JP4744224B2 - Pretreatment method for preventing thermal embrittlement of cellulose-containing fabric - Google Patents
Pretreatment method for preventing thermal embrittlement of cellulose-containing fabric Download PDFInfo
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Description
本発明は、セルロース系繊維を含む布帛の前処理加工方法に関するものであり、更に詳しくは、セルロース系繊維を含む布帛の熱による黄変や強度低下などの布帛の劣化を防止するための前処理方法に関するものである。 The present invention relates to a pretreatment processing method for a fabric containing cellulosic fibers, and more specifically, a pretreatment for preventing deterioration of the fabric such as yellowing or strength reduction due to heat of the fabric containing cellulosic fibers. It is about the method.
現在、例えば綿やレーヨン等のセルロース系繊維とポリエステル繊維やポリウレタン弾性繊維などの合成繊維からなる布帛は、染色工程等の前の工程で行う前処理加工としてプレセット加工が行われている（特許文献１参照）。
このプレセット加工は、布帛を１８０〜２００℃程度の乾熱温度でセットするもので、この乾熱セットにより、布帛の寸法安定性の向上や染色シワ防止、或いは、ポリウレタンなどの弾性繊維を用いた布帛に対しては、布帛の耳巻き防止を図ることができる。
At present, for example, a fabric made of cellulose fibers such as cotton and rayon and synthetic fibers such as polyester fibers and polyurethane elastic fibers is subjected to a preset process as a pretreatment process performed in a previous process such as a dyeing process (patent) Reference 1).
In this presetting process, the fabric is set at a dry heat temperature of about 180 to 200 ° C. The dry heat set improves the dimensional stability of the fabric, prevents wrinkles, or uses elastic fibers such as polyurethane. It is possible to prevent the fabric from being wrapped around the ears.
しかし、このような乾熱セットでは、一般にセルロース系繊維が黄変したり、熱劣化により強度低下などが発生することが多い。
また、布帛が硬化して風合いが悪くなる難点がある。
因みに、セルロース繊維は、約１５０℃以上の乾熱処理加工を行うと熱酸化が起こり、分解炭化が起こり始める。
However, in such a dry heat set, in general, cellulosic fibers often turn yellow or a decrease in strength occurs due to thermal deterioration.
Moreover, there exists a difficulty which a fabric hardens | cures and a texture becomes bad.
Incidentally, when the fiber is subjected to a dry heat treatment at about 150 ° C. or higher, thermal oxidation occurs and decomposition carbonization begins to occur.
このように、布帛が熱処理により黄変することは布帛の品質として大きく劣ることとなり、そのための防止方法が必要とされている。 Thus, the yellowing of the fabric by heat treatment is greatly inferior as the quality of the fabric, and a prevention method for that is required.
本発明は、上記の如き問題点を背景になされたものである。
すなわち、本発明は、セルロース系繊維を含む布帛に対して、高温での乾熱セットを行っても、セルロース系繊維の黄変及び風合いの硬化などの脆化が発生することのない布帛の加工方法を提供しようとするものである。
The present invention has been made against the background of the above problems.
That is, according to the present invention, processing of a fabric that does not cause embrittlement such as yellowing of the cellulosic fibers and hardening of the texture even when dry heat set at a high temperature is performed on the fabric containing cellulosic fibers. Is to provide a method.
本発明者等は上記の課題を解決すべく鋭意検討した結果、黄変防止性物質を特定することで上記の問題点を解決できることを見出し、この知見により本発明に到達したものである。 As a result of intensive studies to solve the above-mentioned problems, the present inventors have found that the above-mentioned problems can be solved by specifying a yellowing-preventing substance, and this knowledge has been reached.
即ち、本発明は、（１）、綿繊維の他にポリウレタン繊維を含む布帛に対して行う熱脆化防止のための前処理加工法であって、布帛に０. １〜１０. ０重量％のスルホン酸塩を含むｐＨが３．０〜６．０の処理液を付与して、該スルホン酸塩を前記綿繊維の水酸基に水素結合させ、その後、１８０〜２００℃で乾熱セットすることにより、ＪＩＳ−Ｚ８７１５に準ずる白色度指数を５５以上とすることを特徴とする前処理加工法に存する。 That is, the present invention is (1) a pre-treatment processing method for preventing thermal embrittlement performed on a fabric containing polyurethane fibers in addition to cotton fibers, and the fabric has a content of 0.1 to 10.0% by weight. A treatment solution containing sulfonic acid salt having a pH of 3.0 to 6.0 is applied to hydrogen bond the sulfonic acid salt to the hydroxyl group of the cotton fiber , and then set to dry heat at 180 to 200 ° C. Therefore, the whiteness index according to JIS-Z8715 is 55 or more .
