JP3806380B2 - Manufacturing method of flameproof cloth - Google Patents

Description

【０００７】
【化４】

【０００８】
上記布を構成する綿繊維には合成樹脂繊維が混合していてもよい。そして、上記綿繊維からなる布の形態も特に限定されず、例えば、織布、編布、不織布等が挙げられる。
【０００９】
本発明の防炎布の製造方法では、上記綿繊維からなる布に必要に応じて精練、漂白処理を施した上で、先ず、上記式（１）で示した防炎剤と上記式（２）で示した化合物と塩化マグネシウムとを水中に溶解させてなる防炎処理水溶液中に上記綿繊維からなる布を浸漬させて、綿繊維からなる布に防炎処理水溶液を含浸させる。
【００１０】
上記防炎処理水溶液中における上記式（２）で示した化合物の含有量は、少ないと、得られる防炎布の防炎性の洗濯に対する耐久性が低下すると共に柔軟性が低下し、又、多いと、吸水性が低下するので、上記式（１）で示した防炎剤１００重量部に対して１０〜３０重量部に限定され、１５〜２５重量部が好ましく、１６〜２３重量部がより好ましい。
【００１１】
又、上記防炎処理水溶液中における塩化マグネシウムの含有量は、少ないと、得られる防炎布の柔軟性が低下し、又、多いと、得られる防炎布がべたつくので、上記式（１）で示した防炎剤１００重量部に対して１〜３重量部に限定され、１．４〜１．８重量部が好ましい。
【００１２】
更に、上記防炎処理水溶液中における水の量は、少ないと、防炎処理水溶液の粘度が高くなって、布に充分に防炎処理水溶液を含浸させることができないことがあり、又、多いと、防炎処理水溶液中の上記防炎剤、上記式（２）で示される化合物、及び、塩化マグネシウムの濃度が相対的に薄くなって布中に充分な量を含浸させることができないことがあるので、上記式（１）で示される防炎剤１００重量部に対して１３０〜１６０重量部に限定され、１４０〜１５０重量部が好ましい。
【００１３】
上記綿繊維からなる布を上記防炎処理水溶液中に浸漬させる時間は、短いと、布中に防炎処理水溶液を充分に含浸させることができないことがあり、又、長くても、防炎処理水溶液が布中に含浸する量に大きな差は生じないので、１５〜４５分が好ましく、２０〜４０分がより好ましい。又、上記綿繊維からなる布を防炎処理水溶液中に浸漬させる際の防炎処理水溶液の温度は、通常、２０〜３０℃に調整される。
【００１４】
次に、上記綿繊維からなる布に防炎処理水溶液を含浸させた後、布を防炎処理水溶液から取り出し、布中に含まれる余分な水分を除去するために中間乾燥処理を施す。この中間乾燥処理の温度は、低いと、水分の除去が不十分となることがあり、又、高いと、後述する加熱処理が不均一となって、得られる防炎布の防炎性や柔軟性が不均一となることがあるので、１２０〜１４０℃が好ましく、１２５〜１３５℃がより好ましい。
【００１５】
更に、上記中間乾燥処理の時間は、短いと、水分の除去が不十分となることがあり、又、長くても、効果に差がないので、５〜２０分が好ましく、８〜１２分がより好ましい。
【００１６】
続いて、上記中間乾燥処理を施した布に加熱処理を施して、上記防炎処理水溶液中の上記式（１）で示される防炎剤及び上記式（２）で示される化合物を布に固着一体化させる。
【００１７】
この加熱処理の温度は、低いと、上記防炎処理水溶液中の上記式（１）で示される防炎剤及び上記式（２）で示される化合物を布に充分に固着一体化させることができず、得られる防炎布の防炎性や柔軟性が低下することがあり、又、高いと、得られる防炎布の柔軟性が低下することがあるので、１５０〜１８０℃が好ましく、１５５〜１６５℃がより好ましい。
【００１８】
更に、上記加熱処理の時間は、短いと、上記防炎処理水溶液中の上記式（１）で示される防炎剤及び上記式（２）で示される化合物を布に充分に固着一体化させることができず、得られる防炎布の防炎性や柔軟性が低下することがあり、又、長いと、得られる防炎布の白度が低下したり或いは色相が黄変したりすることがあるので、１〜５分が好ましい。
【００１９】
次に、上記加熱処理が施された布を水洗いして布中の余分な上記（１）で示される防炎剤、上記式（２）で示される化合物及び塩化マグネシウムを除去した後、熱風によって布を乾燥させて、防炎性、柔軟性及び吸水性に優れた防炎布を製造することができる。
【００２０】
【実施例】
（実施例１）
綿繊維１００％のタオル地（経糸：２０番手単糸、緯糸：２０番手単糸、経糸密度：４０本／インチ、緯糸密度：３６本／インチ）をのり抜き剤を用いてのり抜きした後、沸騰水中で３０分間前洗いし、更に、従来の要領で精練した。
【００２１】
一方、下記式（１）で示した防炎剤１００重量部、下記式（２）で示した化合物１８重量部及び塩化マグネシウム１．６重量部を水１４６重量部に加えて防炎処理水溶液を作製した。
【００２２】
【化５】

