CA1095716A - Method of producing a decorative article and articles so produced - Google Patents
Method of producing a decorative article and articles so producedInfo
- Publication number
- CA1095716A CA1095716A CA261,127A CA261127A CA1095716A CA 1095716 A CA1095716 A CA 1095716A CA 261127 A CA261127 A CA 261127A CA 1095716 A CA1095716 A CA 1095716A
- Authority
- CA
- Canada
- Prior art keywords
- resin
- backing member
- light diffractive
- cover
- light
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44F—SPECIAL DESIGNS OR PICTURES
- B44F1/00—Designs or pictures characterised by special or unusual light effects
- B44F1/02—Designs or pictures characterised by special or unusual light effects produced by reflected light, e.g. matt surfaces, lustrous surfaces
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
- A44C27/00—Making jewellery or other personal adornments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C5/00—Processes for producing special ornamental bodies
- B44C5/005—Processes for producing special ornamental bodies comprising inserts
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Laminated Bodies (AREA)
- Adornments (AREA)
Abstract
A METHOD OF PRODUCING A DECORATIVE ARTICLE AND
ARTICLES SO PRODUCED
ABSTRACT OF THE DISCLOSURE
A method of producing a decorative article suitable for use in the manufacture of jewellery and other decorative items wherein portion of a sheet of light diffractive material is positioned in a preformed plastic backing and a clear resin is poured into the backing over the light diffract-ive material whereupon curing of the resin a transparent cover is formed over the light diffractive material and any other decorative material which may be placed thereon.
ARTICLES SO PRODUCED
ABSTRACT OF THE DISCLOSURE
A method of producing a decorative article suitable for use in the manufacture of jewellery and other decorative items wherein portion of a sheet of light diffractive material is positioned in a preformed plastic backing and a clear resin is poured into the backing over the light diffract-ive material whereupon curing of the resin a transparent cover is formed over the light diffractive material and any other decorative material which may be placed thereon.
Description
1~95716 ~ he present invention rela-tes to a me-thod of producing an article having a decorative feature, and the articles produced therefrom. The invention is particularl~ suitable to -the producing of articles of jewellery, drink coasters~ place mats and moun-table pictures Heretofore, it has been known to produce items of decorative jewellery by preparing an appropriate fitting in the article of jewellery?
painting the base of said fit-ting black, placing and arranging gem chips on the blackened base and covering said chips with a clear resin, and allowing the resin to set and so embed the gem chips in said jewellery fitting.
It will be appreciated that a black back-ground is desirable in set-ting gem chips as this enhances the colour or colours -thereof.
This method of setting the gem chips directly in articles of jewellery has the obvious serious disadvantage that it has to be performed on the actual article of jewellery which is not always convenient. ~urthe-rmore, it is evident tha-t each article has to be separately subjected to the above gem setting procedure, this being time consuming and therefore uneconomical.
I-t will also be appreciated that gem chips having a high lustre are expensive. There are however many gem chips, synthe-tic stones and the like which, although cheap, because of their lack of lus-tre and brilliance canno-t be used in ~L~957~6 such jewellery settings. Accordingly if these cheaper ma-terials could be used in a manner which enhances the natural character thereof many articles of jewellery could be produced more in-expensively.
It has now been found that if a light diffractive material either alone or as a base for the gem chips, synthetic stones and the like, is used a greater degree of brilliance is achieved, which not only is pleasing in itself but also sets off gem chips, synthetic stones and the like.
Accordingly -the present invention provides a me-thod of producing an article incorporating decorative features comprising placing a light diffractive sheet material in or on a preformed backing member, and securing a cover of trans-parent material to -the backing member to encase the light diffractive material, so that a decorat-ive image created by the diffracted ligh-t is viewable through the cover The backing member is preferably moulded from acrylonitrile butadiene styrene, however, any thermoplastic or thermosetting material is suitable. The plastic materials of the backing member are preferably dyed with an appropriate compatible black dye, however in applications with the light diffractive material covering the entire base of the mould the black dye is not essential.
The mould may comprise a flat or curved base portion with a low peripheral lip.