また、本発明は、（２）、処理液がスルホン酸塩と不揮発性の酸を含む処理液である上記（１）記載の前処理加工法。 Moreover, this invention is the pre-processing processing method of said (1) description whose (2) and a process liquid are a process liquid containing a sulfonate and a non-volatile acid.
また、本発明は、（３）、処理液がスルホン酸塩とキレート剤を含む処理液である上記（１）記載の前処理加工法。 Moreover, this invention is the pre-processing processing method of said (1) description whose (3) and a process liquid are a process liquid containing a sulfonate and a chelating agent.
また、本発明は、（４）、処理液がスルホン酸塩と不揮発性の酸とキレート剤を含む処理液である上記（１）記載の前処理加工法に存する。 Moreover, this invention exists in the pre-processing processing method of the said (1) description whose processing liquid is a processing liquid containing a sulfonate, a non-volatile acid, and a chelating agent.
また、本発明は、（５）、乾熱セット後の布帛のＪＩＳ−Ｌ１０９６Ｄ法に準ずる引裂強度が６５０ｋｇｆ以上であり、且つＪＩＳ−Ｌ１０９６Ａ法に準ずる風合いが５０ｍｍ以下である上記（１）記載の前処理加工法に存する。 Further, the present invention is (5) described in (1) above, wherein the fabric after dry heat setting has a tear strength according to the JIS-L1096D method of 650 kgf or more and a texture according to the JIS-L1096A method of 50 mm or less . Pre-processing method.
本発明の目的に沿ったものであれば（１）から（５）を適宜組み合わせる構成も採用可能である。
A configuration in which (1) to ( 5 ) are appropriately combined can be adopted as long as it meets the object of the present invention.
プレセット加工時にセルロース系繊維を含む布帛に対して、スルホン酸塩を含む処理液を付与することで、セルロース系繊維の黄変、及び強度低下等の脆化の発生が防止される。
特に、セルロース系繊維とポリウレタン系弾性繊維を含む布帛を１８０℃を越える温度で乾熱セットした場合には、セルロースの黄変及び脆化による強度低下や風合いの硬化を抑えつつポリウレタン系弾性繊維による布帛の耳巻きが防止されるなど、その効果は更に顕著に現れる。
また、不揮発性の酸を加えることでセルロースの黄変や脆化を更に効果的に抑制できる。
同様に布帛にスルホン酸塩とキレート剤を含む処理液を付与することで、或いは、スルホン酸塩とキレート剤と不揮発性の酸を含む処理液を付与することで、熱酸化促進能を有する金属イオンが取り除かれて、更に脆化を抑えることができる。
By applying a treatment liquid containing a sulfonate to a cloth containing cellulosic fibers at the time of presetting, yellowing of the cellulosic fibers and embrittlement such as strength reduction are prevented.
In particular, when a fabric containing cellulosic fibers and polyurethane elastic fibers is dry-heat set at a temperature exceeding 180 ° C., the polyurethane elastic fibers can suppress the decrease in strength and texture hardening due to yellowing and embrittlement of cellulose. The effect is further prominent, such as preventing the ear winding of the fabric.
Moreover, yellowing and embrittlement of cellulose can be more effectively suppressed by adding a non-volatile acid.
Similarly, a metal having thermal oxidation promoting ability by applying a treatment liquid containing a sulfonate and a chelating agent to a fabric, or by applying a treatment liquid containing a sulfonate, a chelating agent and a nonvolatile acid. Ions are removed, and embrittlement can be further suppressed.
本発明は、セルロース系繊維を含む布帛に対して特定の処理液、即ちスルホン酸塩を使った処理加工に特徴がある。
この処理加工を行うことによって、その後、１８０℃〜２００℃で乾熱セットをしても、布帛、特に布帛を構成するセルロース系繊維の黄変、強度低下や風合いの硬化などの脆化、を防止することができる。
The present invention is characterized by processing using a specific processing liquid, that is, a sulfonate, for a fabric containing cellulosic fibers.
