JP3994464B2

JP3994464B2 - Double-sided transfer printing fabric and manufacturing method thereof

Info

Publication number: JP3994464B2
Application number: JP03801797A
Authority: JP
Inventors: 隆道家; 泰雄安芸
Original assignee: Toyobo Co Ltd
Current assignee: Toyobo Co Ltd
Priority date: 1997-02-21
Filing date: 1997-02-21
Publication date: 2007-10-17
Anticipated expiration: 2017-02-21
Also published as: JPH10237775A

Description

【０００１】
【発明の属する技術分野】
本発明は、良好な風合いを保持した両面転写捺染布帛に関するものであり、また両面に捺染された布帛を簡便に製造する方法に関するものである。
【０００２】
【従来の技術】
カーテンや暖簾類においては、表裏で夫々異なった色合いや模様を施した布帛を用いることが検討されている。
その製造方法としては例えば、先ず布帛の裏側（或いは表側）の全面に、１回目の染色液による染着を防ぐためのレジスト剤を塗布して予防措置を講じた後、この布帛を第１回目の染色液中に浸漬する。これを引き上げて１００℃以下で乾燥し、次いで上記レジスト剤を取り除き、１９０〜２２０℃に加熱して染料を定着させる。次に該染色された表側（或いは裏側）の全面に前記と同旨のレジスト剤を塗布して予防措置を講じた後、２回目の染色液中にこの布帛を浸漬する。これを引き上げて上記と同様に１００℃以下で乾燥し、次いで上記レジスト剤を取り除き、更に１９０〜２２０℃に加熱して染料を定着させる（従来法▲１▼）。
【０００３】
上記従来法▲１▼は浸染方法によって布帛を表裏で異なる色合い，模様に染色するものであるが、他に捺染方法によって染色する方法もある。該方法は、模様を印刷した転写紙を用いるものであって、先ず布帛の表側（或いは裏側）に転写紙を重ね合わせ、この転写紙上の主として分散染料からなる染料を昇華によって熱転写させ、次に布帛の裏側（或いは表側）に上記と同様に別の転写紙を重ね合わせ、この転写紙上の染料を昇華によって熱転写させるというものである（従来法▲２▼）。
【０００４】
更に浸染方法と捺染方法を組み合わせる方法として、布帛を染色液に浸漬して引き上げ、乾燥した後に、１９０〜２２０℃で３０〜６０秒間加熱して布帛の表裏両面に染料を定着させ、次に該染色された布帛の片面に昇華性染料を用いた加熱昇華転写方式で染色する方法も提案されている（従来法▲３▼：特開平5-214681）。
【０００５】
【発明が解決しようとする課題】
しかしながら上記従来法▲１▼は、レジスト剤の塗布，染色，レジスト剤の除去を夫々２回ずつ行うという方法であり、操作が煩雑で、作業にかなりの時間と労力を要してコスト高になる他、２回の熱処理が加えられるため布帛の風合いが硬くなるという問題がある。加えて上記レジスト剤の洗浄廃液の処理の問題もある。また上記従来法▲２▼も、従来法▲１▼と同様に表側と裏側の２段階染色であり、操作，コスト，布帛風合いのいずれにおいても従来法▲１▼と同様の問題がある。
【０００６】
