WO2018193542A1 - Gravure coater - Google Patents

Gravure coater Download PDF

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Publication number
WO2018193542A1
WO2018193542A1 PCT/JP2017/015695 JP2017015695W WO2018193542A1 WO 2018193542 A1 WO2018193542 A1 WO 2018193542A1 JP 2017015695 W JP2017015695 W JP 2017015695W WO 2018193542 A1 WO2018193542 A1 WO 2018193542A1
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WO
WIPO (PCT)
Prior art keywords
treatment agent
roll
printing roll
gravure coater
knitted fabric
Prior art date
Application number
PCT/JP2017/015695
Other languages
French (fr)
Japanese (ja)
Inventor
後藤　真臣
吉徳 横山
Original Assignee
カナロア・トレード株式会社
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Publication date
Application filed by カナロア・トレード株式会社 filed Critical カナロア・トレード株式会社
Priority to PCT/JP2017/015695 priority Critical patent/WO2018193542A1/en
Publication of WO2018193542A1 publication Critical patent/WO2018193542A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/20—Ink-removing or collecting devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F9/00—Rotary intaglio printing presses
    • B41F9/06—Details
    • B41F9/08—Wiping mechanisms
    • B41F9/10—Doctors, scrapers, or like devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/10—Intaglio printing ; Gravure printing
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P7/00—Dyeing or printing processes combined with mechanical treatment

Definitions

  • the present invention relates to a gravure coater suitable for applying a fiber treatment agent having a viscosity of 2000 cps or more to the surface of a woven or knitted fabric.
  • the treatment agent is generally placed in a cell (small concave recess) provided on the outer peripheral surface of the textile roll by immersing the textile roll in an ink pan containing a treatment agent (treatment liquid). Using a doctor blade that is in contact with the outer peripheral surface of the rotating printing roll, scrape off the excess processing agent and transfer the processing agent to the surface of the printed material (woven or knitted fabric) that passes between the printing roll and the pressure roller.
  • the viscosity of a typical treatment agent is less than 2,000 cps at 25 ° C.
  • the treating agent when a treating agent is applied to the surface of a thin woven or knitted fabric having a basis weight of, for example, about 130 g / m 2 by using a general gravure coater using such a treating agent, the treating agent constitutes the woven or knitted fabric. There was a problem of passing through the gap between the fibers and passing through to the opposite surface.
  • a water-repellent layer is provided only on the one-sided convex portion of the surface of the fiber fabric. What has been formed is disclosed.
  • the water repellent contained in the treatment agent passes through the fabric and penetrates to the opposite surface. There was a problem that the water absorption was hindered and the wearing feeling was worsened.
  • the viscosity of the treatment agent In order to prevent such treatment agent from passing through, it is conceivable to increase the viscosity of the treatment agent. For example, it has a viscosity of 2,000 to 100,000 cps, particularly a viscosity of more than 6,000 cps at 25 ° C. If the processing agent is used for printing, the inside of the cell may not be completely filled with the treatment agent, resulting in poor transfer to the woven or knitted fabric, resulting in a decrease in product quality, and high speed. There is a problem that productivity is not good due to the difficulty in processing.
  • the present invention solves the above-mentioned problems in the prior art, and can transfer a fiber treatment agent having a viscosity of 2,000 to 100,000 cps at 25 ° C. to one surface of a woven or knitted fabric. It is an object to provide a gravure coater having a structure.
  • the gravure coater of the present invention capable of solving the above-mentioned problems is suitable for applying a treating agent having a viscosity at 25 ° C. in the range of 2,000 to 100,000 cps on the surface of a woven or knitted fabric.
  • Gravure coater A printing roll (engraving roll) in which a plurality of cells are arranged on the outer peripheral surface; A pressure roller disposed at a position for pressure bonding with the textile roll; As a processing agent scraping device for scraping off the excess processing agent adhering to the textile roll, comprising either a doctor blade or a doctor roll, The printing roll and the processing agent scraping device are in contact with each other at an acute angle with the upper portion opened, and the processing agent reservoir is stored by the contact between the printing roll and the processing agent scraping device. Is formed. All the viscosities described in the present specification indicate viscosities measured using a rotary viscometer as a viscosity measuring device.
  • the present invention is provided with an auxiliary doctor blade that comes into contact with the outer peripheral surface of the printing roll after the excess processing agent is scraped off by the processing agent scraping device. It is characterized by this.
  • the present invention is also characterized in that the cell volume of the printing roll is 20 to 500 g / m 2 .
  • the present invention when a treating agent having a viscosity at 25 ° C. in the range of 2,000 to 100,000 cps is applied to the surface of the woven or knitted fabric, the inside of each cell formed on the outer peripheral surface of the printing roll Since the treatment agent can be reliably filled, the transferability to the woven or knitted fabric is excellent, and the quality of the obtained product is improved.
  • a treatment agent scraping device 4 (in this case, a doctor blade 4) is provided so as to come into contact with the roll 1, and excess treatment agent 6 is scraped off by the doctor blade 4 by the rotation of the printing roll 1, and the cell 2, a predetermined amount of the processing agent 6 enters, and the processing agent 6 is transferred to the woven or knitted fabric 9 by pressure bonding with the pressure roller 3.
  • FIG. 1 shows a state in which the treatment agent 6 in the cell 2 is transferred to the woven or knitted fabric 9.
