ・過酸化水素漂白 ３５重量％Ｈ2Ｏ2 １５ g/l 過酸化水素安定剤（キレ−ト剤） １ g/l 浸透剤 １ g/l pH １０．５ 浸漬時間 １０分間（常温） 処理温度 ６０℃ 処理時間 ３０分間 浴 比 １：２０(Comparative Example 1) 100% Cotton Fabric For 100% cotton fabric similar to those in Examples 1 and 2,
A conventional immersion method was performed under the following conditions.・ Sodium chlorite bleaching 25% by weight NaClO 2 50 g / l Sodium chlorite stabilizer (chelating agent) 0.5 g / l penetrant 1 g / l pH 4.0 Immersion time 10 minutes (normal temperature) Processing temperature 60 ° C Processing time 210 minutes Bath ratio 1:20 ・ Hydrogen peroxide bleaching 35% by weight H 2 O 2 15 g / l Hydrogen peroxide stabilizer (chelating agent) 1 g / l Penetrant 1 g / l pH 10.5 Immersion time 10 minutes (normal temperature) Processing temperature 60 ° C Processing time 30 minutes Bath ratio 1:20
【００２０】実施例１、実施例２、及び比較例１の結果
を表１に示す。なお、表１における各評価は次のように
測定したものである。 （１）白度 ＣＩＥＬＡＢ色空間よりＬ*−３ｂ*として算出（MACBET
H・WE３０００微小面積にて測色）した。 （２）ソフト性 測定試料布をミシン（ジューキ社製：AUTO THREAD CUTT
ER SPUR90 、針：OREGAN DB×11号）でから縫いし、あ
いた穴の数を次式に代入してソフト性を評価する数値と
した。但し、比較例１のソフト性を１００として算出し
た。尚、ソフト性を評価する数値は、大きい方が良いこ
とを表わしている。 ソフト性＝（１００／あいた穴の数）×１００ （３）強度 引張り強さ、ＪＩＳ Ｌ−１０１８（１９９０）６．１
３に基づき測定した。但し、比較例１を１００として示
した。Table 1 shows the results of Example 1, Example 2, and Comparative Example 1. In addition, each evaluation in Table 1 is measured as follows. (1) Whiteness Calculated as L * -3b * from CIELAB color space (MACBET
H.WE 3000 colorimetric measurement). (2) Softness Use a sample cloth for sewing with a sewing machine (AUTO THREAD CUTT manufactured by Juki
ER SPUR90, needle: OREGAN DB × 11), and the number of holes that were opened was substituted into the following formula to obtain a numerical value for evaluating softness. However, the softness of Comparative Example 1 was calculated as 100. The numerical value for evaluating the softness indicates that a larger value is better. Softness = (100 / number of opened holes) × 100 (3) Strength Tensile strength, JIS L-1018 (1990) 6.1
3 was measured. However, Comparative Example 1 is shown as 100.
