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WO2025171910A1 - Substrat textile à fils structurellement intégrés destructibles pour faciliter la séparation de matériaux - Google Patents

Substrat textile à fils structurellement intégrés destructibles pour faciliter la séparation de matériaux

Info

Publication number
WO2025171910A1
WO2025171910A1 PCT/EP2024/084542 EP2024084542W WO2025171910A1 WO 2025171910 A1 WO2025171910 A1 WO 2025171910A1 EP 2024084542 W EP2024084542 W EP 2024084542W WO 2025171910 A1 WO2025171910 A1 WO 2025171910A1
Authority
WO
WIPO (PCT)
Prior art keywords
threads
textile substrate
material group
materials
destructible
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/EP2024/084542
Other languages
German (de)
English (en)
Inventor
Alfred Baumeler
Maurizio COSATTO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Climatex AG
Original Assignee
Climatex AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Climatex AG filed Critical Climatex AG
Publication of WO2025171910A1 publication Critical patent/WO2025171910A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B93/00—Stitches; Stitch seams
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2305/00—Operations on the work before or after sewing
    • D05D2305/22—Physico-chemical treatments
    • D05D2305/26—Heating
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/02—Moisture-responsive characteristics
    • D10B2401/024—Moisture-responsive characteristics soluble

Definitions

  • the present invention relates to textile substrates, in particular those produced as knitted fabrics using weft and/or warp knitting techniques.
  • the invention further encompasses the use of these textile substrates and methods for processing them.
  • the fields of application of these textile substrates are diverse and include, among others, clothing, interior design, and technical textiles.
  • Knitted fabrics which offer considerable sustainability potential due to their structural properties and their high share in global textile production, are the focus of this invention.
  • the invention presented here therefore aims to use detachable connection technology, also referred to here as a "textile screw,” to create the basis for improved recycling of mixed-material textile knitwear, thus meeting the challenges of current waste management and resource efficiency in the textile industry.
  • the invention presented here paves the way toward a textile circular economy with "design for disassembly.”
  • a textile substrate according to the invention designed as a knitted fabric, produced using weft knitting and/or warp knitting, comprises: first threads, each formed from one or more materials of a first material group; second threads, each formed from one or more materials of a second material group; and third threads, which are made from destructible material of a third material group. group that can be destroyed by a chemical and/or physical process. It is assumed that the first threads and the second threads have different recycling possibilities, or that each material in the first material group has different recycling possibilities compared to each material in the second material group.
  • the textile substrate is designed such that a connection between first threads and second threads is realized in at least one region of the textile substrate, in that at least one of the third threads is arranged in the at least one region of the textile substrate in such a way that the at least one of the third threads spatially connects first threads and second threads in the at least one region, in that the at least one third thread in the at least one region mutually crosses one or more first threads and one or more second threads, so that the connection between the first threads and the second threads in the at least one region is realized exclusively by the at least one of the third threads.
  • the above-mentioned wording “the at least one of the third threads spatially connects first threads and second threads in the at least one region in that the at least one third thread in the at least one region mutually crosses one or more first threads and one or more second threads” is intended to define that the at least one third thread in one section of the at least one region of the textile substrate crosses one or more first threads on one of the two opposite outer sides of the textile substrate and the at least one third thread in another section of the at least one region of the textile substrate crosses one or more second threads on the other of the two opposite outer sides of the textile substrate.
  • connection between the first threads and the second threads in the at least one region is realized exclusively by the at least one of the third threads” means in this context that in the at least one region there is no direct meshing between any of the first threads and any of the second threads.
  • the textile substrate consists of a first material group, for example, made of skin-friendly cotton, which ensures comfort and breathability.
  • the second material group can be made, for example, of a highly elastic polyamide, which offers additional durability and supports the thermoregulating properties of the textile substrate.
  • This exemplary material combination optimizes comfort and functionality.
  • a key feature of the textile substrate is the integration of the third material group, which consists of one or more destructible materials.
  • the third threads formed from one or more materials of this third material group can be destroyed by chemical or physical processes, enabling separation of the various material components—i.e., separation of the first threads from the second threads—after the textile has reached the end of its service life.
  • This targeted destructibility is crucial for recycling and sustainable reuse of the materials, as it allows the textile substrate to be broken down into its individual components—i.e., the respective materials of the first material group and the respective materials of the second material group—at the end of its service life, allowing these to be recycled separately.
  • the special arrangement of the third, destructible material group spatially connects the other two material groups by arranging them on opposite sides of the textile substrate from the perspective of the third, destructible material group. They can, but do not necessarily, lie opposite each other in the planar configuration of the outer surfaces of the textile substrate. This configuration supports the structural integrity of the textile substrate during use and facilitates the separation of the materials after the destruction of the third material group.
  • An expedient embodiment of the invention provides that the first threads and/or the second threads are arranged in a defined pattern that is designed to enable specific functional and/or aesthetic properties of the textile substrate.
  • This design in which the materials of the material groups are arranged in a defined pattern, offers significant advantages. It allows for adaptation to specific functional and aesthetic requirements, which is particularly valuable for sportswear and technical applications.
  • the ordered thread structure facilitates recycling, increasing process efficiency and enabling compliance with environmental standards such as the EU Green Deal and supporting the eco-design guidelines contained therein by laying the foundation for so-called "design for disassembly.”
  • a further particularly expedient embodiment of the present invention may consist in that the destructible material of the third material group consists of a specially formulated polymer that is only destructible by specific factors.