  • the woven or knitted fabric 9 is fed in the direction indicated by the arrow, and the printing roll 1 rotates in the clockwise direction.
  • the pressure roller 3 rotates counterclockwise.
  • the printing roll 1 and the doctor blade 4 are brought into contact with each other so as to form an acute angle with the upper part opened, and the processing agent reservoir is located at a position where the printing roll 1 and the doctor blade 4 are in contact with each other. 5 is formed (see FIG. 1).
  • “the upper part is in contact with an open acute angle” means that the upper surface of the doctor blade 4 is inclined upward from the horizontal direction so that the treatment agent 6 can be stored. It means that at the contact position of the doctor blade 4, the tangential plane contacting the surface (curved surface) of the printing roll 1 and the upper surface of the doctor blade 4 are in contact with each other at an angle of less than 90 °.
  • a fiber treatment agent having a viscosity in the range of 2,000 to 100,000 cps at 25 ° C. is stored as the treatment agent 6.
  • various fiber treatment agents known so far can be used, and water repellents, water absorption agents, antistatic agents, etc., which are known as post-treatment agents for woven and knitted fabrics, are used. Any of the treating agents can be used.
  • various commercially available processing agents including fluorine-based water repellent, silicon-based water repellent, urethane-based water repellent, etc. can be used, and a thickener is added.
  • the viscosity may be adjusted so as to be within the above viscosity range.
  • the supply of the processing agent 6 to the processing agent reservoir 5 may be performed manually or automatically controlled mechanically.
  • Reference numeral 7 in FIG. 1 is an auxiliary doctor blade provided to scrape again the surface of the printing roll 1 scraped by the doctor blade 4, and is provided as necessary.
  • An ink pan 8 is provided below the textile roll 1.
  • a commercially available roll can be used as the printing roll 1 in the gravure coater of the present invention, and a steel roll is generally used, but is not limited thereto.
  • the volume of the cell 2 (cell volume) existing on the outer peripheral surface of the printing roll 1 is 20 to 500 g / m 2.
  • the cross-sectional shape of the cell 2 in the present invention is not particularly limited, and may be a V-shape, a concave shape, a concave shape with an upward spread, a U-shape, and the like, and the cell 2 is formed on the outer peripheral surface of the printing roll 1. It may be provided in a pattern.
  • the doctor blade 4 and the auxiliary doctor blade 7 in the gravure coater of the present invention may be made of a material softer than the material of the printing roll 1, and may be made of plastic (for example, made of fluororesin) or rubber. Alternatively, it may be made of metal.
  • the gravure coater of the present invention having the structure shown in FIG. 1 is suitable for applying a fiber treatment agent having a viscosity at 25 ° C. of 2,000 to 100,000 cps, particularly 6,000 to 30,000 cps.
  • the woven or knitted fabric 9 as the printing material may be a natural fiber such as cotton or linen, a synthetic fiber such as polyester or nylon, or a woven fabric or a knitted fabric.
  • the gravure coater of the present invention having the above-described structure is obtained by applying a treatment agent having the above viscosity containing a water repellent to one surface of a thin woven or knitted fabric having a basis weight of about 130 g / m 2 . It is suitable for producing a fabric having excellent water absorption and quick drying properties. When producing a woven or knitted fabric having such characteristics, it is arranged on the outer peripheral surface of the printing roll 1. The surface state in which the treatment agent 6 in the cell 2 is attached only to the surface portion of the convex portion on one surface of the woven or knitted fabric 9, and the water repellent is not attached to the concave portion (the space between the fibers) of the fabric surface.
  • the gravure coater of the present invention is not only suitable for application of a paste-like treatment agent to a thin woven or knitted fabric having a basis weight of 130 g / m 2 or less, but also to a thick fabric having a basis weight of 200 g / m 2 or more. It can also be applied to the coating.
  • a doctor roll 4 that rotates counterclockwise is provided instead of the doctor blade 4 of FIG. 1, and by this doctor roll 4, the printing roll 1.
  • a predetermined amount of processing agent is filled in the cells 2 formed on the outer peripheral surface.
  • the outer peripheral surface of the printing roll 1 and the outer peripheral surface of the doctor roll 4 are in contact with each other so as to form an acute angle with the upper part opened.
  • a treatment agent reservoir 5 in which the treatment agent 6 having viscosity is stored is formed.
  • the doctor roll 4 in FIG. 2 is generally made of metal. As shown in FIG.
  • the gravure coater of the present invention having a structure in which the treatment agent 6 is filled inside the cell 2 by the doctor roll 4 has the above-mentioned viscosity on one surface of the woven or knitted fabric 9.
  • the gravure coater of the third embodiment shown in FIG. 3 is different from the gravure coater of FIGS. 1 and 2 in that the printing roll 1 is disposed above the pressure roller 3 and is stored in the treatment agent reservoir 5.
  • the treatment agent 6 is filled in the cell 2 formed on the outer peripheral surface of the textile roll 1 by rotation and immediately after being scraped off by the doctor blade 4, and transferred to the woven or knitted fabric 9. Since the gravure coater having the structure shown in FIG. 3 can easily remove the printing roll 1, the workability is good.
  • the printing roll is a commercially available printing roll (steel gravure roll) with a cell volume of 40 g / m 2
  • the pressure roller is a commercially available rubber roller
  • both the doctor blade and auxiliary doctor blade as a treatment agent scraping device are commercially available.
