Textiles and articles, and processes for making the same
Articles of wear having one or more textiles that include a low processing temperature polymeric composition and a high processing temperature polymeric composition, and methods of manufacturing the same are disclosed. The low processing temperature polymeric composition and the high processing temperature polymeric composition can be selectively incorporated into a textile to provide one or more structural properties and/or other advantageous properties to the article. The textile can be thermoformed to impart such structural and/or other advantageous properties to the article of wear. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.
1. A method for thermoforming an article, the method comprising:
receiving an article, wherein the article is an article of footwear or a component of an article of footwear, and the article comprises a textile, the article comprising a low processing temperature polymeric composition;
positioning the article on a molding surface, wherein the molding surface including a foot-shaped last, and positioning includes placing the textile on the last with the textile covering an upper portion of the last, wrapping around at least a portion of the last, and covering a bottom portion of the last;
following the positioning, covering the entire article and the entire molding surface in a protective sheath;
compressing a material onto the article using the protective sheath by exposing the entire article, the entire material, and entire molding surface to a pressure less than atmospheric pressure;
while compressing the material onto the article, exposing the entire article, the entire material, and the entire molding surface to one or more heating zones, wherein the heat is applied from the outside of the protective sheath; and
subsequent to the exposing the entire article, the entire material, and the entire molding surface to the one or more heating zones, exposing the entire article, the entire material, and the entire molding surface to one or more cooling zones while compressing the material onto the article, thereby forming the thermoformed article;
wherein, in the thermoformed article, the textile forms both at least a medial midfoot area of an upper and an outsole area of a thermoformed article of footwear or a thermoformed component of an article of footwear.
2. The method of claim 1 , wherein the protective sheath comprises an elastomeric material, and wherein the elastomeric material exhibits a melting temperature greater than about 135° C.
3. The method of claim 1 , wherein the exposing the entire article to one or more heating zones comprises exposing at least a portion of the article to a temperature at or above the melting temperature T m of the low processing temperature polymeric composition.
4. The method of claim 3 , wherein the exposing the entire article to one or more cooling zones comprises exposing at least a portion of the article to a temperature below the melting temperature T m of the low processing temperature polymeric composition.
5. The method of claim 4 , wherein the exposing the at least a portion of the article to a temperature below the melting temperature T m of the low processing temperature polymeric composition comprises exposing the at least a portion of the article to a temperature of about 25° C. or less.
6. The method of claim 1 , wherein the exposing the entire article to one or more heating zones comprises exposing at least a portion of the article to a first heating zone having a first temperature at or above the melting temperature T m of the low processing temperature polymeric composition, and exposing the at least a portion of the article to a second heating zone having a second temperature at or above the melting temperature T m of the low processing temperature polymeric composition, wherein the first and second temperatures are distinct from one another.
7. The method of claim 6 , wherein the first temperature is greater than the second temperature.
8. The method of claim 6 , wherein the first temperature is about 80° C. or greater.
9. The method of claim 1 , wherein the protective sheath comprises one or more markings on an inner surface, and, upon the exposing the article to the one or more heating zones and the exposing the article to the one or more cooling zones, the markings are imprinted onto the outer surface of the article.
10. The method of claim 1 , wherein the article further comprises one or more of an ankle collar lining, an ankle collar foam, an upper lining, an upper foam layer, a chassis, or a heel counter.
11. The method of claim 10 , wherein the article further comprises the chassis, the heel counter, or both, and wherein, in the thermoformed article, the chassis, the heel counter, or both are positioned inside the upper.
12. The method of claim 11 , wherein at least a portion of the chassis or the heel counter comprise a second low processing temperature polymeric composition, and wherein the exposing the entire article to one or more heating zones comprises exposing at least a portion of the article to a temperature that is above: a melting temperature T m of the low processing temperature polymeric composition of the article; and a melting temperature T m of the second low processing temperature polymeric composition.