Materials handling system, striated patterned product, and process of forming a striated patterned product
View Patent ↗Disclosed is a materials handling system, a patterned product, and process of fabricating a patterned product, such as non-pvc thermoplastic, through-color, flooring product includes a narrow, long-grained, striated color pattern. The process includes mixing colored particles into a mixed composition, receiving the mixed composition between calendering rolls wherein a front calendering roll which is hotter than a back calendering roll, and forming a product with an elongated pattern. The materials handling system includes a mixing portion disposed to mix colored particles into a mixed composition. The system also include a processing portion disposed to receive the mixed composition, the processing portion having a front calendering roll which is hotter than a back calendering roll.
1. A process for forming a product, the process comprising:
a) mixing colored particles into a mixed composition;
b) rotating an agitator to obtain a substantially uniform distribution of the colored particles in the mixed composition;
c) feeding the mixed composition between calendering rolls, the calendering rolls including a front calendering roll which is hotter than a back calendering roll and the back calendering roll rotating at a faster speed than the front calendering roll, the front calendering roll having a first axis of rotation and the back calendering roll having a second axis of rotation;
d) forming a product along a machine direction, the product having an elongated pattern, wherein the first axis of rotation is located downstream of the second axis of rotation in the machine direction
wherein the mixed composition sticks to the back calendering roll during step c), thereby causing the mixed composition to be smeared by the front calendering roll to create the elongated pattern that exists on the product formed in step d).
2. The process of claim 1 , wherein the elongated pattern is a long-grained or striated color pattern.
3. The process of claim 1 , wherein the elongated pattern includes a majority of long, thin, linear, substantially parallel, mottled color marks, strands, bands or patches.
4. The process of claim 1 , wherein the elongated pattern is through-patterned as to include colors and textures distributed uniformly throughout the thickness of the product.
5. The process of claim 1 , wherein the back calendering roll turns between about 1.1 to about 3.0 times faster than the front calendering roll.
6. The process of claim 1 , wherein the back calendering roll turns between about 1.2 to about 1.9 times faster than the front calendering roll.
7. The process of claim 1 , wherein the back calendering roll turns between about 1.5 to about 1.8 times faster than the front calendering roll.
8. The process of claim 1 , wherein the back calendering roll is between about 150 degrees Fahrenheit to about 270 degrees Fahrenheit.
9. The process of claim 1 , wherein the back calendering roll is between about 220 degrees Fahrenheit to about 270 degrees Fahrenheit.
10. The process of claim 1 , wherein the front calendering roll is between about 250 degrees Fahrenheit to about 330 degrees Fahrenheit.
11. The process of claim 1 , wherein the front calendering roll is between about 280 degrees Fahrenheit to about 330 degrees Fahrenheit.
12. The process of claim 1 , wherein the color particles are less than ½ inch in width, height and length.
13. The process of claim 1 , wherein micro-fibers having a diameter of from about 10 to about 1500 micrometers are added to the mixed composition prior to step c).
14. The process of claim 2 , wherein micro-fibers having a diameter of from about 10 to about 1500 micrometers are added to the mixed composition prior to step c).
15. A process for forming a product, the process comprising:
mixing colored particles and micro-fibers into a mixed composition;
feeding the mixed composition between calendering rolls including a front calendering roll and a back calendering roll, the front calendering roll having a first axis of rotation and the back calendering roll having a second axis of rotation, the back calendering roll rotating at a faster speed than the front calendering roll; and
forming a product along a machine direction, the product having an elongated pattern, wherein the first axis of rotation is located downstream of the second axis of rotation in the machine direction.
16. The process of claim 15 , wherein the micro-fibers have a diameter of from about 10 to about 1500 micrometers.
17. A process for forming a product, the process comprising:
a) mixing colored particles into a mixed composition;
b) feeding the mixed composition between calendering rolls, the calendering rolls including a first calendering roll and a second calendering roll, the front calendering roll having a first axis of rotation and the back calendering roll having a second axis of rotation;
c) forming a product along a machine direction, the product having an elongated pattern;
wherein the first axis of rotation is located downstream of the second axis of rotation in the machine direction, wherein the front calendering roll is hotter than the back calendering roll, and wherein the mixed composition sticks to the back calendering roll during step b), thereby causing the mixed composition to be smeared by the front calendering roll to create the elongated pattern that exists on the product formed in step c).