~09S7~6 It will be appreciated that the base portion of the mould may have any peripheral shape and this will naturally be de-termined by the shape of the article required. When the article is to be used in jewellery the shape will be influenced by the fitting provided to hold the setting. ~hus the shape may be oval, round, square, etc. to suit complemental fittings aesthetically designed to suit -various articles such as jewellery. It will be appreciated that this method enables jewellery settings to be convenien-tly mass-produced in standard sizes and shapes determined by jewellery requirements and accordingly, will obviously reduce the cost of producing the settingsr In a more specific embodiment there is provided a method of producing an article incorp-orating decorative features comprising placing a light diffractive ma-terial in a backing member having a peripheral lip and formed of a synthetic polymeric plastic material, adding liquid resin to said backing member to form a transparent cover over said light diffractive material with said resin, and allowing said resin to cure to form an in-tegral assembly comprising said backing member, said light diffractive material, and the transparent cover.
The clear resin may preferably be an epoxy resin and must be capable of curing upon exposure to the ambient atmosphere. It is preferable, however, to subject the resin to heat, af-ter ~(39S716 application to the backing member in order -to expedite -the curing of the resin and to eliminate trapped air bubbles in the resin.
The preferred ligh-t diffractive material -to be used is an al~linium foil which has been embossed in a manner to diffract light. Such an aluminium foil rnay conveniently be 0.000001 of an inch thick and laminated with a clear plastic film. The embossed pattern on the foil is formed by arrangements of lines applied at the spacing of the order 14000 lines per inch. The result of the diffraction of light from such a foil provides a broad spectra of colour.
It is usual to add a small excess of the clear resin to the mould in order to produce a convex external surface of "domed" effect~ in the resin which i-t has set. It is noted that the clear resin on set-ting in-tensiIies the brilliance of the alwminiwn foil ~md also protects the surface of the foil from damage, the alwminium foil being extremely soft.
It will be understood that -the transparent cover rnay also be preformed and secured to the backing member such as by ultrasonic welding.
In a further embodiment it has been dis-covered that by utilizing the light diffractive material beneath a masking sheet such as a negative, or a screen print on a transparent material, one obtains a picture in shimmering colours, which changes wi-th movemen-t OI the lO9S71~i mounting, through the colours of the spectrum.
One other method of producing such an effect is for a picture to be drawn, a negative made of the picture, such that the white parts are black and the black parts clear; the black area is screen printed onto a transparent sheet, and hence the white area, i.eO the actual picture, being left clear. This is then set in the bac~ing member and the diffractive material will be exposed in the clear areas. If desired drawings, etchings or adhesive transfers may be used -to replace the negative or even adhered direct to the light diffractive material prior to cover-ing with the clear resin. It will be apprecia-ted that ornamental decoration may also be printed directly onto the diffractive material.
~ he invention will now be illustrated by the following Example.
EXAMPLE
.
~ he embossed aluminium foil on a plastic backing is cut to shape and placed on the base of an appropria-tely shaped backing member, having a low peripheral lip and moulded from a styrene plastic.
A small quantity of eooxy resin is placed beneath the foil and the resultant assembly heat for a short period to obtain an even layer of resin between the backing member and foil. ~his operation also assists the foil to lay flat on the backing member.
~.~9S7~6 Epoxy resin is -then poured into -the mould covering the foil un-til a satis-factory "domed"
surface is obtained. Tl1e mould is then placed in a heater set at between 120~F to 165F -to expedite the curing of the epoxy resin and to allow the escape of trapped air bubbles. The curing time is about 70 minutes to 2 hours (depending on the tempera-ture and ~ize of -the article) under -these conditions.
In ~nother embodiment opal chips or slices are arranged individually on top of the foil prior to addition of the epoxy resin. In yet another embodiment several small pieces of the foil cut to any desired shape are placed in a random or organized arrangement in the mould.
Preferably the mould is black in colour. ~he epoxy resin is then added to the mould.
If a transparent sheet or film carrying additional decora-tive material is used a small quantity of resin is placed on -the foil before the sheet or film. Again this is heated to obtain an even layer before the main quanti-ty of resin is added to form the "domed" cover.
One practical arrangement of -the invention will now be described with reference to -the accompanying drawings wherein:-Figure 1 is an exploded view of adecorative article to be produced by the method of the present invention and Figure 2 is a cross-sectional view throug'n the finished article.
~ eferring now to the drawings the article comprises a rnoulded plastic base 1 having an up-standing peripheral lip la. The height of the lip is slightly greater than the total thickness of the corr.ponents 2 and 3 to be located within the area defined by the lip so -that when these components are so located, portion of the lip still protrudes to form a boundary for the area into which the epoxy resin is to be poured.