上記従来法▲３▼に関しても、２段階の染色が必要であって操作が煩雑である他、やはり上記と同様の問題がある。尚従来法▲３▼の公開公報において、両面浸染染色（実施例によれば両面同時の地染めと理解される）した後、更に両面を加熱昇華転写方式で染色する方法も提案されているが、具体的方法の開示がない。また仮にこれを実施しようとすれば、この加熱昇華転写方式による両面の染色は、上記地染めを行った後、従来法▲２▼と同様に表面と裏面を２段階で昇華転写するものと考えられる。従って合計３段階の染色が必要となって一層操作が煩雑となり、また風合いも一層硬くなるものと考えられる。
【０００７】
そこで本発明は以上の様な問題を解決するためになされたものであり、表裏面で異なる色合いや模様が捺染されたものであって、尚且つ良好な風合いが保持された染色布帛を提供することを目的とする。また表裏面で異なった色合いや模様を施した布帛を、簡単な工程で製造し得る方法を提供することを目的とする。
【０００８】
【課題を解決するための手段】
本発明に係る布帛は、両面が転写捺染された捺染布帛であって、該布帛は難燃性ポリエステル繊維により構成され、その片面側に第１の転写紙が、他面側に第２の転写紙が用いられて、１７０〜２００℃に加熱された熱シリンダーを介して一方面側から２５〜５０秒間加熱して両面同時に転写捺染されたものであり、該布帛のＫＥＳ法による曲げ剛性が、転写捺染されていない対応する原布帛の同じくＫＥＳ法による曲げ剛性に対して、１６０％以下であることを要旨とする。
【０００９】
上記ＫＥＳ法による曲げ剛性は、「風合い評価の標準化と解析第２版」（川端季雄ら著、風合い計量と規格化研究委員会編）の第２７〜２８頁に記載の方法により測定される値である。即ち、試料の布帛を幅１cmの間隔で長さ１０cmにわたってチャックに把持し、曲率−２．５〜２．５cm^-1の範囲において変形速度０．５０cm^-1/sec. で等速度曲率の純曲げを行い、この際の曲げモーメントを測定することにより、単位長さ当たりの曲げ剛性（gf・cm²/cm）を求める。
【００１０】
本発明に係る捺染布帛は織編物或いは不織布の如何を問わないものであり、また上記の転写捺染されていない対応する原布帛とは、本発明に係る転写捺染のみを行わず、これ以外については、本発明の両面転写捺染布帛と同様の繊維または糸を用い、同様の織・編等の工程を経て製造されたものである。
【００１１】
上記従来法▲２▼，▲３▼に関して述べたように、従来の両面転写捺染布帛は風合いの硬いものであるが、本発明に係る両面転写捺染布帛は曲げ剛性が高くなく、従って風合いの良好な布帛である。
【００１２】
また本発明に係る両面転写捺染布帛の製造方法は、転写紙に付与された昇華性染料を布帛の両面に昇華転写する方法において、前記布帛を難燃性ポリエステル繊維により構成し、第１の転写紙を前記布帛の片面側に重ね合わせ、且つ第２の転写紙を前記布帛の他面側に重ね合わせて、少なくとも３層の積層構造とし、該積層構造の両面から圧し付けた状態で、１７０〜２００℃に加熱された熱シリンダーを介して一方面側から２５〜５０秒間加熱して、前記第１，２の転写紙の夫々の昇華性染料を前記布帛の夫々の面に昇華移行させ、該布帛の両面同時に転写捺染するものであることを要旨とする。
【００１３】
この様に布帛の表裏面に転写紙を重ね合わせ、一気に表裏面に捺染する様にしたから、染色工程が簡便化される。また一般に布帛の風合いは熱履歴の増大に伴って硬くなるものであるが、本発明においては染色の際に受ける加熱の総時間が結果的に短くなるから、布帛の風合いが硬くならない。
【００１４】
【発明の実施の形態及び実施例】
以下、本発明に係る両面転写捺染布帛及びその製造方法を、実施例を示して具体的に説明するが、本発明はもとよりこの実施例に限定される訳ではなく、前・後記の趣旨に適合し得る範囲で適当に変更を加えて実施することも可能であり、それらはいずれも本発明の技術的範囲に包含される。
