JPS6141368A - Efficient bleaching of cotton fabric - Google Patents
Efficient bleaching of cotton fabricInfo
- Publication number
- JPS6141368A JPS6141368A JP59158468A JP15846884A JPS6141368A JP S6141368 A JPS6141368 A JP S6141368A JP 59158468 A JP59158468 A JP 59158468A JP 15846884 A JP15846884 A JP 15846884A JP S6141368 A JPS6141368 A JP S6141368A
- Authority
- JP
- Japan
- Prior art keywords
- range
- sodium chlorite
- cotton fabric
- bleaching
- conditions
- 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
- 238000004061 bleaching Methods 0.000 title claims description 9
- 229920000742 Cotton Polymers 0.000 title claims description 8
- 239000004744 fabric Substances 0.000 title claims description 6
- 238000000034 method Methods 0.000 claims description 10
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 claims description 10
- 229960002218 sodium chlorite Drugs 0.000 claims description 10
- 239000002759 woven fabric Substances 0.000 claims 1
- 238000002845 discoloration Methods 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229920003043 Cellulose fiber Polymers 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
Landscapes
- Detergent Compositions (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は短時間で効率的に漂白を行なう従来にない新規
な漂白方法を提供するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a novel and unprecedented bleaching method that efficiently bleaches in a short period of time.
従来より汎用されているセルロース系繊維（綿等）の漂
白方法としては過酸化水素、或は亜塩素酸ナトリウムを
それぞれアルカリ、酸等で活性化して行なう方法が代表
例として挙げられる。Typical examples of conventional bleaching methods for cellulose fibers (cotton, etc.) include methods in which hydrogen peroxide or sodium chlorite is activated with alkali, acid, etc., respectively.
本発明はかかる漂白法の内、特に亜塩素酸ナトリウムを
使用した従来にない新規な漂白方法を提供するものであ
る。Among such bleaching methods, the present invention particularly provides a novel and unprecedented bleaching method using sodium chlorite.
従来より行なわれている亜塩素酸ナトリウムを用いた漂
白法においては被漂白物の脆化を抑え、ある一定の白変
を得るためにかなりの時間浴中に浸漬して処理している
。かかる点、時間短縮のために処理条件をきつくして処
理することもいろいろ試みられているが繊維が脆化した
り、またみかすと呼ばれる綿のカス等が黒点となって残
ったりする欠点があり実用化には至っていない。In the conventional bleaching method using sodium chlorite, the object to be bleached is immersed in a bath for a considerable period of time in order to suppress embrittlement and achieve a certain level of white discoloration. Various attempts have been made to tighten the processing conditions in order to shorten the processing time, but these have the drawbacks of embrittling the fibers and leaving behind cotton dregs as black spots. It has not yet been put into practical use.
本発明はかかる点、亜塩素酸ナトリウムを用い高品質で
しかも高能率の漂白が可能な従来にない新規な漂白方法
を提供するものである。In view of the above, the present invention provides a novel bleaching method that uses sodium chlorite and is capable of achieving high quality and highly efficient bleaching.
しかるにその方法において綿編、織地を亜塩素酸ナトリ
ウム溶液に浸漬しこれを絞液した後密閉化された室内に
連続的に詰め込み処理するに際し該詰め込みの容積比を
綿線、織地ｌに対し１０以下の範囲とし、以下の式にお
けるＹの値が８０以上となるごとく下記一般式の範囲即
ち、Ｙ ＝ Ｑ、０８Ａ ＋０．００８２Ｂ −３
，１２Ｇ 今１１１Ｂ、７５但し、Ｙはハンター白度
Ａは密閉化された室内の温度で８０〜１５０℃の範囲
Ｂは密閉化された室内における滞留時間で１〜１５分の
範囲
Ｃは亜塩素酸ナトリウム液のｐＨの値で２．５〜４．０
の範囲
における条件で処理することを特徴とするものである。However, in this method, the cotton knitted fabric is immersed in a sodium chlorite solution, squeezed out, and then packed continuously in a sealed chamber, and the volume ratio of the stuffing is 10 to 1 liter of cotton wire or fabric. The range is as follows, and the range of the general formula below is such that the value of Y in the formula below is 80 or more, that is, Y = Q, 08A +0.0082B -3
, 12G Now 111B, 75 However, Y is the Hunter whiteness A is the temperature in a sealed room and ranges from 80 to 150°C B is the residence time in a sealed room and ranges from 1 to 15 minutes C is subchlorine pH value of sodium acid solution is 2.5 to 4.0
It is characterized by processing under conditions within the range of .
