Apertured film with raised profile elements method for making the same, and the products thereof
The present invention generally relates to an apertured or reticulated film, and more specifically, the present invention relates to a method of imparting one or more raised elements into a previously apertured or reticulated film utilizing a forming surface. A forming apparatus can accept an apertured film, preferably but not limited to a thermoplastic composition, and impart one or more raised continuous or discontinuous profiled elements into the surface of the apertured film by exposing the apertured film to an air stream having an elevated temperature (such as by exposure of the air stream to direct contact with a heating element). The heated air stream affects the apertured film by inducing the film to deflect onto profiled elements defined in the forming surface of the forming apparatus.
1 . A method of making an apertured film comprising one or more profiled elements comprising the steps of:
a. providing a apertured film;
b. providing a forming apparatus with a surface comprised of one or more profiled elements;
c. providing a heat source;
d. providing a motive force;
e. advancing said apertured film onto said forming apparatus; and
f. heating said film with said heat source to a temperature less than the melting temperature of said film, wherein said heat affects said film by inducing said film to deflect onto profiled elements defined by said forming surface of said forming apparatus, while said motive force applies incremental force to assist deflection of said apertured film.
2 . A method of making an apertured film comprising one or more profiled elements as in claim 1 , wherein said apertured film is a reticulated film.
3 . A method of making an apertured film comprising one or more profiled elements as in claim 1 , wherein said motive force is a vacuum.
4 . A method of making an apertured film comprising one or more profiled elements as in claim 1 , wherein said film is a laminate component.
5 . A method of making an apertured film comprising one or more profiled elements as in claim 1 , wherein said heat source is an air stream.
6 . A method of making an apertured film comprising one or more profiled elements as in claim 1 , wherein said film is an absorbent article component.
7 . A method of making an apertured film comprising one or more profiled elements as in claim 1 , wherein said film is a surgical drape component.
8 . A method of making an apertured film comprising one or more profiled elements as in claim 1 , wherein said film is a bed pad component.
9 . A method of making an apertured film comprising one or more profiled elements as in claim 1 , wherein said film incorporates one or more melt additives.
10 . A method of making an apertured film comprising one or more profiled elements as in claim 1 , wherein said film has one or more additives topically applied.
11 . An apertured film comprising one or more profiled elements, wherein said film is affected by a heat source and incremental force while positioned upon a forming apparatus so as to impart one or more profiled elements into said apertured film.
12 . An apertured film as in claim 11 , wherein said film comprises a cover for an absorbent article.
13 . A cover layer as in claim 10 , wherein said cover layer comprises at least one performance additive.
14 . An absorbent article comprising;
a. a liquid permeable cover layer, wherein said cover layer comprises an apertured film having one or more profiled elements;
b. a liquid impermeable backsheet; and
c. an absorbent core position between said liquid permeable imaged apertured cover layer and said liquid impermeable backsheet.