The piece of diffractive foil rnaterial 2 is cut so as to neatly fit within the area defined by -the peripheral lip and is therefore located by the lip. It will be appreciated that in some embodiments of the invention the diffractive material may not be in the form of a single piece but may be several pieces which are arranged in a random or preset formation on the base.
The transparent film 3 is screen printed so that a clear area remains to define an orna-mental indicia which in this case is the let-ter "T".
It will be appreciated that the provision of a clear space will enable the diffractive material
painting the base of said fit-ting black, placing and arranging gem chips on the blackened base and covering said chips with a clear resin, and allowing the resin to set and so embed the gem chips in said jewellery fitting.
It will be appreciated that a black back-ground is desirable in set-ting gem chips as this enhances the colour or colours -thereof.
This method of setting the gem chips directly in articles of jewellery has the obvious serious disadvantage that it has to be performed on the actual article of jewellery which is not always convenient. ~urthe-rmore, it is evident tha-t each article has to be separately subjected to the above gem setting procedure, this being time consuming and therefore uneconomical.
I-t will also be appreciated that gem chips having a high lustre are expensive. There are however many gem chips, synthe-tic stones and the like which, although cheap, because of their lack of lus-tre and brilliance canno-t be used in ~L~957~6 such jewellery settings. Accordingly if these cheaper ma-terials could be used in a manner which enhances the natural character thereof many articles of jewellery could be produced more in-expensively.
It has now been found that if a light diffractive material either alone or as a base for the gem chips, synthetic stones and the like, is used a greater degree of brilliance is achieved, which not only is pleasing in itself but also sets off gem chips, synthetic stones and the like.
Accordingly -the present invention provides a me-thod of producing an article incorporating decorative features comprising placing a light diffractive sheet material in or on a preformed backing member, and securing a cover of trans-parent material to -the backing member to encase the light diffractive material, so that a decorat-ive image created by the diffracted ligh-t is viewable through the cover The backing member is preferably moulded from acrylonitrile butadiene styrene, however, any thermoplastic or thermosetting material is suitable. The plastic materials of the backing member are preferably dyed with an appropriate compatible black dye, however in applications with the light diffractive material covering the entire base of the mould the black dye is not essential.
The mould may comprise a flat or curved base portion with a low peripheral lip.
~09S7~6 It will be appreciated that the base portion of the mould may have any peripheral shape and this will naturally be de-termined by the shape of the article required. When the article is to be used in jewellery the shape will be influenced by the fitting provided to hold the setting. ~hus the shape may be oval, round, square, etc. to suit complemental fittings aesthetically designed to suit -various articles such as jewellery. It will be appreciated that this method enables jewellery settings to be convenien-tly mass-produced in standard sizes and shapes determined by jewellery requirements and accordingly, will obviously reduce the cost of producing the settingsr In a more specific embodiment there is provided a method of producing an article incorp-orating decorative features comprising placing a light diffractive ma-terial in a backing member having a peripheral lip and formed of a synthetic polymeric plastic material, adding liquid resin to said backing member to form a transparent cover over said light diffractive material with said resin, and allowing said resin to cure to form an in-tegral assembly comprising said backing member, said light diffractive material, and the transparent cover.
The clear resin may preferably be an epoxy resin and must be capable of curing upon exposure to the ambient atmosphere. It is preferable, however, to subject the resin to heat, af-ter ~(39S716 application to the backing member in order -to expedite -the curing of the resin and to eliminate trapped air bubbles in the resin.
The preferred ligh-t diffractive material -to be used is an al~linium foil which has been embossed in a manner to diffract light. Such an aluminium foil rnay conveniently be 0.000001 of an inch thick and laminated with a clear plastic film. The embossed pattern on the foil is formed by arrangements of lines applied at the spacing of the order 14000 lines per inch. The result of the diffraction of light from such a foil provides a broad spectra of colour.
It is usual to add a small excess of the clear resin to the mould in order to produce a convex external surface of "domed" effect~ in the resin which i-t has set. It is noted that the clear resin on set-ting in-tensiIies the brilliance of the alwminiwn foil ~md also protects the surface of the foil from damage, the alwminium foil being extremely soft.
It will be understood that -the transparent cover rnay also be preformed and secured to the backing member such as by ultrasonic welding.
In a further embodiment it has been dis-covered that by utilizing the light diffractive material beneath a masking sheet such as a negative, or a screen print on a transparent material, one obtains a picture in shimmering colours, which changes wi-th movemen-t OI the lO9S71~i mounting, through the colours of the spectrum.