【００１５】
図１は本発明に係る両面転写捺染布帛の製造方法を実施する捺染装置の一例を表す模式図である。
捺染前の原布帛Ｍはセンタリングロール２によって斜行のない整然とした走行状態に整えられ、テンションバー３を通過する。そしてこの原布帛Ｍの片面側に第１の転写紙Ａが、また他面側に第２の転写紙Ｂが重ね合わされ、更に上記第１の転写紙Ａの背面側からはバックペーパーＢＰが重ね合わされて４層の積層シート構造となり、更に加圧用フエルト６による支持を受けた状態でガイド５により導かれて熱シリンダー７に向かう。
【００１６】
熱シリンダー７に到達した上記４層の積層シート（第２の転写紙Ｂ−原布帛Ｍ−第１の転写紙Ａ−バックペーパーＢＰ）は、更に加圧用フエルト６によって熱シリンダー７に圧し付けられ、該熱シリンダー７による加熱を受けて第１，２の転写紙Ａ，Ｂの昇華性染料が原布帛Ｍの表裏面に夫々独立的に昇華移行する。尚バックペーパーＢＰは加圧用フエルト６への移染防止の目的で設けられたものである。
【００１７】
その後、上記４層は使用済み第１の転写紙Ａ’と使用済みバックペーパーＢＰ’の積層体，両面転写捺染布帛Ｍ’，使用済み第２の転写紙Ｂ’の３つに分かれて、夫々巻取ロール８ａ，８ｍ，８ｂに巻き取られる。加圧用フエルト６は熱シリンダー７の回転速度に合わせてエンドレスに周り、繰り返し使用される。
【００１８】
前記捺染時の加熱温度や時間は、染料の種類や布帛の素材によって適宜変更すると良いが、１７０〜２１０℃（熱シリンダー７の温度）で２０〜７０秒間（シリンダー７への接触開始から離れるまでの所要時間）行うことが好ましい。１７０℃未満では染着濃度が不十分となるからであり、より好ましくは１８０℃以上とする。一方２１０℃超では布帛の風合いが硬くなるからであり、より好ましくは２００℃以下とする。また２０秒未満では布帛への染料の昇華移行が不十分となるからであり、より好ましくは２５秒以上とする。一方７０秒超では布帛の風合いが硬くなるからであり、より好ましくは５０秒以下とする。
【００１９】
なお本発明の実施に際しては上記例示方法の様な４層構造に限らず、第１の転写紙−布帛−第２の転写紙の３層構造としても勿論良く、またこの３層の両外側にバックペーパーを設ける等して、５層以上の構造としても良い。
【００２０】
＜実施例１＞
１５０デニール／３６フィラメントの難燃性ポリエステル繊維を２本供給し、２ヒーターの仮撚機によって加工糸を得た。該加工糸を用い、２４ゲージ経編機によって３０コース／インチで目付け重量２３０g/m²の編地を製編した。該編地にプレセット（１８０℃，６０秒間）を施し、液流染色機を用いて精練を行った。次に分散染料を用いてこの布帛（編地）を反物状で染色した後、遠心脱水機によって絞り、該布帛を拡布状にし、乾燥して幅出しを行い、これをプリント下生地（原布帛）No. １とした。
【００２１】
図１に示す捺染装置を用いて、上記プリント下生地No. １の表裏両面に同時に熱転写捺染を施した。尚この際の加熱条件としては熱シリンダー７の表面温度を１８０℃とし、熱シリンダー７と上記４層の接触時間４０秒で行った。
【００２２】
＜参考例１＞
１５０デニール／４８フィラメントのレギュラーポリエステル繊維を用い、１ヒーターの仮撚機によって加工糸を得た。該加工糸を経糸に１５０本／インチ、緯糸に７２本／インチ打ち込んで、目付け重量２９０g/m²のダブルサテン生地を得た。該生地を糊抜きし、精練を行い、次に乾燥セットを施して、これをプリント下生地（原布帛）No.２とした。
【００２３】
該プリント下生地No. ２に、図１に示す捺染装置を用いて、表裏両面同時に熱転写捺染を施した。尚この際の加熱条件としては熱シリンダー７の表面温度を２００℃とし、熱シリンダー７と上記４層の接触時間２５秒で行った。