【００２１】[0021]
【表１】 [Table 1]
【００２２】表１からも明らかなように、本発明方法
は、従来法である浸漬法と比較し、白度、ソフト性、及
び引張り強さの全てにおいて同等であり、しかも処理時
間が短時間で行える。As is clear from Table 1, the method of the present invention is equivalent in all of whiteness, softness and tensile strength as compared with the conventional immersion method, and has a short processing time. Can be done with
【００２３】（実施例３）綿／ポリウレタン混生地 綿／ポリウレタン混生地に対して、以下の条件で実施し
た。 ３５重量％Ｈ2Ｏ2 １５０ g/l 過酸化水素安定剤（キレ−ト剤） １ g/l 浸透剤 １ g/l pH １０．０ 浸漬時間 １０分間（常温） 絞り率 １３０％ スチ−ム時間 ２０分間 スチ−ム温度 １００℃Example 3 Cotton / Polyurethane Mixed Fabric A cotton / polyurethane mixed fabric was prepared under the following conditions. 35% by weight H 2 O 2 150 g / l Hydrogen peroxide stabilizer (chelating agent) 1 g / l penetrant 1 g / l pH 10.0 Immersion time 10 minutes (normal temperature) Squeezing rate 130% Steam Time 20 minutes Steam temperature 100 ° C
【００２４】 （実施例４）綿／ポリウレタン混生地 実施例３と同様の綿／ポリウレタン混生地に対して、以下の条件で実施した。 ３５重量％Ｈ2Ｏ2 １２０ g/l 過酸化水素安定剤（キレ−ト剤） １ g/l 浸透剤 １ g/l pH １０．５ 浸漬時間 １０分間（常温） 絞り率 １００％ スチ−ム時間 ２０分間 スチ−ム温度 １００℃Example 4 Cotton / Polyurethane Mixed Fabric The same cotton / polyurethane mixed fabric as in Example 3 was used under the following conditions. 35% by weight H 2 O 2 120 g / l Hydrogen peroxide stabilizer (chelating agent) 1 g / l penetrant 1 g / l pH 10.5 Immersion time 10 minutes (normal temperature) Squeezing rate 100% Steam Time 20 minutes Steam temperature 100 ° C
【００２５】（比較例２）綿／ポリウレタン混生地 実施例３、実施例４と同様の綿／ポリウレタン混生地に
対して、従来法である浸漬法を以下の条件で実施した。 ３５重量％Ｈ2Ｏ2 １５ g/l 過酸化水素安定剤（キレ−ト剤） １ g/l 浸透剤 １ g/l pH １１．０ 浸漬時間 １０分間（常温） 処理温度 ９５℃ 処理時間 ９０分間 浴 比 １：１５(Comparative Example 2) Cotton / Polyurethane Mixed Fabric A cotton / polyurethane mixed fabric similar to that of Examples 3 and 4 was subjected to a conventional immersion method under the following conditions. 35% by weight H 2 O 2 15 g / l Hydrogen peroxide stabilizer (chelating agent) 1 g / l penetrant 1 g / l pH 11.0 Immersion time 10 minutes (normal temperature) Processing temperature 95 ° C. Processing time 90 Minute bath ratio 1:15
【００２６】（比較例３）綿／ポリウレタン混生地 実施例３のＨ2Ｏ2の濃度とpHを以下のように変更する以
外は、実施例３と同様に実施した。 ３５重量％Ｈ2Ｏ2 ６５ g/l pH １１．０(Comparative Example 3) Cotton / polyurethane mixed material The same operation as in Example 3 was carried out except that the concentration and pH of H 2 O 2 in Example 3 were changed as follows. 35% by weight H 2 O 2 65 g / l pH 11.0
【００２７】実施例３、実施例４、比較例２、及び比較
例３の結果を表２に示す。なお、表２における各評価は
次のように測定したものである。 （１）白度 ＣＩＥＬＡＢ色空間よりＬ*−３ｂ*として算出（MACBET
H・WE３０００微小面積にて測色）した。 （２）ソフト性 剛軟度、ＪＩＳ Ｌ−１０１８（１９９０）６．２２に
基づき測定した。但し比較例２を１００として示した。 （３）強度 引張り強さ、ＪＩＳ Ｌ−１０１８（１９９０）６．１
３に基づき測定した。但し比較例２を１００として示し
た。Table 2 shows the results of Example 3, Example 4, Comparative Example 2, and Comparative Example 3. In addition, each evaluation in Table 2 is measured as follows. (1) Whiteness Calculated as L * -3b * from CIELAB color space (MACBET
H.WE 3000 colorimetric measurement). (2) Softness The softness was measured based on JIS L-1018 (1990) 6.22. However, Comparative Example 2 is shown as 100. (3) Strength Tensile strength, JIS L-1018 (1990) 6.1
3 was measured. However, Comparative Example 2 is shown as 100.
【００２８】[0028]
【表２】 [Table 2]
【００２９】表２からも明らかなように、本発明方法
は、従来法である浸漬法と比較し、白度、剛軟度、及び
引張り強さの全てにおいて同等であり、しかも処理時間
が短時間で行える。また、比較例３からも明らかなよう
に、Ｈ2Ｏ2の濃度が低い場合は十分な白度が得られな
い。As is clear from Table 2, the method of the present invention is equivalent in all of whiteness, softness and tensile strength, and has a short processing time as compared with the conventional immersion method. Can be done in time. Further, as is clear from Comparative Example 3, when the concentration of H 2 O 2 is low, sufficient whiteness cannot be obtained.
