JPH04126878A - Method for preventing discoloration of dyed material - Google Patents
Method for preventing discoloration of dyed materialInfo
- Publication number
- JPH04126878A JPH04126878A JP2241741A JP24174190A JPH04126878A JP H04126878 A JPH04126878 A JP H04126878A JP 2241741 A JP2241741 A JP 2241741A JP 24174190 A JP24174190 A JP 24174190A JP H04126878 A JPH04126878 A JP H04126878A
- Authority
- JP
- Japan
- Prior art keywords
- dyed
- sodium thiosulfate
- cloth
- discoloration
- product
- 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
- 238000002845 discoloration Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims description 7
- 239000000463 material Substances 0.000 title description 2
- 239000004744 fabric Substances 0.000 claims abstract description 21
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 claims abstract description 14
- 235000019345 sodium thiosulphate Nutrition 0.000 claims abstract description 14
- 238000004043 dyeing Methods 0.000 claims abstract description 6
- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 abstract description 10
- COHYTHOBJLSHDF-BUHFOSPRSA-N indigo dye Chemical compound N\1C2=CC=CC=C2C(=O)C/1=C1/C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-BUHFOSPRSA-N 0.000 abstract description 4
- 239000007800 oxidant agent Substances 0.000 abstract description 3
- 238000011282 treatment Methods 0.000 abstract description 3
- 239000000975 dye Substances 0.000 description 8
- 235000000177 Indigofera tinctoria Nutrition 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 229940097275 indigo Drugs 0.000 description 6
- 239000007844 bleaching agent Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000004383 yellowing Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229930182559 Natural dye Natural products 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000004649 discoloration prevention Methods 0.000 description 1
- 239000007850 fluorescent dye Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000978 natural dye Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Coloring (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、インジゴ染料など堅牢度（耐光・耐ガス）に
問題のある染料によって染色したジーンズ製品あるいは
その素材であるデニム原反等の変色防止方法に関する。Detailed Description of the Invention (Industrial Field of Application) The present invention is aimed at preventing discoloration of jeans products or raw denim fabrics that are dyed with dyes such as indigo dyes that have poor fastness (light fastness and gas fastness). Regarding prevention methods.
（従来の技術）
ジーンズの素材として、天然染料であるインジゴを用い
て染色した所謂ブルーデニムが知られており、最近は、
このブルーデニムに主として塩素系の漂白剤を用いて脱
色し極淡色にする加工（ホワイトブリーチ）を施したも
のの需要が増えている。(Prior art) So-called blue denim dyed using the natural dye indigo is known as a material for jeans, and recently,
Demand is increasing for blue denim that has been bleached using mainly chlorine bleach to make it extremely pale (white bleach).
（発明が解決しようとする課題）
しかしながら、インジゴ染料は日光（紫外線）や酸化性
ガス（空気中の酸素等）に対する堅牢度が低く、そのた
め、ブルーデニムには変色（黄変）しやすいという欠点
があって、特に、ポワイトブリーチ加工を施したもので
は黄変が目立ち、マーケットクレームが起きやずいとい
う問題がある。(Problem to be solved by the invention) However, indigo dye has low fastness to sunlight (ultraviolet rays) and oxidizing gases (oxygen in the air, etc.), so blue denim has the disadvantage of being susceptible to discoloration (yellowing). There is a problem in that yellowing is particularly noticeable in products that have been subjected to point bleaching, making it difficult to generate market complaints.
上記変色は、インジゴが紫外線や空気中の酸素により過
酸化されイザヂンを生ずることによるものと考えられる
が、従来はインジゴ染料の宿命として半ば諦められてい
た格好であって、せいぜい、ビニールで密封するとか、
反物の場合は柔軟剤を付ＩＪることで変色が目立たない
ようにするといった程度の対策がなされているにすぎな
かった。The above discoloration is thought to be due to indigo being peroxidized by ultraviolet rays and oxygen in the air, producing Izadin, but this was previously considered to be the fate of indigo dyes, and at best, it was sealed with vinyl. And,
In the case of cloth, the only measures taken were to apply a softener to make the discoloration less noticeable.