【００２４】
＜参考例２＞
上記実施例１と同様のプリント下生地No. １を用い、これに図１に示す捺染装置を用いて、表裏両面同時に熱転写捺染を施した。この際の加熱条件としては熱シリンダー７の表面温度を１８０℃とし、熱シリンダー７と上記４層の接触時間７０秒で行った。
【００２５】
＜比較例１＞
上記実施例１と同様のプリント下生地No. １を用い、先ずこの生地No. １の片面のみに、転写捺染を行った。捺染装置としては、図１に示す捺染装置のうち第１の転写紙Ａを除いたものを使用し、この際の加熱条件としては熱シリンダー７の表面温度１８０℃で、熱シリンダー７とバックペーパーＢＰ−原布帛Ｍ−第２の転写紙Ｂの３層の接触時間４０秒で行った。次いで転写捺染されていないもう一方の面に対して、同様の捺染装置を用いて、熱シリンダー７の表面温度１８０℃、熱シリンダー７とバックペーパーＢＰ−原布帛Ｍ−第２の転写紙Ｂの３層との接触時間４０秒で、転写捺染を行った。
【００２６】
＜比較例２＞
上記比較例１における転写捺染の加熱条件を、熱シリンダー７の表面温度２００℃、熱シリンダー７と上記３層の接触時間２５秒とし、他の条件を上記比較例１と同様にして、片面ずつ転写捺染を行った。
【００２７】
得られた実施例１、参考例１，２、比較例１，２の両面転写捺染布帛に関して、風合い及び染色堅牢度を評価した。尚風合いは前述のＫＥＳ法（カトーティック社製，ＫＥＳ−ＦＢ２［純曲げ試験機］を使用）による曲げ剛性によって評価し、染色堅牢度はＪＩＳＬ−０８４４（洗濯［Ａ−２法］）によって評価した。また転写捺染されていない対応する原布帛について、ＫＥＳ法による曲げ剛性を測定し、この曲げ剛性に対する上記両面転写捺染布帛の曲げ剛性（以下、比剛性と称することがある）を百分率で表した。その結果を下記表１に示す。
【００２８】
【表１】

【００２９】
上記表１から分かる様に、比較例１，２では比剛性が大きくなっており、従って出来上がった布帛の曲げ剛性が高く、風合いの硬いものであった。これに対し実施例１では比剛性が小さく、従って曲げ剛性があまり高くなく、風合いの柔らかいものであった。また両面同時に捺染した実施例１は染色堅牢度も良好で、片面ずつ捺染した比較例１，２に劣らないものであった。
【００３０】
【発明の効果】
本発明に係る両面転写捺染布帛は、表裏面で異なる色合いや模様が捺染され、且つ原布帛の風合いを良好に維持するものであった。
また本発明に係る両面転写捺染布帛の製造方法は、表裏面で異なった色合いや模様を施した布帛を、煩雑な工程を経ることなく簡単な工程で実施することができ、従って低コスト化を図ることができる。加えて得られた布帛は良好な風合いを示すものである。
【図面の簡単な説明】
【図１】本発明に係る両面転写捺染布帛の製造方法を実施する捺染装置の一例を表す模式図。
【符号の説明】
Ａ第１の転写紙
Ａ’ 使用済み第１の転写紙
Ｂ第２の転写紙
Ｂ’ 使用済み第２の転写紙
ＢＰバックペーパー
ＢＰ’ 使用済みバックペーパー
Ｍ原布帛
Ｍ’ 両面転写捺染布帛
２センタリングロール
３テンションバー
５ガイド
６加圧用フエルト
７熱シリンダー
８ａ，８ｂ，８ｍ巻取ロール[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a double-sided transfer printed fabric having a good texture, and also relates to a method for easily producing a fabric printed on both sides.
