WO2024003426A1 - Ecological bag - Google Patents
Ecological bag Download PDFInfo
- Publication number
- WO2024003426A1 WO2024003426A1 PCT/ES2023/070352 ES2023070352W WO2024003426A1 WO 2024003426 A1 WO2024003426 A1 WO 2024003426A1 ES 2023070352 W ES2023070352 W ES 2023070352W WO 2024003426 A1 WO2024003426 A1 WO 2024003426A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bag
- fabric
- polypropylene
- ecological bag
- recycled polymer
- Prior art date
Links
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 24
- 239000004744 fabric Substances 0.000 claims abstract description 20
- 239000004743 Polypropylene Substances 0.000 claims abstract description 19
- -1 polypropylene Polymers 0.000 claims abstract description 19
- 229920001155 polypropylene Polymers 0.000 claims abstract description 19
- 229920000642 polymer Polymers 0.000 claims abstract description 13
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 12
- 239000002985 plastic film Substances 0.000 claims abstract 5
- 239000000463 material Substances 0.000 description 8
- 238000003475 lamination Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009958 sewing Methods 0.000 description 2
- OYPRJOBELJOOCE-OUBTZVSYSA-N Calcium-41 Chemical compound [41Ca] OYPRJOBELJOOCE-OUBTZVSYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- OYPRJOBELJOOCE-CONNIKPHSA-N calcium-48 Chemical compound [48Ca] OYPRJOBELJOOCE-CONNIKPHSA-N 0.000 description 1
- 239000005025 cast polypropylene Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- 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
- B65D29/00—Sacks or like containers made of fabrics; Flexible containers of open-work, e.g. net-like construction
Definitions
- the present invention relates to an ecological bag that comprises a high percentage of recycled material but offers properties highly similar to those of a virgin polymer bag.
- cloth bags made of raffia and other materials is known in the state of the art.
- One of the most used materials is polypropylene, which allows creating threads with which to weave the material of the bag.
- virgin polymer has problems, since not all polymers are biodegradable, its raw material comes from petroleum and it has a certain energy consumption in its production. It is preferable to be able to reuse material to reduce energy and oil consumption.
- the ecological bag is the type made of fabric and has a closed lower part and a closable upper mouth.
- the fabric is made up of polypropylene threads that They comprise 40-60% by mass of recycled polymer (preferably 42-50%), such as recycled polypropylene, and 3-15% of calcium carbonate (CaCO3).
- Figure 1 Perspective view of a first embodiment example with detail of the fabric.
- Figure 1 shows an example of an embodiment in the form of a bag of woven material.
- the bag is made of fabric (1) with a closed lower part (2) and an upper part with a mouth (3).
- the mouth (3) can be closed in various ways, such as by heat sealing, sewing...
- the fabric (1) is tubular to reduce seams, but it can be open fabric (1) or circular flat fabric.
- the manufacture of the bag starts by mixing polypropylene granules, recycled polymer and calcium carbonate, preferably in nanoparticles. This mixture is made molten. Threads are created from the material thus melted, and it is woven similar to raffia to generate the fabric (1).
- the fabric (1) is formed into bags, in a similar way to that used in state-of-the-art polypropylene bags.
- the bottom or bottom part (2) can be sewn with thread, sealed by ultrasound. It can also be left flat, making folds and sewing to generate it.
- both the lower part (2) and the mouth (3) are made flat, so that the weight of the merchandise closes the bag (called “valve” in the art).
- the fabric (1) be tubular or flat (valve or flat bottom).
- the bag may be laminated, with a sheet of polypropylene or another thermoplastic, adhered by heat. Likewise, it can be laminated, in which case the sheet can be made of the same polymer (cast film polypropylene (non-oriented cast polypropylene), OPP).
- the lamination or lamination can be on the inside or outside of the bag. It is especially interesting to laminate on the inside, which allows the bag to be welded together to close. This type of lamination or lamination is best done on flat fabrics (1).
