GB2513858A - Hot stamping methods - Google Patents
Hot stamping methods Download PDFInfo
- Publication number
- GB2513858A GB2513858A GB201308133A GB201308133A GB2513858A GB 2513858 A GB2513858 A GB 2513858A GB 201308133 A GB201308133 A GB 201308133A GB 201308133 A GB201308133 A GB 201308133A GB 2513858 A GB2513858 A GB 2513858A
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- GB
- United Kingdom
- Prior art keywords
- die
- silicone rubber
- channels
- hot stamping
- foil
- 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.)
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Classifications
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- 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
- B44C1/1729—Hot stamping techniques
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
- B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
- B44B5/02—Dies; Accessories
- B44B5/028—Heated dies
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- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
A hot stamping method includes the steps of forming a silicone rubber die 1 and using the die to apply a foil panel to a surface of a substantially rigid substrate. The silicone rubber die 1 is formed by engraving a master die with channels, using the master die to form a resin mould and using the mould to form the die 1. The die 1 has a visual image region defined by channels (4, Fig.1) and the non recessed areas of the visual image region define a contact surface of the silicone rubber die. The silicone rubber die 1 is mounted to a platen 22 of a hot stamping machine 20. The hot stamping machine 20 also includes a substrate support 26 and means (30a, 30b) for positioning a strip of hot stamping foil 28 relative to the support. The hot stamping foil 28 is brought into pressure contact with the contact surface of the silicone rubber die 1 and the substrate surface 34 such that transfer layers of the hot stamping foil are applied to the substrate surface as a foil panel that corresponds to the contact surface of the silicone rubber die. A plurality of non-foil areas within the foil panel correspond to the plurality of channels in the silicone rubber die 1.
Description
TITLE
Hot stamping methods
DESCRIPTION
Technical field
The present invention relates to a method of hot stamping in which a heated die is used to apply a stamping foil to the surface of a substrate.
Summary of the Invention
The present invention provides a hot stamping method that is used to apply a foil panel (e.g., a block of foil, typically in the form of a visual image) to a substantially rigid substrate. The foil panc that is applied using the hot stamping method has a unique visual appearance with an embossed' effect.
More particularly, the present invention provides a hot stamping method comprising the steps of: forming a silicone rubber die by: engraving a surface of a master die with a plurality of spaced apart channels that together define a visual image region of the master die surface; using the engraved master die to form a resin mould having a plurality of protrusions that correspond to the plurality of engraved channels; and using the resin mou'd to form a silicone rubber die having a visu& image region defined by a plurality of channels that correspond to the engraved channels in the master die surface, the non-recessed areas of the visual image region defining a contact surface of the silicone rubber die; and applying a foil panel to a surface of a substantially rigid substrate by: mounting the silicone rubber die to a platen of a hot stamping machine, the hot stamping machine further comprising a support and means for positioning hot stamping foil relative to the support, the hot stamping foil having a carrier layer and one or more transfer layers; heating the silicone rubber die to a desired temperature (e.g., by heating the platen); positioning the substantially rigid substrate on the support with the hot stamping foil positioned between the substrate surface and the contact surface of the silicone rubber die; and bringing thc hot stamping foil into pressure contact with the contact surface of the silicone rubber die and the substrate surface (e.g., by lowering the platen towards the stationary or rotating substrate) such that the transfer layers of the hot stamping foil are fixedly applied to the substrate surface as a foil panel that corresponds to the contact surface of the silicone rubber die and where a plurality of non-foil areas within the foil panel correspond to the plurality of channels in the silicone rubber die.
The visual image region of the master die surface may have any suitable size or shape.
In practice, the visual image region is defined by a pattern of spaced apart channels and ridges, i.e., the non-engraved or non-recessed areas of the master die surface that lie between the channels.
The master die can be made of a suitable material, e.g., brass.
The master die is preferaNy engraved using a computer numeric& contrcil (CNC) engraving machine. The applicant has found that this provides consistent results in the applied foil panel.
The channels in the master die are preferably about 0.03 mm deep relative to the surface of the master die. The engraved depth of the channels is a very important part of creating the unique visual appearance of the foil panel. The channels have to be deep enough to ensure refractions of light from the applied foil panel but if they are too deep, the foil panel will break as it is being applied to the substrate surface and will not cover the required area.
The resin mould can be formed from a thermosetting phenol formaldehyde resin.