[0002]
[Prior art]
In curtains and warmths, it has been studied to use fabrics with different colors and patterns on the front and back.
As a manufacturing method thereof, for example, first, a resist agent for preventing dyeing by the first dyeing solution is applied to the entire back side (or front side) of the fabric and precautions are taken. Immerse in the dyeing solution. This is pulled up and dried at 100 ° C. or less, and then the resist agent is removed and heated to 190 to 220 ° C. to fix the dye. Next, after applying a resist agent having the same meaning as described above to the entire surface of the dyed front side (or back side) and taking preventive measures, the fabric is immersed in the second dyeing solution. This is pulled up and dried at 100 ° C. or lower in the same manner as described above, and then the resist agent is removed and further heated to 190 to 220 ° C. to fix the dye (conventional method (1)).
[0003]
The conventional method {circle around (1)} is to dye the fabric in different shades and patterns on the front and back by the dip dyeing method, but there is also a method of dyeing by the printing method. The method uses a transfer paper on which a pattern is printed. First, the transfer paper is superposed on the front side (or back side) of the fabric, and the dye mainly composed of the disperse dye is thermally transferred by sublimation on the transfer paper, and then Similar to the above, another transfer paper is superimposed on the back side (or front side) of the fabric, and the dye on the transfer paper is thermally transferred by sublimation (conventional method (2)).
[0004]
Further, as a method of combining the dyeing method and the printing method, the fabric is dipped in a dyeing solution, pulled up, dried, and then heated at 190 to 220 ° C. for 30 to 60 seconds to fix the dye on both the front and back surfaces of the fabric. There has also been proposed a method of dyeing one side of a dyed fabric by a heat sublimation transfer method using a sublimation dye (conventional method {circle around (3)}: Japanese Patent Laid-Open No. 5-214681).
[0005]
[Problems to be solved by the invention]
However, the conventional method {circle around (1)} is a method in which the resist agent is applied, dyed, and the resist agent is removed twice, and the operation is complicated, requiring a considerable amount of time and labor for the work, and increasing the cost. In addition, since the heat treatment is performed twice, there is a problem that the texture of the fabric becomes hard. In addition, there is a problem in the treatment of the resist cleaning waste liquid. The conventional method {circle around (2)} is also a two-step dyeing on the front side and the back side as in the conventional method {circle around (1)}, and has the same problems as the conventional method {circle around (1)} in terms of operation, cost, and fabric texture.
[0006]
The conventional method {circle around (3)} also has the same problems as described above, except that two-stage dyeing is necessary and the operation is complicated. In the publication of the conventional method (3), there has also been proposed a method of dyeing both surfaces by a heat sublimation transfer method after double-sided dyeing (which is understood as simultaneous dyeing of both surfaces according to the embodiment). There is no disclosure of a specific method. If this is to be done, the dyeing on both sides by this heating sublimation transfer method is considered to transfer the front and back surfaces in two stages in the same manner as in the conventional method (2) after the above-mentioned background dyeing. It is done. Therefore, it is considered that a total of three stages of dyeing are required, and the operation becomes more complicated and the texture becomes harder.
[0007]
Accordingly, the present invention has been made to solve the above-described problems, and provides a dyed fabric in which different shades and patterns are printed on the front and back surfaces, and a good texture is maintained. For the purpose. Moreover, it aims at providing the method which can manufacture the fabric which gave different shades and patterns on the front and back surfaces by a simple process.
[0008]
[Means for Solving the Problems]
The fabric according to the present invention is a printed fabric on which both sides are transfer-printed, and the fabric is composed of a flame-retardant polyester fiber, the first transfer paper on one side and the second transfer on the other side. Paper is used, and both sides are simultaneously transferred and printed by heating for 25 to 50 seconds from one side through a heat cylinder heated to 170 to 200 ° C. , and the bending stiffness of the fabric by the KES method is The gist is that the corresponding raw fabric not subjected to transfer printing is 160% or less with respect to the bending stiffness by the KES method.