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packages (AREA)
- Bag Frames (AREA)
Abstract
The present invention relates to an ecological bag made of fabric (1) and having a closed bottom (2) and an upper opening (3) that can be closed, the fabric (1) of which is made up of polypropylene threads comprising 40-60% by mass of recycled polymer and 3-15% of calcium carbonate (CaCO3), the recycled polymer being polypropylene. The bag comprises between 42 and 50% of recycled polymer. The bag (1) is tubular. The bag comprises a plastic sheet attached to one face of the fabric (1), the plastic sheet being on the inner face of the bag (1) and is made of non-oriented molten polypropylene film.
Description
SECTOR DE LA TÉCNICA TECHNIQUE SECTOR
La presente invención se refiere a un saco ecológico que comprende un porcentaje elevado de material reciclado pero ofrece propiedades altamente similares a las de un saco de polímero virgen. The present invention relates to an ecological bag that comprises a high percentage of recycled material but offers properties highly similar to those of a virgin polymer bag.
ESTADO DE LA TÉCNICA STATE OF THE TECHNIQUE
Se conoce en el estado de la técnica la existencia de sacos de tela, formados por rafia y otros materiales. Uno de los materiales más utilizados es el polipropileno, que permite crear hilos con los que tejer el material del saco. The existence of cloth bags made of raffia and other materials is known in the state of the art. One of the most used materials is polypropylene, which allows creating threads with which to weave the material of the bag.
Sin embargo, el uso de polímero virgen tiene problemas, en tanto no todos los polímeros son biodegradables, su materia prima proveniente del petróleo y tiene un cierto consumo de energía en su producción. Es preferible poder reutilizar material para reducir el consumo de energía y de petróleo. However, the use of virgin polymer has problems, since not all polymers are biodegradable, its raw material comes from petroleum and it has a certain energy consumption in its production. It is preferable to be able to reuse material to reduce energy and oil consumption.
El solicitante no conoce ninguna solución que pueda ser considerada similar a la invención. The applicant does not know of any solution that can be considered similar to the invention.
BREVE EXPLICACIÓN DE LA INVENCIÓN BRIEF EXPLANATION OF THE INVENTION
La invención consiste en un saco ecológico según las reivindicaciones. Sus diferentes realizaciones resuelven los problemas del estado de la técnica y proveen ventajas reseñadles. The invention consists of an ecological bag according to the claims. Its different embodiments solve the problems of the state of the art and provide notable advantages.
El saco ecológico es del tipo formado por una tela y posee una parte inferior cerrada y una boca superior cerrable. La tela está formada por hilos de polipropileno que
comprenden un 40-60% en masa de polímero reciclado (preferiblemente 42-50%), como polipropileno reciclado, y 3-15% de carbonato cálcico (CaCO3). The ecological bag is the type made of fabric and has a closed lower part and a closable upper mouth. The fabric is made up of polypropylene threads that They comprise 40-60% by mass of recycled polymer (preferably 42-50%), such as recycled polypropylene, and 3-15% of calcium carbonate (CaCO3).
Otras variantes se mostrarán en el resto de la memoria. Other variants will be shown in the rest of the memory.
DESCRIPCIÓN DE LOS DIBUJOS DESCRIPTION OF THE DRAWINGS
Para una mejor comprensión de la invención, se incluyen las siguientes figuras. For a better understanding of the invention, the following figures are included.
Figura 1 : Vista en perspectiva de un primer ejemplo de realización con detalle de la tela. Figure 1: Perspective view of a first embodiment example with detail of the fabric.
MODOS DE REALIZACIÓN DE LA INVENCIÓN MODES OF EMBODIMENT OF THE INVENTION
A continuación, se pasa a describir de manera breve un modo de realización de la invención, como ejemplo ilustrativo y no limitativo de ésta. Next, a way of carrying out the invention is briefly described, as an illustrative and non-limiting example of it.
En la figura 1 se aprecia un ejemplo de realización en forma de saco de material tejido. El saco está realizado en tela (1 ) con una parte inferior (2) cerrada y una parte superior con una boca (3). La boca (3) puede cerrarse de diversas formas, como por termosellado, cosido... Idealmente la tela (1 ) es tubular para reducir costuras, pero puede ser tela (1 ) abierta o tejido plano circular. Figure 1 shows an example of an embodiment in the form of a bag of woven material. The bag is made of fabric (1) with a closed lower part (2) and an upper part with a mouth (3). The mouth (3) can be closed in various ways, such as by heat sealing, sewing... Ideally the fabric (1) is tubular to reduce seams, but it can be open fabric (1) or circular flat fabric.
