# US 11,999,529 B2 · Roll-up band and use of the same for manufacturing mesh bags > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,999,529 B2 - Document ID: US11999529B2 - Status: Granted - Kind: B2 - Application number: 17/944,435 - Filed: 2022-09-14 - Published: 2023-03-16 - Granted: 2024-06-04 - Earliest claimed: 2021-09-15 - Assignees: Girnet Internacional, S.L. - Applicants: Girnet Internacional, S.L. - Inventors: Carles Llorens Borrell; Luis Miguel Marias Albrich; Judith Díaz Rodríguez; Javier Bueno Salinas; Sergi Cruells Llonch - Web page: https://patentgrep.com/patent/US11999529B2 ## CPC - B31B 50/62: by adhesives - B65D 29/04: {Net-like containers made of plastics material} - B29C 65/4815: {Hot melt adhesives, e.g. thermoplastic adhesives} - B31B 70/62: by adhesives - B31B 70/79: {Coating; Impregnating; Waterproofing; Decoating} - B65D 33/06: Handles {(forming part of the closing arrangement B65D33/16)} - B65D 33/22: using heat-activatable adhesive - B31B 2155/002: {by joining superimposed webs, e.g. with separate bottom webs} - B31B 2170/20: having multi-layered walls, e.g. laminated or lined - B31B: MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER (making wound articles, e.g. wound tubes, B31C; combined making and filling B65B) - B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) ## Abstract The present invention relates to a band (1) that can be stored in reel format, which has areas coated by a thermally-activatable adhesive material (2) following a coating pattern (3) that is repeated along the band with at least two main transversal strips (5a, 5b) that extend between two longitudinal edges (1c) of the band and that include areas (21) coated with a grammage of thermally-activatable adhesive material between 35 and 130 gr/m2. A specific use of the band (1) is for making mesh bags (10) and in particular to close a portion of a tubular mesh (11) by interleaving said mesh portion between two coinciding portions of the same or of two bands (1, 1) and with respective main transversal strips (5a, 5a) of the coating pattern (3) towards the mesh; applying pressure; and providing heat. ## Claims ### Claim 1 A band that can be stored in reel format, which has areas coated by a thermally-activatable adhesive material following a coating pattern that is repeated along the band, said band having a front face, a rear face and two optionally parallel longitudinal edges, said band being characterised in that the coating pattern, on the same rear face of the band, comprises at least two main transversal strips that extend between the two longitudinal edges of the band and that include areas coated with a grammage of thermally-activatable adhesive material between 35 and 130 gr/m2. ### Claim 2 (depends on 1) The band according to claim 1, characterised in that the coating pattern, on the same rear face of the band, comprises areas coated with different grammage of thermally-activatable adhesive material, the thermally-activatable adhesive material being able to be the same or different in said areas coated with different grammage of thermally-activatable adhesive material. ### Claim 3 (depends on 2) The band according to claim 2, characterised in that the at least two main transversal strips include the areas coated with the highest grammage of thermally-activatable adhesive material of the entire coating pattern. ### Claim 4 (depends on 3) The band according to claim 3, characterised in that at least one of the two main transversal strips includes areas coated with different grammage of thermally-activatable adhesive material, the area or areas with lower grammage of thermally-activatable adhesive material being located concentrated in one or more peripheral areas of the main transversal strip. ### Claim 5 (depends on 1) The band according to claim 1, characterised in that some or all of the main transversal strips do not reach the longitudinal edges (1c) of the band leaving respective reserve areas between the ends of the main transversal band or bands and the closest longitudinal edge of the band. ### Claim 6 (depends on 1) The band according to claim 1, characterised in that the coating pattern comprises, in addition to the main transversal strips and on the same rear face of the band in which they are formed, two longitudinal strips that extend between at least two of said main transversal strips, longitudinal strips which are located in proximity or coinciding with the two lateral edges of the band. ### Claim 7 (depends on 6) The band according to claim 6, characterised in that the grammage of thermally-activatable adhesive material in these longitudinal strips is less than the grammage of thermally-activatable adhesive material of the main transversal strips, if the grammage is homogeneous in the main transversal strips; or in any case less than the grammage of the area with the highest grammage of thermally-activatable adhesive material of the main transversal strips, if the grammage is not homogeneous in the main transversal strips. ### Claim 8 (depends on 6) The band according to claim 6, characterised in that the grammage of thermally-activatable material in the longitudinal strips is comprised between 5 and 30 gr/m2. ### Claim 9 (depends on 6) The band according to claim 6, characterised in that the longitudinal strips do not reach the longitudinal edges of the band, leaving a reserve area between them and the closest longitudinal edge between 2 to 10 mm. ### Claim 10 (depends on 1) The band according to claim 1, characterised in that the viscoelastic properties of the thermally-activatable adhesive material meet the following: softening start temperature between 75 and 110° C., modulus of elasticity G′ (storage modulus) having a slope in the softening range between 0.2 and 0.7 MPa/° C., measured using the equipment and conditions as described in the Test Methodology section: modulus of elasticity G′ (storage modulus) from 7 MPa to 25 Mpa at a temperature of 30° C. and at 100 Hz in application of a frequency sweep, measured using the equipment and conditions as described in the Test Methodology section. ### Claim 11 (depends on 1) The band according to claim 1, wherein the band is made from a material with non-thermoplastic properties and/or comprises materials of natural origin, recycled plastics or bioplastics, and has a grammage comprised between 40 and 140 gr/m2. ### Claim 12 (depends on 11) The band according to claim 11, wherein the band is made from cellulose or a derivative, jute, bamboo, sugar cane or cotton. ### Claim 13 (depends on 1) The band according to claim 1, characterised in that the front face is coated with a non-stick varnish, the purpose of which is to prevent the rear face with the coating pattern of thermally-activatable adhesive material (2) from adhering to the front face of the band when the band is wound on itself. ### Claim 14 (depends on 1) A reel of a band according to claim 1. ### Claim 15 (depends on 1) A method of using a band for making mesh bags and in particular for closing a portion of a tubular mesh by interleaving said portion of said tubular mesh between two portions of the same or two bands according to claim 1 with the rear faces thereof oriented towards the mesh and coinciding with respective main transversal strips of the coating pattern of said band or bands; applying pressure; and providing sufficient heat on the front faces of said band or bands to activate the thermally-activatable adhesive material of the main transversal strips and at the same time its flow until it passes through the interleaved mesh. ### Claim 16 (depends on 15) The method according to claim 15, wherein the tubular mesh is a mesh with threads of a material with non-thermoplastic properties and/or comprises materials of natural origin, recycled plastics or bioplastics. ### Claim 17 (depends on 1) A method for causing the closure of a portion of a tubular mesh, comprising interleaved a portion of tubular mesh between two portions of the same or of two bands according to claim 1 with the rear faces thereof oriented towards the mesh and coinciding with respective main transversal strips of the coating pattern of said band or bands; applying pressure; and providing heat on the front faces of the band or bands sufficient to activate the thermally-activatable adhesive material of the main transversal strips and at the same time its flow until it passes through the interleaved mesh. ### Claim 18 (depends on 17) The method according to claim 17, characterised in that the tubular mesh is a mesh with threads of a material with non-thermoplastic properties and/or comprises materials of natural origin, recycled plastics or bioplastics. ### Claim 19 (depends on 17) The method according to claim 17, the coating pattern of the band or of at least one of the bands having at least one area coated with thermally-activatable adhesive material not located in the main transversal strips, the method being characterised in that it comprises the non-thermal activation, in a selective manner, of said area.