[0009]
The bending stiffness by the KES method is a value measured by the method described on pages 27 to 28 of “Standardization and analysis of texture evaluation 2nd edition” (edited by Kiyo Kawabata et al., Edited by texture measurement and standardization research committee). It is. That is, the fabric samples were gripped by the chuck over the length 10cm at intervals of width 1 cm, speed variations in a range of curvature -2.5~2.5cm ^{^-1} 0.50cm ^-1 / sec. At a constant velocity curvature pure Bending is performed, and the bending moment at this time is measured to obtain the bending rigidity (gf · cm ² / cm) per unit length.
[0010]
The textile fabric according to the present invention may be a woven or knitted fabric or a nonwoven fabric, and the above-mentioned corresponding raw fabric not subjected to the transfer textile printing does not perform only the textile printing according to the present invention. These are produced by using the same fibers or yarns as those of the double-sided transfer printed fabric of the present invention, through the same processes such as weaving and knitting.
[0011]
As described with respect to the above conventional methods (2) and (3), the conventional double-sided transfer printed fabric has a hard texture, but the double-sided transfer printed fabric according to the present invention does not have a high bending rigidity and therefore has a good texture. Fabric.
[0012]
The method for producing a double-sided transfer printed fabric according to the present invention is a method in which a sublimation dye applied to transfer paper is sublimated and transferred onto both sides of the fabric. 170. In a state where paper is superimposed on one side of the fabric and the second transfer paper is superimposed on the other side of the fabric to form a laminated structure of at least three layers and pressed from both sides of the laminated structure. Heating from one side through a heating cylinder heated to ˜200 ° C. for 25 to 50 seconds to transfer the sublimable dyes of the first and second transfer papers to the respective sides of the fabric , and gist der Rukoto which both sides simultaneously transfer printing of the fabric.
[0013]
In this way, the transfer paper is superimposed on the front and back surfaces of the fabric, and printing is performed on the front and back surfaces at a stretch, so that the dyeing process is simplified. In general, the texture of the fabric becomes harder as the heat history increases. However, in the present invention, the total heating time during dyeing is consequently shortened, so that the texture of the fabric does not become harder.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the double-sided transfer printed fabric and the method for producing the same according to the present invention will be specifically described with reference to examples. However, the present invention is not limited to these examples, and conforms to the purpose described above and below. It is also possible to carry out the present invention with appropriate modifications within the possible range, and all of them are included in the technical scope of the present invention.
[0015]
FIG. 1 is a schematic view showing an example of a printing apparatus for carrying out the method for producing a double-side transfer printed fabric according to the present invention.
The raw fabric M before printing is adjusted to an orderly running state without skew by the centering roll 2 and passes through the tension bar 3. Then, the first transfer paper A is superimposed on one side of the base fabric M, the second transfer paper B is superimposed on the other side, and the back paper BP is superimposed from the back side of the first transfer paper A. Thus, a four-layer laminated sheet structure is formed, and further guided by the guide 5 toward the heat cylinder 7 while being supported by the pressure felt 6.
[0016]
The four-layer laminated sheet (second transfer paper B-raw fabric M-first transfer paper A-back paper BP) that has reached the heat cylinder 7 is further pressed against the heat cylinder 7 by the pressure felt 6. The sublimation dyes of the first and second transfer papers A and B are sublimated and transferred to the front and back surfaces of the original fabric M independently by being heated by the heat cylinder 7. The back paper BP is provided for the purpose of preventing transfer to the pressure felt 6.
[0017]
After that, the four layers are divided into three layers, a laminated body of used first transfer paper A ′ and used back paper BP ′, double-sided transfer textile fabric M ′, and used second transfer paper B ′. It is wound around winding rolls 8a, 8m, 8b. The pressurizing felt 6 rotates endlessly according to the rotational speed of the heat cylinder 7 and is repeatedly used.