La tela (1 ) está realizada mediante una pluralidad de hilos (4) de polipropileno con 40- 60% en masa de polímero reciclado, preferiblemente polipropileno o resinas termofusibles. Igualmente comprende 3-15% de carbonato cálcico (CaCO3). Preferiblemente las proporciones de material reciclado son entre 42 y 50% y las de carbonato cálcico 10-15%. Igualmente puede tener colorantes, pero se consideran aditivos ¡rrelevantes y no forman parte de la fórmula. The fabric (1) is made from a plurality of polypropylene threads (4) with 40-60% by mass of recycled polymer, preferably polypropylene or hot melt resins. It also comprises 3-15% calcium carbonate (CaCO3). Preferably the proportions of recycled material are between 42 and 50% and those of calcium carbonate 10-15%. It may also have colorants, but they are considered relevant additives and are not part of the formula.
En un ejemplo preferido, se dispone 44% de polipropileno reciclado, 8% de carbonato cálcico y 48% de polipropileno virgen. Un segundo ejemplo incluye 48% de
polipropileno reciclado 1 1 % de carbonato cálcico y 41 % de polipropileno virgen. In a preferred example, 44% recycled polypropylene, 8% calcium carbonate and 48% virgin polypropylene are provided. A second example includes 48% of recycled polypropylene 1 1% calcium carbonate and 41% virgin polypropylene.
La fabricación del saco parte de mezclar gránulos de polipropileno, de polímero reciclado y carbonato cálcico, preferiblemente en nanopartículas. Esta mezcla se realiza fundida. Se crean hilos a partir del material así fundido, y se teje similar a la rafia para generar la tela (1 ). La tela (1 ) se conforma en sacos, de forma similar a lo utilizado en sacos de polipropileno del estado de la técnica. El fondo o parte inferior (2) puede ser cosido con hilo, sellado por ultrasonidos. Igualmente puede quedar plano, realizando pliegues y cosidos para generar éste. Una realización adicional, se realizar tanto la parte inferior (2) como la boca (3) en plano, de forma que el propio peso de la mercancía cierre el saco (denominado “válvula” en la técnica). Según el tipo de cierre del saco es preferible que la tela (1 ) sea tubular o plana (válvula o fondo plano). The manufacture of the bag starts by mixing polypropylene granules, recycled polymer and calcium carbonate, preferably in nanoparticles. This mixture is made molten. Threads are created from the material thus melted, and it is woven similar to raffia to generate the fabric (1). The fabric (1) is formed into bags, in a similar way to that used in state-of-the-art polypropylene bags. The bottom or bottom part (2) can be sewn with thread, sealed by ultrasound. It can also be left flat, making folds and sewing to generate it. An additional embodiment, both the lower part (2) and the mouth (3) are made flat, so that the weight of the merchandise closes the bag (called “valve” in the art). Depending on the type of closure of the bag, it is preferable that the fabric (1) be tubular or flat (valve or flat bottom).
El saco puede tener plastificar, con una lámina de polipropileno u otro termoplástico, adherido por calor. Igualmente, se puede laminar, en cuyo caso la lámina puede ser del mismo polímero (polipropileno en película cast (polipropileno fundido no orientado), OPP...). El plastificado o laminado puede estar en la cara interior o exterior del saco. Es especialmente interesante realizar el laminado por el interior, lo que permite que el saco sea soldado entre sí para cerrar. Este tipo de laminado o plastificado se realiza mejor en telas (1 ) planas.
The bag may be laminated, with a sheet of polypropylene or another thermoplastic, adhered by heat. Likewise, it can be laminated, in which case the sheet can be made of the same polymer (cast film polypropylene (non-oriented cast polypropylene), OPP...). The lamination or lamination can be on the inside or outside of the bag. It is especially interesting to laminate on the inside, which allows the bag to be welded together to close. This type of lamination or lamination is best done on flat fabrics (1).
