WO2020039225A1 - FIBREGLASS SCRIM FABRIC MESH WITH IMPROVED PROPERTIES OF RESISTANCE TO BREAKAGE AND TEARING, USED AS A BACKING FOR CORE MATERIALS USED IN SANDWICH COMPOSITE MATERIALS<i /><i /> - Google Patents

FIBREGLASS SCRIM FABRIC MESH WITH IMPROVED PROPERTIES OF RESISTANCE TO BREAKAGE AND TEARING, USED AS A BACKING FOR CORE MATERIALS USED IN SANDWICH COMPOSITE MATERIALS<i /><i /> Download PDF

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Publication number
WO2020039225A1
WO2020039225A1 PCT/IB2018/056257 IB2018056257W WO2020039225A1 WO 2020039225 A1 WO2020039225 A1 WO 2020039225A1 IB 2018056257 W IB2018056257 W IB 2018056257W WO 2020039225 A1 WO2020039225 A1 WO 2020039225A1
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WO
WIPO (PCT)
Prior art keywords
scrim
mesh
resistance
backing
core material
Prior art date
Application number
PCT/IB2018/056257
Other languages
Spanish (es)
French (fr)
Inventor
Nicolás COSTA ARCENTALES
Original Assignee
Poligrup S.A.
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 Poligrup S.A. filed Critical Poligrup S.A.
Priority to PCT/IB2018/056257 priority Critical patent/WO2020039225A1/en
Publication of WO2020039225A1 publication Critical patent/WO2020039225A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/04—Layered products comprising a layer of synthetic resin as impregnant, bonding, or embedding substance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/16—Yarns or threads made from mineral substances
    • D02G3/18—Yarns or threads made from mineral substances from glass or the like
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used

Definitions

  • the present invention relates to the technical sector of woven meshes.
  • the present invention consists of low weight woven mesh (known in English as scrim) consisting of fiberglass threads, used as a backing for core materials (known in English as core materials) used in turn in composite materials of type structure sandwich (known in English as sandwich-structured composite materials), and characterized by the use of higher-grade fiberglass yarn (i.e., linear weight) to provide greater mechanical resistance per wire, and for improved resistance to the rupture in both directions, but especially in the transverse or plot, which directly contributes to the problem of scrim tears during handling by the users of the flexible panel.
  • scrim low weight woven mesh
  • core materials known in English as core materials
  • composite materials of type structure sandwich known in English as sandwich-structured composite materials
  • Composite sandwich structure materials are an element commonly used in mobile structures and / or components to reduce the amount of energy required to operate or move. Examples of this type are found in airplanes and maritime vessels, where components made of composite materials allow to alleviate the entire structure and reduce fuel consumption. There is also the case of wind turbine blades, which can be considered a large structure made of composite materials, thanks to which in recent years lengths greater than the wingspan of commercial aircraft have been achieved, maintaining a light weight that allows the wind turbine to rotate at a wider range of wind speeds, which includes low speeds.
  • the core material (1), or core material as it is called in English is the main component of composite sandwich structure materials (4), or sandwich-structured composite material as it is known in English.
  • These materials are on the market in the form of rigid or flexible panels, and the most common options of materials are balsa wood, and foamed PET and PVC.
  • these flexible panels are in dimensions of 61 Omm x 1, 220mm (approximately 24 ”x 48”) and the thickness varies according to the user's needs, usually in a range of 6 to 50 mm (1 ⁇ 2 ”to 2” ).
  • a new scrim mesh design (5) is presented to solve a recurring problem reported by the end users of the flexible panels (7), where they indicate that the mesh tends to break during the usual handling of the panel throughout the production process of the sandwich structure pieces (4). This situation has been reported particularly in panels with thicknesses above 38 mm (1-1 ⁇ 2 ”), which are of higher consumption.
  • the composite material (4) is obtained.
  • a standard scrim mesh (5) manufactured by ios is used by a textile process, and is composed of continuous fiberglass filament yarns and covered by a polymeric sizing that allows optimum lamination rigid core material panel (1).
  • the general specifications of this mesh appear in table 1.
  • the glue that is used for the lamination of the mesh (5) is of a similar nature and compatible with the non-polymeric sizing it carries, and its interaction with the mesh (5 ) grants tear resistance between mesh (5) and core material (1) necessary for the flexible panel (7) to resist the handling to which it is subjected in subsequent processes such as the preparation of the kit of parts that will be placed in the mold Infusion

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention relates to a new scrim mesh (5) having a plain-weave construction (also known as taffeta), the same as standard scrim<i /> <i />. Like any fabric made in a loom, the warp threads (9), which run in the direction of the production of the loom, must be interlaced with the weft threads (10), which are inserted crosswise into the shed created by the loom. The difference in the new scrim is the use of fibreglass threads of a higher count (that is, linear weight) to provide greater mechanical strength per thread while reducing the density of the fabric so that there is not a significant increase in weight<i />.