Such a resin mould has been found to accurately conform to the engraved channels in the master die and will not shrink or distort under the high temperatures and pressures that are utilised when the silicone rubber die is moulded from it. The master die may bc placed into a rcccss which is thcn filled with phenolic rcsin granules. Under a combination of heat and pressure, the resin will then form to the exact contours of the master die.
The step of using the resin mould to form the silicone rubber die can include the sub-steps of: placing un-cured silicone material in the resin mould; heating the silicone material to soften it (i.e., so that it conforms accurately to the protrusions or ridges in the resin mould); and curing the silicone material.
The step of curing the silicone material typically takes place at high temperatures and pressurcs.
During the step of applying the foil panel to the substrate surface, air can become trapped between the substrate surface and the hot stamping foil. This can be problematic. In the hot stamping method of the present invention, this can be resolved by the plurality of channels in the silicone rubber die being arranged to define air-release channels that extend from a central area of the visual image region of the silicone rubber die to a peripheral area of the visual image region. Such air-release channels can be formed by one or more individual channels that define the visual image region of the silicone rubber die and arc in fluid communication with each other. The air-release channels provide a way of preventing air from being trapped when the foil panel is applied to the substrate surface.
The substrate can be any suitable object and can be made of any substantially rigid material to which hot stamping foil can be applied. The hot stamping method of the present invention is not intended to be used with flexible substrates such as paper, card or textiles etc. The contact surface of the silicone rubber die will have an overall profile that corresponds to that of the substrate surface. Thus, if the substrate surface is flat then the contact surface of the silicone rubber die will also be flat and if the substrate surface is curved (e.g., in the ease of a cosmetic ease lid) then the contact surfacc of the silicone rubbcr dic will also bc curvcd.
The substrate surface can be substantially cylindrical. In this case, the substrate is typically rotated during the step of bringing the hot stamping foil into pressure contact with the contact surface of the silicone rubber die and the substrate surface.
Any suitable hot stamping foil can be used, including standard foils that are readily available. A hot stamping foil will typically include a carrier layer (e.g., a polyester carrier), one or more transfer layers that are actually applied to the substrate surface to form the foil panel, and a release layer that allows the transfer layers to be released from the carrier layer. The transfer layers can include one or more of a top layer which can provide a hard coating to the applied foil panel and optionally a colour tint for the metallisation layer (see after), an embossing layer, a metallisation layer which is typically made from aluminium, and an adhesive layer. During the hot stamping method, the transfer layers are bonded permanently to the substrate surface by the combination of heat and pressure and are released from the carrier layer.
The hot stamping foil can be mounted on reels or drums.
Parameters that affect the hot stamping method can be controlled and include dwell time (i.e., how long the silicone rubber die is in pressure contact with the hot stamping foil and the substrate surface), the temperature of the silicone rubber die, and the pressure that is applied during the die contact. For a rotating substrate then dwell time can be varied by varying the rate of rotation such that slower rate provides a longer dwell time and vice versa.
The silicone rubber die can include non-recessed areas outside the visual image region so that other areas of foil (e.g., foil lettering) are applied to the substrate surface in addition to the foil panel at the same time. More particularly, the present invention provides a hot stamping method comprising the steps of: forming a silicone rubber die by: engraving a surface of a master die with a plurality of channels that together define a visual image rcgion of the master dic surface and engraving the master die surface to define recessed areas and non-recessed areas outside of the visual image region; using the engraved master die to form a resin mould having a plurality of protrusions that correspond to the plurality of engraved channels and the recessed areas of the master die surface; and using the resin mould to form a silicone rubber die having a visual image region defined by a plurality of channels that correspond to the engraved channels in the master die surface, and with recessed areas and non-recessed areas outside of the visual image region that correspond to the recessed areas and non-recessed areas of the master die, respectively, the non-recessed areas of the silicone rubber die (which includes the non-recessed arcas within the visual imagc region, i.e., the areas between the channels, as well as the non-recessed areas outside the visual image region) defining a contact surface of the silicone rubber die; and applying foil to a surface of a substantially rigid substrate by: mounting the silicone rubber die to a platen of a hot stamping machine, the hot stamping machine further comprising a support and means for positioning hot stamping foil relative to the support, the hot stamping foil having a carrier layer and one or more transfer layers; heating the silicone rubber die to a desired temperature; positioning the substantially rigid substrate on the support with the hot stamping foil positioned between the substrate surface and the contact surface of thc silicone rubber die; and bringing the hot stamping foil into pressure contact with the contact surface of the silicone rubber die and the substrate surface such that the transfer layers of the hot stamping foil are applied to the substrate surface as a foil panel that corresponds to the non-recessed areas of the contact surface of the silicone rubber die within the visual image region and as other foil areas that correspond to the non-recessed areas of the contact surface of the silicone rubber die outside the visual image rcgion, whcre a plurality of non-foil areas within the foil panel corrcspond to the plurality of channcls in thc silicone rubbcr dic.