【００３０】[0030]
【発明の効果】以上説明したとおり、本発明によれば、
亜塩素酸ソ−ダ（ＮａＣｌＯ2）を使用しなくても、塩
素ガス漂白と同等の白度と風合いが短時間で得られるた
め、廃水処理の負荷の軽減を含め、塩素ガス漂白におけ
る設備面、環境面での問題を解決できる。また、一工程
連続漂白であるので、作業工程が短縮化され、設備面、
ランニングコストを抑えることができ、更に実生産時の
制御面での負担を軽減することができる。As described above, according to the present invention,
Even if soda chlorite (NaClO 2 ) is not used, the same whiteness and texture as in chlorine gas bleaching can be obtained in a short time. Can solve environmental problems. In addition, since it is a one-step continuous bleaching, the work process is shortened,
The running cost can be suppressed, and the load on control in actual production can be reduced.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小澤 七洋 京都府宮津市惣262番地 グンゼ株式会 社 アパレル事業本部内 審査官 菊地 則義 (56)参考文献 特開 平５−117960（ＪＰ，Ａ) 特開 平３−64574（ＪＰ，Ａ) 特開 平７−157982（ＪＰ，Ａ) 特開 平７−18564（ＪＰ，Ａ) 特開 平５−125661（ＪＰ，Ａ) 特公 昭59−24230（ＪＰ，Ｂ２) (58)調査した分野(Int.Cl.7，ＤＢ名) D06L 1/00 - 3/16 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Naohiro Ozawa Examiner, Apparel Business Division, 262 So, Miyazu-shi, Kyoto, Japan Noriyoshi Kikuchi (56) JP-A-3-64574 (JP, A) JP-A-7-157982 (JP, A) JP-A-7-18564 (JP, A) JP-A-5-125661 (JP, A) 24230 (JP, B2) (58) Fields investigated (Int. Cl. 7 , DB name) D06L 1/00-3/16
Claims (1)
００g/l の過酸化水素溶液（３５重量％換算）に、繊維
を少なくとも５分間浸漬し、次いで脱水処理をした後、
温度８０〜１２０℃で１０〜３０分間スチ−ム処理する
ことを特徴とする過酸化水素を用いた繊維の一工程連続
漂白方法。1. A concentration of 80 to 2 whose pH is adjusted to 9 to 11.
The fibers were immersed in a 00 g / l hydrogen peroxide solution (35% by weight) for at least 5 minutes and then dehydrated.
A one-step continuous bleaching method using hydrogen peroxide, wherein the fiber is steamed at a temperature of 80 to 120 ° C for 10 to 30 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35735496A JP3215640B2 (en) | 1996-12-25 | 1996-12-25 | One-step continuous bleaching method of fiber using hydrogen peroxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35735496A JP3215640B2 (en) | 1996-12-25 | 1996-12-25 | One-step continuous bleaching method of fiber using hydrogen peroxide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10195761A JPH10195761A (en) | 1998-07-28 |
| JP3215640B2 true JP3215640B2 (en) | 2001-10-09 |
Family
ID=18453706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35735496A Expired - Fee Related JP3215640B2 (en) | 1996-12-25 | 1996-12-25 | One-step continuous bleaching method of fiber using hydrogen peroxide |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3215640B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2209420T3 (en) * | 1998-04-17 | 2004-06-16 | Alberta Research Council, Inc. | LIGNOCELLULOSIC PULP PRODUCTION METHOD FROM NON-WOOD SPECIES. |
| CN111996721A (en) * | 2020-06-30 | 2020-11-27 | 海宁明润纺织有限公司 | Open-width continuous pretreatment method for cotton knitted fabric |
-
1996
- 1996-12-25 JP JP35735496A patent/JP3215640B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10195761A (en) | 1998-07-28 |
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