Description

Malla tejidas tipo scrím de fibra de vidrio con mejoras en propiedades de resistencia a la ruptura y al desgarre utilizadas como respaldo para materiales de núcleo (o core material) utilizados en materiales compuestos de estructura tipo sándwich  Fiberglass scrim woven mesh with improvements in tear and tear resistance properties used as backing for core materials (or core material) used in composite sandwich structure materials
La presente invención se refiere al sector técnico de las mallas tejidas.  The present invention relates to the technical sector of woven meshes.
DESCRIPCIÓN DESCRIPTION
La presente invención consiste en malla tejida de bajo peso (conocida en inglés como scrim) constituida de hilos de fibra de vidrio, utilizada como respaldo para materiales de núcleo (conocidos en inglés como core materials) utilizados a su vez en materiales compuestos de estructura tipo sándwich (conocidos en inglés como sandwich- structured composite materials), y caracterizada por la utilización de hilados fibra de vidrio de mayor título (es decir, peso lineal) para aportar con mayor resistencia mecánica por hilo, y por una mejora en la resistencia a la ruptura en ambas direcciones, pero especialmente en la transversal o trama, lo cual aporta directamente al problema de roturas en el scrim durante el manipuleo por los usuarios del panel flexible. The present invention consists of low weight woven mesh (known in English as scrim) consisting of fiberglass threads, used as a backing for core materials (known in English as core materials) used in turn in composite materials of type structure sandwich (known in English as sandwich-structured composite materials), and characterized by the use of higher-grade fiberglass yarn (i.e., linear weight) to provide greater mechanical resistance per wire, and for improved resistance to the rupture in both directions, but especially in the transverse or plot, which directly contributes to the problem of scrim tears during handling by the users of the flexible panel.
Antecedentes de la invención Background of the invention
Los materiales compuestos de estructura tipo sándwich son un elemento comúnmente utilizado en estructuras y/o componentes móviles para reducir la cantidad de energía que requieren para operar o movilizarse. Ejemplos de este tipo se encuentran en aviones y embarcaciones marítimas, en donde componentes hechos de materiales compuestos permiten alivianar toda la estructura y reducir consumo de combustible. También está el caso de las palas de los aerogeneradores eólicos, las cuales se pueden considerar una gran estructura hecha a base de materiales compuestos, gracias a los cuales en los últimos años se han logrado longitudes superiores a la envergadura de alas de aviones comerciales, manteniendo un peso liviano que permite rotar al aerogenerador a un más amplio rango de velocidades de viento, que incluye velocidades bajas. El material de núcleo (1 ), o core material como se lo llama en inglés, es el componente principal de los materiales compuestos de estructura tipo sándwich (4), o sandwich-structured composite material como se lo conoce en inglés.Composite sandwich structure materials are an element commonly used in mobile structures and / or components to reduce the amount of energy required to operate or move. Examples of this type are found in airplanes and maritime vessels, where components made of composite materials allow to alleviate the entire structure and reduce fuel consumption. There is also the case of wind turbine blades, which can be considered a large structure made of composite materials, thanks to which in recent years lengths greater than the wingspan of commercial aircraft have been achieved, maintaining a light weight that allows the wind turbine to rotate at a wider range of wind speeds, which includes low speeds. The core material (1), or core material as it is called in English, is the main component of composite sandwich structure materials (4), or sandwich-structured composite material as it is known in English.
Estos materiales se encuentran en el mercado en forma de paneles rígidos o flexibles, y las opciones más comunes de materiales son la madera de balsa, y espumados de PET y PVC. Generalmente estos paneles flexibles se encuentran en dimensiones de 61 Omm x 1 ,220mm (aproximadamente 24” x 48”) y el espesor varía de acuerdo a las necesidades del usuario, habitualmente en un rango de 6 a 50 mm (½” a 2”). These materials are on the market in the form of rigid or flexible panels, and the most common options of materials are balsa wood, and foamed PET and PVC. Generally these flexible panels are in dimensions of 61 Omm x 1, 220mm (approximately 24 ”x 48”) and the thickness varies according to the user's needs, usually in a range of 6 to 50 mm (½ ”to 2” ).
Se presenta un nuevo diseño de malla scrim (5) para resolver un problema recurrente reportado por los usuarios finales de los paneles flexibles (7), en donde indican que la malla suele romperse durante al manipuleo habitual del panel a lo largo del proceso de producción de las piezas de estructura tipo sándwich (4). Esta situación ha sido reportada particularmente en los paneles con espesor por encima de 38 mm (1-½”), los cuales son de mayor consumo. A new scrim mesh design (5) is presented to solve a recurring problem reported by the end users of the flexible panels (7), where they indicate that the mesh tends to break during the usual handling of the panel throughout the production process of the sandwich structure pieces (4). This situation has been reported particularly in panels with thicknesses above 38 mm (1-½ ”), which are of higher consumption.
Luego de realizar ensayos de laboratorio y comparar el scrim estándar (101) y el nuevo (306), se encontró una mejora en la resistencia a la ruptura en ambas direcciones, pero especialmente en la transversal o trama, donde mejora en un 45%. Esto aporta directamente al problema de roturas en el scrim (5) durante el manipuleo por los usuarios del panel flexible (7). Adicionalmente se demostró con ensayos de resistencia al desgarre que también aumenta esta propiedad en al menos un 40% en comparación a la malla 101. Si bien el desempeño en la resistencia al desgarre de la 101 no es un problema en la actualidad, los resultados logrados con la 306 la preparan para aplicaciones futuras que demanden mayor desempeño. After performing laboratory tests and comparing the standard scrim (101) and the new one (306), an improvement in the resistance to rupture was found in both directions, but especially in the transverse or plot, where it improves by 45%. This directly contributes to the problem of breaks in the scrim (5) during handling by the users of the flexible panel (7). Additionally, it was demonstrated with tear resistance tests that this property also increases by at least 40% compared to 101 mesh. Although the tear resistance performance of 101 is not a problem at present, the results achieved with 306 they prepare it for future applications that demand greater performance.
Breve descripción de los dibujos Brief description of the drawings
Fig. 1 - Composición típica de composite de estructura tipo sándwich Fig. 2 - Composición típica de material de núcleo (core) con scrim Fig. 1 - Typical composite composition of sandwich structure Fig. 2 - Typical composition of core material with scrim
Fig. 3 - Panel flexible Fig. 4 - Tejido tipo Tafetán Fig. 3 - Flexible panel Fig. 4 - Taffeta type fabric
Descripción detallada de los dibujos Detailed description of the drawings
Combinando el material core (1 ) con tejidos (2) fabricados con fibras técnicas como las de carbono o vidrio, y con resinas (3) tipo epoxi o poliéster, se obtiene el material compuesto (4). By combining the core material (1) with fabrics (2) made of technical fibers such as carbon or glass, and with resins (3) epoxy or polyester type, the composite material (4) is obtained.
Para poder obtener un panel flexible (7), es necesario adherir mediante un proceso de laminación una malla flexible (5) al panel rígido de material core (1 ), utilizando una cola de base polimérica para asegurar una correcta adhesión, y luego pasando el panel con malla (6) por un proceso de sacado. Es importante indicar el tipo malla (5) que se utiliza es conocida en inglés como scrim, debido a su peso por área muy ligero, y que en esta aplicación no supera los 100 g/m2 (~3 oz/yd2). In order to obtain a flexible panel (7), it is necessary to adhere a flexible mesh (5) to the rigid panel of core material (1) by means of lamination, using a polymer-based glue to ensure correct adhesion, and then passing the Mesh panel (6) by a removal process. It is important to indicate the type mesh (5) that is used is known in English as scrim, due to its weight per very light area, and that in this application it does not exceed 100 g / m 2 (~ 3 oz / yd 2 ).
Luego del proceso de laminación se realizan cortes longitudinales y transversales al panel rígido (1 ) en el lado que no tiene malla scrim (5), de tal manera que quedan pequeños bloques (8) que se mantienen únicamente en forma de panel gracias a la malla scrim (5). Al observar el panel flexible (7) por el lado que se realizaron los cortes, da la apariencia de haber sido cortado en mosaicos rectangulares o teselas. En otras palabras, la malla scrim (5) funciona como una especie de respaldo para mantener los bloques (8) siendo parte de un mismo cuerpo que sería el panel flexible (7). Este proceso de fabricación de paneles flexibles es ya conocido en el medio, y se lo aplica tanto para materiales de núcleo de madera de balsa y de plástico (PET y PVC). After the lamination process, longitudinal and transverse cuts are made to the rigid panel (1) on the side that does not have scrim mesh (5), so that small blocks (8) remain that are only kept in the form of a panel thanks to the scrim mesh (5). When observing the flexible panel (7) on the side that the cuts were made, it appears to have been cut into rectangular mosaics or tiles. In other words, the scrim mesh (5) works as a kind of backup to keep the blocks (8) being part of the same body that would be the flexible panel (7). This flexible panel manufacturing process is already known in the middle, and is applied to both balsa wood and plastic core materials (PET and PVC).
El propósito de convertir un panel rígido en flexible (7) es para que el material core (1 ) se adapte sobre en superficies curveadas y/o irregulares, muy comunes en los moldes utilizados para fabricar componentes estructurales hechos aplicando el concepto de materiales compuestos de estructura tipo sándwich (4) mediante un proceso infusión de resinas (3). Estos paneles flexibles (7) son loo utilizados en diversos campos donde se requieren componentes de bajo peso, pero con exigencias de resistencia mecánica para que no fallen durante su funcionamiento. The purpose of converting a rigid panel into flexible (7) is so that the core material (1) fits on curved and / or irregular surfaces, very common in the molds used to make structural components made applying the concept of composite materials of sandwich structure (4) through a resin infusion process (3). These flexible panels (7) are used in various fields where low weight components are required, but with mechanical resistance requirements so that they do not fail during operation.
Para fabricar el panel flexible (7), se utiliza una malla scrim estándar (5) fabricada ios por un proceso textil, y está compuesta de hilados de filamentos continuos de fibra de vidrio y recubierta por un apresto polimérico que permite una óptima laminación con el panel rígido de material core (1 ). Las especificaciones generales de esta malla aparecen en la tabla 1. La cola que se utiliza para la laminación de la malla (5) es de una naturaleza similar y compatible con el no apresto polimérico que ésta lleva, y su interacción con la malla (5) otorga la resistencia al desgarre entre malla (5) y material core (1) necesarias para que el panel flexible (7) resista el manipuleo al que está sujeto en los procesos posteriores como la preparación del kit de piezas que se colocarán en el molde de infusión. To manufacture the flexible panel (7), a standard scrim mesh (5) manufactured by ios is used by a textile process, and is composed of continuous fiberglass filament yarns and covered by a polymeric sizing that allows optimum lamination rigid core material panel (1). The general specifications of this mesh appear in table 1. The glue that is used for the lamination of the mesh (5) is of a similar nature and compatible with the non-polymeric sizing it carries, and its interaction with the mesh (5 ) grants tear resistance between mesh (5) and core material (1) necessary for the flexible panel (7) to resist the handling to which it is subjected in subsequent processes such as the preparation of the kit of parts that will be placed in the mold Infusion
115  115
Figure imgf000005_0001
Figure imgf000005_0001

