LASER TEXTURED FLOCKED SUBSTRATE
The present invention is directed to a flocked article and method for forming the flocked article in which a surface to be flocked is first roughened to provide a stronger bond with the flock adhesive. The flocked article includes a plurality of flock fibers adhered directly, or as an assembly containing flock, to an adhesive that is also adhered to a roughened surface of a material. The method of forming the flocked article can include forming a flocked article by contacting a laser-ablated roughened surface of a material with an adhesive that binds the material to a plurality of flock fibers or a flocked containing assembly containing a plurality of flock fibers.
1 . A method for forming a flocked article, comprising:
(a) roughening a surface of a material;
(b) providing flock; and
(c) contacting the roughened surface with a first adhesive, wherein the first adhesive is positioned between the flock and the roughened surface.
2 . The method of claim 1 , wherein the roughening step (a) further comprises at least one of: a physical roughening; a chemical roughening; or a combination thereof.
3 . The method of claim 1 , wherein modifying step (a) further comprises:
roughening the surface with electromagnetic radiation, wherein the electromagnetic radiation removes at least some of the material; and wherein contacting step (c) further comprises:
producing an adhesion force between the first adhesive and the roughened surface.
4 . The method of claim 1 , wherein the material is a non-compatible insert having a first and second opposing surfaces, wherein the first surface has at least one areal surface roughened in registration with the first adhesive; and
wherein contacting step (c) further comprises:
contacting the first adhesive in registration with the at least one areal roughened surface.
5 . The method of claim 4 , wherein the second opposing surface is adhered to a second material.
6 . The method of claim 5 , wherein roughening step (a) further comprises:
having at least one areal zone contained within the areal modified surface,
removing at least most of the non-compatible insert within the at least one areal zone; and
exposing the second material within the at least one areal zone; and
wherein contacting step (c) further comprises:
contacting the adhesive with the second material within the at least one areal zone.
7 . The method of claim 5 , wherein the second material is a second adhesive, and wherein the first adhesive and second adhesive form an adhesive bond.
8 . A flocked article, comprising:
a material having roughened and unroughened surfaces;
a plurality of flock fibers; and
a first adhesive positioned between the flock fibers and the roughened surface.
9 . The flocked article of claim 8 , wherein the roughened surface has a surface energy at least about equal to or greater than that of the first adhesive and at least greater than that of the unroughened surface.
10 . The flocked article of claim 8 , wherein the roughened surface of the material is in registration with the first adhesive.
11 . The flocked article of claim 8 , further comprising a second adhesive, wherein the second adhesive is positioned on a second surface opposing the roughened surface.
12 . The flocked article of claim 11 , wherein the roughened surface comprises a plurality of regions where the first and second adhesives are in contact.
13 . The flocked article of claim 8 , wherein the material comprises at least in part a woven textile material.
14 . A method of manufacturing a flocked article, comprising:
roughening only a portion of a first surface of a material;
forming a flock transfer having an adhesive surface; and
contacting the adhesive surface with the roughened surface.
15 . The method of claim 14 , wherein roughening further comprises cutting, abrading, removing, or a combination thereof of at least some of an areal portion of the modified surface.
16 . The method of claim 14 , wherein the contacting step further comprises:
contacting the adhesive and roughened surfaces in registration; and
wherein the method further comprises:
laminating the contacted the adhesive and roughened surfaces, wherein the laminating and contacting steps can be preformed substantially simultaneously or sequentially.
17 . The method of claim 16 , wherein the material has a second surface opposing the first surface, wherein the second surface comprises another adhesive.
18 . The method of claim 17 , wherein the lamination step further comprises:
heating to a sufficient temperature to soften at least one of the adhesive surface and another adhesive;
creating a softened adhesive flow comprised of the at least one softened adhesive and a thermal gradient, wherein the adhesive flow is along the thermal gradient towards the roughened surface;
contacting the at least one softened adhesive and the roughened surface;
contacting the adhesive surface and another adhesive, wherein at least one of the adhesive surface and other adhesive is in a softened state; and
forming adhesive bonds between the adhesive surface, another adhesive, and roughened surface.
19 . The method of claim 16 , wherein the material has a second surface opposing the first, and further comprising:
contacting the second surface with another adhesive film.
20 . The method of claim 19 , wherein the lamination step further comprises:
heating to a sufficient temperature to soften at least one of the adhesive surface and another adhesive;
creating a softened adhesive flow comprised of the at least one softened adhesive and a thermal gradient, wherein the adhesive flow is along the thermal gradient towards the roughened surface;
contacting the at least one softened adhesive and the roughened surface;
contacting the adhesive surface and another adhesive, wherein at least one of the adhesive surface and other adhesive is in a softened state; and
forming adhesive bonds between the adhesive surface, another adhesive, and roughened surface.
21 . A method of forming a flocked article, comprising:
(a) ablating a surface of a material with a laser to form a laser-ablated surface;
(b) providing a plurality of flock fibers; and
(c) contacting the ablated surface with an adhesive, wherein the adhesive is positioned between the ablated surface and plurality of flock fibers.
22 . The method of claim 21 , wherein the laser ablating step comprises cutting, melting, vaporizing, removing, or a combination thereof of at least some of an areal portion of the surface.
23 . The method of claim 21 , wherein the contacting step further comprises:
contacting the adhesive and laser-ablated surface in registration; and
wherein the method further comprises:
laminating the contacted in registration with the adhesive and laser-ablated surface, wherein the laminating and contacting steps can be performed substantially simultaneously or sequentially.
24 . The method of claim 21 , wherein the material has a second surface opposing the first surface, wherein the second surface comprises another adhesive;
wherein the lamination step further comprises:
heating to a sufficient temperature to soften at least one of the adhesive surface and another adhesive;
creating a softened adhesive flow comprised of the at least one softened adhesive and a thermal gradient, wherein the adhesive flow is along the thermal gradient towards the laser-ablated surface;
contacting the at least one softened adhesive and the laser-ablated surface;
contacting the adhesive surface and another adhesive, wherein at least one of the adhesive surface and other adhesive is in a softened state; and
forming adhesive bonds between the adhesive surface, another adhesive, and laser-ablated surface.
25 . The method of claim 21 , wherein the material comprises in part a woven textile, and wherein the laser-ablation vaporizes the woven textile.