One other method of producing such an effect is for a picture to be drawn, a negative made of the picture, such that the white parts are black and the black parts clear; the black area is screen printed onto a transparent sheet, and hence the white area, i.eO the actual picture, being left clear. This is then set in the bac~ing member and the diffractive material will be exposed in the clear areas. If desired drawings, etchings or adhesive transfers may be used -to replace the negative or even adhered direct to the light diffractive material prior to cover-ing with the clear resin. It will be apprecia-ted that ornamental decoration may also be printed directly onto the diffractive material.
~ he invention will now be illustrated by the following Example.
EXAMPLE
.
~ he embossed aluminium foil on a plastic backing is cut to shape and placed on the base of an appropria-tely shaped backing member, having a low peripheral lip and moulded from a styrene plastic.
A small quantity of eooxy resin is placed beneath the foil and the resultant assembly heat for a short period to obtain an even layer of resin between the backing member and foil. ~his operation also assists the foil to lay flat on the backing member.
~.~9S7~6 Epoxy resin is -then poured into -the mould covering the foil un-til a satis-factory "domed"
surface is obtained. Tl1e mould is then placed in a heater set at between 120~F to 165F -to expedite the curing of the epoxy resin and to allow the escape of trapped air bubbles. The curing time is about 70 minutes to 2 hours (depending on the tempera-ture and ~ize of -the article) under -these conditions.
In ~nother embodiment opal chips or slices are arranged individually on top of the foil prior to addition of the epoxy resin. In yet another embodiment several small pieces of the foil cut to any desired shape are placed in a random or organized arrangement in the mould.
Preferably the mould is black in colour. ~he epoxy resin is then added to the mould.
If a transparent sheet or film carrying additional decora-tive material is used a small quantity of resin is placed on -the foil before the sheet or film. Again this is heated to obtain an even layer before the main quanti-ty of resin is added to form the "domed" cover.
One practical arrangement of -the invention will now be described with reference to -the accompanying drawings wherein:-Figure 1 is an exploded view of adecorative article to be produced by the method of the present invention and Figure 2 is a cross-sectional view throug'n the finished article.
~ eferring now to the drawings the article comprises a rnoulded plastic base 1 having an up-standing peripheral lip la. The height of the lip is slightly greater than the total thickness of the corr.ponents 2 and 3 to be located within the area defined by the lip so -that when these components are so located, portion of the lip still protrudes to form a boundary for the area into which the epoxy resin is to be poured.
The piece of diffractive foil rnaterial 2 is cut so as to neatly fit within the area defined by -the peripheral lip and is therefore located by the lip. It will be appreciated that in some embodiments of the invention the diffractive material may not be in the form of a single piece but may be several pieces which are arranged in a random or preset formation on the base.
The transparent film 3 is screen printed so that a clear area remains to define an orna-mental indicia which in this case is the let-ter "T".
It will be appreciated that the provision of a clear space will enable the diffractive material
2 to be viewed through this clear space in the finished article. As previously disclosed the decorative ma-terial placed on the diffractive foil 2 can be in a wide variety of forms including both two dimensional and three dimensional forms.