以下にこれについて例を挙げて説明する。This will be explained below using an example.
〈実施例〉
４０番手の綿糸を使用してフライス編した生地を用いて
以下の３つの条件の下に本発明を実施した結果は表に示
す通りであった。<Example> The present invention was carried out under the following three conditions using fabric knitted by milling using 40-count cotton yarn. The results were as shown in the table.
尚、使用したＮａＣｌ０ｚは対照区、実施例とも２Ｓｗ
ｔＸ Ｗｎ度の水溶液を用いた。In addition, the NaCl0z used was 2Sw for both the control group and the example.
An aqueous solution of tXWn degrees was used.
処理の方法は対照区は浴比ｌ：４で上記条件浴中に浸漬
したまま上記加熱温度、時間の下に処理したもの。実施
例は何れも上記浸漬浴に浸漬した後絞液し、密閉化され
た室内で上記加熱温度、時間容積比の下に処理したもの
である。As for the treatment method, the control group was treated under the above heating temperature and time while immersed in the bath under the above conditions at a bath ratio of 1:4. In all Examples, the samples were immersed in the above-mentioned immersion bath, squeezed out, and treated in a sealed room at the above-mentioned heating temperature and time-volume ratio.
又、評価における白変はハンター白度、強力は解糸した
後の切断強度である。Further, in the evaluation, white discoloration refers to Hunter whiteness, and strength refers to cutting strength after thread removal.
以上の結果からも明らかなように本発明は従来の方法に
比べ極めて短時間の内に従来と遜色のない結果を得るこ
とができるものである。As is clear from the above results, the present invention can obtain results comparable to those of the conventional method in an extremely short time compared to the conventional method.
以上、本発明は被漂白物であるセルロース系繊維の編、
織地に対し、一定置上の白変、即ち８０以上のハンター
白度を得るために必要な条件について究明し、多くのデ
ータからこれを係数化し一般式として求めたものであり
、前記した容積比即ち、処理室空間に対する被処理物の
充填率、及び一般式の範囲内であればこれが高効率、短
時間の内に可能である。尚、逆にかかる条件の範囲を外
れることは目的とする品質即ち、成る一定以上の白変を
得ること、みかすを除去すること、処理物の脆化等の基
本品質の問題が解決できないのでｂ当でない。又、本発
明において究明した処理条件は相互に深い関連があり、
それぞれを補完するものであり、前記設定値の範囲内で
あれば適宜その条件を変更し、選択して用いることによ
り常に一定以上の前記したごとき品質の確保が可能どな
るものである。As described above, the present invention relates to knitting of cellulose fibers which are bleached materials,
We investigated the conditions necessary to obtain white discoloration over a certain period of time, that is, a Hunter whiteness of 80 or more, for fabrics, and calculated this into coefficients from a large amount of data to obtain a general formula, and the volume ratio described above. That is, this can be done with high efficiency and in a short time as long as the filling rate of the processing object into the processing chamber space is within the range of the general formula. On the other hand, if the conditions are outside the range, it will not be possible to solve the basic quality problems such as obtaining the desired quality, i.e., obtaining a certain level of white discoloration, removing scum, and embrittlement of the processed material. bIt's not true. In addition, the processing conditions investigated in the present invention are closely related to each other,
They are complementary to each other, and by appropriately changing the conditions and selecting and using them within the range of the set values, it is possible to always maintain the above-mentioned quality above a certain level.
