Decorated rigid panel

Patent metadata

Field	Value
Publication number	US-9956704-B2
Application number	US-201313837143-A
Country	US
Kind code	B2
Filing date	Mar 15, 2013
Priority date	Apr 19, 2012
Publication date	May 1, 2018
Grant date	May 1, 2018

Abstract

A panel includes a thermoset material, and an image comprising sublimation ink. The sublimation ink is absorbed in the thermoset material. The rigid component may be a rigid structure formed by the thermoset material. The panel may be for a bath or shower enclosure.

First claim

What is claimed is:

1. A method of forming a decorated compression molded component, the method comprising:
forming a substrate of uncured thermoset material;
folding the substrate over itself several times to define a multi-layer charge of the uncured thermoset material;
inserting the multi-layer charge between an upper tool and a lower tool;
pressing the multi-layer charge by the upper tool and the lower tool while heating the multi-layer charge by the upper and lower tools to shape and cure the multi-layer charge into a rigid, cured compression molded component having a length and width greater than a length and width of the charge;
separating the upper tool from the cured component and placing a carrier with a transfer image between the compression molded component and the separated upper tool, the transfer image being formed of a sublimation ink; and
transferring at least a portion of the sublimation ink to the compression molded component by pressing the carrier against the compression molded component by the upper and lower tools at a pressure above approximately 100 psi while applying heat, by the upper and lower tools and by heat from the cured compression molded component, to the sublimation ink to between approximately 300 degrees Fahrenheit and approximately 360 degrees Fahrenheit so as to cause the sublimation ink to sublimate and become absorbed into the compression molded component, thereby forming a transferred image therein,
wherein during said transferring of at least a portion of the sublimation ink to the compression molded component, the upper tool is heated to a temperature that is higher than a temperature to which the lower tool is heated.

2. The method of claim 1 , wherein said transferring of the at least a portion of the sublimation ink includes heating the sublimation ink to between approximately 315 degrees Fahrenheit and approximately 345 degrees Fahrenheit.

3. The method of claim 1 , wherein said transferring of the at least a portion of the sublimation ink includes pressing the carrier against the compression molded component at a pressure between approximately 200 psi and approximately 600 psi.

4. The method of claim 1 , further comprising removing the compression molded component from between the upper tool and the lower tool,
wherein said placing of the carrier occurs prior to said removing of the compression molded component.

5. The method of claim 1 , wherein during said pressing of the charge, the upper tool has a temperature of between approximately 300 degrees Fahrenheit and approximately 360 degrees Fahrenheit.

6. The method of claim 5 , wherein during said pressing of the charge, the upper tool has a temperature of between approximately 315 degrees Fahrenheit and approximately 345 degrees Fahrenheit.

7. The method of claim 5 , wherein during said pressing of the charge, the lower tool has a temperature that is between approximately 15 degrees Fahrenheit and 45 degrees Fahrenheit less than the temperature of the upper tool.

8. The method of claim 1 , wherein the compression molded component is a wall panel for a shower enclosure.

9. A method of forming a decorated compression molded component, the method comprising:
forming a substrate of uncured thermoset material;
folding the substrate over itself several times to define a multi-layer charge of the uncured thermoset material;
inserting the multi-layer charge between an upper tool and a lower tool;
pressing the multi-layer charge by the upper tool and the lower tool while heating the multi-layer charge by the upper and lower tools to shape and cure the multi-layer charge into a rigid, cured compression molded component having a length and width greater than a length and width of the charge;
separating the upper tool from the cured component and inserting a carrier with an image between the compression molded component and the separated upper tool, the image being formed with a sublimation ink;
pressing the carrier against the compression molded component by the upper and lower tools while applying heat, by the upper and lower tools and by heat from the cured compression molded component, to the sublimation ink so as to cause the sublimation ink to sublimate and become sufficiently absorbed in the thermoset material to form an image in the compression molded component; and
removing the image-containing compression molded component from between the upper tool and the lower tool,
wherein during said pressing of the multi-layer charge and during said pressing of the carrier, the upper tool is heated to a temperature that is higher than a temperature to which the lower tool is heated.

10. The method of claim 9 , wherein during said pressing of the multi-layer charge, the upper tool heats the upper surface of the charge to a temperature that is more than approximately 15 degrees Fahrenheit higher than a temperature to which the lower tool heats the lower surface of the charge.

11. The method of claim 9 , wherein the compression molded component is a wall panel for a shower enclosure.

12. The method of claim 9 , wherein forming the substrate comprises:
providing a first layer of a homogeneous paste material;
depositing glass fibers over the first layer of the homogeneous paste material; and
applying a second layer of the homogeneous paste material over the glass fibers.

Assignees

• Grunwald Steven
• Kyle Jonathan
• Hill Robert D
• Kohler Co

Inventors

• Grunwald Steven
• Kyle Jonathan
• Hill Robert D

Classifications

• A47K3/30

  Screens or {collapsible} cabinets {for showers or baths (A47K3/283 takes precedence)} · CPC title

• B44C5/0453

  produced by processes involving moulding · CPC title

• B29C2043/522

  selectively heating a part of the mould to achieve partial heating, differential heating · CPC title

• B41M5/38207

  characterised by aspects not provided for in groups B41M5/385 - B41M5/395 · CPC title

• B29C43/20

  Making multilayered or multicoloured articles {(B29C43/14 takes precedence)} · CPC title