Other non-essential or optional features of the hot stamping method are the same as those described herein.
The part of the contact surface that is used to apply the foil panel (i.e., the non-recessed areas within the visual image region) can be slightly higher than the part of the contact surface that is used to apply the other foil areas (i.e., the non-recessed areas outside the visual imagc region) so that the diffcrent areas of thc contact surface exert slightly different pressures to the substrate surface. This means that the foil panel is applied using a slightly higher pressure than the other foil areas (e.g., the foil lettering) so that coilsistdnt results are achicvcd. Height of thc contact surfacc can be dctermined with rcfercncc to a base surface of thc silicone rubber dic.
The method can further comprise the step of applying one or more transfer layers of a hcat transfer film to the substrate surface as a further panel. The heat transfcr film can bc applied using the same hot stamping machine where the heat transfer film is positioned relative to the support awl brought into pressure contact with a contact surface of a die which will often be a different die to the one that is used to apply the foil panel and which can optionally be formed in a different way. The die can be used to provide a surfacc texture to the applicd heat transfcr film, e.g., by having a stippled or ridged contact surface.
The panel of applied heat transfer film preferably at least partially overlaps with the foil panel. The heat transfer film can be used to provide visual and/or textural effects to the applied foil panel.
The panel of heat transfer film can be applied to the substrate surface before or after the foil panel.
Any suitable hcat transfer film can be used, typically having a carrier layer and one or more transfer layers.
The present invention further provides a method of forming a silicone rubber die for use with a hot stamping machine, the method comprising the steps of: engraving a surface of a master die with a plurality of channels that together define a visual image region of the master die surface; using the engraved master die to form a resin mould having a plurality of protrusions that correspond to the plurality of engraved channels; and using the resin mould to form a silicone rubber die having a visual image region defined by a plurality of channels that correspond to the engraved channels in the master die surface, the non-recessed areas of the visual image region defining a contact surface of the silicone rubber die.
The present invention further provides a method of forming a silicone rubber die for use with a hot stamping machine, the method comprising the steps of: engraving a surface of a master die with a plurality of channels that together define a visual image region of the master die surface and engraving the master die surface to define recessed areas and non-recessed areas outside of the visual image region; using the engraved master die to form a resin mould having a plurality of protrusions that correspond to the plurality of engraved channels and the recessed areas of the master die surface; and using the resin mould to form a silicone rubber die having a visual image region defined by a plurality of channels that correspond to the engraved channels in the master die surface, and with recessed areas and non-recessed areas outside of the visual image region that correspond to the recessed areas and non-recessed areas of the master die, respectively, the non-recessed areas of the silicone rubber die defining a contact surface of the silicone rubber die.
Other non-essential or optional features of the method are the same as those described herein with reference to the hot stamping method.
Drawings Figure 1 is a perspective view of a silicone rubber die used in the hot stamping method of the present invention; and Figure 2 is a schematic view ofa hot stamping machine.
With reference to Figure 1 a silicone rubber die 1 includes a contact surface. The contact surface is defined by non-recessed areas of a visual image region 2 (e.g., the ridges between a plurality of recessed channels 4) and the non-recessed areas that dcfinc the individual letters of lettering regions 6a, 6b. The contact surface is raised about 0.75 mm above an intermediate surface 8, which in turn is raised above a base surface 10 of the silicone rubber die 1.
The silicone rubber die 1 is formed as described above. For example a computer numerical control (CNC) enaving machine can be used to engrave the surface of a master die with a pattern of channels that are about 0.03 mm deep. The channels will define a visual image region of the master die surface which corresponds generally to the visual image region 2 of the silicone rubber die shown in Figure 1.
