Method and apparatus for fading a dyed textile material
First Claim
Patent Images
1. An apparatus for selectively fading a dyed cotton textile, comprising:
- (a) a support surface;
(b) a scanning laser selected to project a laser beam along an optical path, the optical path intersecting the support surface and following a given scanning pattern;
(c) a lens in the optical path intermediate the scanning laser and the support surface, the lens selected to focus the laser beam along the optical path to a focal point; and
(d) a mask in the optical path intermediate the lens and the focal point, the mask selected to occlude a portion of the given scanning pattern.
7 Assignments
0 Petitions
Accused Products
Abstract
An apparatus for forming transitioned edges in patterns formed by a scanning laser in a dyed textile material is disclosed. The transition rate between the untreated material and the treated material is controlled by passing a scanning laser beam through a mask prior to the laser beam reaching a focal point. An apertured mask can be employed to control the transition rate, wherein the location of the aperture relative to the focal point of the laser beam and configuration of the aperture periphery are manipulated to effect the transition rate.
-
Citations
17 Claims
-
1. An apparatus for selectively fading a dyed cotton textile, comprising:
-
(a) a support surface;
(b) a scanning laser selected to project a laser beam along an optical path, the optical path intersecting the support surface and following a given scanning pattern;
(c) a lens in the optical path intermediate the scanning laser and the support surface, the lens selected to focus the laser beam along the optical path to a focal point; and
(d) a mask in the optical path intermediate the lens and the focal point, the mask selected to occlude a portion of the given scanning pattern. - View Dependent Claims (2)
-
-
3. An apparatus for treating a sheet material, comprising:
-
(a) a support surface;
(b) a scanning laser selected to project a laser beam along an optical path, the optical path intersecting the support surface and following a given pattern;
(c) a lens in the optical path intermediate the scanning laser and the support surface, the lens selected to focus the laser beam along the optical path to a focal point; and
(d) a mask in the optical path intermediate the lens and the focal point, the mask selected to partially occlude the given pattern. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A method of treating a sheet material, comprising:
-
(a) passing a laser beam through a lens to focus the laser beam to a focal point along an optical path;
(b) scanning the laser beam to follow a given pattern;
(c) occluding a portion of the optical path intermediate the lens and the focal point to create a modified laser beam; and
(d) impinging the modified laser beam on the sheet material. - View Dependent Claims (16)
-
-
17. A method of varying an energy density of a laser beam impinging a sheet material, comprising:
-
(a) focussing a scanning laser beam to a focal point along an optical path, the optical path following a scanning pattern; and
(b) passing the scanning laser beam through a mask prior to the laser beam reaching the focal point along the optical axis, the scanning pattern intersecting a portion of the mask.
-
Specification