本発明は上記問題点に鑑みてなされたものであって、染
色物、特にインジゴ染料等によって染色したデニム原反
やジーンズ製品の変色を防止することを目的とする。The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to prevent discoloration of dyed products, particularly denim fabrics and jeans products dyed with indigo dyes or the like.
（課題を解決するための手段）
本発明では、原反の染色あるいは原反若しくは製品の加
工における最終段階において、染色した原反あるいは加
工した原反若しくは製品にチオ硫酸ナトリウム（Ｎ ａ
２ Ｓ ２０３ ・ｓ Ｈ２０）を付着させ、該チオ
硫酸ナトリウムが付着した状態で前記原反あるいは製品
を保存するようにしたことによって」二記目的を達成し
た。(Means for Solving the Problems) In the present invention, sodium thiosulfate (Na
2 S 203 .s H20) was attached to the fabric, and the original fabric or product was stored in a state in which the sodium thiosulfate was attached, thereby achieving the second objective.
（作用）
染色あるいは染色後の加工の最終段階でチオ硫酸ナトリ
ウムが付着され、そのままの状態で原反あるいは製品が
保存されることにより、チオ硫酸ナトリウムが有する酸
化性ガスに対するカバリング効果と還元性とによって、
染料の酸化が抑制され、それによって変色が防止される
。なお、チオ硫酸ナトリウムは潮解性が比較的少ないた
め、−に記変色防止の作用は長期間持続される。(Function) Sodium thiosulfate is attached at the final stage of dyeing or processing after dyeing, and by storing the original fabric or product in that state, sodium thiosulfate has a covering effect against oxidizing gases and a reducing property. By,
Oxidation of the dye is inhibited, thereby preventing discoloration. In addition, since sodium thiosulfate has relatively little deliquescent property, the effect of preventing discoloration shown in - is maintained for a long period of time.
（実施例）
添付した図は本発明の一実施例に係るジーンズ製造の工
程図である。(Example) The attached diagram is a process diagram for manufacturing jeans according to an example of the present invention.
この実施例の場合、まず、例えば生地ナンバー８６０を
インジゴ染料によって染色し、これを縫製してジーンズ
製品とする。In the case of this embodiment, first, for example, fabric number 860 is dyed with indigo dye and sewn into a jeans product.
つぎに、このジーンズ製品を次亜塩素酸ナトリウム（Ｎ
ａＣ（！Ｏ）等の酸化剤（漂白剤）を用いて脱色しくブ
リーチ加工）、次いで、酸化剤を洗い落とす（ソーピン
グ）。Next, this jeans product is treated with sodium hypochlorite (N
Decolorize and bleach using an oxidizing agent (bleaching agent) such as aC (!O), then wash off the oxidizing agent (soaping).
そして、上記一連の処理が終わった後で、０゜５〜５％
のチオ硫酸ナトリウム水溶液中に上記ジーンズ製品を浸
漬し、脱水し、乾燥させる。After the above series of treatments are completed, 0°5~5%
The jeans product is immersed in an aqueous solution of sodium thiosulfate, dehydrated, and dried.
このようにして最終段階でチオ硫酸ナトリウムを付着さ
せた製品を、そのままの状態で保存することにより、Ｊ
ＩＳ規格（Ｊ ｌ５−ＬＯ８４１゜ＬＯ８４１，ＬＯ８
４３）で０５〜２級程度染色堅牢度が向上する。なお、
この堅牢度向」二の程度は、染料の種類や前工程の差に
よって」二記範囲で多少ばらつくものであるが、いずれ
の場合も変色防止に大きく寄与し、それによって、変色
によるマーケットクレームをほぼ完全に解消することが
できる。By storing the product to which sodium thiosulfate has been attached in the final stage in this way, J.