  • This design focuses on destructible materials of natural or synthetic origin in the third material group, which react to specific factors beyond their intended use: e.g., significant temperature changes, exposure to water, pressure, strong radiation, certain chemicals, and/or combinations thereof.
  • the main advantage of this design is their targeted and controlled destructibility, only under specific circumstances, which simplifies the separation and recycling of materials from the first material group and those from the second material group without diminishing the product's utility or damaging the recycled material itself, i.e., the materials from the first material group and/or the second material group.
  • This environmentally conscious solution reduces textile waste and supports sustainable practices in the textile industry, which is consistent with regulatory requirements such as the EU Green Deal.
  • This special combination of the material groups allows for an extended service life of the textile substrate and simultaneously increases efficiency in material recycling.
  • the aforementioned design can also be further optimized in that specially formulated polymers are used as a material of the third material group, which can be actively destroyed by temperature fluctuations within a predefined range, by long-term radiation exposure and/or by persistent high humidity conditions at certain temperatures or by chemical influences such as strongly basic or strongly acidic, alone or in combination with such exposures, e.g. in the future also by industrial composting, specific treatment in a suitable facility such as autoclaves.
  • This further development refines the polymer's destructibility through defined influences, taking into account the most optimal, cost-effective process for targeted destructibility, allowing for highly efficient separation of the material components at the end of the textile substrate's lifespan, supported by environmentally friendly disposal and optimized recycling. Precise control of the decomposition process maximizes the service life of the textile substrate and facilitates resource conservation by making the recycling process more efficient and reducing waste.
  • the textile substrate additionally comprises layers or coatings which are such that they are compatible with the materials of the first, second and third material groups and do not impair their separability and recyclability.
  • Compatibility with the main materials of the substrate is not only related to their usefulness; it also does not impair their separability and recyclability. These layers also effectively protect against water, UV radiation, and microbial damage. This not only increases the service life and functionality of the textile substrate but also supports sustainable recycling processes, thus contributing to reducing environmental impact.
  • the third threads are integrated into the textile substrate in such a way that they are arranged transversely to the second threads and the third threads, and thus support the structural integrity of the textile substrate during use of the textile substrate through their spatial arrangement, wherein the arrangement of the third threads enables easy separation of the first threads from the second threads or easy separation of the materials of the first material group from the materials of the second material group after destruction of the destructible material of the third material group without structural impairment of the first threads and the second threads during a recycling process.
  • This preferred embodiment emphasizes the third threads of the third material group of destructible material in the textile substrate, arranged transversely to the first and second threads, so that these third threads contribute significantly to the structural integrity of the textile substrate.
  • This arrangement supports efficient separation of the materials during recycling, allowing the materials to be separated without structural damage. This facilitates the recycling process and improves sustainability by reusing materials more effectively, consistent with environmentally friendly production practices and regulatory standards.
  • Another preferred embodiment of the textile substrate according to the invention is subjected to a post-treatment, such as calendering or, for example, a silicone coating, to improve physical properties, such as tear resistance, colorfastness, and/or shrink resistance, of the textile substrate without compromising its recyclability.
  • a post-treatment such as calendering or, for example, a silicone coating
  • the core advantage of this embodiment is that it improves the physical properties of the textile substrate without compromising its recyclability. This promotes the production of durable textiles that can still be recycled in an environmentally friendly manner.
  • the third destructible material group attaches itself as a polymer film to the first threads (first material group) and the second threads (second material group) and, in dissolved form, reduces the adhesion in the moist state between the first threads of the first material group and the second threads of the second material group and/or, in the dried state of the form of the textile substrate already separated into materials of the first material group and materials of the second material group, increases the strength of the materials of the first material group and the second material group that are to be recycled in a pure manner.
  • This preferred development of the invention facilitates the separation of the materials of the first and second material groups in the textile substrate without damaging their structural integrity and, at the same time, strengthens the recycled material for subsequent, possibly mechanical, processes.
  • This development of the invention is particularly important for combinations of fiber and material groups with very different mechanical strengths, for example, blends of cashmere and polyamide. While cashmere is very fragile in processing as a recycled material and therefore requires strengthening of the While it is very useful to ensure structural integrity in the separation process by means of the polymer film of the third destroyed material group, a similar coating for polyamide does not interfere with the recycling process, which is completely different for polyamide.
  • the aforementioned development of the invention can preferably be further improved in that the liquor produced by the separation process consists of biodegradable polymers.
  • biodegradable polymers include, for example, polyvinyl alcohol from Kuraray or polylactides, e.g., from Natureworks LTD, and optionally specifically modified polyester types.
  • a method for processing a textile substrate of the above-mentioned type comprises the steps: a) applying a chemical and/or physical method to destroy the destructible material of the third threads, b) mechanically separating the first threads from the second threads without structural impairment of these threads, and c) collecting the separated threads for recycling, whereby the destruction of the destructible material is carried out in such a way that a spatial separation of the first threads from the second threads is enabled by the specific spatial arrangement of the third threads.
  • the method advantageously enables particularly simple separation of the first threads from the second threads, since in the at least one region of the textile substrate according to the invention, a spatial connection between the first threads and the second threads is realized exclusively by the at least one of the third threads and, accordingly, in the at least one region, there is no direct intermeshing between any of the first threads and any of the second threads.
  • the first threads are no longer bound to the second threads and can be easily separated from the second threads in the at least one region by mechanical separation.
  • Figure 1 a plan view of an outer side of a first embodiment of a textile substrate according to the invention, consisting of threads of three materials,
  • Figure 3 a plan view of an outer side of a third embodiment of a textile substrate according to the invention, consisting of threads of three materials,
  • Figure 4 a plan view of an outer side of a fourth embodiment of a textile substrate according to the invention, consisting of threads of three materials,
  • Figure 5 Top views of an outer side of a fifth embodiment of a textile substrate according to the invention (left half), consisting of threads of three materials, as well as the view after destroying and removing the third threads made of a destructible material from the third material group (right half).
  • Figure 7 Top views of an outer side of a seventh embodiment of a textile substrate according to the invention (left half), consisting of threads of three materials, as well as the view after destroying and removing the third threads made of a destructible material of the third material group (right half).
  • Figure 1 presents a "float" type knitting pattern, where the visible outer side is defined as the front side of the textile substrate 1 and the invisible, opposite outer side as the back side.
  • This illustration demonstrates the arrangement with first threads 2, second threads 3, and third threads 4 from three different material groups, which are strategically placed to create a structure that meets the specific requirements of this invention.
  • the first threads 2 made of one or more (first) materials 20 of a first material group are shown on the front side of the textile substrate 1 without any filling, whereby they appear as white threads.
  • the second threads 3 made of one or more (second) materials 30 of a second material group are visualized by a black hatched pattern and positioned in the center plane.
  • the third threads 4 made of a destructible material 40 from a third material group consisting of destructible materials are shown with complete gray filling and arranged such that they encompass the front and back sides of the textile substrate 1 and thus connect the first threads 2 of the first material group with the second threads 3 of the second material group.
  • first threads 2 and the second threads 3 can be recycled differently and that the destructible material 40 of the third material group is chemical and/or physical processes without structurally impairing the first threads 2 and the second threads 4 by the chemical and/or physical process.
  • a connection between first threads 2 and second threads 3 is realized in that at least one of the third threads 4 is arranged in the at least one region B of the textile substrate 1 in such a way that the at least one of the third threads 4 spatially connects first threads 2 and second threads 3 in the at least one region B, in that the at least one third thread 4 in the at least one region B mutually crosses one or more first threads 2 and one or more second threads 3, so that the connection between the first threads 2 and the second threads 3 in the at least one region B is realized exclusively by the at least one of the third threads 4.
  • the third threads 4 of the third material group that play a crucial functional role. They spatially connect the first threads 2 of the first material group with the second threads 3 of the second material group, without any intermeshing between the first threads 2 of the first material group and the second threads 3 of the second material group.
  • This special arrangement ensures that the first threads 2 of the first material group and the second threads 3 of the second material group remain physically separate, which simplifies their individual separation and recycling after the destruction of the third threads 4 of the third material group.
  • Figure 2 illustrates a textile substrate 1 produced using the "spacer" knitting technique.
  • This technique enables the creation of a three-dimensional textile with a defined spatial structure, resulting in increased thickness and improved thermal and acoustic insulation properties.
  • the textile substrate again consists of three thread groups made of different materials 20, 30, 40.
  • the first group of first threads 2 made of a first material 20 of a first material group and the second group of second threads 3 made of a second material 30 of a second material group are configured to form specific patterns or structures that are aligned to specific functional or aesthetic requirements.
  • a connection between first threads 2 and second threads 3 is realized in that at least one of the third threads 4 is arranged in the at least one region B of the textile substrate 1 such that the at least one of the third threads 4 spatially connects first threads 2 and second threads 3 in the at least one region B, in that the at least one third thread 4 in the at least one region B mutually crosses one or more first threads 2 and one or more second threads 3, so that the connection between the first threads 2 and the second threads 3 in the at least one region B is realized exclusively by the at least one of the third threads 4.
  • the third threads 4 of the third material group are integrated into the textile substrate 1 such that they are arranged transversely to the threads 2, 3 of the first and second material groups. This supports the structural integrity of the textile substrate 1 and enables uncomplicated separation of the materials 20, 30 without structural impairment of the first threads 2 and the second threads 3 during a recycling process.
  • the first group of first threads 2 consists of a first material 20 of a first material group and appears in Figure 3 as white threads without filling. These first threads 2 form the basis of the textile substrate 1 and have been selected for their properties such as strength, flexibility, and colorfastness, which makes them particularly suitable for the basic structure of the knitted fabric.
  • a connection between first threads 2 and second threads 3 is realized in that at least one of the third threads 4 is arranged in the at least one region B of the textile substrate 1 such that the at least one of the third threads 4 spatially connects first threads 2 and second threads 3 in the at least one region B, in that the at least one third thread 4 in the at least one region B mutually crosses one or more first threads 2 and one or more second threads 3, so that the connection between the first threads 2 and the second threads 3 in the at least one region B is realized exclusively by the at least one of the third threads 4.
  • Figure 3 demonstrates a well-thought-out combination of materials 20, 30, 40 and knitting techniques, aiming to create a highly functional textile that is both aesthetically pleasing and environmentally friendly.
  • destructible material 40 in a key position underscores the commitment to sustainable production practices by facilitating the subsequent separation and recycling of the materials 20, 30.
  • Figure 4 shows a textile substrate 1 produced using the "sweat" weft knitting technique, using different threads 2, 3, 4 made of at least three different materials 20, 30, 40.
  • These threads 2, 3, 4 comprise a first group of first threads 2 made of a first material 20 of a first material group, a second group of second threads 3 made of a second material 30 of a second material group, and a third group of third threads 4 made of a destructible material 40 of a third material group.
  • the destructible material 30, or every third thread 4 serves as a "textile screw” to hold the other threads 2, 3 together.
  • the destructible material 40 of the third material group is designed to be destroyed by specific chemical and/or physical processes, enabling the separation and recycling of the materials 20, 30 of the first and second material groups.
  • the third threads 4 of the third material group are arranged in a defined area of the textile substrate 1 such that they spatially connect the threads 2, 3 of the first and second material groups without intermeshing between the first threads 2 and the third threads 3. This enables structural integrity of the textile substrate 1 while ensuring easy separation of the materials 20, 30 during a recycling process.
  • the 'Sweaf' technique illustrated in Figure 4 creates a structure suitable for clothing, interior design, and technical applications where subsequent separation and recycling of material components is required.
  • the specific arrangement and selection of materials 20, 30, 40 are designed to optimize the functional and aesthetic properties of the textile substrate 1 while enabling circular material flows through separability.
  • Figure 5 demonstrates a warp-knitted fabric.
  • the left half of Figure 5 illustrates a textile substrate 1 composed of threads of two different materials 20, 30, and the connection by the third destructible material 40.
  • the first threads 2 of the first material 20 of a first material group and the third threads 4 of the destructible third material 40 of a third material group use the warp knitting technique and are connected to each other via knitted stitches.
  • Second threads 3 of the second material 30 of a second material group are integrated between these threads 2, 4 in the weft direction.
  • a third thread 4 of the destructible third material 40 (“textile screw”) connects two adjacent stitches of the first material 20, creating a robust connection between the materials 20, 30 and reinforcing the structural integrity of the warp-knitted fabric.
  • This configuration supports the later separation and recycling of the materials 20, 30, as it allows for easy separation of the threads 2, 3 of the first and second materials 20, 30 after the destructible material 40 has been destroyed.
  • a connection between first threads 2 and second threads 3 is realized in that at least one of the third threads 4 is arranged in the at least one region B of the textile substrate 1 such that the at least one of the third threads 4 spatially connects first threads 2 and second threads 3 in the at least one region B, in that the at least one third thread 4 in the at least one region B mutually crosses one or more first threads 2 and one or more second threads 3, so that the connection between the first threads 2 and the second threads 3 in the at least one region B is realized exclusively by the at least one of the third threads 4.
  • the right half of Figure 5 shows materials 20, 30 after removal of material 40 and illustrates the design for disassembly.
  • Figure 6 illustrates a biaxial warp knit fabric, which is also characterized by the use of a destructible material 40 from a third material group, referred to here as a "textile screw.”
  • the left illustration demonstrates the use of the "textile screw,” which also binds the first threads 2 of the first material 20 of a first material group in the warp direction. Between these stitches, which are formed between the first threads 2 of the first material group and third threads 4 of the destructible material 40 of the third material group, second threads 3 of the second material 30 of a second material group are incorporated in the weft direction.
  • a connection between first threads 2 and second threads 3 is realized in that at least one of the third threads 4 is arranged in the at least one region B of the textile substrate 1 such that the at least one of the third threads 4 spatially connects first threads 2 and second threads 3 in the at least one region B, in that the at least one third thread 4 in the at least one region B mutually crosses one or more first threads 2 and one or more second threads 3, so that the connection between the first threads 2 and the second threads 3 in the at least one region B is realized exclusively by the at least one of the third threads 4.
  • Figure 7 also presents a warp-knitted fabric characterized by the use of a destructible material 40 as a structure-influencing element.
  • This "textile screw" serves in the left illustration as a connecting link between first threads 2 made of a first material 20 of a first material group and second threads 3 made of a second Material 30 of a second material group.
  • the first threads 2 of the first material 20 run in the warp direction and are connected by knitting with third threads 4 of the destructible material 40 via specially created stitches.
  • Interspersed between them in the weft direction are second threads 3 of the second material 30, which allow for easy separation of the materials 20, 30 after the destruction of the third material 40.
  • This structure is designed to enable uncomplicated separation of the materials 20, 30 after use, which represents an important requirement for recycling processes.
  • a connection between first threads 2 and second threads 3 is realized in that at least one of the third threads 4 is arranged in the at least one region B of the textile substrate 1 such that the at least one of the third threads 4 spatially connects first threads 2 and second threads 3 in the at least one region B, in that the at least one third thread 4 in the at least one region B mutually crosses one or more first threads 2 and one or more second threads 3, so that the connection between the first threads 2 and the second threads 3 in the at least one region B is realized exclusively by the at least one of the third threads 4.
  • Figures 1-7 include coatings not shown in the textile substrate 1 that are compatible with materials 20, 30, and 40 and provide specific physical barriers against water, UV radiation, and microbial attack. These treatments improve physical properties such as tear strength and shrink resistance.
  • the coatings and treatments applied to the textile substrate 1 are compatible with the materials of the three thread or material groups and do not impair their separability or recyclability.
  • the innovative integration of the "textile screw” into the textile substrate 1, consisting of materials 20, 30, and 40 offers both functional and ecological advantages. Functionally, the targeted arrangement of these materials—where the first material 20 (e.g., cotton) is placed closer to the body due to its skin-friendly properties, and the second material 30 (e.g., polyamide) is placed on the outer side facing away from the body—enables optimal use of the textile properties.
  • the invention enables clean separation of materials 20 and 30 at the end of their life cycle, thus enabling efficient recycling.
  • the economically attractive revenue stream created by clean separation significantly improves the product's sustainability.
  • the destruction of the thread system of the "textile screw” results in a significant reduction in thread density in the remaining materials and surfaces, even allowing the recycling of individual threads (2, 3). This reduced density facilitates subsequent processing of the materials to be recycled (20, 30), such as tearing and carding, for the production of new yarns. Short fiber content is reduced, and the quality and quantity of recycled fibers increases.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Of Fabric (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

Le substrat textile nouvellement développé (1) est constitué de trois groupes de matériaux et est produit au moyen d'une technique de tricotage trame et/ou chaîne. Des premiers fils (2) sont constitués d'un ou de plusieurs premiers matériaux (par exemple respectueux de la peau) (20) d'un premier groupe de matériaux, des deuxièmes fils (3) consistent en un ou plusieurs deuxièmes matériaux (par exemple robustes) (30) d'un deuxième groupe de matériaux, et des troisièmes fils (4) consistent en un matériau destructible (40) d'un troisième groupe de matériaux, qui forme une "vis textile". Cette composition unique permet une séparation efficace et respectueuse de l'environnement des premiers matériaux (20) du premier groupe de matériaux à partir des seconds matériaux (30) du second groupe de matériaux à la fin de la durée de vie du substrat textile (1), ce qui facilite le recyclage. Les zones d'application de cette innovation sont, entre autres, des vêtements, des accessoires intérieurs et des textiles techniques qui apportent une contribution, par recyclage, à la protection de l'environnement et à des normes de réunion telles que le pacte vert pour l'Europe.
PCT/EP2024/084542 2024-02-13 2024-12-03 Substrat textile à fils structurellement intégrés destructibles pour faciliter la séparation de matériaux Pending WO2025171910A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202463552696P 2024-02-13 2024-02-13
US63/552,696 2024-02-13