The engraved master die is used to form a resin mould with a pattern of protrusions or ridges that correspond to the pattern of channels in the master die.
The resin mould is then used to form the silicone rubber die 1.
With reference to Figure 2 a hot stamping machine 20 includes a heated platen 22 to which the silicone rubber die 1 is removably mounted. A rigid substrate 24 (e.g., a plastic moulding) is positioned on a stationary support 26 of the hot stamping machine. The platen 22 can be lowered towards the support 26 as shown by arrow A and raised away from the support.
A strip of hot stamping foil 28 is positioned between the silicone rubber die I and the substrate 24. Unused hot stamping foil is storcd on a first reel 30a and the used hot stamping foil is collccted on a sccond rccl 30b. Rotation of thc reels 30a, 30b moves the hot stamping foil 28 in the direction shown by arrow B. The hot stamping foil 28 is supported by rollers 32a, 32b.
The upper surface 34 of the substrate 24 is curved and the intermediate surface 8 of the silicone rubber die 1 has a matching curved profile.
The silicone rubber die 1 is heated to a desired temperature by heating the platen 22.
The platen 22 is lowered towards the support 26 to bring the hot stamping foil 28 into pressure contact with the contact surface of the silicone rubber die I and the substrate surface 34. In other words, the hot stamping foil 28 is clamped at a desired pressure bctwccn the contact surfacc of the silicone rubbcr die 1 and thc substratc surfacc 34 for a desired period of time (the dwell time). The transfer layers of the hot stamping foil 28 that are ill contact with the contact surface of the silicone rubber die 1 are released from the carrier layer and are fixedly applied to the substrate surface 34. The transfer layers of the hot stamping foil 28 that are not in contact with the contact surface of the silicone rubber die 1 will remain adhered lo the carrier layer. The transfer layers that are fixedly applied to the substrate surface 34 will define a foil panel that corresponds to the visual image region 2 of the contact surface of the silicone rubber dic 1 and foil lettering that conesponds to thc lcftcring regions 6a, 6b of the contact surface.
-10 -If the plurality of recessed channels 4 in the silicone rubber die I define air-release channels then air can be expelled through these channels when the pressure contact is applied by the hot stamping machine 20.
Once the foil has been fixedly applied to the substrate surface 34, the platen 22 is raised and the hot stamping foil 28 is wound forwards until an unused section of the strip is positioned between the silicone rubber die I and the substrate 24.
A new substrate 24 can be positioned on the support 26 and the process is repeated.
The foil panel that is fixedly applied to the substrate surface 34 will include a plurality of non-foil areas within it. These correspond to the plurality of recessed channels 4 in the visual image region 2 of the contact surface of the silicone rubber die I. This is because the transfer layers of the hot stamping foil 28 are applied to the substrate surface in a pattern that is determined by the contact surface of the silicone rubber die 1. The foil panel has a unique visual appearance with an embossed' effect.
Claims (15)
- CLAIMS1. A hot stamping method comprising the steps of: forming a silicone rubber die by: engraving a surface of a master die with a plurality of channels that together define a visual image region of the master die surface; using the engraved master die to form a resin mould having a plurality of protrusions that correspond to the plurality of engraved channels; and using the resin mould to form a silicone rubber die having a visual image region defined by a plurality of channels that correspond to the engraved channels in the master die surface, the non-recessed areas of the visual image region defining a contact surface of the silicone rubber die; and applying a foil panel to a surface of a substantially rigid substrate by: mounting the silicone rubber die to a platen of a hot stamping machine, the hot stamping machine further comprising a support and means for positioning hot stamping foil relative to the support, the hot stamping foil having a carrier layer and one or more transfer layers; heating the silicone rubber die to a desired temperature; positioning thc substantially rigid substrate on the support with the hot stamping foil positioned between the substrate surface and the contact surface of the silicone rubber die; and bringing the hot stamping foil into pressure contact with the contact surface of the silicone rubber die and the substrate surface such that the transfer layers of the hot stamping foil are applied to the substrate surface as a foil panel that corresponds to the contact surface of the silicone rubber die and where a plurality of non-foil areas within the foil panel correspond to the plurality of channels in the silicone rubber die.
