GB2126951A - Flock transfer - Google Patents

Flock transfer Download PDF

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Publication number
GB2126951A
GB2126951A GB8325214A GB8325214A GB2126951A GB 2126951 A GB2126951 A GB 2126951A GB 8325214 A GB8325214 A GB 8325214A GB 8325214 A GB8325214 A GB 8325214A GB 2126951 A GB2126951 A GB 2126951A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
flock
barrier layer
design
flock transfer
pattern
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Withdrawn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
GB8325214A
Other versions
GB8325214D0 (en )
Inventor
Ernest Henry Worth
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.)
TRANS WORTH SYSTEMS SA
Trans-Worth Systems SA
Original Assignee
* TRANS-WORTH SYSTEMS SA
TRANS WORTH SYSTEMS SA
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

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44CPRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/16Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
    • B44C1/165Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
    • B44C1/17Dry transfer
    • B44C1/1712Decalcomanias applied under heat and pressure, e.g. provided with a heat activable adhesive
    • B44C1/1716Decalcomanias 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
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06QDECORATING TEXTILES
    • D06Q1/00Decorating textiles
    • D06Q1/06Decorating textiles by local treatment of pile fabrics with chemical means

Abstract

A flock transfer comprises flock (12) temporarily adhered to a base sheet (10), the flock having a pattern or design (13) applied thereto in the form of an adhesive/barrier layer (16/15) the barrier layer including an expandable material (15) which will expand on heating to a predetermined temperature. During flock transfer printing the flock transfer and a substrate are heated to adhere the flock to the substrate and to expand the expandable material, thus producing a raised design which simulates conventional embroidery. <IMAGE>

Description

SPECIFICATION Flock transfer This invention relates to flock transfer and more particularly concerns transfer flock printing.

Transfer flock printing is widely known. The process involves the use of a flocked base sheet, on to which the flock is temporarily attached. A design or pattern is printed on to the flocked surface, and while this is still wet, adhesive powder is sprinkled over the whole surface of the flocked base sheet. When the printed adhesive has dried, or has been partially cured, the surplus powder is removed by vacuum or vibration, and only the powder over the adhesive printed areas remains in position. The printed adhesive areas become inert or relatively inert, and are known as a barrier layer.

It is also possible to print onto the flock surface a one stage adhesive, which does not require an additional layer of adhesive powder.

The design or pattern can be printed by any conventional printing technique, screen printing being a preferred technique.

In order to apply the design or pattern to a substrate, such as a garment, the flock transfer, produced as described above, is superposed on the substrate and heated under pressure. This causes the hot-melt adhesive to adhere to the substrate and when the base sheet is removed the flock remains secured to the garment only in the areas in which it is printed.

It is also known to produce relief-coating on a substrate by applying an ink incorporating a foamable material. Such a process is employed as an alternative to flock printing to produce patterns or designs on a substrate. Such materials are available under the trade names MINERFOAM, EXPANDEX, AQUA-SPUN, SPECTER-PUFF, UNIPUFF etc.

It is an object of the present invention to provide an improved flock transfer and flock transfer process, which has the appearance, texture and handle of conventional embroidery.

According to one aspect of the present invention we provide a flock transfer which comprises flock temporarily adhered to a base sheet, the flock having a pattern or design applied thereto in the form of an adhesive/barrier layer, said barrier layer including an expandable material which will expand on heating to at least a predetermined temperature.

The adhesive/barrier layer may be applied as a single layer or may be applied as separate barrier and adhesive layers.

The predetermined temperature is usually in the range 1100--1800 preferably 1300--1700.

The flock transfer defined above can be applied to a substrate such as a garment to transfer flock to the substrate in a conventional process as defined above. The use of an expandable material in the barrier layer which will expand on heating during the flock transfer process will provide a three-dimensional flock pattern or design on the substrate.

Materials suitable for use as the barrier layer include any of the materials which are used in conventional transfer flock printing. These are preferably in the form of a thixotropic paste when the pattern or design is to be applied by screenprinting.