【００２３】
【化６】

【００２４】
そして、上記タオル地を上記防炎処理水溶液中に２５℃で３０分間浸漬してタオル地に防炎処理水溶液を充分に含浸させた後、タオル地を防炎処理水溶液から取り出し、このタオル地に１３０℃で１０分間の条件で中間乾燥処理を施して余分な水分を除去した。
【００２５】
続いて、上記タオル地に１６０℃で５分間、加熱処理を施して、上記式（１）で示した防炎剤及び上記式（２）で示した化合物をタオル地に固着一体化させた後、タオル地に付着した余分な式（１）で示した防炎剤、式（２）で示した化合物及び塩化マグネシウムを除去するためにタオル地を水洗いした上で、タオル地を熱風により完全に乾燥させて防炎布を製造した。
【００２６】
（比較例１）
式（２）で示した化合物を７重量部とし、塩化マグネシウムを０．７重量部とした以外は実施例１と同様にして防炎布を製造した。
【００２７】
上記の如くして得られた防炎布の防炎性及び柔軟性を下記に示した要領で測定した。
【００２８】
（防炎性）
水洗いを全くしていない水洗い前の防炎布と、ＪＩＳ Ｌ０２１７ １０３法に準拠した吊り干し法に従って１０回洗濯処理した防炎布とについて、防炎布の防炎性をＪＩＳ Ｓ４００１に準拠した４５°メセナミン法により測定した。
【００２９】
実施例１の防炎布について、水洗い前及び１０回の洗濯処理後の双方とも３１ｍｍであり、洗濯によって防炎性の低下はなかった。比較例１の防炎布について、水洗い前は３１ｍｍであったが、１０回の洗濯処理後は１３０ｍｍであり、水洗いすることによって防炎性が大きく低下していた。
【００３０】
（柔軟性）
防炎布の柔軟性を素手で触って柔軟性の有無を判断したところ、実施例１の防炎布は柔軟性に優れており肌触りも良かったが、比較例１の防炎布は柔軟性に欠けゴワゴワ感があり肌触りも悪かった。
【００３１】
【発明の効果】
本発明の防炎布の製造方法は、綿繊維からなる布を、上記式（１）で示した防炎剤１００重量部、上記式（２）で示した化合物１０〜３０重量部、塩化マグネシウム１〜３重量部及び水１３０〜１６０重量部を含有する防炎処理水溶液中に浸漬した後、この布を加熱処理することを特徴とするので、得られる防炎布は防炎性、柔軟性及び吸水性に優れ、洗濯による防炎性の低下は少なく、タオルや衣料品等のように、柔軟性及び吸水性が要求され且つ洗濯できることが要求される用途にも好適に用いることができる。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for producing a flameproof cloth having excellent flameproofness, flexibility and water absorption.
[0002]
[Prior art]
Conventionally, flameproof cloth with flameproof performance has been provided, and such flameproof cloth is processed into curtains, cloth blinds and other cloth products in theaters, movie theaters, hospitals, etc. used by an unspecified number of people. It is used on.
[0003]
However, the above-mentioned flameproof cloth is manufactured by fixing and integrating a flameproofing agent to the cloth, but conventionally provided flameproof cloth is generally lacking in flexibility, as described above. In addition, there is a problem that it can only be used for applications that require relatively little flexibility, such as curtains and blinds.
[0004]
[Problems to be solved by the invention]
The present invention provides a method for producing a flameproof cloth having excellent flameproof performance, flexibility and water absorption.
[0005]
[Means for solving the problems]
In the method for producing a flameproof cloth of the present invention, a cloth composed of cotton fibers is prepared by 100 parts by weight of a flameproofing agent represented by the following formula (1), 10 to 30 parts by weight of a compound represented by the following formula (2), magnesium chloride This cloth is heat-treated after being immersed in a flameproof aqueous solution containing 1 to 3 parts by weight and 130 to 160 parts by weight of water .
[0006]
[Chemical 3]