By carrying out this processing, even if dry heat is set at 180 ° C. to 200 ° C. thereafter, the fabric, in particular, the cellulosic fibers constituting the fabric is yellowed, the strength is reduced, and the brittleness such as the hardening of the texture. Can be prevented.
布帛に処理液を付与する方法については、パディング法、グラビア法、ロータリースクリーン法、インクジェット法等が採用でき、処理液が布帛に均一に付与できればよく特に限定されない。
ここで処理液とは、スルホン酸塩を含む水溶液であり、好ましくはスルホン酸塩と不揮発性の酸を含む水溶液やスルホン酸塩とキレート剤を含む水溶液であり、更に好ましくはスルホン酸塩と不揮発性の酸及びキレート剤を含む水溶液である。
The method for applying the treatment liquid to the fabric is not particularly limited as long as the padding method, the gravure method, the rotary screen method, the ink jet method, and the like can be adopted and the treatment liquid can be uniformly applied to the fabric.
Here, the treatment liquid is an aqueous solution containing a sulfonate, preferably an aqueous solution containing a sulfonate and a nonvolatile acid, or an aqueous solution containing a sulfonate and a chelating agent, and more preferably a sulfonate and a nonvolatile. An aqueous solution containing an acid and a chelating agent.
そして、布帛にスルホン酸塩を含む処理液を付与することで、スルホン酸塩がセルロース系繊維の水酸基に水素結合することにより、セルロース系繊維の熱酸化を防ぎ黄変、及び強度低下や風合いの硬化を防止する。 Then, by applying a treatment liquid containing a sulfonate to the fabric, the sulfonate is hydrogen-bonded to the hydroxyl group of the cellulosic fiber, thereby preventing thermal oxidation of the cellulosic fiber, yellowing, and a decrease in strength and texture. Prevent curing.
ここでスルホン酸塩の使用量は０. １〜１０. ０重量％の範囲であることが必要である。（ここで重量％とは処理液に対するスルホン酸塩の重量濃度である）。
スルホン酸塩が０. １重量％より少ないと脆化を十分抑えられなくなり、また１０. ０重量％を越えると風合いが硬化するので好ましくない。
また、本発明で好ましく用いられるスルホン酸塩は 分子量１０００以下のものを用いる。
分子量が１０００より大きくなるとスルホン酸塩を含む処理液の粘度が高くなるおそれがあり、加工にムラが生じるおそれがある。また、布帛が硬くなったり、十分な白度が得られないおそれがある。
Here, the amount of sulfonate used must be in the range of 0.1 to 10.0% by weight. (Here,% by weight is the weight concentration of the sulfonate with respect to the treatment liquid).
When the sulfonate is less than 0.1% by weight, embrittlement cannot be sufficiently suppressed, and when it exceeds 10.0% by weight, the texture is hardened.
Further, the sulfonate salt preferably used in the present invention has a molecular weight of 1000 or less.
When the molecular weight is greater than 1000, the viscosity of the treatment liquid containing the sulfonate may be increased, and processing may be uneven. Moreover, there exists a possibility that a fabric may become hard or sufficient whiteness may not be obtained.
ここで、処理液に含まれるスルホン酸塩としては、脂肪族系スルホン酸塩若しくは芳香族系スルホン酸塩より選ばれた少なくとも１以上のものである。
脂肪族系スルホン酸塩としては、メタンスルホン酸塩、α−オレフィンスルホン酸塩等が挙げられる。
また、芳香族系スルホン酸塩としては、ベンゼンスルホン酸塩、p −トルエンスルホン酸塩、ナフタリン−α−スルホン酸塩、ナフタリン−β−スルホン酸塩等が挙げられる。
Here, the sulfonate contained in the treatment liquid is at least one selected from an aliphatic sulfonate or an aromatic sulfonate.
Examples of the aliphatic sulfonate include methane sulfonate and α-olefin sulfonate.
Examples of the aromatic sulfonate include benzene sulfonate, p-toluene sulfonate, naphthalene-α-sulfonate, naphthalene-β-sulfonate.
また、塩の種類としては、リチウム、ナトリウム、カリウムなどのアルカリ金属塩、アンモニウム塩、モノエタノール置換、ジエタノール置換などのアルカノール置換アンモニウム塩などを用いることができる。 Moreover, as a kind of salt, alkali metal salts, such as lithium, sodium, and potassium, ammonium salt, alkanol substituted ammonium salts, such as monoethanol substitution and diethanol substitution, etc. can be used.