  • a gravure coater of the present invention having the structure shown in FIG.
  • a cotton knitted fabric having a basis weight of 200 g / m 2 is prepared as a base material for water-absorbing / quick-drying knitted fabric, and a commercially available water emulsion type fluorine-based water repellent having a viscosity at 25 ° C.
  • the preparation was prepared.
  • a water-absorbing and quick-drying knitted fabric could be produced.
  • the transferability of the treatment agent to the substrate was good, and the treatment agent did not break through. It was confirmed that the knitted fabric thus obtained has excellent water absorption and has a quick drying property that does not feel sticky when sweating.
  • the gravure coater of the present invention having the above-described structure is filled with the treatment agent into the cell formed on the outer peripheral surface of the printing roll when a high-viscosity treatment agent is applied to one surface of the woven or knitted fabric. Since the treatment agent can be reliably transferred to the woven or knitted fabric without causing defects, it is particularly useful for the production of a water-absorbing and quick-drying woven or knitted fabric.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

Provided is a gravure coater suited to applying, to the surface of a woven or knitted fabric, a treatment agent having a viscosity at 25°C in a range of 2,000 to 100,000 cps. The present invention comprises a printing roll 1 having a plurality of cells 2 formed in the outer circumferential surface thereof, a crimping roller 3 that is disposed in a position where the printing roll 1 is crimped, and either a doctor blade or a doctor roll as a treatment agent scraping device 4 for scraping away excess treatment agent attached to the printing roll 1. The printing roll 1 and the treatment agent scraping device 4 come into contact at an acute upwardly opening angle, and as a result of the contact of the printing roll 1 and the treatment agent scraping device 4 ,a treatment agent retention part 5 in which a treatment agent 6 having the above-mentioned viscosity is retained is formed.

Description

グラビアコーターGravure coater
　本発明は、織編物の表面に、２０００ｃｐｓ以上の粘度を有した繊維処理剤を塗布するのに適したグラビアコーターに関する。 The present invention relates to a gravure coater suitable for applying a fiber treatment agent having a viscosity of 2000 cps or more to the surface of a woven or knitted fabric.
　捺染加工においては、一般に、処理剤（処理液）の入ったインキパンの中に捺染ロールを浸漬させる等して、捺染ロールの外周面に設けられたセル（小さな凹型の窪み）の中に処理剤を充填し、回転する捺染ロールの外周面に接触させたドクターブレードにより、余分な処理剤を掻き取り、当該捺染ロールと圧着ローラの間を通る被印刷物（織編物）の表面に処理剤を転移させており、一般的な処理剤の粘度は２５℃において２，０００ｃｐｓ未満である。
　しかし、このような処理剤を用いて一般的なグラビアコーターにより、例えば目付１３０ｇ／ｍ２程度の薄地の織編物の表面に処理剤を塗布する場合、処理剤が、織編物を構成している繊維間の空隙を通過して反対側の面まで裏抜けするという問題があった。 In textile printing, the treatment agent is generally placed in a cell (small concave recess) provided on the outer peripheral surface of the textile roll by immersing the textile roll in an ink pan containing a treatment agent (treatment liquid). Using a doctor blade that is in contact with the outer peripheral surface of the rotating printing roll, scrape off the excess processing agent and transfer the processing agent to the surface of the printed material (woven or knitted fabric) that passes between the printing roll and the pressure roller. The viscosity of a typical treatment agent is less than 2,000 cps at 25 ° C.
However, when a treating agent is applied to the surface of a thin woven or knitted fabric having a basis weight of, for example, about 130 g / m 2 by using a general gravure coater using such a treating agent, the treating agent constitutes the woven or knitted fabric. There was a problem of passing through the gap between the fibers and passing through to the opposite surface.
　又、これまで、吸水した水分が逆戻りしにくく、発汗によりべとつきを感じさせない布帛として、例えば下記の特許文献１には、繊維布帛の表面に存在する凹凸の片面の凸部にのみ撥水層を形成したものが開示されている。
　しかしながら、撥水剤を含有する上記粘度の処理剤を用いて、従来のグラビアコーターにより、片面が撥水性を有し、反対側の面が吸水性を有する織編物を製造することは困難であり、例えば、布帛の目付が１３０ｇ／ｍ２以下の薄地の布帛に対して捺染加工を行った場合には、処理剤に含まれる撥水剤が布帛を通過して反対側の面まで裏抜けし、吸水性が阻害されて着用感が悪くなるという問題点があった。 Further, as a fabric that has been difficult to reverse the moisture absorbed so far and does not feel sticky due to perspiration, for example, in Patent Document 1 below, a water-repellent layer is provided only on the one-sided convex portion of the surface of the fiber fabric. What has been formed is disclosed.
However, it is difficult to produce a woven or knitted fabric having water repellency on one side and water absorption on the other side using a conventional gravure coater using a treatment agent having the above viscosity containing a water repellent. For example, when printing is performed on a thin fabric having a fabric weight of 130 g / m 2 or less, the water repellent contained in the treatment agent passes through the fabric and penetrates to the opposite surface. There was a problem that the water absorption was hindered and the wearing feeling was worsened.