[0007]
[Formula 4]

[0008]
Synthetic resin fibers may be mixed with the cotton fibers constituting the cloth. And the form of the cloth which consists of the said cotton fiber is not specifically limited, For example, a woven fabric, a knitted fabric, a nonwoven fabric etc. are mentioned.
[0009]
In the method for producing a flameproof cloth according to the present invention, the cloth made of the cotton fiber is subjected to scouring and bleaching treatment as necessary, and then the flameproofing agent represented by the above formula (1) and the above formula (2). ) in the compound and is immersed cloth made of the cotton fibers in flame treatment in an aqueous solution obtained by dissolving a magnesium chloride in water indicated, it is impregnated with fireproof treatment aqueous solution to a cloth made of cotton fibers.
[0010]
When the content of the compound represented by the formula (2) in the flameproofing aqueous solution is small, the durability of the resulting flameproof cloth with respect to the flameproof washing is lowered and the flexibility is lowered. If the amount is too high, the water absorption decreases, so the amount is limited to 10 to 30 parts by weight with respect to 100 parts by weight of the flameproofing agent represented by the above formula (1), preferably 15 to 25 parts by weight, and 16 to 23 parts by weight. More preferred.
[0011]
In addition, if the content of magnesium chloride in the flameproofing aqueous solution is small, the flexibility of the resulting flameproof cloth is lowered, and if it is large, the resulting flameproof cloth is sticky. It is limited to 1 to 3 parts by weight with respect to 100 parts by weight of the flameproofing agent, and is preferably 1.4 to 1.8 parts by weight.
[0012]
Furthermore, if the amount of water in the flameproofing aqueous solution is small, the viscosity of the flameproofing aqueous solution becomes high, and the fabric may not be sufficiently impregnated with the flameproofing aqueous solution. The concentration of the flameproofing agent in the flameproofing aqueous solution, the compound represented by the formula (2), and the magnesium chloride may be relatively thin, and the fabric may not be impregnated with a sufficient amount. Therefore, it is limited to 130 to 160 parts by weight with respect to 100 parts by weight of the flameproofing agent represented by the above formula (1), and preferably 140 to 150 parts by weight.
[0013]
If the time of immersing the cloth made of cotton fibers in the flameproofing aqueous solution is short, the fabric may not be sufficiently impregnated with the flameproofing aqueous solution. Since there is no great difference in the amount of the aqueous solution impregnated in the cloth, it is preferably 15 to 45 minutes, more preferably 20 to 40 minutes. Moreover, the temperature of the flameproofing aqueous solution at the time of immersing the cloth which consists of the said cotton fiber in a flameproofing aqueous solution is normally adjusted to 20-30 degreeC.
[0014]
Next, after impregnating the cloth made of cotton fibers with the flameproofing aqueous solution, the cloth is taken out from the flameproofing aqueous solution and subjected to an intermediate drying process in order to remove excess moisture contained in the cloth. If the temperature of this intermediate drying treatment is low, moisture removal may be insufficient, and if it is high, the heat treatment described later becomes uneven, and the resulting flameproof cloth has flameproofness and flexibility. 120-140 ° C. is preferable, and 125-135 ° C. is more preferable.
[0015]
Furthermore, if the time for the intermediate drying treatment is short, the removal of moisture may be insufficient, and even if it is long, there is no difference in effect, so 5 to 20 minutes is preferable, and 8 to 12 minutes is preferable. More preferred.
[0016]
Subsequently, the cloth subjected to the intermediate drying treatment is subjected to heat treatment, and the flameproofing agent represented by the formula (1) and the compound represented by the formula (2) in the flameproofing aqueous solution are fixed to the fabric. Integrate.
[0017]
If the temperature of this heat treatment is low, the flameproofing agent represented by the above formula (1) and the compound represented by the above formula (2) in the above flameproofing aqueous solution can be sufficiently fixed and integrated with the cloth. However, the flameproofness and flexibility of the obtained flameproof cloth may be lowered, and if it is high, the flexibility of the obtained flameproof cloth may be lowered. ˜165 ° C. is more preferred.
[0018]
Further, when the heat treatment time is short, the flameproofing agent represented by the above formula (1) and the compound represented by the above formula (2) in the above flameproofing aqueous solution are sufficiently fixed and integrated with the cloth. In some cases, the flameproofness and flexibility of the resulting flameproof cloth may be reduced, and if the length is long, the whiteness of the resulting flameproof cloth may be reduced or the hue may be yellowed. Therefore, 1 to 5 minutes is preferable.
[0019]
Next, the fabric subjected to the heat treatment is washed with water to remove excess flameproofing agent represented by the above (1), the compound represented by the above formula (2) and magnesium chloride , and then heated by hot air. The cloth can be dried to produce a flameproof cloth excellent in flameproofness, flexibility and water absorption.
[0020]
【Example】
Example 1
Boiling after toweling 100% cotton fiber (warp: 20th single yarn, weft: 20th single yarn, warp density: 40 / inch, weft density: 36 / inch) with paste remover It was pre-washed in water for 30 minutes and further scoured in the conventional manner.
[0021]
On the other hand, 100 parts by weight of a flameproofing agent represented by the following formula (1), 18 parts by weight of a compound represented by the following formula (2) and 1.6 parts by weight of magnesium chloride were added to 146 parts by weight of water to obtain a flameproofing aqueous solution. Produced.
[0022]
[Chemical formula 5]