また、スルホン酸塩を付与する際に、よりセルロース繊維とのより反応をしやすくするため不揮発性酸を併用することが好ましい。
用いることのできる不揮発性の酸としては、酒石酸、クエン酸、リンゴ酸などが挙げられるが、処理液のｐＨを３．０〜６．０にすることができれば特に限定されない。
処理液のｐＨ３．０以下では、酸によるセルロース繊維の加水分解がおこり脆化がおこる。
また処理液のｐＨ６．０以上では、スルホン酸塩とセルロース繊維の反応が不充分であるため黄変防止効果が低くなる。
In addition, when the sulfonate is provided, it is preferable to use a non-volatile acid in combination in order to make the reaction with the cellulose fiber easier.
Nonvolatile acids that can be used include tartaric acid, citric acid, malic acid, and the like, but are not particularly limited as long as the pH of the treatment solution can be adjusted to 3.0 to 6.0.
When the pH of the treatment liquid is 3.0 or less, hydrolysis of cellulose fibers by acid occurs and embrittlement occurs.
In addition, when the pH of the treatment liquid is 6.0 or more, the reaction between the sulfonate and the cellulose fiber is insufficient, so the yellowing prevention effect is low.
また更に、キレート剤を処理液に付加することにより、熱酸化促進物であるＦｅ，Ｃｕ等の金属イオンを除去することができ、より効果的に上述した脆化が抑えられる。
キレート剤としては、アミノポリカルボン酸塩、ヒドロキシカルボン酸塩、ポリカルボン酸塩、エチレンジアミン四酢酸、ニトリロ三酢酸、ジエチレントリアミン五酢酸等が挙げられる。
Furthermore, by adding a chelating agent to the treatment liquid, metal ions such as Fe and Cu that are thermal oxidation accelerators can be removed, and the above-described embrittlement can be more effectively suppressed.
Examples of chelating agents include aminopolycarboxylates, hydroxycarboxylates, polycarboxylates, ethylenediaminetetraacetic acid, nitrilotriacetic acid, and diethylenetriaminepentaacetic acid.
また、本発明の効果が妨げられない範囲において、処理液に対して、適宜、精練剤、帯電防止剤、柔軟剤等を含ませることも当然可能である。 Further, as long as the effect of the present invention is not hindered, it is of course possible to appropriately include a scouring agent, an antistatic agent, a softening agent and the like in the treatment liquid.
本発明の前処理加工法は、上述した処理液を布帛に付与した後、乾熱セットを行うが、 その乾熱セットの温度が１８０〜２００℃であるときに極めて有効である。
処理温度が１８０℃より低いとポリエステル繊維やポリウレタン系弾性繊維の形態安定が不十分で、セット効果が必ずしも満足するものとはならない。
また、処理温度が２００℃より高いとポリエステル繊維やポリウレタン系繊維等の合成繊維にも熱劣化や強度低下等が起こり易い。
The pretreatment method of the present invention performs dry heat setting after applying the treatment liquid described above to the fabric, and is extremely effective when the temperature of the dry heat set is 180 to 200 ° C.
When the treatment temperature is lower than 180 ° C., the shape stability of the polyester fiber or polyurethane elastic fiber is insufficient, and the setting effect is not always satisfied.
In addition, when the treatment temperature is higher than 200 ° C., the synthetic fiber such as polyester fiber or polyurethane fiber is likely to be thermally deteriorated or the strength is lowered.
本発明で対象となる布帛の例としては、主にセルロース系繊維と、ポリエステル系繊維やポリウレタン系弾性繊維の混交編物（又は織物）の布帛があるが、これのみに限定されない。
セルロース系繊維単独でも、セルロース系繊維とその他の繊維との混交編物（または織物）の布帛であっても、本発明の前処理加工法は有効である。
Examples of the fabrics that are the subject of the present invention are mainly mixed fabrics (or woven fabrics) of cellulose fibers and polyester fibers or polyurethane elastic fibers, but are not limited thereto.
The pretreatment method of the present invention is effective whether it is a cellulosic fiber alone or a mixed knitted fabric (or woven fabric) of cellulosic fibers and other fibers.