Claims

R E I V I N D I C A C I O N E S
1. -Diseño de malla scrim (5) caracterizada por la utilización de hilados fibra de vidrio de mayor título (es decir, peso lineal) para aportar con mayor resistencia mecánica por hilo. 1.-Scrim mesh design (5) characterized by the use of higher-grade fiberglass yarn (ie, linear weight) to provide greater mechanical resistance per wire.
2. -Diseño de malla scrim (5) según reivindicación 1 , caracterizada por estar compuesta de hilados de filamentos continuos de fibra de vidrio y recubierta por un apresto polimérico que permite una óptima laminación con el panel rígido de material core (1 ). 2.-Scrim mesh design (5) according to claim 1, characterized in that it is composed of continuous fiberglass filament yarns and covered by a polymeric sizing that allows optimum lamination with the rigid core material panel (1).
3. -Diseño de malla scrim (5) según reivindicación 2, carcaterizada por tener una cola que se utiliza para la laminación de la malla (5) que es de una naturaleza similar y compatible con el apresto polimérico que ésta lleva, y su interacción con la malla (5) otorga la resistencia al desgarre entre malla (5) y material core (1 ) necesarias para que el panel flexible (7) resista el manipuleo al que está sujeto en los procesos posteriores como la preparación del kit de piezas que se colocarán en el molde de infusión. 3. Scrim mesh design (5) according to claim 2, characterized by having a glue that is used for laminating the mesh (5) that is of a similar nature and compatible with the polymeric sizing it carries, and its interaction with the mesh (5) it grants the tear resistance between mesh (5) and core material (1) necessary for the flexible panel (7) to resist the handling to which it is subjected in subsequent processes such as the preparation of the kit of parts that They will be placed in the infusion mold.
4.-Diseño de malla scrim (5) según reivindicación 3, caracterizada por una reducción en la densidad del tejido para que no haya un aumento significativo de peso.  4. Scrim mesh design (5) according to claim 3, characterized by a reduction in tissue density so that there is no significant increase in weight.
5. -Diseño de malla scrim (5) según reivindicación 4, caracterizado por una mejora en la resistencia a la ruptura en ambas direcciones, pero especialmente en la transversal o trama, lo cual aporta directamente al problema de roturas en el scrim (5) durante el manipuleo por los usuarios del panel flexible (7). 5. Scrim mesh design (5) according to claim 4, characterized by an improvement in the resistance to rupture in both directions, but especially in the transverse or weft, which directly contributes to the problem of scrim breaks (5) during handling by users of the flexible panel (7).
PCT/IB2018/056257 2018-08-18 2018-08-18 FIBREGLASS SCRIM FABRIC MESH WITH IMPROVED PROPERTIES OF RESISTANCE TO BREAKAGE AND TEARING, USED AS A BACKING FOR CORE MATERIALS USED IN SANDWICH COMPOSITE MATERIALS<i /><i /> WO2020039225A1 (en)