IS standard (J l5-LO841゜LO841, LO8
43), the color fastness is improved by about 05 to 2 grade. In addition,
The degree of fastness varies somewhat depending on the type of dye and the difference in the previous process, but in any case, it greatly contributes to preventing discoloration, thereby eliminating market complaints due to discoloration. It can be almost completely eliminated.
なお、上記効果は生地ナンバー８６０を用いた場合のほ
か、生地ナンバー３３００．１３５，７５５等の他の生
地を用いた場合にも同様に得られるものである。また、
インジゴ染料に蛍光染料を混合した染料によって染色し
たものにおいても同様の効果が得られる。さらに、上記
実施例では浸漬によってチオ硫酸ナトリウムを付着させ
た場合を説明したが、スプレー等他の付着方法も可能で
ある。Note that the above effect can be obtained not only when fabric number 860 is used but also when other fabrics such as fabric number 3300, 135, 755, etc. are used. Also,
A similar effect can be obtained by dyeing with a mixture of indigo dye and fluorescent dye. Furthermore, in the above embodiments, the case where sodium thiosulfate was deposited by dipping was explained, but other deposition methods such as spraying are also possible.
また、上記実施例は製品加工の最終段階においてチオ硫
酸ナトリウムを付着させたものであるが、反物で保管す
る場合には、染色工程の最終処理としてチオ硫酸ナトリ
ウムを付着させるようにすることで、同様の変色防止効
果が得られる。In addition, in the above example, sodium thiosulfate was applied at the final stage of product processing, but if the product is to be stored in cloth, sodium thiosulfate may be applied as a final treatment in the dyeing process. Similar discoloration prevention effects can be obtained.
（発明の効果）
本発明は以上のように構成されているので、インジゴ染
料等の堅牢度の低い染料の耐光、耐ガス堅牢度を高めて
ジーンズ製品等染色物の変色を防止することができる。(Effects of the Invention) Since the present invention is configured as described above, it is possible to increase the light fastness and gas fastness of dyes with low fastness such as indigo dyes, and prevent discoloration of dyed products such as jeans products. .
図は本発明の一実施例に係るジーンズ製造の工程図であ
る。The figure is a process diagram for manufacturing jeans according to an embodiment of the present invention.
Claims (1)
ける最終段階において、染色した原反あるいは加工した
原反若しくは製品にチオ硫酸ナトリウムを付着させ、該
チオ硫酸ナトリウムが付着した状態で前記原反あるいは
製品を保存することを特徴とする染色物の変色防止方法
。(1) At the final stage of dyeing the original fabric or processing the original fabric or product, attach sodium thiosulfate to the dyed original fabric or processed original fabric or product, and leave the original fabric with the sodium thiosulfate attached. Or a method for preventing discoloration of dyed products, which is characterized by preserving the product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2241741A JPH04126878A (en) | 1990-09-11 | 1990-09-11 | Method for preventing discoloration of dyed material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2241741A JPH04126878A (en) | 1990-09-11 | 1990-09-11 | Method for preventing discoloration of dyed material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04126878A true JPH04126878A (en) | 1992-04-27 |
Family
ID=17078855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2241741A Pending JPH04126878A (en) | 1990-09-11 | 1990-09-11 | Method for preventing discoloration of dyed material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04126878A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5685944A (en) * | 1994-04-28 | 1997-11-11 | Fujicopian Co., Ltd. | Film transfer apparatus and a film transfer roller used therein |
| US6379461B1 (en) | 1999-05-28 | 2002-04-30 | Tombow Pencil Co., Ltd. | Coating tool |
-
1990
- 1990-09-11 JP JP2241741A patent/JPH04126878A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5685944A (en) * | 1994-04-28 | 1997-11-11 | Fujicopian Co., Ltd. | Film transfer apparatus and a film transfer roller used therein |
| US6379461B1 (en) | 1999-05-28 | 2002-04-30 | Tombow Pencil Co., Ltd. | Coating tool |
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