　このような処理剤の裏抜けを防止するには、処理剤の粘度を高くすることが考えられるが、例えば２５℃において２，０００～１００，０００ｃｐｓの粘度、特に６，０００ｃｐｓを超える粘度を有した処理剤を使用して捺染加工を行った場合、セルの内部に完全に処理剤が充填されず、織編物への転移不良が生じて製品の品質が低下することがあり、又、高速での加工が困難であるために生産性が良くないという問題点があった。 In order to prevent such treatment agent from passing through, it is conceivable to increase the viscosity of the treatment agent. For example, it has a viscosity of 2,000 to 100,000 cps, particularly a viscosity of more than 6,000 cps at 25 ° C. If the processing agent is used for printing, the inside of the cell may not be completely filled with the treatment agent, resulting in poor transfer to the woven or knitted fabric, resulting in a decrease in product quality, and high speed. There is a problem that productivity is not good due to the difficulty in processing.
特開２００７－１９１８１２号公報JP 2007-191812 A
　本発明は、上記の従来技術における問題点を解決するものであり、織編物の一方の表面に、２５℃における粘度が２，０００～１００，０００ｃｐｓである繊維処理剤を転移させることが可能な構造を有したグラビアコーターを提供することを課題とする。 The present invention solves the above-mentioned problems in the prior art, and can transfer a fiber treatment agent having a viscosity of 2,000 to 100,000 cps at 25 ° C. to one surface of a woven or knitted fabric. It is an object to provide a gravure coater having a structure.
　上記課題を解決可能な本発明のグラビアコーターは、織編物の表面に、２５℃における粘度が２，０００～１００，０００ｃｐｓの範囲にある処理剤を塗布するのに適したものであって、当該グラビアコーターは、
　外周面に複数のセルが配列された捺染ロール（彫刻ロール）と、
　前記捺染ロールと圧着する位置に配置された圧着ローラと、
　前記捺染ロールに付着した余分な前記処理剤を掻き取るための処理剤掻き取り装置としての、ドクターブレード又はドクターロールのいずれか
を具備し、
　前記捺染ロールと前記処理剤掻き取り装置が、上方が開いた鋭角をなして接触しており、当該捺染ロールと処理剤掻き取り装置との接触によって、前記処理剤が貯留される処理剤溜め部が形成されていることを特徴とする。
　本明細書において記載されている粘度はいずれも、粘度測定装置として回転式粘度計を用いて測定された粘度を示している。 The gravure coater of the present invention capable of solving the above-mentioned problems is suitable for applying a treating agent having a viscosity at 25 ° C. in the range of 2,000 to 100,000 cps on the surface of a woven or knitted fabric. Gravure coater
A printing roll (engraving roll) in which a plurality of cells are arranged on the outer peripheral surface;
A pressure roller disposed at a position for pressure bonding with the textile roll;
As a processing agent scraping device for scraping off the excess processing agent adhering to the textile roll, comprising either a doctor blade or a doctor roll,
The printing roll and the processing agent scraping device are in contact with each other at an acute angle with the upper portion opened, and the processing agent reservoir is stored by the contact between the printing roll and the processing agent scraping device. Is formed.
All the viscosities described in the present specification indicate viscosities measured using a rotary viscometer as a viscosity measuring device.
　又、本発明は、上記の特徴を有したグラビアコーターにおいて、前記処理剤掻き取り装置により余分な前記処理剤を掻き取った後の捺染ロールの外周面と接触する補助ドクターブレードが設けられていることを特徴とするものである。 In the gravure coater having the above-mentioned features, the present invention is provided with an auxiliary doctor blade that comes into contact with the outer peripheral surface of the printing roll after the excess processing agent is scraped off by the processing agent scraping device. It is characterized by this.
　又、本発明は、上記の特徴を有したグラビアコーターにおいて、前記捺染ロールのセル容積が２０～５００ｇ／ｍ２であることを特徴とするものでもある。 In the gravure coater having the above-mentioned characteristics, the present invention is also characterized in that the cell volume of the printing roll is 20 to 500 g / m 2 .
　本発明によれば、織編物の表面に、２５℃における粘度が２，０００～１００，０００ｃｐｓの範囲にある処理剤を塗布する際に、捺染ロールの外周面に形成された各セルの内部に処理剤を確実に充填することができるので、織編物への転移性が優れ、得られる製品の品質が向上する。 According to the present invention, when a treating agent having a viscosity at 25 ° C. in the range of 2,000 to 100,000 cps is applied to the surface of the woven or knitted fabric, the inside of each cell formed on the outer peripheral surface of the printing roll Since the treatment agent can be reliably filled, the transferability to the woven or knitted fabric is excellent, and the quality of the obtained product is improved.
本発明の第１の実施形態におけるグラビアコーター（処理剤掻き取り装置がドクターブレード）の要部を示す側面図である。It is a side view which shows the principal part of the gravure coater (a processing agent scraping apparatus is a doctor blade) in the 1st Embodiment of this invention. 本発明の第２の実施形態におけるグラビアコーター（処理剤掻き取り装置がドクターロール）の要部を示す側面図である。It is a side view which shows the principal part of the gravure coater (a processing agent scraping apparatus is a doctor roll) in the 2nd Embodiment of this invention. 本発明の第３の実施形態におけるグラビアコーター（補助ドクターブレード無し）の要部を示す側面図である。It is a side view which shows the principal part of the gravure coater (without an auxiliary doctor blade) in the 3rd Embodiment of this invention.