Specific materials useful for the barrier layer are acrylic polymers and elastomers including polyurethanes, or natural or synthetic rubbers, which may be in the form of an emulsion in water, and polyvinyl chloride which may be in the form of a plastisol.

The hot-melt adhesive may also be any adhesive used in conventional transfer flock printing such as hot-melt adhesive powders based on a polyamide or polyester.

The expandable material which is included in the barrier layer may be a polystyrene foam or foam precurser and may be incorporated in a binder. The binder may be an acrylic material.

When an expandable material comprising a foam or foam precurser in a binder is employed we have found that a preparation of 50:50 ratio by weight of barrier material to expandable material is satisfactory but generally this ratio can be between 40:60 and 90:10. In fact the proportion can be adjusted to the degree of dimensional expansion desired. The amount of expandable material used will depend upon the threedimensional effect required.

The patterns or designs may be of any desired form, such as motifs, logos, emblems etc., or may be in the form of written matter, words, numbers or individual letters.

According to another aspect of the invention, a barrier layer incorporating an expandable material may be applied to the entire flocked surface of a flocked base sheet and patterns or designs could then be cut, e.g. by die-cutting from the material.

Such patterns or designs can then be applied by hot pressing onto a substrate such as a garment.

The patterns or designs may be in the form of decorative logos or emblems and/or words or may comprise individual letters which can be assembled on a garment as required.

It is possible to add colouring matter to the barrier paste which contains expandable material, which is different from the colour of the flock. By this means a two-tone effect can be achieved in which the final pattern and texture more closely resembles the texture and feel of embroidery. This effect is caused by a proportion of the bubbles, which have formed by application of heat and pressure to escape towards and through the flock surface, thus giving an appearance of textured yarn or embroidery stitches.

A further form of the invention involves preprinting the flock in different colours in predetermined areas prior to the application of barrier layer incorporating the expandable material. By this means when the pattern or design is transferred to a garment discrete areas of the pattern design would be transferred in different colours thereby producing a multi-coloured pattern or design.

The invention also comprises a method of producing a flock transfer for applying a pattern or design to a substrate, such as a garment which method comprises printing a flock carried by a base sheet with a barrier layer incorporating an expandable material in discrete areas to define a pattern or design, applying an adhesive to the barrier layer.

According to yet another aspect of the invention a process of flock transfer printing comprises assembling a flock transfer as defined above with a substrate, heating the assembly under pressure and stripping the base sheet from the substrate thereby leaving flock in the form of a pattern or design on the garment.

In order that the base sheet can be stripped from the substrate leaving the flock pattern or design applied to the substrate, the flock may be lightly bonded to the base sheet or may be bonded by means of a soluble adhesive.

Reference is now made to the accompanying drawings, in which: Figure 1 is a schematic illustration of a flock transfer according to the invention; Figure 2 is a schematic illustration of a process of flock printing according to the invention; and Figure 3 is a schematic illustration of one way of producing patterns or designs to more closeiy simulate embroidery.

Referring to Figure 1 a flock transfer comprises a base sheet 10 having a layer of adhesive 11 applied thereto to bond temporarily a layer of flock 12 to the base sheet 10. A pattern or design is printed in discrete areas on the flock 12, for example by screen printing, these areas being identified by the reference numeral 1 3. The areas 13 are printed with a barrier layer of thermoplastic material 1 5 incorporating a heatexpandable material and before the barrier material is dry it is sprinkled with a hot-melt adhesive powder 16.

The process of transferring the pattern or design to a substrate 1 7 is illustrated in Figure 2.

The flock transfer is placed in contact with the substrate 1 7 and heated under pressure. The base sheet 10 is then stripped from the substrate 1 7 to give the situation illustrated in Figure 2 in which the flock has been transferred to the substrate 1 7 in the areas designated 14 in Figure 1.

The transferred areas are designated 14 in Figure 2 and the expansion of the expandable material during the heating step causes the barrier layer 1 5 to take-up a convex shape 18 as illustrated in the drawing thereby providing a three-dimensional effect to the pattern or design.