[0023]
[Chemical 6]

[0024]
Then, after the towel cloth is dipped in the flameproof aqueous solution at 25 ° C. for 30 minutes to sufficiently impregnate the towel cloth with the flameproof aqueous solution, the towel cloth is taken out from the flameproof aqueous solution, and the towel cloth is heated to 130 ° C. at 10 ° C. Excess moisture was removed by performing an intermediate drying treatment under conditions of minutes.
[0025]
Subsequently, the toweling material is heated at 160 ° C. for 5 minutes, and the flameproofing agent represented by the above formula (1) and the compound represented by the above formula (2) are fixedly integrated with the toweling material, and then the toweling material. In order to remove the extra flame retardant shown in Formula (1), the compound shown in Formula (2) and magnesium chloride attached to the water, the towel cloth is washed with water, and then the towel cloth is completely dried with hot air for flame prevention. A fabric was produced.
[0026]
(Comparative Example 1)
A flameproof cloth was produced in the same manner as in Example 1 except that the compound represented by the formula (2) was 7 parts by weight and the magnesium chloride was 0.7 parts by weight.
[0027]
The flameproofness and flexibility of the flameproof cloth obtained as described above were measured as described below.
[0028]
(Fireproof)
About the flameproof cloth before washing with water which has not been washed at all, and the flameproof cloth which has been washed 10 times according to the hanging drying method based on the JIS L0217 103 method, the flameproof property of the flameproof fabric is 45 based on JIS S4001. ° Measured by the mesenamin method.
[0029]
About the flameproof cloth of Example 1, it was 31 mm both before water washing and after 10 washing processes, and there was no flameproof fall by washing. About the flameproof cloth of Comparative Example 1, it was 31 mm before washing with water, but it was 130 mm after 10 washing treatments.
[0030]
(Flexibility)
When the presence or absence of flexibility was judged by touching the flexibility of the flameproof cloth with the bare hand, the flameproof cloth of Example 1 was excellent in flexibility and soft to the touch, but the flameproof cloth of Comparative Example 1 was flexible. There was a feeling of tingling and bad touch.
[0031]
【The invention's effect】
According to the method for producing a flameproof cloth of the present invention, a cloth comprising cotton fibers is prepared by adding 100 parts by weight of a flameproofing agent represented by the above formula (1), 10 to 30 parts by weight of a compound represented by the above formula (2), and magnesium chloride. Since this cloth is heat-treated after being immersed in a flameproof aqueous solution containing 1 to 3 parts by weight and 130 to 160 parts by weight of water , the resulting flameproof cloth is flameproof and flexible. In addition, it is excellent in water absorption, and there is little decrease in flame resistance due to washing, and it can be suitably used for applications that require flexibility and water absorption and are capable of washing, such as towels and clothing.

Claims (2)

The cloth made of cotton fibers is 100 parts by weight of a flameproofing agent represented by the following formula (1), 10 to 30 parts by weight of a compound represented by the following formula (2), 1 to 3 parts by weight of magnesium chloride, and 130 to 160 parts by weight of water. A method for producing a flameproof cloth, comprising: heating the cloth after being immersed in a flameproof aqueous solution containing a portion .

  The method for producing a flameproof cloth according to claim 1, wherein the heat treatment is performed at 150 to 180 ° C for 1 to 5 minutes.