[0018]
The heating temperature and time at the time of printing may be appropriately changed according to the type of dye and the material of the fabric, but at 170 to 210 ° C. (temperature of the heat cylinder 7) for 20 to 70 seconds (until the start of contact with the cylinder 7) (Required time) is preferably performed. This is because the dyeing concentration is insufficient when the temperature is lower than 170 ° C., and more preferably 180 ° C. or higher. On the other hand, if it exceeds 210 ° C., the texture of the fabric becomes hard, and more preferably 200 ° C. or less. Moreover, if it is less than 20 seconds, the dye sublimation transfer to the fabric becomes insufficient, and more preferably 25 seconds or more. On the other hand, if it exceeds 70 seconds, the texture of the fabric becomes hard, and more preferably 50 seconds or less.
[0019]
In implementing the present invention, the three-layer structure of the first transfer paper, the fabric, and the second transfer paper is of course not limited to the four-layer structure as in the above-described exemplary method. It is good also as a structure of five layers or more by providing a back paper.
[0020]
<Example 1>
Two 150-denier / 36-filament flame-retardant polyester fibers were supplied, and a processed yarn was obtained by a false-twisting machine with two heaters. Using the processed yarn, a knitted fabric having a basis weight of 230 g / m ² was knitted at 30 courses / inch by a 24 gauge warp knitting machine. The knitted fabric was pre-set (180 ° C., 60 seconds) and scoured using a liquid dyeing machine. Next, this fabric (knitted fabric) is dyed with a disperse dye using a disperse dye, and then squeezed by a centrifugal dehydrator, the fabric is expanded, dried and tentered, and this is used as an underprint fabric (raw fabric). ) No. 1
[0021]
Using the printing apparatus shown in FIG. 1, thermal transfer printing was performed simultaneously on both the front and back surfaces of the printed fabric No. 1. In this case, the heating conditions were such that the surface temperature of the heat cylinder 7 was 180 ° C., and the contact time between the heat cylinder 7 and the above four layers was 40 seconds.
[0022]
<Reference Example 1 >
Using 150 denier / 48 filament regular polyester fiber, a processed yarn was obtained with a false heater using one heater. The processed yarn was driven into a warp at 150 yarns / inch and a weft at 72 yarns / inch to obtain a double satin fabric having a basis weight of 290 g / m ² . The dough was desized, scoured, and then subjected to a drying set, which was designated as a printed fabric (raw fabric) No. 2.
[0023]
The fabric under print No. 2 was subjected to thermal transfer printing on both the front and back sides simultaneously using the printing apparatus shown in FIG. In this case, the heating conditions were such that the surface temperature of the heat cylinder 7 was 200 ° C. and the contact time between the heat cylinder 7 and the above four layers was 25 seconds.
[0024]
< Reference Example 2 >
The same under-print fabric No. 1 as in Example 1 was used, and thermal transfer printing was performed simultaneously on the front and back sides using the printing apparatus shown in FIG. As heating conditions at this time, the surface temperature of the heat cylinder 7 was set to 180 ° C., and the contact time between the heat cylinder 7 and the four layers was 70 seconds.
[0025]
<Comparative Example 1>
Using the same printed fabric No. 1 as in Example 1 above, first, transfer printing was performed only on one side of the fabric No. 1. As the textile printing apparatus, the textile printing apparatus shown in FIG. 1 excluding the first transfer paper A is used. The heating conditions at this time are the surface temperature of the thermal cylinder 7 180 ° C., the thermal cylinder 7 and the back paper. The contact time of 3 layers of BP-raw fabric M-second transfer paper B was 40 seconds. Next, using the same printing apparatus on the other surface that is not transferred and printed, the surface temperature of the heat cylinder 7 is 180 ° C., the heat cylinder 7 and the back paper BP−raw fabric M−the second transfer paper B. Transfer printing was performed at a contact time of 40 seconds with the three layers.