- 2. A hot stamping method comprising the steps of: forming a silicone rubber die by: -12 -engraving a surface of a master die with a plurality of channels that together define a visual image region of the master die surface and engraving the master die surface to define recessed areas and non-recessed areas outside of the visual image region; using the engraved master die to form a resin mould having a plurality of protrusions that correspond to the plurality of engraved channels and the recessed areas of the master die surface; and using the rcsin mould to form a silicone rubber die having a visual image region defined by a plurality of channels that correspond to the engraved channels in the master die surface, and with recessed areas and non-recessed areas outside of the visual image region that correspond to the recessed areas and non-recessed areas of the master die, respectively, the non-recessed areas of the silicone rubber die defining a contact surface of the silicone rubber die; and applying foil to a surface of a substantially rigid substrate by: mounting the silicone rubber die to a platen of a hot stamping machine, the hot stamping machine further comprising a support and means for positioning hot stamping foil relative to the support, the hot stamping foil having a carrier layer and one or more transfer layers; heating the silicone rubber die to a desired temperature; positioning the substantially rigid substrate on the support with the hot stamping foil positioned between the substrate surface and the contact surface of the silicone rubber die; and bringing the hot stamping foil into pressure contact with the contact surface of the silicone rubber die and the substrate surface such that the transfer layers of the hot stamping foil are applied to the substrate surface as a foil panel that corresponds to the non-recessed areas of the contact surface of the silicone rubber die within the visual image region and as other foil areas that correspond to the non-rcccsscd areas of the contact surface of the silicone rubber die outside the visual image region, where a plurality of non-foil areas within the foil panel correspond to the plurality of channels in the silicone rubber die.-13 -
- 3. A method according to claim 1 or claim 2, wherein the master die is a metal master die.
- 4. A method according to any preceding claim, wherein the master die is engraved using a computer numerical control (CNC) engraving machine.
- 5. A method according to any preceding claim, wherein the plurality of channels in the master die are about 0.03 mm deep relative to the surface of the master die.
- 6. A method according to any preceding claim, wherein the resin mould is formed from a thermosetting phenol formaldehyde resin.
- 7. A method according to any preceding claim, wherein the step of using the resin mould to form the silicone rubber die includes the sub-steps of: placing un-cured silicone material in the resin mould; heating the silicone material to soften it; and curing the silicone material.
- 8. A method according to any preceding claim, wherein the plurality of channels in the silicone rubber die define air-release channels that extend from a central part of the visual image region to a peripheral part of the visual image region.
- 9. A method according to any preceding claim, wherein the substrate surface is substantially cylindrical and the substrate is rotated during the step of bringing the hot stamping foil into pressure contact with the contact surface of the silicone rubber die and the substrate surface.
- 10. A method according to any preceding claim, further comprising the step of applying one or more transfer layers of a heat transfer film to the substrate surface as a ifirther panel.-14 -
- 11. A method according to claim 10, wherein the further panel at least partially overlaps with the foil panel.
- 12. A method according to claim 10 or claim 11, wherein the further panel is applied to the substrate surface before or after the foil panel.
- 13. A method according to claim 2, wherein the non-recessed areas within the visual imagc region of thc silicone rubber die are higher than the non-recessed areas outside the visual image region of the silicone rubber die.