Claims
1 Saco ecológico, formado por una tela (1 ) y con una parte inferior (2) cerrada y una boca (3) superior cerrable, caracterizado por que la tela (1 ) está formada por hilos de polipropileno que comprenden un 40-60% en masa de polímero reciclado y 3-15% de carbonato cálcico (CaCO3). 1 Ecological bag, made up of a fabric (1) and with a closed lower part (2) and a closable upper mouth (3), characterized in that the fabric (1) is made up of polypropylene threads that comprise 40-60% by mass of recycled polymer and 3-15% calcium carbonate (CaCO3).
2.- Saco ecológico, según la reivindicación 1 , caracterizado por que el polímero reciclado es polipropileno. 2.- Ecological bag, according to claim 1, characterized in that the recycled polymer is polypropylene.
3.- Saco ecológico, según la reivindicación 1 , caracterizado por que comprende entre 42 y 50% de polímero reciclado. 3.- Ecological bag, according to claim 1, characterized in that it comprises between 42 and 50% recycled polymer.
4.- Saco ecológico, según la reivindicación 1 , caracterizado por que la tela (1 ) es tubular. 4.- Ecological bag, according to claim 1, characterized in that the fabric (1) is tubular.
5.- Saco ecológico, según la reivindicación 1 , caracterizado por que comprende una lámina plástica unida a una cara de la tela (1 ). 5.- Ecological bag, according to claim 1, characterized in that it comprises a plastic sheet attached to one side of the fabric (1).
6.- Saco ecológico, según la reivindicación 5, caracterizado por que la lámina plástica está en la cara interior del saco (1 ). 6.- Ecological bag, according to claim 5, characterized in that the plastic sheet is on the inside of the bag (1).
7.- Saco ecológico, según la reivindicación 6, caracterizado por que la lámina plástica es de polipropileno fundido no orientado en película.
7.- Ecological bag, according to claim 6, characterized in that the plastic sheet is made of molten polypropylene not oriented in film.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES202231113U ES1296050Y (en) | 2022-06-30 | 2022-06-30 | ecological bag |
| ESU202231113 | 2022-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024003426A1 true WO2024003426A1 (en) | 2024-01-04 |
Family
ID=84534584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/ES2023/070352 WO2024003426A1 (en) | 2022-06-30 | 2023-05-29 | Ecological bag |
Country Status (2)
| Country | Link |
|---|---|
| ES (1) | ES1296050Y (en) |
| WO (1) | WO2024003426A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0651140U (en) * | 1992-12-22 | 1994-07-12 | 株式会社細川洋行 | Liquid filling container |
| CN101914240A (en) * | 2010-08-11 | 2010-12-15 | 丁飞鹏 | Regenerated wire drawing modified material of waste polypropylene woven bags and preparation method thereof |
| JP2016052732A (en) * | 2014-09-03 | 2016-04-14 | Dic株式会社 | Multilayer film, and laminate film and packaging material using the same |
| CN105646993A (en) * | 2014-11-17 | 2016-06-08 | 天津华今集团有限公司 | Reinforced and toughened master batch specially used for reclaimed polypropylene woven bags and preparing method thereof |
| CN110217476A (en) * | 2019-05-31 | 2019-09-10 | 应城市新都化工塑业有限公司 | A kind of waterproof and dampproof woven bag and preparation method thereof |
-
2022
- 2022-06-30 ES ES202231113U patent/ES1296050Y/en active Active
-
2023
- 2023-05-29 WO PCT/ES2023/070352 patent/WO2024003426A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0651140U (en) * | 1992-12-22 | 1994-07-12 | 株式会社細川洋行 | Liquid filling container |
| CN101914240A (en) * | 2010-08-11 | 2010-12-15 | 丁飞鹏 | Regenerated wire drawing modified material of waste polypropylene woven bags and preparation method thereof |
| JP2016052732A (en) * | 2014-09-03 | 2016-04-14 | Dic株式会社 | Multilayer film, and laminate film and packaging material using the same |
| CN105646993A (en) * | 2014-11-17 | 2016-06-08 | 天津华今集团有限公司 | Reinforced and toughened master batch specially used for reclaimed polypropylene woven bags and preparing method thereof |
| CN110217476A (en) * | 2019-05-31 | 2019-09-10 | 应城市新都化工塑业有限公司 | A kind of waterproof and dampproof woven bag and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| ES1296050U (en) | 2022-12-28 |
| ES1296050Y (en) | 2023-03-22 |
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