POLYLACTIC ACID-FIBERS BASED NON-WOVEN, METHOD FOR MANUFACTURING THEREOF AND ITS USE FOR MAKING COFFEE AND/OR CAPSULES IN PERCOLATING APPARATUS

• Main Authors: Picard, Emilie, Collins, Stephen, Volpe, Raymond
• Format: Patent
• Language: English
• Published: 02.12.2021
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; APPARATUS FOR MAKING BEVERAGES; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; BRAIDING; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; CHEMISTRY; COFFEE MILLS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; CONVEYING; COTTON-WOOL; DOMESTIC ARTICLES OR APPLIANCES; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS; FURNITURE; HANDLING THIN OR FILAMENTARY MATERIAL; HUMAN NECESSITIES; KITCHEN EQUIPMENT; KNITTING; LACE-MAKING; MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGINGARTICLES OR MATERIALS; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL; METALLURGY; NATURAL OR ARTIFICIAL THREADS OR FIBRES; NON-WOVEN FABRICS; ORGANIC MACROMOLECULAR COMPOUNDS; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; SPICE MILLS; SPINNING; STORING; SUCTION CLEANERS IN GENERAL; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TRIMMINGS; UNPACKING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WADDING

A non-woven fabric comprising bicomponent fibers. The non-woven fabric has a core containing polylactic acid (PLA-1), coated with an envelope containing polylactic acid (PLA-2). The fibers are characterised in that PLA-1 is a copolymer of lactic acid monomers L1 and lactic acid monomers D1, and PLA-2 is a copolymer of lactic acid monomers L2 and lactic acid D2, whose D2 monomers rate is greater than the monomers rate D1 of PLA-1. The core further contains a polymeric plasticizer. The non-woven fabric may be used for making coffee filters and/or capsules via a thermoforming process for use in a percolating apparatus.