Publications (1)

Publication Number Publication Date
WO2025171910A1 true WO2025171910A1 (fr) 2025-08-21

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PCT/EP2024/084542 Pending WO2025171910A1 (fr) 2024-02-13 2024-12-03 Substrat textile à fils structurellement intégrés destructibles pour faciliter la séparation de matériaux
PCT/EP2025/053322 Pending WO2025172194A1 (fr) 2024-02-13 2025-02-07 Structure de couture, structure de liaison, procédé de séparation d'une structure de couture, utilisation d'un dispositif d'ébullition sous pression pour séparer une structure de couture

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PCT/EP2025/053322 Pending WO2025172194A1 (fr) 2024-02-13 2025-02-07 Structure de couture, structure de liaison, procédé de séparation d'une structure de couture, utilisation d'un dispositif d'ébullition sous pression pour séparer une structure de couture

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WO (2) WO2025171910A1 (fr)

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JPH0881811A (ja) 1994-09-14 1996-03-26 Katakura Kogyo Kk 可溶性繊維糸による構成部分を一部に有する衣類
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EP2532775B1 (fr) 2011-06-07 2013-07-24 Gessner AG Substrat textile constitué de plusieurs matériaux jetables et/ou utilisables différents, utilisation d'un tel substrat textile et procédé de préparation d'un tel substrat textile

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JP7190714B2 (ja) * 2021-02-18 2022-12-16 東和株式会社 再生羽毛生産方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3413700A (en) * 1966-12-19 1968-12-03 Abowitz Alexander Fabric unraveling machine
EP0300253A2 (fr) * 1987-07-21 1989-01-25 SIPRA Patententwicklungs- und Beteiligungsgesellschaft mbH Procédé de fabrication d'articles tubulaires avec des parties tubulaires séparables et métier à tricoter circulaire pour sa mise en oeuvre
JPH0881811A (ja) 1994-09-14 1996-03-26 Katakura Kogyo Kk 可溶性繊維糸による構成部分を一部に有する衣類
AT508899A4 (de) * 2010-04-06 2011-05-15 Wolford Ag Verfahren zur herstellung eines löcher aufweisenden gestricks
EP2532775B1 (fr) 2011-06-07 2013-07-24 Gessner AG Substrat textile constitué de plusieurs matériaux jetables et/ou utilisables différents, utilisation d'un tel substrat textile et procédé de préparation d'un tel substrat textile

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