本発明でいうセルロース系繊維とは、麻、綿などの天然繊維やビスコースレーヨン、銅アンモニアレーヨン、ポリノジック、精製セルロースなどの再生繊維、アセテート、トリアセテートなどの半合成繊維が挙げられる。
合成繊維としてはカチオン可染ポリエステル、トリメチレンテレフタレート、ポリエチレンテレフタレートなどのポリエステル繊維、ナイロンなどのポリアミド繊維、アクリロニトリルなどのアクリル繊維、ポリウレタン繊維などの合成繊維を挙げることができる。
Examples of the cellulosic fiber in the present invention include natural fibers such as hemp and cotton, regenerated fibers such as viscose rayon, copper ammonia rayon, polynosic and purified cellulose, and semisynthetic fibers such as acetate and triacetate.
Examples of synthetic fibers include polyester fibers such as cationic dyeable polyester, trimethylene terephthalate, and polyethylene terephthalate, polyamide fibers such as nylon, acrylic fibers such as acrylonitrile, and synthetic fibers such as polyurethane fibers.
これら繊維の組織形態は特に限定されるものではなく、例えば、ポリウレタン系弾性繊維の裸糸をそのまま用いて交編、交織してもよく、セルロース系繊維を巻き付けた被覆糸を交編、交織してもよい。
また、編み組織としては経編でも緯編でもよく、トリコット、ラッセル、丸編等限定されるものではない。
また、布帛として織物も当然適用可能である。
The structure of these fibers is not particularly limited. For example, a bare polyurethane polyurethane fiber may be used for knitting and knitting as it is, or a coated yarn wrapped with cellulosic fibers may be knitted and woven. May be.
The knitting structure may be warp knitting or weft knitting, and is not limited to tricot, russell, circular knitting or the like.
Of course, a woven fabric is also applicable as the fabric.
次に、本発明について実施例を挙げて説明するが、本発明は、必ずしも以下の実施例に限定されるものではない。
以下の実施例における性能の評価方法は下記の方法に従って評価した。
〔引裂強度〕
ＪＩＳ Ｌ １０９６ Ｄ法（ペンジュラム法）に準じて、エレメンドルフ型引裂試験機を用いて、布帛の状態での引裂強度を測定した。単位はｋｇｆである。
引裂強度が６５０ｋｇｆ以上であれば実用上問題ないとする。
〔白度〕
ＪＩＳ Ｚ ８７１５に準じて、布帛の表面色濃度を分光光度計（グレタグマクベス社製 ＣＥ−３０００）を使用して測定し、白色度指数（Ｗ）を算出した。
白色度指数（Ｗ）が比較例１よりも５以上高いと白度が良いとする（数字が大きいほど白さの度合いが大きい）。
〔風合い〕
ＪＩＳ Ｌ １０９６ Ａ法（４５°カンチレバー法）により布帛の風合いを評価した。単位はｍｍ。
５０ｍｍ以下であれば軟らかく風合いがよいと判断する（数字が大きいほど硬い）。
Next, although an example is given and the present invention is explained, the present invention is not necessarily limited to the following examples.
The performance evaluation methods in the following examples were evaluated according to the following methods.
(Tear strength)
In accordance with JIS L 1096 D method (penjuram method), the tear strength in the state of the fabric was measured using an Elmendorf-type tear tester. The unit is kgf.
If the tear strength is 650 kgf or more, there is no practical problem.
[Whiteness]
According to JIS Z 8715, the surface color density of the fabric was measured using a spectrophotometer (CE-3000 manufactured by Gretag Macbeth Co.), and the whiteness index (W) was calculated.
When the whiteness index (W) is 5 or more higher than that of Comparative Example 1, it is assumed that the whiteness is good (the larger the number, the greater the degree of whiteness).
[Texture]
The texture of the fabric was evaluated by the JIS L 1096 A method (45 ° cantilever method). The unit is mm.
If it is 50 mm or less, it is judged that it is soft and the texture is good (the larger the number, the harder).
〔参考例１〕
まず綿繊維糸（３０番手単糸）９０％／ポリウレタン（ロイカＣ８０ ４４０）１０％の織布（布帛）を用意した。
次に、この織布にスルホン酸ソーダを含む処理液を付与した。
すなわちこの織布を、分子量３００の直鎖アルキルベンゼンスルホン酸ソーダ１．０重量％を含む常温水溶液に５秒浸漬した。
その後、温度１９５℃にて５分間、乾熱セットした。
乾熱セット後の織布に対して、「白度」、「強度」、及び「風合い」を測定した。
その結果を表１に示す。
[ Reference Example 1 ]
First, a woven fabric (fabric) of 90% cotton fiber yarn (30th single yarn) / 10% polyurethane (Roika C80 440) was prepared.