After the diffractive foil sheet 2 and the transparent film 3 have been correctly loca-ted in the base 1, the transparen-t cover is formed by pouring clear epoxy resin onto the base in a quantity sufficient to form a "domed" top surface on the resin and the product so produced is cured to produce a final integrated assembly having a cross-section as shown in ~igure 2. ~t will be appreciated as previously disclosed in the speci-fication that the -transparent cover may be pre-formed and subsequently secured to -the base by ultrasonic welding ~ he article so produced is intended to be subsequently mounted in a jewellery setting such settings being commercially produced in a series of standard sizes and accordingly the articles of the present invention can be produced in the same range of sizes to fit the standard jewellery settings. However it is to be understood that the invention may be applied -to -the production of a very wide range of articles examples of which are coastersupon which drink glasses may be placed~
a wide variety of souvenirs such as ornaments or key rings and decorative plaques and pic-tures, place mats and even on a large scale, coffee tables and ornamental tables g_
After the diffractive foil sheet 2 and the transparent film 3 have been correctly loca-ted in the base 1, the transparen-t cover is formed by pouring clear epoxy resin onto the base in a quantity sufficient to form a "domed" top surface on the resin and the product so produced is cured to produce a final integrated assembly having a cross-section as shown in ~igure 2. ~t will be appreciated as previously disclosed in the speci-fication that the -transparent cover may be pre-formed and subsequently secured to -the base by ultrasonic welding ~ he article so produced is intended to be subsequently mounted in a jewellery setting such settings being commercially produced in a series of standard sizes and accordingly the articles of the present invention can be produced in the same range of sizes to fit the standard jewellery settings. However it is to be understood that the invention may be applied -to -the production of a very wide range of articles examples of which are coastersupon which drink glasses may be placed~
a wide variety of souvenirs such as ornaments or key rings and decorative plaques and pic-tures, place mats and even on a large scale, coffee tables and ornamental tables g_
Claims (4)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A method of producing a decorative article com-prising moulding in a mould a backing member having a peripheral lip and formed of an opaque synthetic polymeric plastics material, placing a light diffractive material in the backing mem-ber, adding a quantity of liquid resin to said backing member over the light diffractive mat-erial to form a transparent cover over said light diffractive material with said resin, the quantity of liquid resin added being suf-ficient to form a convex, external surface on the cover above the level of the lip on the backing member when the resin is cured, the liquid resin being selected so that it will ad-here on cooling to the backing member, and allowing said resin to cure to form an integ-ral assembly comprising said backing member, said light diffractive material and the trans-parent cover, an image created by diffracted light being viewable through the cover.
2. A method as claimed in Claim 1, including the step of locating ornamental material on the dif-fractive material before adding the resin so that said ornamental material will constitute a portion of the integral assembly.
3. A method as claimed in Claim 1, including the step of locating an opaque mask intermediate the light diffractive material and the cover to define the image created.
4. A method as claimed in Claim 1, including the step of applying an indicium to the diffrac-tive material.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU320075 | 1975-09-17 | ||
| AUPC3200/75 | 1975-09-17 | ||
| AU564376 | 1976-04-20 | ||
| AUPC5643/76 | 1976-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1095716A true CA1095716A (en) | 1981-02-17 |
Family
ID=25610042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA261,127A Expired CA1095716A (en) | 1975-09-17 | 1976-09-14 | Method of producing a decorative article and articles so produced |
Country Status (4)
| Country | Link |
|---|---|
| CA (1) | CA1095716A (en) |
| FR (1) | FR2324470A1 (en) |
| GB (1) | GB1561363A (en) |
| IT (1) | IT1077035B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4243626A (en) * | 1979-05-21 | 1981-01-06 | Prete John E | Method of making ornamental jewelry stones |
| GB2176226B (en) * | 1985-06-05 | 1988-06-08 | Stephen French | Venetian blind |
| FR2594963B1 (en) * | 1986-02-25 | 1988-06-03 | Garcon Thierry | DECORATION OF A TRANSPARENT OBJECT HAVING AT LEAST TWO FUNCTIONAL FACTORS INCLUDING AT LEAST TWO HOLOGRAMS OF WHICH AT LEAST ONE OF THE TWO CAN BE RETAINED OR VISUALIZED THROUGH THE TRANSPARENCY PROPERTY OF THE OTHER |
| NL1002739C2 (en) * | 1996-01-12 | 1997-05-21 | Standard Group Holding Bv | Method for enclosing an object with a transparent envelope. |
| NL1004987C2 (en) * | 1996-01-12 | 1997-09-17 | Standard Group Holding Bv | Transparent encapsulation of objects - includes placing object in form corresponding to final shape and size, melting encapsulant and introducing it |
| US5845478A (en) * | 1996-09-11 | 1998-12-08 | Textron, Inc. | Lens top shell |
| ITMI20130674A1 (en) * | 2013-04-24 | 2014-10-25 | Francesca Garrone | METHOD FOR THE MANUFACTURE OF ORNAMENTAL ITEMS |
-
1976
- 1976-09-14 GB GB3801276A patent/GB1561363A/en not_active Expired
- 1976-09-14 CA CA261,127A patent/CA1095716A/en not_active Expired
- 1976-09-17 FR FR7628029A patent/FR2324470A1/en active Granted
- 1976-09-17 IT IT2733876A patent/IT1077035B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| FR2324470B3 (en) | 1979-06-01 |
| GB1561363A (en) | 1980-02-20 |
| IT1077035B (en) | 1985-04-27 |
| FR2324470A1 (en) | 1977-04-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |