EP0448955A2 - Matière statifiée pour le transfert d'une couche dessinée de fibres par pression - Google Patents

Matière statifiée pour le transfert d'une couche dessinée de fibres par pression Download PDF

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Publication number
EP0448955A2
EP0448955A2 EP91102454A EP91102454A EP0448955A2 EP 0448955 A2 EP0448955 A2 EP 0448955A2 EP 91102454 A EP91102454 A EP 91102454A EP 91102454 A EP91102454 A EP 91102454A EP 0448955 A2 EP0448955 A2 EP 0448955A2
Authority
EP
European Patent Office
Prior art keywords
layer
fibers
adhesive
flocked
transfer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP91102454A
Other languages
German (de)
English (en)
Other versions
EP0448955A3 (fr
Inventor
Keiun Kodo
Hideo Ueno
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TECHNOSTAR CORP
Original Assignee
TECHNOSTAR CORP
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP4050590A external-priority patent/JPH07119158B2/ja
Priority claimed from JP29845890A external-priority patent/JPH04169297A/ja
Application filed by TECHNOSTAR CORP filed Critical TECHNOSTAR CORP
Publication of EP0448955A2 publication Critical patent/EP0448955A2/fr
Publication of EP0448955A3 publication Critical patent/EP0448955A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
    • B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
    • B44C1/17—Dry transfer
    • B44C1/1712—Decalcomanias applied under heat and pressure, e.g. provided with a heat activable adhesive
    • B44C1/1716—Decalcomanias provided with a particular decorative layer, e.g. specially adapted to allow the formation of a metallic or dyestuff layer on a substrate unsuitable for direct deposition
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41G—ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
    • A41G5/00—Hair pieces, inserts, rolls, pads, or the like; Toupées
    • A41G5/004—Hair pieces
    • A41G5/0086—Applicators or tools for applying hair extensions

Definitions

  • the present invention relates to a pressure sensitive transferable flocked fiber patch, and more particularly to such transferable flocked fibers patch having a pattern of flocked fibers which can be readily transferred onto an object article simply through an application of a pressure and without an application of heat.
  • the heat sensitive adhesive layer After cooling at a normal temperature, the heat sensitive adhesive layer is hardened to complete the adhesion between the patterned portion of the flocked fibers onto the article surface. Thereafter, the support sheet is removed from the flocked pattern of the fibers, leaving the flocked pattern of the fibers kept adhered or transferred on the article surface.
  • problems are encountered with the prior transferable flocked fibers patch due to the use of the heat sensitive adhesives requiring the heating and pressing.
  • One of the problem is that, when transferring the patch onto a curved, concave or convex, or the like complicated surface of the object article, it is very difficult to apply a suitable pressing force and the heat simultaneously to such complicated surface uniformly by the use of the hot iron or press.
  • the pressure sensitive transferable flocked fibers patch in accordance with the present invention comprises a support sheet with an adhesive layer having a relatively low adhesive strength, a flocked fibers layer with short fibers flocked in the adhesive layer, a patterning layer formed partially over the flocked fibers layer in a desired pattern with the fibers anchored firmly in the patterning layer, and a transfer layer of pressure sensitive adhesive formed on the patterning layer and having a higher adhesive strength than that of the adhesive layer.
  • the fibers can be readily transferred on an object article surface in a predetermined pattern of the patterning layer simply by the steps of placing the transfer layer of pressure sensitive adhesive upon the article surface, pressing the support sheet against the surface particularly at the patterning layer, and peeling off the support sheet.
  • the fibers anchored in the patterning layer can remain adhered to the article surface while the other fibers can be removed together with the support sheet, leaving the fibers on the article surface in a predetermined pattern defined by the patterning layer to complete the transfer of the flocked fibers onto the article surface.
  • the patterning layer comprises a polymer resin layer which is screen printed on the flocked layer and is cured such that the ends of the fibers opposite to the ends held in the adhesive layer on the support sheet can be entrapped in the resin layer to be firmly anchored therein.
  • the fibers anchored in the patterning resin layer can remain adhered selectively on the article surface after the support sheet is removed.
  • the pressure sensitive transferable flocked fibers patch of the present invention may comprise a support sheet with an adhesive layer having a low adhesive strength, a flocked fibers layer having short fibers flocked in the adhesive layer, and a release sheet with a transfer layer of patterned pressure sensitive adhesive having a greater adhesive strength than the adhesive layer on the support sheet.
  • the pressure sensitive adhesive are formed in a desired pattern on the release sheet to extend partially over the flocked layer so that the fibers flocked in the adhesive layer can be firmly held at that patterned transfer layer.
  • a pressure sensitive transferable flocked fibers patch A in accordance with a first embodiment of the present invention comprises a support sheet 1 coated with an adhesive layer 2 , and a flocked fibers layer 4 comprising a number of substantially evenly distributed short fibers 3 flocked at their lower ends in the adhesive layer 2 .
  • a patterning layer 5 is formed to selectively extend over the flocked layer 4 in a predetermined pattern to have the upper ends of the flocked fibers 3 anchored in the patterning layer 5 .
  • Deposited on the patterning layer 5 is a pressure sensitive transfer adhesive layer 6 which has a higher adhesive strength than the adhesive layer 2 .
  • a release sheet 7 extends over the transfer layer 5 and the flocked layer 4 remaining exposed between the patterning layer 5 .
  • the support sheet 1 is, for example, made of a paper or a transparent or opaque synthetic resin sheet.
  • the adhesive layer 2 is formed by coating a solvent type adhesive such as acrylate silicone resin on the support sheet 1 .
  • a solvent type adhesive such as acrylate silicone resin
  • Such adhesive contains toluene as a solvent which has an affinity to the synthetic resin sheet so that it can be readily coated on the support sheet 1 when the synthetic resin support sheet 1 is used.
  • the short fibers 3 which may be natural or artificial ones, are flocked upright into the adhesive layer 2 by the conventional electrostatic flocking technique, to have the respective lower ends held in the adhesive layer 2 , as shown in FIG. 1.
  • the fibers 3 may be dyed to present a desired color or colors as necessary.
  • the electrostatic flocking is carried out after the solvent in the adhesive is completely vaporized so that no harmful induced explosion of the solvent occurs in the flocking operation.
  • the patterning layer 5 is deposited on the selected areas of the flocked fibers layer 4 by a screen printing in such a manner that the upper ends of the fibers 3 project into the patterning layer 5 .
  • the patterning layer 5 is formed from an urethane resin with an epoxy resin as a cross-linking agent, although it may be formed from acrylic resin, synthetic rubber resin, vinyl chloride resin, vinyl acetate resin, or the like polymer resin. When the resin is cured through the cross-linking reaction, the upper ends of the short fibers 3 can be anchored in the cured patterning layer 5 while the lower ends are loosely held in the adhesive layer 2 .
  • the transfer adhesive layer 6 is deposited on the patterning layer 5 by the like screen printing.
  • the transfer layer 6 exhibits a higher adhesive strength than the adhesive layer 2 and is suitably selected from those widely utilized in the art as a pressure sensitive adhesive. Adhesive components and its proportions may be suitably varied depending on the material of the object article 8 to which the fibers 3 are transferred.
  • the release sheet 7 may be a paper or a synthetic resin which is readily peelable from the transfer layer 6 . The release sheet 7 covers the transfer layer 6 for protection thereof prior to the application of the patch A .
  • FIGS. 3 and 4 an explanation is made to a manner of transferring the fibers 3 of the patch A to the object article 8 .
  • the release sheet 7 is peeled off to expose the transfer layer 6 .
  • the patch A is placed on the surface of the article, such as a cover of a book, a pencil case and the like, with the transfer layer 6 in contact with the article surface, as shown in FIG. 3.
  • a pressing force is applied against the article surface such as by rubbing the rear side of the support sheet 1 forcibly by a finger or palm of the user, whereby the transfer layer 6 can be adhered to the article surface with the fibers 3 held attached on the transfer layer 6 through the patterning layer 5 as being pulled out from the adhesive layer 2 of less adhesive strength.
  • the fibers 3 anchored in the patterning layer 5 can be transferred onto the article surface while the remaining fibers 3 not anchored to the patterning layer 5 are removed together with the support sheet 1 , leaving the fibers 3 in a predetermined pattern on the surface of the article 8 .
  • FIGS. 5 to 7 illustrate a pressure sensitive transferrable flocked fibers patch in accordance with a second embodiment of the present invention.
  • the patch A' comprises a like peelable support sheet 1a coated with a like adhesive layer 2a of relatively low adhesive strength, a flocked fiber layer 4a having short fibers 3a flocked in the adhesive layer 2a , and a pressure sensitive transfer adhesive layer 6a .
  • a release sheet 7a made of a paper or plastic sheet covers the transfer layer 6a and is readily peelable therefrom.
  • the transfer layer 6a comprises a pressure sensitive adhesive which exhibits a higher adhesive strength than the adhesive layer 2a and is deposited on the release sheet 7a in a desired pattern on the release sheet 7a by the screen printing technique, as shown in FIG. 6.
  • transfer layer 6a is then placed on the flocked fiber layer 4a with the release sheet 7 outwardly so as to catch the upper ends of the fibers 3a into the transfer layer 6a , thereby providing the patch A' of FIG. 7.
  • the fibers 3a have its upper end firmly anchored in the transfer layer 6a while the lower ends of the fibers 3a are relatively loosely caught in the adhesive layer 2a .
  • the support sheet 1a is made of a paper or a transparent or opaque synthetic resin.
  • the adhesive layer 2a is made of a hot-melt pressure sensitive adhesive layer 2a deposited on the support sheet 1a .
  • the short fibers 3 which may be natural or artificial ones, are flocked upright by the electrostatic flocking technique.
  • the transfer layer 6a is formed from another hot-melt pressure sensitive adhesive deposited on the release 7a and having a higher adhesive strength than that of the adhesive layer 2a .
  • the hot-melt pressure sensitive adhesive When using the hot-melt pressure sensitive adhesive as the transfer layer 6a requiring a strong adhesive strength, it is normally expected to have an increased thickness than that of the adhesive layer.
  • the hot-melt pressure sensitive adhesive is generally more viscous at room temperature than at an elevated temperature, the screen printing can be practically possible only when the hot-melt pressure sensitive adhesive is of less viscosity as being heated to an elevated temperature.
  • the adhesive of less viscosity would fall and droop along the fibers so as to decolor or degrade the substantial portion of the fibers which makes it practically impossible to deposit a relatively thick adhesive transfer layer directly on the flocked fibers.
  • the transfer layer 6a is screen printed on the release sheet 7a and is then superimposed on the flocked fibers layer 4a . That is, the relatively thick hot-melt pressure sensitive adhesive can be deposited in a predetermined pattern on the release sheet 7a by the screen printing with the adhesive kept in an elevated temperature or in less viscosity condition.
  • the adhesive or the patterned transfer layer 6a can be therefore successively placed on the flocked fiber layer 4a after being cooled to be in more viscous condition, to seize the upper ends of the fibers 3a in the transfer layer 6a . Further, since the transfer layer 6a is formed on the release sheet 7a rather than directly on the flocked fiber layer 4a , a more delicate pattern can be obtained with increased stability.
  • the patch A' of the second embodiment can be applied onto the surface of an article object 8 readily in the like manner as in the first embodiment.
  • FIGS. 8 and 9 show the procedures of transferring the fibers onto the surface of the object article 8 .
  • the patch A' is placed upon the object article surface 8 to bring the exposed transfer layer 6a in contact with the surface 8 , as shown in FIG. 8.
  • a pressing force is applied against the article surface such as by rubbing the rear side of the support sheet 1a forcibly by a finger or palm of the user, whereby the transfer layer 6a can be adhered to the article surface with the fibers 3a held attached thereon as being pulled out from the adhesive layer 2a of less adhesive strength.
  • the fibers 3a anchored in the transfer layer 6a can be transferred onto the article surface while the remaining fibers 3 not anchored to the transfer layer 6a are removed together with the support sheet 1a , leaving the fibers 3a in a predetermined pattern on the surface of the article 8 , as shown in FIG. 9.
  • the adhesive layer 2a of the second embodiment is formed from the hot-melt adhesive layer which is free from any solvent which may induce an explosion when subjected to the electrostatic flocking. Therefore, the electrostatic flocking can be carried out immediately after the formation of the hot-melt adhesive layer 2a on the support sheet 1a without the risk of the induced explosion.
  • the hot-melt pressure sensitive adhesive utilized in the present embodiment may comprise high viscosity resin such as acrylic resin, polyurethane, styrene-butadiene block-polymer (SBS ) and styrene-isopuren block-polymer (SIS), inclusive of a liquid synthetic rubber as a viscosity decreasing agent such as isobutylene rubber, ploybutadiene rubber and the like having a low molecular weight and a suitable fluidity at a normal temperature and/or a viscosity increasing agent such as rosin, rosin ester, hydrogenation rosin ester, xylene-formaldehyde resin, xylene-alkylphenol formalin resin, alkylphenol formalin resin, petroleum resin, terpene resin, terpene-phenol resin, cumarone indene resin and the like.
  • high viscosity resin such as acrylic resin, polyurethane, styrene-butadiene block-polymer
  • the adhesion strength of the pressure sensitive adhesive can be adjusted widely by controlling the added amount of the viscosity increasing agent. That is, to increase an adhesion strength, it is contemplated to incorporate in an increased amount such a resin that has a high solubility parameter like rosin, alkylphenol resin, xylene phenol formalin resin and terpene phenol resin may be added much under a control. To decrease the adhesion strength, on the other hand, it is contemplated to incorporate in an increased proportion such a resin that has a low solubility parameter.
  • the hot-melt pressure sensitive adhesive utilized to form the adhesive layer 2a as well as the transfer layer 6a includes no emulsifier so that the patch A' of the present embodiment has no limitation as to the material of the object article and therefore the fiber can be therefore transferred successfully onto a rubber, a synthetic resin, a textile, a natural leather, a synthetic leather, a wood, a steel, a stone and the others.
  • the support sheet 1 , 1a is made of transparent or semitransparent material
  • the patterning layer 5 or the patterned transfer layer 6a can be seen through the support sheet 1 , 1a so that the patch can be conveniently positioned on the object article surface prior to the transferring of the fibers.
  • the support sheet 1 , 1a is made of opaque material, it is preferred to additionally print a pattern or markings on the rear of the support sheet 1 , 1a in correspondence to the patterning layer 5 or the transfer layer 6a for easy confirmation in positioning the patch on the object article prior to the transfer procedure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Decoration By Transfer Pictures (AREA)
EP19910102454 1990-02-21 1991-02-20 Matière statifiée pour le transfert d'une couche dessinée de fibres par pression Withdrawn EP0448955A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP4050590A JPH07119158B2 (ja) 1990-02-21 1990-02-21 植毛転写材
JP40505/90 1990-02-21
JP29845890A JPH04169297A (ja) 1990-11-01 1990-11-01 感圧式植毛転写材
JP298458/90 1990-11-01

Publications (2)

Publication Number Publication Date
EP0448955A2 true EP0448955A2 (fr) 1991-10-02
EP0448955A3 EP0448955A3 (fr) 1991-10-16

Family

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EP19910102454 Withdrawn EP0448955A3 (fr) 1990-02-21 1991-02-20 Matière statifiée pour le transfert d'une couche dessinée de fibres par pression

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EP (1) EP0448955A3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1473345A1 (fr) * 2003-04-30 2004-11-03 Nitto Denko Corporation Feuille pour le transfert des taches de fibre projetées sur des surfaces adhésives
EP1471126A3 (fr) * 2003-04-25 2004-12-22 Nitto Denko Corporation Ruban adhésif sensible à la pression ou feuille adhésive sensible à la pression et leur procédé de production
CN109715410A (zh) * 2016-09-20 2019-05-03 黄敏三 图形化热转印结构

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142929A (en) * 1978-01-30 1979-03-06 Kazuo Otomine Process for manufacturing transfer sheets
US4292100A (en) * 1979-08-09 1981-09-29 Shigehiko Higashiguchi Method for preparing flock transfer including drying release adhesive prior to applying flock
EP0210304A1 (fr) * 1985-06-03 1987-02-04 Satoi Komatsu Transferts de flocs
US4810549A (en) * 1987-08-24 1989-03-07 High Voltage Graphics, Inc. Plush textured multicolored flock transfer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1471126A3 (fr) * 2003-04-25 2004-12-22 Nitto Denko Corporation Ruban adhésif sensible à la pression ou feuille adhésive sensible à la pression et leur procédé de production
US7097892B2 (en) 2003-04-25 2006-08-29 Nitto Denko Corporation Pressure-sensitive adhesive tape or sheet, and method for producing it
US7338685B2 (en) 2003-04-25 2008-03-04 Nitto Denko Corporation Pressure-sensitive adhesive tape or sheet, and method for producing it
EP1473345A1 (fr) * 2003-04-30 2004-11-03 Nitto Denko Corporation Feuille pour le transfert des taches de fibre projetées sur des surfaces adhésives
CN109715410A (zh) * 2016-09-20 2019-05-03 黄敏三 图形化热转印结构

Also Published As

Publication number Publication date
EP0448955A3 (fr) 1991-10-16

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