We have found that the most effective simulation of the embroidery occurs when relatively thin lines are used, generally lines of a width of 1 to 5 mm being preferred. With such thin lines, the bubbles which form under heat and pressure, break through in a certain pattern, which in turn give the impression of embroidery stitches.

If it is desired to form wider designs (i.e.

covering a wider area), a series of thinner lines adjacent to each other can be used: thereby imitating rows of stitches. An example of this is shown in Figure 3 in which a pattern 1 9 is made up from the number of spaced thin lines 20.

Claims (16)

Claims
1. A flock transfer which comprises flock temporarily adhered to a base sheet, the flock having a pattern or design applied thereto in the form of an adhesive/barrier layer, said barrier layer including an expandable material which will expand on heating to at least a predetermined temperature.
2. A flock transfer according to Claim 1 in which the adhesive/barrier layer is applied as a single layer.
3. A flock transfer according to Claim 1 in which the adhesive and barrier layers are applied as separate layers.
4. A flock transfer according to any of Claims 1 to 3 in which the barrier layer is applied in the form of a thixotropic paste.
5. A flock transfer according to any of Claims 1 to 4 in which the barrier layer is an acrylic polymer or an elastomer.
6. A flock transfer according to Claim 5 in which the elastomer is a polyurethane or a natural or synthetic rubber.
7. A flock transfer according to Claims 5 or 6 in which the elastomer is in the form of an emulsion.
8. A flock transfer according to any of Claims 1 to 4 in which the barrier layer is a polyvinyl chloride in the form of a plastisol.
9. A flock transfer substantially as herein described with reference to the accompanying drawings.
10. A method of producing a flocked pattern or design which comprises applying a barrier layer incorporating an expandable material to the flocked surface of a flocked base sheet and then cutting patterns or designs from the surface.
11. A method according to Claim 10 in which colouring is added to the barrier layer, said colouring being different from the colour of the flock.
1 2. A method of producing a pattern or design which comprises preprinting a flocked surface of a flocked base sheet in different colours in predetermined areas and subsequently applying thereto a barrier layer incorporating an expandable material.
13. A method according to Claim 12 in which the printing is carried out in discrete areas to define a desired pattern or design.
1 4. A method of flock transfer printing which comprises assembling a flock transfer as defined in any of Claims 1 to 9 with a substrate, heating the assembly thereby adhering the flock in a desired pattern or design on the substrate, the heating being sufficient to raise the temperature of the expandable material to at least the predetermined temperature so that the expandable material is expanded.
1 5. A method according to Claim 13 in which the flock is lightly bonded to the base sheet.
16. A method according to Claim 1 5 in which the flock is bonded to the base sheet by means of a soluble adhesive.
1 7. A method of flock transfer printing substantially as herein described with reference to the accompanying drawings.
GB8325214A 1982-09-21 1983-09-21 Flock transfer Withdrawn GB8325214D0 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB8226936 1982-09-21
GB8325214A GB8325214D0 (en) 1982-09-21 1983-09-21 Flock transfer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8325214A GB8325214D0 (en) 1982-09-21 1983-09-21 Flock transfer

Publications (2)

Publication Number Publication Date
GB8325214D0 GB8325214D0 (en) 1983-10-26
GB2126951A true true GB2126951A (en) 1984-04-04

Family

ID=26283907

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8325214A Withdrawn GB8325214D0 (en) 1982-09-21 1983-09-21 Flock transfer

Country Status (1)