　以下、図面を用いて、本発明のグラビアコーターについて説明するが、本発明は、図面に例示した構成のものに限定されない。
〔本発明の実施形態１〕
　図１に示される第１の実施形態のグラビアコーターにおいては、織編物９を挟むようにして、外周面に複数のセル２が配列された捺染ロール１と、圧着ローラ３が配置されており、この捺染ロール１と接触するようにして処理剤掻き取り装置４（この場合、ドクターブレード４）が設けられており、捺染ロール１の回転によって、余分な処理剤６がドクターブレード４によって掻き取られ、セル２の内部に所定量の処理剤６が入り、圧着ローラ３との圧着によって織編物９に処理剤６が転移される。
　図１には、セル２内の処理剤６が織編物９に転移する様子が示されており、織編物９は矢印で示された方向に送られ、捺染ロール１は時計まわりの方向に回転し、圧着ローラ３は反時計まわりに回転する。 Hereinafter, although the gravure coater of this invention is demonstrated using drawing, this invention is not limited to the thing of the structure illustrated in drawing.
[Embodiment 1 of the present invention]
In the gravure coater of the first embodiment shown in FIG. 1, a printing roll 1 in which a plurality of cells 2 are arranged on an outer peripheral surface and a pressure roller 3 are arranged so as to sandwich a woven or knitted fabric 9, and this printing is performed. A treatment agent scraping device 4 (in this case, a doctor blade 4) is provided so as to come into contact with the roll 1, and excess treatment agent 6 is scraped off by the doctor blade 4 by the rotation of the printing roll 1, and the cell 2, a predetermined amount of the processing agent 6 enters, and the processing agent 6 is transferred to the woven or knitted fabric 9 by pressure bonding with the pressure roller 3.
FIG. 1 shows a state in which the treatment agent 6 in the cell 2 is transferred to the woven or knitted fabric 9. The woven or knitted fabric 9 is fed in the direction indicated by the arrow, and the printing roll 1 rotates in the clockwise direction. The pressure roller 3 rotates counterclockwise.
　そして、本発明のグラビアコーターでは、捺染ロール１とドクターブレード４とが、上方が開いた鋭角を形成するようにして接触し、当該捺染ロール１とドクターブレード４が接触する位置に処理剤溜め部５が形成されている（図１参照）。この際、「上方が開いた鋭角を形成するようにして接触し、」とは、処理剤６が貯留できるように、ドクターブレード４の上面が水平方向よりも上方に傾斜し、捺染ロール１とドクターブレード４の接触位置において、捺染ロール１の表面（曲面）に接する接平面と、ドクターブレード４の上面が９０°未満の角度をなして接触していることを意味する。
　本発明のグラビアコーターにおける処理剤溜め部５には、処理剤６として、２５℃における粘度が２，０００～１００，０００ｃｐｓの範囲にある繊維処理剤が貯留される。このような処理剤６としては、これまでに知られている各種の繊維処理剤が使用でき、織編物の後処理加工剤として知られている、撥水剤や吸水剤や帯電防止剤などを含む処理剤がいずれも使用できる。例えば、織編物の片面にのみ撥水性を付与するには、フッ素系撥水剤やシリコン系撥水剤やウレタン系撥水剤等を含む市販の処理剤が種々利用でき、増粘剤を添加して上記の粘度範囲となるように粘度調整を行ってもよい。
　尚、本発明では、処理剤溜め部５への処理剤６の供給は、手動で行われても、機械的に自動制御されてもよい。
　図１中の符号７は、ドクターブレード４によって掻き取った捺染ロール１の表面を再度掻き取るために設けられた補助ドクターブレードであり、必要に応じて設けられる。又、捺染ロール１の下方にはインキパン８が設けられている。 In the gravure coater of the present invention, the printing roll 1 and the doctor blade 4 are brought into contact with each other so as to form an acute angle with the upper part opened, and the processing agent reservoir is located at a position where the printing roll 1 and the doctor blade 4 are in contact with each other. 5 is formed (see FIG. 1). At this time, “the upper part is in contact with an open acute angle” means that the upper surface of the doctor blade 4 is inclined upward from the horizontal direction so that the treatment agent 6 can be stored. It means that at the contact position of the doctor blade 4, the tangential plane contacting the surface (curved surface) of the printing roll 1 and the upper surface of the doctor blade 4 are in contact with each other at an angle of less than 90 °.
In the treatment agent reservoir 5 in the gravure coater of the present invention, a fiber treatment agent having a viscosity in the range of 2,000 to 100,000 cps at 25 ° C. is stored as the treatment agent 6. As the treatment agent 6, various fiber treatment agents known so far can be used, and water repellents, water absorption agents, antistatic agents, etc., which are known as post-treatment agents for woven and knitted fabrics, are used. Any of the treating agents can be used. For example, in order to provide water repellency only to one side of a woven or knitted fabric, various commercially available processing agents including fluorine-based water repellent, silicon-based water repellent, urethane-based water repellent, etc. can be used, and a thickener is added. Then, the viscosity may be adjusted so as to be within the above viscosity range.
In the present invention, the supply of the processing agent 6 to the processing agent reservoir 5 may be performed manually or automatically controlled mechanically.
Reference numeral 7 in FIG. 1 is an auxiliary doctor blade provided to scrape again the surface of the printing roll 1 scraped by the doctor blade 4, and is provided as necessary. An ink pan 8 is provided below the textile roll 1.
　本発明のグラビアコーターにおける捺染ロール１としては市販のものが利用でき、スチール製のものが一般的であるが、これに限定されるものではない。本発明では、上記の粘度を有するペースト状の処理剤６の良好な転移性を確保するために、捺染ロール１の外周面に存在するセル２の容積（セル容積）は２０～５００ｇ／ｍ２であることが好ましい。
　本発明における上記セル２の断面形状は特に限定されるものではなく、Ｖ字型、凹型、上方が広がった凹型、Ｕ字型等であってよく、セル２は、捺染ロール１の外周面に模様状に設けられてもよい。
　又、印刷時において上記の捺染ロール１と圧着する圧着ローラ３としては、ゴム製のロールが一般的であるが、金属製であってもよい。
　本発明のグラビアコーターにおけるドクターブレード４及び補助ドクターブレード７は、捺染ロール１の材質よりも柔らかい材質から成るものであれば良く、プラスチック製（例えばフッ素樹脂製）であっても、ゴム製であっても、金属製であってもよい。 A commercially available roll can be used as the printing roll 1 in the gravure coater of the present invention, and a steel roll is generally used, but is not limited thereto. In the present invention, in order to ensure good transferability of the paste-like treatment agent 6 having the above viscosity, the volume of the cell 2 (cell volume) existing on the outer peripheral surface of the printing roll 1 is 20 to 500 g / m 2. It is preferable that
The cross-sectional shape of the cell 2 in the present invention is not particularly limited, and may be a V-shape, a concave shape, a concave shape with an upward spread, a U-shape, and the like, and the cell 2 is formed on the outer peripheral surface of the printing roll 1. It may be provided in a pattern.
Further, as the pressure roller 3 for pressure bonding with the textile roll 1 during printing, a rubber roll is generally used, but a metal roller may be used.
The doctor blade 4 and the auxiliary doctor blade 7 in the gravure coater of the present invention may be made of a material softer than the material of the printing roll 1, and may be made of plastic (for example, made of fluororesin) or rubber. Alternatively, it may be made of metal.
　図１に示される構造を有した本発明のグラビアコーターは、２５℃における粘度が２，０００～１００，０００ｃｐｓ、特に６，０００～３０，０００ｃｐｓである繊維処理剤を塗布するのに適しており、被印刷物としての織編物９は、綿や麻などの天然繊維であっても、ポリエステルやナイロンなどの合成繊維から成るものであってもよく、織物であっても編物であっても良い。 The gravure coater of the present invention having the structure shown in FIG. 1 is suitable for applying a fiber treatment agent having a viscosity at 25 ° C. of 2,000 to 100,000 cps, particularly 6,000 to 30,000 cps. The woven or knitted fabric 9 as the printing material may be a natural fiber such as cotton or linen, a synthetic fiber such as polyester or nylon, or a woven fabric or a knitted fabric.
　又、前述の構造を有した本発明のグラビアコーターは、目付が１３０ｇ／ｍ２程度の薄手の織編物の一方の表面に、撥水剤を含有した上記粘度の処理剤を塗布することによって、優れた吸水性を有し、かつ、速乾性を有した布帛を製造するのに適しており、このような特性を有した織編物を製造する際には、捺染ロール１の外周面に配列されたセル２内の処理剤６を、織編物９の一方の表面の凸部表層部分のみに付着させ、布帛表面の凹部（繊維間の空隙部）には撥水剤が付着していない表面状態とする。これによって、織編物９の凸部が撥水性を示し、凹部において水分が吸収される。
　尚、本発明のグラビアコーターは、目付が１３０ｇ／ｍ２以下の薄地の織編物へのペースト状の処理剤の塗布に適しているだけでなく、目付が２００ｇ／ｍ２以上の厚手の布地への塗布にも対応可能である。 In addition, the gravure coater of the present invention having the above-described structure is obtained by applying a treatment agent having the above viscosity containing a water repellent to one surface of a thin woven or knitted fabric having a basis weight of about 130 g / m 2 . It is suitable for producing a fabric having excellent water absorption and quick drying properties. When producing a woven or knitted fabric having such characteristics, it is arranged on the outer peripheral surface of the printing roll 1. The surface state in which the treatment agent 6 in the cell 2 is attached only to the surface portion of the convex portion on one surface of the woven or knitted fabric 9, and the water repellent is not attached to the concave portion (the space between the fibers) of the fabric surface. And Thereby, the convex part of the woven or knitted fabric 9 exhibits water repellency, and moisture is absorbed in the concave part.
The gravure coater of the present invention is not only suitable for application of a paste-like treatment agent to a thin woven or knitted fabric having a basis weight of 130 g / m 2 or less, but also to a thick fabric having a basis weight of 200 g / m 2 or more. It can also be applied to the coating.
〔本発明の実施形態２〕
　図２に示される第２の実施形態のグラビアコーターでは、図１のドクターブレード４の代わりに、反時計まわりに回転するドクターロール４が設けられており、このドクターロール４により、捺染ロール１の外周面に形成されたセル２内に所定量の処理剤が充填される。この図２のグラビアコーターでは、捺染ロール１の外周面とドクターロール４の外周面とが、上方が開いた鋭角をなすようにして接触しており、この接触によって、撥水剤を含む上記の粘度を有した処理剤６が貯留される処理剤溜め部５が形成されている。図２のドクターロール４は、一般には金属製である。
　図２に示されるようにして、ドクターロール４によって処理剤６をセル２の内部に充填する構造を有した本発明のグラビアコーターは、織編物９の一方の表面に、前述の粘度を有した処理剤６を塗布するのに特に適しており、従来のグラビアコーターでは印刷を行うことが困難であった５０，０００ｃｐｓ以上の粘度の処理剤を塗布することもできる。 [Embodiment 2 of the present invention]
In the gravure coater of the second embodiment shown in FIG. 2, a doctor roll 4 that rotates counterclockwise is provided instead of the doctor blade 4 of FIG. 1, and by this doctor roll 4, the printing roll 1. A predetermined amount of processing agent is filled in the cells 2 formed on the outer peripheral surface. In the gravure coater of FIG. 2, the outer peripheral surface of the printing roll 1 and the outer peripheral surface of the doctor roll 4 are in contact with each other so as to form an acute angle with the upper part opened. A treatment agent reservoir 5 in which the treatment agent 6 having viscosity is stored is formed. The doctor roll 4 in FIG. 2 is generally made of metal.
As shown in FIG. 2, the gravure coater of the present invention having a structure in which the treatment agent 6 is filled inside the cell 2 by the doctor roll 4 has the above-mentioned viscosity on one surface of the woven or knitted fabric 9. A treatment agent having a viscosity of 50,000 cps or more, which is particularly suitable for applying the treatment agent 6 and has been difficult to perform printing with a conventional gravure coater, can also be applied.
〔本発明の実施形態３〕
　図３に示される第３の実施形態のグラビアコーターは、図１及び図２のグラビアコーターとは異なり、捺染ロール１が圧着ローラ３の上方に配置されており、処理剤溜め部５に貯留された処理剤６は、捺染ロール１の回転によって、その外周面に形成されたセル２の内部に充填され、ドクターブレード４によって掻き取られた直後に、織編物９に転移される。
　図３に示される構造を有したグラビアコーターは、捺染ロール１の取り外しを容易に行えるので、作業性が良好である。 [Embodiment 3 of the present invention]
The gravure coater of the third embodiment shown in FIG. 3 is different from the gravure coater of FIGS. 1 and 2 in that the printing roll 1 is disposed above the pressure roller 3 and is stored in the treatment agent reservoir 5. The treatment agent 6 is filled in the cell 2 formed on the outer peripheral surface of the textile roll 1 by rotation and immediately after being scraped off by the doctor blade 4, and transferred to the woven or knitted fabric 9.
Since the gravure coater having the structure shown in FIG. 3 can easily remove the printing roll 1, the workability is good.
〔本発明のグラビアコーターを用いた吸水・速乾性編物の製造例〕
　捺染ロールが、セル容積が４０ｇ／ｍ２である市販の捺染ロール（スチール製のグラビアロール）で、圧着ローラが市販のゴムローラで、処理剤掻き取り装置としてのドクターブレードと補助ドクターブレードが共に市販の金属製ドクターブレードである、図１に示される構造を有した本発明のグラビアコーターを作製した。
　一方、吸水・速乾性編物の基材として、目付２００ｇ／ｍ２の綿製の編物を準備し、処理剤としては、２５℃における粘度が１０，０００ｃｐｓの市販の水エマルジョンタイプのフッ素系撥水剤を準備した。
　上記の構造を有した本発明のグラビアコーターを用いて、上記基材の片面に上記処理剤を塗布することにより、基材の片側面の凹凸構造の凸部だけに撥水剤が付着した構造の吸水・速乾性編物を製造することができた。この際、上記基材への処理剤の転移性は良好であり、しかも、処理剤の裏抜けが発生することはなかった。
　このようにして得られた編物は、吸水性に優れ、発汗時のベタつきを感じさせない速乾性を有するものであることが確認された。 [Production example of water-absorbing and quick-drying knitted fabric using the gravure coater of the present invention]
The printing roll is a commercially available printing roll (steel gravure roll) with a cell volume of 40 g / m 2 , the pressure roller is a commercially available rubber roller, and both the doctor blade and auxiliary doctor blade as a treatment agent scraping device are commercially available. A gravure coater of the present invention having the structure shown in FIG.
On the other hand, a cotton knitted fabric having a basis weight of 200 g / m 2 is prepared as a base material for water-absorbing / quick-drying knitted fabric, and a commercially available water emulsion type fluorine-based water repellent having a viscosity at 25 ° C. of 10,000 cps is prepared. The preparation was prepared.
Using the gravure coater of the present invention having the above structure, a structure in which the water repellent is attached only to the convex portion of the concavo-convex structure on one side of the substrate by applying the treatment agent to one side of the substrate. A water-absorbing and quick-drying knitted fabric could be produced. At this time, the transferability of the treatment agent to the substrate was good, and the treatment agent did not break through.
It was confirmed that the knitted fabric thus obtained has excellent water absorption and has a quick drying property that does not feel sticky when sweating.
　上述の構造を有した本発明のグラビアコーターは、織編物の一方の表面に、粘度の高い処理剤を塗布する際、捺染ロールの外周面に形成されたセルの内部への前記処理剤の充填不良が生じず、当該処理剤を織編物に確実に転移させることができるので、特に、吸水・速乾性織編物の製造に有用である。 The gravure coater of the present invention having the above-described structure is filled with the treatment agent into the cell formed on the outer peripheral surface of the printing roll when a high-viscosity treatment agent is applied to one surface of the woven or knitted fabric. Since the treatment agent can be reliably transferred to the woven or knitted fabric without causing defects, it is particularly useful for the production of a water-absorbing and quick-drying woven or knitted fabric.