Priority Applications (1)

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PCT/IB2018/056257 WO2020039225A1 (en) 2018-08-18 2018-08-18 FIBREGLASS SCRIM FABRIC MESH WITH IMPROVED PROPERTIES OF RESISTANCE TO BREAKAGE AND TEARING, USED AS A BACKING FOR CORE MATERIALS USED IN SANDWICH COMPOSITE MATERIALS<i /><i />

Applications Claiming Priority (1)

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PCT/IB2018/056257 WO2020039225A1 (en) 2018-08-18 2018-08-18 FIBREGLASS SCRIM FABRIC MESH WITH IMPROVED PROPERTIES OF RESISTANCE TO BREAKAGE AND TEARING, USED AS A BACKING FOR CORE MATERIALS USED IN SANDWICH COMPOSITE MATERIALS<i /><i />

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5763043A (en) * 1990-07-05 1998-06-09 Bay Mills Limited Open grid fabric for reinforcing wall systems, wall segment product and methods of making same
WO2007109100A2 (en) * 2006-03-16 2007-09-27 Masanori Kubota Multifunctional composites
US20120148806A1 (en) * 2010-12-10 2012-06-14 United States Gypsum Company Fiberglass mesh scrim reinforced cementitious board system
WO2013126739A1 (en) * 2012-02-23 2013-08-29 E. I. Du Pont De Nemours And Company A fiber-resin composite sheet and article comprising the same
US20160254404A1 (en) * 2013-10-17 2016-09-01 Das Energy Gmbh Photovoltaic panel and method for producing same
KR20170024249A (en) * 2015-08-25 2017-03-07 (주)엘지하우시스 A flooring materials for ship and the manufacturing method thereof
EP2560911B1 (en) * 2010-04-22 2017-06-21 ThyssenKrupp Elevator AG Elevator suspension and transmission strip

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5763043A (en) * 1990-07-05 1998-06-09 Bay Mills Limited Open grid fabric for reinforcing wall systems, wall segment product and methods of making same
WO2007109100A2 (en) * 2006-03-16 2007-09-27 Masanori Kubota Multifunctional composites
EP2560911B1 (en) * 2010-04-22 2017-06-21 ThyssenKrupp Elevator AG Elevator suspension and transmission strip
US20120148806A1 (en) * 2010-12-10 2012-06-14 United States Gypsum Company Fiberglass mesh scrim reinforced cementitious board system
WO2013126739A1 (en) * 2012-02-23 2013-08-29 E. I. Du Pont De Nemours And Company A fiber-resin composite sheet and article comprising the same
US20160254404A1 (en) * 2013-10-17 2016-09-01 Das Energy Gmbh Photovoltaic panel and method for producing same
KR20170024249A (en) * 2015-08-25 2017-03-07 (주)엘지하우시스 A flooring materials for ship and the manufacturing method thereof

Non-Patent Citations (2)

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Title
DUHOVIC, M ET AL.: "Knitted fabric composites", ADVANCES IN KNITTING TECHNOLOGY, 2011, pages 193 - 212, Retrieved from the Internet <URL:https://doi.org/10.1533/9780857090621.2.193> *
HIGH-PERFORMANCE SCRIMS FOR THE PRODUCTS OF TOMORROW, 2 May 2019 (2019-05-02), Retrieved from the Internet <URL:http://www.adfors.com/eu/sites/default/files/Industrial%20fabrics/Laid-Scrim-Brochure_3.pdf> *

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