Country Link
GB (1) GB8325214D0 (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2184399A (en) * 1985-12-06 1987-06-24 Heat Seal Method and apparatus for applying a pattern to a substrate
US4810549A (en) * 1987-08-24 1989-03-07 High Voltage Graphics, Inc. Plush textured multicolored flock transfer
US5047103A (en) * 1987-08-24 1991-09-10 High Voltage Graphics, Inc. Method for making flock applique and transfers
GB2245220A (en) * 1990-06-22 1992-01-02 Electroscope Limited Multi-layered transfer sheet
WO1994008799A1 (en) * 1992-10-17 1994-04-28 Fabrex Limited Applique and method for its manufacture
US5858156A (en) * 1998-02-17 1999-01-12 High Voltage Graphics, Inc. Diminishing bleed plush transfer
US7749589B2 (en) 2005-09-20 2010-07-06 High Voltage Graphics, Inc. Flocked elastomeric articles
US7799164B2 (en) 2005-07-28 2010-09-21 High Voltage Graphics, Inc. Flocked articles having noncompatible insert and porous film
US8007889B2 (en) 2005-04-28 2011-08-30 High Voltage Graphics, Inc. Flocked multi-colored adhesive article with bright lustered flock and methods for making the same
US8206800B2 (en) 2006-11-02 2012-06-26 Louis Brown Abrams Flocked adhesive article having multi-component adhesive film
US8354050B2 (en) 2000-07-24 2013-01-15 High Voltage Graphics, Inc. Co-molded direct flock and flock transfer and methods of making same
US8475905B2 (en) 2007-02-14 2013-07-02 High Voltage Graphics, Inc Sublimation dye printed textile
US9012005B2 (en) 2009-02-16 2015-04-21 High Voltage Graphics, Inc. Flocked stretchable design or transfer including thermoplastic film and method for making the same
US9175436B2 (en) 2010-03-12 2015-11-03 High Voltage Graphics, Inc. Flocked articles having a resistance to splitting and methods for making the same
US9193214B2 (en) 2012-10-12 2015-11-24 High Voltage Graphics, Inc. Flexible heat sealable decorative articles and method for making the same

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2184399B (en) * 1985-12-06 1990-02-28 Heat Seal Method for applying a pattern to a substrate.
GB2184399A (en) * 1985-12-06 1987-06-24 Heat Seal Method and apparatus for applying a pattern to a substrate
US4810549A (en) * 1987-08-24 1989-03-07 High Voltage Graphics, Inc. Plush textured multicolored flock transfer
US5047103A (en) * 1987-08-24 1991-09-10 High Voltage Graphics, Inc. Method for making flock applique and transfers
GB2245220A (en) * 1990-06-22 1992-01-02 Electroscope Limited Multi-layered transfer sheet
GB2245220B (en) * 1990-06-22 1993-11-03 Electroscope Limited A transfer sheet
WO1994008799A1 (en) * 1992-10-17 1994-04-28 Fabrex Limited Applique and method for its manufacture
US5858156A (en) * 1998-02-17 1999-01-12 High Voltage Graphics, Inc. Diminishing bleed plush transfer
US8354050B2 (en) 2000-07-24 2013-01-15 High Voltage Graphics, Inc. Co-molded direct flock and flock transfer and methods of making same
US8007889B2 (en) 2005-04-28 2011-08-30 High Voltage Graphics, Inc. Flocked multi-colored adhesive article with bright lustered flock and methods for making the same
USRE45802E1 (en) 2005-07-28 2015-11-17 High Voltage Graphics, Inc. Flocked articles having noncompatible insert and porous film
US7799164B2 (en) 2005-07-28 2010-09-21 High Voltage Graphics, Inc. Flocked articles having noncompatible insert and porous film
US8168262B2 (en) 2005-09-20 2012-05-01 High Voltage Graphics, Inc. Flocked elastomeric articles
US7749589B2 (en) 2005-09-20 2010-07-06 High Voltage Graphics, Inc. Flocked elastomeric articles
US8206800B2 (en) 2006-11-02 2012-06-26 Louis Brown Abrams Flocked adhesive article having multi-component adhesive film
US8475905B2 (en) 2007-02-14 2013-07-02 High Voltage Graphics, Inc Sublimation dye printed textile
US9012005B2 (en) 2009-02-16 2015-04-21 High Voltage Graphics, Inc. Flocked stretchable design or transfer including thermoplastic film and method for making the same
US9175436B2 (en) 2010-03-12 2015-11-03 High Voltage Graphics, Inc. Flocked articles having a resistance to splitting and methods for making the same
US9193214B2 (en) 2012-10-12 2015-11-24 High Voltage Graphics, Inc. Flexible heat sealable decorative articles and method for making the same

Also Published As

Publication number Publication date Type
GB8325214D0 (en) 1983-10-26 grant

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)