- 14. A method of forming a silicone rubber die for use with a hot stamping machine, the method comprising the steps of: engraving a surface of a master die with a plurality of channels that together define a visual image region of the master die surface; using the engraved master die to form a resin mould having a plurality of protrusions that correspond to the plurality of engraved channels; and using the resin mould to form a silicone rubber die having a visual image region defined by a plurality of channels that correspond to the engraved channels in the master die surface, the non-recessed areas of the visual image region defining a contact surface of the silicone rubber die.14. A method of forming a silicone rubber die for use with a hot stamping machine, the method comprising the steps of: engraving a surface of a master die with a plurality of channels that together define a visual image region of the master die surface and engraving the master dies surface to define recessed areas and non-recessed areas outside of the visual image region; using the engraved master die to form a resin mould having a plurality of protrusions that correspond to the plurality of engraved channels and the recessed areas of the master die surface; and using the resin mould to form a silicone rubber die having a visual image region defined by a plurality of channels that correspond to the engraved channels in -15 -the master die surface, and with recesscd areas and non-recessed areas outside of the visual image region that correspond to the recessed areas and non-recessed areas of the master die, respectively, the non-recessed areas of the silicone rubber die defining a contact surface of the silicone rubber die.Amendment to the claims have been filed as followsCLAIMS1. A hot stamping method comprising the steps of: forming a silicone rubber die by: engraving a surface of a master die with a plurality of channels that together define a visual image region of the master die surface; using the engraved master die to form a resin mould having a plurality of protrusions that correspond to the plurality of engraved channels; and using the resin mould to form a silicone rubber die having a visual image region defined by a plurality of channels that correspond to the engraved channels in the master die surface, the non-recessed areas of the visual image region defining a contact surface of the silicone rubber die; and applying a foil panel to a surface of a substantially rigid substrate by: mounting the silicone rubber die to a platen of a hot stamping machine, the hot stamping machine further comprising a support and means for positioning hot stamping foil relative to the support, the hot stamping foil having a carrier layer and one or more transfer layers; heating the silicone rubber die to a desired temperature; positioning thc substantially rigid substrate on the support with the hot stamping foil positioned between the substrate surface and the contact surface of the silicone rubber die; and bringing the hot stamping foil into pressure contact with the contact surface of the silicone rubber die and the substrate surface such that the transfer layers of the hot stamping foil are applied to the substrate surface as a foil panel that corresponds to the contact surface of the silicone rubber die and where a plurality of non-foil areas within the foil panel correspond to the plurality of channels in the silicone rubber die.2. A hot stamping method comprising the steps of: forming a silicone rubber die by: engraving a surface of a master die with a plurality of channels that together define a visual image region of the master die surface and engraving the master die surface to define recessed areas and non-recessed areas outside of the visual image region; using the engraved master die to form a resin mould having a plurality of protrusions that correspond to the plurality of engraved channels and the recessed areas of the master die surface; and using thc rcsin mould to form a silicone rubber die having a visual image region defined by a plurality of channels that correspond to the engraved channels in the master die surface, and with recessed areas and non-recessed areas outside of the visual image region that correspond to the recessed areas and non-recessed areas of the master die, respectively, the non-recessed areas of the silicone rubber die defining a contact surface of the silicone rubber die; and applying foil to a surface of a substantially rigid substrate by: mounting the silicone rubber die to a platen of a hot stamping machine, the hot stamping machine further comprising a support and means for positioning hot stamping foil relative to the support, the hot stamping foil having a carrier layer and one or more transfer layers; heating the silicone rubber die to a desired temperature; positioning the substantially rigid substrate on the support with the hot stamping foil positioned between the substrate surface and the contact surface of the silicone rubber die; and bringing the hot stamping foil into pressure contact with the contact surface of the silicone rubber die and the substrate surface such that the transfer layers of the hot stamping foil are applied to the substrate surface as a foil panel that corresponds to the non-recessed areas of the contact surface of the silicone rubber die within the visual image region and as other foil areas that correspond to the non-rcccsscd areas of the contact surface of the silicone rubber die outside the visual image region, where a plurality of non-foil areas within the foil panel correspond to the plurality of channels in the silicone rubber die.3. A method according to claim 1 or claim 2, wherein the master die is a metal master die.4. A method according to any preceding claim, wherein the master die is engraved using a computer numerical control (CNC) engraving machine.5. A method according to any preceding claim, wherein the plurality of channels in the master die are about 0.03 mm deep relative to the surface of the master die.6. A method according to any preceding claim, wherein the resin mould is formed from a thermosetting phenol formaldehyde resin.7. A method according to any preceding claim, wherein the step of using the resin mould to form the silicone rubber die includes the sub-steps of: placing un-cured silicone material in the resin mould; heating the silicone material to soften it; and curing the silicone material.8. A method according to any preceding claim, wherein the plurality of channels in the silicone rubber die define air-release channels that extend from a central part of the visual image region to a peripheral part of the visual image region.9. A method according to any preceding claim, wherein the substrate surface is substantially cylindrical and the substrate is rotated during the step of bringing the hot stamping foil into pressure contact with the contact surface of the silicone rubber die and the substrate surface.10. A method according to any preceding claim, further comprising the step of applying one or more transfer layers of a heat transfer film to the substrate surface as a ifirther panel.tj, 19 11. A method according to claim 10, wherein the further panel at least partially overlaps with the foil panel.12. A method according to claim 10 or claim 11, wherein the further panel is applied to the substrate surface before or after the foil panel.13. A method according to claim 2, wherein the non-recessed areas within the visual image region of the silicone rubber die are higher than the non-recessed areas outside the visual image region of the silicone rubber die.14. A method of forming a silicone rubber die for use with a hot stamping machine, the method comprising the steps of: engraving a surface of a master die with a plurality of channels that together define a visual image region of the master die surface; using the engraved master die to form a resin mould having a plurality of protrusions that correspond to the plurality of engraved channels; and using the resin mould to form a silicone rubber die having a visual image region defined by a plurality of channels that correspond to the engraved channels in the master die surface, the non-recessed areas of the visual image region defining a contact surface of the silicone rubber die.
