Composite abrasive articles and a method for making same
OwnerYarron Bendor, Ilan Pickman +2inventors
InventorsYarron Bendor, Ilan Pickman, Rachel Ben Horin, Gil Strauss
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Abstract
A composite abrasive nonwoven web is prepared by passing fibers through a card to yield a pre-bond web following by the bonding of the pre-web in a calender to achieve a composite abrasive nonwoven web. The composite abrasive nonwoven web may be manufactured in, for example, one or two stages. The produced composite web may have at least two layers where, for example, one layer is an absorbent smooth layer and another layer is a rough abrasive layer.
Claims49
A composite abrasive nonwoven web comprising:
- a. a carrier web;
- and
- b. an abrasive web comprising thick fibers;
- wherein at least one of the carrier web and the abrasive web are formed by a card.
A composite abrasive nonwoven web comprising a blend of thin fibers, absorbent fibers and thick fibers.
A method for producing a composite abrasive nonwoven web, the method comprising the steps of:
- a. providing a carrier web;
- b. feeding thick fibers into a card;
- c. passing said thick fibers through said card to produce a pre-bonded thick fiber web;
- and
- d. thermobonding said pre-bonded thick fiber web and said carrier web.
A method for producing a composite abrasive nonwoven web, the method comprising the steps of:
- a. feeding a blend of thin fibers, absorbent fibers and thick fibers into a card;
- b. passing said blend through said card to produce a pre-bonded composite web;
- and
- c. bonding said pre-bonded composite web into a composite abrasive nonwoven web.
A method for producing a composite abrasive nonwoven web, the method comprising the steps of:
- a. providing a carrier web;
- b. feeding thick fibers into a card;
- c. passing said thick fibers through said card to produce a pre-bonded thick fiber web;
- and
- d. thermobonding said pre-bonded thick fiber web and said carrier web through a calender.
A method for producing a composite abrasive nonwoven web, the method comprising the steps of:
- a. feeding a blend of thin fibers, thick fibers and absorbent fibers into a card;
- b. passing said blend through said card to produce a pre-bonded composite web;
- and
- c. thermobonding said pre-bonded composite web into a composite abrasive nonwoven web through a calender.
A method for producing a composite abrasive nonwoven web, the method comprising the steps of:
- a. providing a carrier web;
- b. feeding fibers having a thickness of 13 dtex or higher into a card;
- c. passing said fibers through said card to produce a pre-bonded thick fiber web;
- and
- d. bonding said pre-bonded thick fiber web and said carrier web.
A method for producing a composite abrasive nonwoven web, the method comprising the steps of:
- a. feeding a blend of viscose fibers having a thickness lower than 5 dtex and thermoplastic polypropylene fibers having a thickness in a range of 1-20 dtex into a card;
- b. passing said viscose fibers and said thermoplastic polypropylene fibers through said card to produce a pre-bonded composite web;
- and
- c. bonding said pre-bonded composite web into a composite abrasive nonwoven web.
Dependencies are inferred from the claim text.