更に本発明の実施における亜塩素酸ナトリウムの濃度は
純度１００％の亜塩素酸ナトリウムを使用したとき、こ
れを０．５ｇ／Ｉ以りの水溶液濃度で使用することが必
要であり、これ以下であると白変を８０以上にすること
は困難である。また本発明の加熱には高温の飽和蒸気、
赤外線、マイクロ波等を任意に用いることができるが特
に９０〜１５０℃の高温の飽和スチームを用いるのが処
理効果を高める上で好適である。Furthermore, when using 100% pure sodium chlorite, the concentration of sodium chlorite in the practice of the present invention must be used at an aqueous solution concentration of 0.5 g/I or higher; If so, it is difficult to achieve a white discoloration of 80 or higher. In addition, for heating in the present invention, high temperature saturated steam,
Although infrared rays, microwaves, etc. can be used arbitrarily, it is particularly preferable to use saturated steam at a high temperature of 90 to 150° C. in order to enhance the treatment effect.
以上のごとく本発明は亜塩素酸ナトリウムを用い従来法
と遜色のない漂白物を得ることができ、短時間での処理
が可能であるため、連続式高温高圧スチーマ−等を用い
て連続的には白物を得ることができるものである。As described above, the present invention uses sodium chlorite to obtain a bleached product that is comparable to conventional methods, and can be processed in a short time. is what you can get white goods from.
Claims (1)
液した後密閉化された室内に連続的に詰め込み処理する
に際し、該詰め込みの容積比を綿編、織地１に対し１０
以下の範囲とし、以下の式におけるＹの値が８０以上と
なるごとく下記一般式の範囲内における条件で処理する
ことを特徴とする綿編、織地の効率的漂白方法。 Ｙ＝０．０８Ａ＋０．００８２Ｂ−３．１２Ｃ＋８６．
７５但し、Ｙはハンター白度 Ａは密閉化された室内の温度で９０〜１５０℃の範囲 Ｂは密閉化された室内における滞留時間で１〜１５分の
範囲 Ｃは亜塩素酸ナトリウム液のｐＨの値で２．５〜４．０
の範囲[Scope of Claims] When knitted cotton fabric is immersed in a sodium chlorite solution, squeezed out, and then continuously stuffed into a sealed chamber, the volume ratio of the stuffing is set to 1. against 10
An efficient method for bleaching cotton knits and woven fabrics, characterized in that the treatment is carried out under the following general formula conditions such that the value of Y in the following formula is 80 or more. Y=0.08A+0.0082B-3.12C+86.
75 However, Y is the Hunter Whiteness A is the temperature in a sealed room, in the range of 90 to 150°C B is the residence time in the sealed room, and is in the range of 1 to 15 minutes C is the pH of the sodium chlorite solution 2.5 to 4.0 with a value of
range of
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59158468A JPS6141368A (en) | 1984-07-27 | 1984-07-27 | Efficient bleaching of cotton fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59158468A JPS6141368A (en) | 1984-07-27 | 1984-07-27 | Efficient bleaching of cotton fabric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6141368A true JPS6141368A (en) | 1986-02-27 |
Family
ID=15672398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59158468A Pending JPS6141368A (en) | 1984-07-27 | 1984-07-27 | Efficient bleaching of cotton fabric |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6141368A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0893973A (en) * | 1994-09-29 | 1996-04-12 | Sanko Gas Seiki Kk | Plug for gas cock |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5735073A (en) * | 1980-08-12 | 1982-02-25 | Japan Carlit Co Ltd | Bleaching of fibers |
-
1984
- 1984-07-27 JP JP59158468A patent/JPS6141368A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5735073A (en) * | 1980-08-12 | 1982-02-25 | Japan Carlit Co Ltd | Bleaching of fibers |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0893973A (en) * | 1994-09-29 | 1996-04-12 | Sanko Gas Seiki Kk | Plug for gas cock |
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