Next, a treatment liquid containing sodium sulfonate was applied to the woven fabric.
That is, this woven fabric was immersed for 5 seconds in a room temperature aqueous solution containing 1.0% by weight of linear alkylbenzene sulfonate sodium salt having a molecular weight of 300.
Thereafter, dry heat setting was performed at a temperature of 195 ° C. for 5 minutes.
The “whiteness”, “strength”, and “texture” were measured for the woven fabric after the dry heat setting.
The results are shown in Table 1.
〔実施例１〕
参考例１と同様の織布を分子量３００の直鎖アルキルベンゼンスルホン酸ソーダ８．０重量％、不揮発性酸として酒石酸０．０５重量％を含む常温水溶液に５秒浸漬した後、温度１９５℃にて５分間、乾熱セットした。
乾熱セット後の織布に対して、「白度」、「強度」、及び「風合い」を測定した。
その結果を表１に示す。
[ Example 1 ]
A woven fabric similar to that in Reference Example 1 was immersed in a normal temperature aqueous solution containing 8.0% by weight of linear alkylbenzene sulfonic acid sodium having a molecular weight of 300 and 0.05% by weight of tartaric acid as a non-volatile acid, and then at a temperature of 195 ° C. Dry heat set for 5 minutes.
The “whiteness”, “strength”, and “texture” were measured for the woven fabric after the dry heat setting.
The results are shown in Table 1.
〔参考例２〕
参考例１と同様の織布を分子量３００の直鎖アルキルベンゼンスルホン酸ソーダ８．０重量％、キレート剤としてＥＤＴＡ０．０５重量％を含む常温水溶液に５秒浸漬した後、温度１９５℃にて５分間、乾熱セットした。
乾熱セット後の織布に対して、「白度」、「強度」、及び「風合い」を測定した。
その結果を表１に示す。
[ Reference Example 2 ]
A woven fabric similar to that of Reference Example 1 was immersed in a normal temperature aqueous solution containing 8.0% by weight of linear alkylbenzene sulfonate having a molecular weight of 300 and 0.05% by weight of EDTA as a chelating agent for 5 minutes at a temperature of 195 ° C. Set to dry heat.
The “whiteness”, “strength”, and “texture” were measured for the woven fabric after the dry heat setting.
The results are shown in Table 1.
〔実施例２〕
参考例１と同様の織布をαオレフィンスルホン酸ソーダ２．０重量％、不揮発性酸として酒石酸０．０５重量％、キレート剤としてＥＤＴＡ０．０５重量％を含む常温水溶液に５秒浸漬した後、温度１９５℃にて５分間、乾熱セットした。
乾熱セット後の織布に対して「白度」、「強度」、及び「風合い」を測定した。
その結果を表１に示す。
[ Example 2 ]
After immersing a woven fabric similar to Reference Example 1 in a normal temperature aqueous solution containing 2.0% by weight of α-olefin sulfonic acid soda, 0.05% by weight of tartaric acid as a non-volatile acid, and 0.05% by weight of EDTA as a chelating agent, Dry heat setting was performed at a temperature of 195 ° C. for 5 minutes.
The “whiteness”, “strength”, and “texture” were measured on the woven fabric after the dry heat setting.
The results are shown in Table 1.
〔比較例１〕
参考例１と同様の織布を、常温水に５秒浸漬した後、温度１９５℃にて５分間、乾熱セットした。
乾熱セット後の織布に対して、「白度」、「強度」、及び「風合い」を測定した。
その結果を表１に示す。
[Comparative Example 1]
A woven fabric similar to that in Reference Example 1 was immersed in room temperature water for 5 seconds, and then set to dry heat at a temperature of 195 ° C. for 5 minutes.
The “whiteness”, “strength”, and “texture” were measured for the woven fabric after the dry heat setting.
The results are shown in Table 1.
〔比較例２〕
参考例１と同様の織布を、分子量３００の直鎖アルキルベンゼンスルホン酸ソーダ０．０１重量％を含む常温水溶液に５秒浸漬した後、温度１９５℃にて５分間、乾熱セットした。
乾熱セット後の織布に対して、「白度」、「強度」、及び「風合い」を測定した。
その結果を表１に示す。
[Comparative Example 2]
A woven fabric similar to that of Reference Example 1 was immersed in a room temperature aqueous solution containing 0.01% by weight of linear alkylbenzene sulfonate sodium salt having a molecular weight of 300 for 5 seconds, and then set to dry heat at a temperature of 195 ° C. for 5 minutes.