- 15. A method of forming a silicone rubber die for use with a hot stamping : . machine, the method comprising the steps of: * engraving a surface of a master die with a plurality of channels that together define a visual image region of the master die surface and engraving the master die S surface to define recessed areas and non-recessed areas outside of the visual image region; using the engraved master die to form a resin mould having a plurality of : protrusions that correspond to the plurality of engraved channels and the recessed areas of the master die surface; and using the resin mould to form a silicone rubber die having a visual image region defined by a plurality of channels that correspond to the engraved channels in the master die surface, and with recesscd areas and non-recessed areas outside of the visual image region that correspond to the recessed areas and non-recessed areas of the master die, respectively, the non-recessed areas of the silicone rubber die defining a contact surface of the silicone rubber die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1308133.6A GB2513858B (en) | 2013-05-07 | 2013-05-07 | Hot stamping methods |
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| Application Number | Priority Date | Filing Date | Title |
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| GB1308133.6A GB2513858B (en) | 2013-05-07 | 2013-05-07 | Hot stamping methods |
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| GB201308133D0 GB201308133D0 (en) | 2013-06-12 |
| GB2513858A true GB2513858A (en) | 2014-11-12 |
| GB2513858B GB2513858B (en) | 2015-08-26 |
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| GB1308133.6A Active GB2513858B (en) | 2013-05-07 | 2013-05-07 | Hot stamping methods |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3984747A1 (en) * | 2020-10-16 | 2022-04-20 | B&R Industrial Automation GmbH | Hot foil stamping machine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109159600A (en) * | 2018-08-09 | 2019-01-08 | 至远彩色印刷工业（惠州）有限公司 | A kind of three-dimensional flat ironing process of positioning |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1308164A (en) * | 1970-11-17 | 1973-02-21 | Letraset International Ltd | Mesh heated die |
| GB1368949A (en) * | 1971-11-17 | 1974-10-02 | Letraset International Ltd | Rotary die marking machines |
| US4059470A (en) * | 1966-12-27 | 1977-11-22 | J. Bobst Et Fils S.A. | Apparatus and method for transferring a material from a carrier means to a sheet means |
| JPS6189083A (en) * | 1984-10-05 | 1986-05-07 | Aron Kasei Co Ltd | Hot stamp type transfering method |
| EP1340606A1 (en) * | 2002-02-22 | 2003-09-03 | Mitsuboshi Belting Ltd. | Method of applying information on a surface of a layer exposed in an autmotive passenger compartment and a layer made according to the method |
-
2013
- 2013-05-07 GB GB1308133.6A patent/GB2513858B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4059470A (en) * | 1966-12-27 | 1977-11-22 | J. Bobst Et Fils S.A. | Apparatus and method for transferring a material from a carrier means to a sheet means |
| GB1308164A (en) * | 1970-11-17 | 1973-02-21 | Letraset International Ltd | Mesh heated die |
| GB1368949A (en) * | 1971-11-17 | 1974-10-02 | Letraset International Ltd | Rotary die marking machines |
| JPS6189083A (en) * | 1984-10-05 | 1986-05-07 | Aron Kasei Co Ltd | Hot stamp type transfering method |
| EP1340606A1 (en) * | 2002-02-22 | 2003-09-03 | Mitsuboshi Belting Ltd. | Method of applying information on a surface of a layer exposed in an autmotive passenger compartment and a layer made according to the method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3984747A1 (en) * | 2020-10-16 | 2022-04-20 | B&R Industrial Automation GmbH | Hot foil stamping machine |
| US11981118B2 (en) | 2020-10-16 | 2024-05-14 | B&R Industrial Automation GmbH | Hot foil stamping machine |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201308133D0 (en) | 2013-06-12 |
| GB2513858B (en) | 2015-08-26 |
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