[0026]
<Comparative example 2>
The heating conditions for transfer printing in Comparative Example 1 were as follows: the surface temperature of the heat cylinder 7 was 200 ° C., the contact time between the heat cylinder 7 and the three layers was 25 seconds, and the other conditions were the same as in Comparative Example 1 one by one. Transfer printing was performed.
[0027]
The texture and dyeing fastness of the double-sided transfer printed fabrics of Example 1 , Reference Examples 1 and 2 and Comparative Examples 1 and 2 were evaluated. The texture is evaluated by the bending stiffness by the above-mentioned KES method (using KES-FB2 [pure bending tester] manufactured by Katotic Co., Ltd.), and the dyeing fastness is evaluated by JISL-0844 (washing [A-2 method]). did. Further, the bending stiffness by the KES method was measured for the corresponding original fabric that was not transferred and printed, and the bending stiffness of the double-sided transfer printed fabric with respect to this bending stiffness (hereinafter sometimes referred to as specific stiffness) was expressed as a percentage. The results are shown in Table 1 below.
[0028]
[Table 1]

[0029]
As can be seen from Table 1 above, in Comparative Examples 1 and 2, the specific rigidity was high, and thus the finished fabric had high bending rigidity and a hard texture. In contrast in Example 1 has a small specific rigidity, thus bending rigidity is not so high, were those tender texture. The example was printed double-sided simultaneously 1 color fastness was good and was not inferior to Comparative Examples 1 and 2 was printed by one-sided.
[0030]
【The invention's effect】
The double-sided transfer printed fabric according to the present invention has different colors and patterns printed on the front and back surfaces, and maintains the texture of the original fabric satisfactorily.
In addition, the method for producing a double-sided transfer printed fabric according to the present invention allows a fabric having different shades and patterns on the front and back surfaces to be implemented in a simple process without going through a complicated process, thus reducing the cost. Can be planned. In addition, the resulting fabric exhibits a good texture.
[Brief description of the drawings]
FIG. 1 is a schematic view showing an example of a printing apparatus for carrying out a method for producing a double-sided transfer printed fabric according to the present invention.
[Explanation of symbols]
A First transfer paper A ′ Used first transfer paper B Second transfer paper B ′ Used second transfer paper BP Back paper BP ′ Used back paper M Original fabric M ′ Double-sided transfer printing fabric 2 Centering Roll 3 Tension bar 5 Guide 6 Pressure felt 7 Heat cylinder 8a, 8b, 8m Winding roll

Claims

A printed fabric that is transfer-printed on both sides,
The fabric is made of flame-retardant polyester fiber, using the first transfer paper on one side and the second transfer paper on the other side, and one side through a heat cylinder heated to 170-200 ° C. From 25 to 50 seconds after heating and printing on both sides simultaneously ,
A double-sided transfer printed fabric, wherein the bending stiffness of the fabric by the KES method is 160% or less with respect to the bending stiffness of the corresponding original fabric that has not been transferred and printed by the KES method.

In the method of sublimating and transferring the sublimable dye applied to the transfer paper onto both sides of the fabric,
The fabric is composed of flame retardant polyester fiber,
The first transfer paper is overlaid on one side of the fabric, and the second transfer paper is overlaid on the other side of the fabric to form a laminated structure of at least three layers,
While being pressed from both sides of the laminated structure, the sublimation property of each of the first and second transfer papers is heated for 25 to 50 seconds from one side through a heat cylinder heated to 170 to 200 ° C. the dye is sublimated migrated to the surface of each of the fabric, the method for producing the double-sided transfer printing cloth, characterized in der Rukoto which both sides simultaneously transfer printing of the fabrics.

The method for producing a double-sided transfer printed fabric according to claim 2, wherein the temperature of the hot cylinder is 180 to 200 ° C.