The “whiteness”, “strength”, and “texture” were measured for the woven fabric after the dry heat setting.
The results are shown in Table 1.
〔比較例３〕
参考例１と同様の織布を、分子量３００の直鎖アルキルベンゼンスルホン酸ソーダ１５重量％を含む常温水溶液に５秒浸漬した後、温度１９５℃にて５分間、乾熱セットした。
乾熱セット後の織布に対して、「白度」、「強度」、及び「風合い」を測定した。
その結果を表１に示す。
[Comparative Example 3]
A woven fabric similar to that in Reference Example 1 was immersed in a room temperature aqueous solution containing 15% by weight of a linear alkylbenzene sulfonic acid sodium salt having a molecular weight of 300 for 5 seconds, and then set to dry heat at a temperature of 195 ° C. for 5 minutes.
The “whiteness”, “strength”, and “texture” were measured for the woven fabric after the dry heat setting.
The results are shown in Table 1.
〔比較例４〕
参考例１と同様の織布を分子量２０００のジヒドロキシジフェニルスルホンホルマリン重縮合物１．０重量％、不揮発性酸として酒石酸０．０５重量％、キレート剤としてＥＤＴＡ０．０５重量％を含む常温水溶液に５秒浸漬した後、温度１９５℃にて５分間、乾熱セットした。
乾熱セット後の織布に対して、「白度」、「強度」、及び「風合い」を測定した。
その結果を表１に示す。
[Comparative Example 4]
A woven fabric similar to that of Reference Example 1 was added to a room temperature aqueous solution containing 1.0% by weight of a dihydroxydiphenylsulfone formalin polycondensate having a molecular weight of 2000, 0.05% by weight of tartaric acid as a non-volatile acid, and 0.05% by weight of EDTA as a chelating agent. After dipping for 2 seconds, dry heat was set at a temperature of 195 ° C. for 5 minutes.
The “whiteness”, “strength”, and “texture” were measured for the woven fabric after the dry heat setting.
The results are shown in Table 1.
〔評価〕
以上述べた実施例、比較例及び参考例から、本発明の前処理加工法により、布帛に対する黄変、及び強度低下、風合いの低下等の脆化の発生が防止されることが分かった。
[Evaluation]
From the examples , comparative examples and reference examples described above, it has been found that the pretreatment method of the present invention prevents yellowing of the fabric and the occurrence of embrittlement such as strength reduction and texture reduction.
〔表１〕
Claims (5)
布帛に０. １〜１０. ０重量％の分子量１０００以下のスルホン酸塩を含むｐＨが３．０〜６．０の処理液を付与して、該スルホン酸塩を前記綿繊維の水酸基に水素結合させ、その後、１８０〜２００℃で乾熱セットすることにより、ＪＩＳ−Ｚ８７１５に準ずる白色度指数を５５以上とすることを特徴とする前処理加工法。 A pretreatment method for preventing thermal embrittlement performed on a fabric containing polyurethane fibers in addition to cotton fibers ,
A treatment liquid having a pH of 3.0 to 6.0 containing 0.1 to 10.0 % by weight of a sulfonate having a molecular weight of 1000 or less is applied to the fabric, and the sulfonate is hydrogenated to the hydroxyl group of the cotton fiber. A pretreatment processing method characterized in that the whiteness index conforming to JIS-Z8715 is set to 55 or more by bonding and then setting at 180 to 200 ° C. by dry heat.
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| JPS57210086A (en) * | 1981-06-19 | 1982-12-23 | Toppan Printing Co Ltd | Treatment for modifying cellulose fiber containing structure |
| JP2001146629A (en) * | 1999-11-19 | 2001-05-29 | Fuji Spinning Co Ltd | Modified regenerated cellulose fiber |
| JP2002339268A (en) * | 2001-05-11 | 2002-11-27 | Seiren Co Ltd | Retreatment finishing method for improving dyeability of polyamide-based fiber |
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| JPS57210086A (en) * | 1981-06-19 | 1982-12-23 | Toppan Printing Co Ltd | Treatment for modifying cellulose fiber containing structure |
| JP2001146629A (en) * | 1999-11-19 | 2001-05-29 | Fuji Spinning Co Ltd | Modified regenerated cellulose fiber |
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