　１　捺染ロール
　２　セル
　３　圧着ローラ
　４　処理剤掻き取り装置（ドクターブレード又はドクターロール）
　５　処理剤溜め部
　６　処理剤（繊維処理剤）
　７　補助ドクターブレード
　８　インキパン
　９　織編物 1 Textile roll 2 Cell 3 Pressure roller 4 Treatment agent scraping device (doctor blade or doctor roll)
5 Treatment agent reservoir 6 Treatment agent (fiber treatment agent)
7 Auxiliary doctor blade 8 Ink pan 9 Woven knitted fabric

Claims (3)

  1. 　織編物の表面に、２５℃における粘度が２，０００～１００，０００ｃｐｓの範囲にある処理剤を塗布するのに適したグラビアコーターであって、当該グラビアコーターが、
    　外周面に複数のセルが配列された捺染ロールと、
    　前記捺染ロールと圧着する位置に配置された圧着ローラと、
    　前記捺染ロールに付着した余分な前記処理剤を掻き取るための処理剤掻き取り装置としての、ドクターブレード又はドクターロールのいずれか
    を具備し、
    　前記捺染ロールと前記処理剤掻き取り装置が、上方が開いた鋭角をなして接触しており、当該捺染ロールと処理剤掻き取り装置との接触によって、前記処理剤が貯留される処理剤溜め部が形成されていることを特徴とするグラビアコーター。     A gravure coater suitable for applying a treating agent having a viscosity at 25 ° C. in the range of 2,000 to 100,000 cps on the surface of a woven or knitted fabric,
    A printing roll having a plurality of cells arranged on the outer peripheral surface;
    A pressure roller disposed at a position for pressure bonding with the textile roll;
    As a processing agent scraping device for scraping off the excess processing agent adhering to the textile roll, comprising either a doctor blade or a doctor roll,
    The printing roll and the processing agent scraping device are in contact with each other at an acute angle with the upper portion opened, and the processing agent reservoir is stored by the contact between the printing roll and the processing agent scraping device. A gravure coater characterized in that is formed.
  2. 　前記処理剤掻き取り装置により余分な処理剤を掻き取った後の捺染ロールの外周面と接触する補助ドクターブレードが設けられていることを特徴とする請求項１に記載のグラビアコーター。 The gravure coater according to claim 1, further comprising an auxiliary doctor blade that comes into contact with the outer peripheral surface of the printing roll after the excess processing agent is scraped off by the processing agent scraping device.
  3. 　前記捺染ロールのセル容積が２０～５００ｇ／ｍ２であることを特徴とする請求項１又は２に記載のグラビアコーター。 The gravure coater according to claim 1 or 2, wherein the cell volume of the printing roll is 20 to 500 g / m 2 .
PCT/JP2017/015695 2017-04-19 2017-04-19 Gravure coater WO2018193542A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109484005A (en) * 2018-11-21 2019-03-19 磐安县宸熙工艺品有限公司 A kind of system for removing paddle for indigo printing fabric automatic sizing

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Publication number Priority date Publication date Assignee Title
JPS4748316B1 (en) * 1963-06-01 1972-12-05
JPS5723039B2 (en) * 1976-05-24 1982-05-17
JPS59127764A (en) * 1983-01-06 1984-07-23 Toppan Printing Co Ltd Inking apparatus for gravure rotary printing press
JPS63188047A (en) * 1987-01-29 1988-08-03 Toray Ind Inc Gravure press
JPH0464488A (en) * 1990-07-04 1992-02-28 Canon Inc Preparation of optical recording medium
JP2009028960A (en) * 2007-07-25 2009-02-12 Tohoku Ricoh Co Ltd Coater of stencil process printer and coating unit
JP2011230348A (en) * 2010-04-27 2011-11-17 Komori Corp Gravure printing machine
JP2011240572A (en) * 2010-05-18 2011-12-01 Komori Corp Gravure printing machine
JP2015024619A (en) * 2013-07-29 2015-02-05 Ｊｆｅスチール株式会社 Printer and printing method

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JPS4748316B1 (en) * 1963-06-01 1972-12-05
JPS5723039B2 (en) * 1976-05-24 1982-05-17
JPS59127764A (en) * 1983-01-06 1984-07-23 Toppan Printing Co Ltd Inking apparatus for gravure rotary printing press
JPS63188047A (en) * 1987-01-29 1988-08-03 Toray Ind Inc Gravure press
JPH0464488A (en) * 1990-07-04 1992-02-28 Canon Inc Preparation of optical recording medium
JP2009028960A (en) * 2007-07-25 2009-02-12 Tohoku Ricoh Co Ltd Coater of stencil process printer and coating unit
JP2011230348A (en) * 2010-04-27 2011-11-17 Komori Corp Gravure printing machine
JP2011240572A (en) * 2010-05-18 2011-12-01 Komori Corp Gravure printing machine
JP2015024619A (en) * 2013-07-29 2015-02-05 Ｊｆｅスチール株式会社 Printer and printing method

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Publication number Priority date Publication date Assignee Title
CN109484005A (en) * 2018-11-21 2019-03-19 磐安县宸熙工艺品有限公司 A kind of system for removing paddle for indigo printing fabric automatic sizing

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