Compounding means that two or more materials are bonded together through chemical or physical methods (such as glue or high temperature). Non-woven fabric is a variety title, there are many kinds. It is the diversity of non-woven fabrics that makes the foundation of the compound. Therefore, the composite non-woven fabric is a composite of different types of non-woven fabrics or a composite of non-woven fabrics and other materials.
By compounding various materials, they can maximize each other's strengths and avoid weaknesses in function, so that the inductive function of the composite non-woven fabric is better than the original constituent materials and satisfy various different needs.
Next, introduce the types of non-woven fabrics: needle punched non-woven fabrics, spunlace non-woven fabrics, spunbonded non-woven fabrics, stitch-bonded non-woven fabrics, melt-blown non-woven fabrics, wet-laid non-woven fabrics, air-laid non-woven fabrics, Hot rolled (staple fiber) non-woven fabric, chemical bonding (impregnation, spray glue) non-woven fabric, hot-air non-woven fabric, etc. Among the above non-woven fabrics, wet-laid non-woven fabrics, air-laid non-woven fabrics, chemically bonded non-woven fabrics, and air-through non-woven fabrics, to a certain extent, are now some composite non-woven fabrics, but from non-woven fabrics In terms of the major categories, we don’t earn money from experts, and we designate them as base non-woven fabrics, needle-punched non-woven fabrics, spunlace non-woven fabrics, spunbonded non-woven fabrics and other non-woven fabrics. The composite method of different raw materials is also regarded as the basic material, and the non-woven sheet is only regarded as the other materials used in the composite of a type of material: pulp, fiber, polymer resin, net, plastic, metal foil, paper, cloth, Sponge, leather, metal powder, inorganic salt powder, organic powder, etc., the above are only some conceptual types on a scale, and only materials that can be combined with non-woven fabrics can be used. Let me introduce the method again.
Here is the main point of the full text. The following introduces the currently existing or upcoming composite non-woven fabrics:
1. Compound between non-woven fabrics
(1) Spunbond spunlace nonwoven fabric (the spunbond spunlace nonwoven fabric here is not the spunbond spunlace nonwoven fabric often mentioned in the profession, the same does not include the spunbond super fiber spunlace fabric, it is two types Composite between sheets), spunbond non-woven fabric and spunlace non-woven fabric are hot-rolled and hot-pressed, adhesive (chemical type, physical type, etc.), technical composite (such as needle punching, etc.) are added. Woven fabrics are currently used in the field of wipes;
(2) Spunbond needle-punched non-woven fabrics are like the above-mentioned spunbond spunlace non-woven fabrics. The spunbond needle-punched non-woven fabrics here are not the spunbond needle-punched non-woven fabrics often mentioned in the profession, and the same does not include spinning. Viscose microfiber needle-punched fabric is a composite between two kinds of sheets. Spunbond non-woven fabric and needle-punched non-woven fabric are hot-rolled and pressed, added with adhesive (chemical type, physical type, etc.), and technical composite ( Such as acupuncture, etc.);
(3) Spunbond meltblown non-woven fabric, here spunbond meltblown nonwoven fabric refers specifically to the offline composite of spunbond fabric and meltblown fabric, spunbonded nonwoven fabric and meltblown nonwoven fabric are hot-rolled and pressed , Increase the adhesive (chemical type, physical type, etc.), technical compound (such as acupuncture, etc.);
(4) Melt-blown spunlace non-woven fabric, a composite of two kinds of sheets, or sandwich (four Meiji, Five Meiji, etc., as long as you wish) laminated non-woven fabric, the laminating method can be heated by hot rolling Pressing, adding adhesives (chemical type, physical type, etc.), technical compounding (such as acupuncture, spunlace, etc.), and other compounding methods you can think of;
(5) Melt-blown needle punched non-woven fabrics, the composite of two kinds of sheets, or sandwiches (four Meiji, Five Meiji, etc., as long as you wish) laminated non-woven fabrics, the laminating method can be heated by hot rolling Pressing, adding adhesives (chemical type, physical type, etc.), technical compounding (such as acupuncture, spunlace, etc.), and other compounding methods you can think of;
(6) Spunbond stitch-bonded composite non-woven fabric, the composite of two kinds of sheets, or sandwiches (four Meiji, Five Meiji, etc., as long as you wish) laminated non-woven fabric, the laminating method can be hot rolled Hot pressing, adding adhesives (chemical type, physical type, etc.), technical compounding (such as acupuncture, spunlace, etc.), and other compounding methods you can think of;
(7) Spunbond wet-laid non-woven fabric, composite of two kinds of sheets, laminated non-woven fabric, the laminating method can be through hot rolling and hot pressing, adding adhesive (chemical type, physical type, etc.), technical composite ( Such as acupuncture, spunlace, etc.), so visitors need to select materials when making products, and the lamination order of each material is placed and laminated according to the needs of the product's function.
2. Compounding between non-woven fabrics and more common materials: Because the compatibility of different materials is different, to achieve an excellent composite effect, the compatibility is a very important question. If there are extreme differences between the materials Good compatibility, then the compounding effect will be excellent. Another question to be considered is the temperature question. Many materials under high temperature or melting state have excellent compounding effects, but once the temperature drops, it may be Unexpected effects occur, such as bubbles, easy peeling, weakness, etc.
(1) Non-woven fabric and paper (pulp or paper) composite, currently on the market are wood pulp spunlace non-woven fabric, spunbond and paper composite, hot air non-woven fabric and paper composite, and chemically bonded non-woven fabric and paper Compounding, etc., as well as the paper we may use in the papermaking industry, can be compounded with non-woven fabrics, and the material can be selected according to the use situation;
(2) Non-woven fabric and plastic film (mainly refers to the composite of the film material and the non-woven fabric, the clarification of the materials of the film and the coating), and the non-woven fabric is combined with PE, PP, PET, PTFE, PVC, PC and other materials that can be made into plastic films are compounded. Most of these materials use non-woven fabrics as the carrier to complete the properties of a material together;
(3) Non-woven fabrics are compounded with metal foil. The primary metal foils are aluminum, copper, iron, and gold. If there are other metal foils to compound, it can also;
(4) Non-woven fabrics and nets are compounded. The nets here include woven woven nets, plastic nets, metal nets and other organic and inorganic nets;
(5) Non-woven fabrics are combined with fabrics. The fabrics here can be knitted, woven and all other sheet-like fabrics;
(6) Non-woven fabrics and sponge materials are compounded, all polymer materials that can be made into sponges can be compounded with non-woven fabrics, and various sponges, polyurethane, PVA, etc. need to be selected; Note: non-woven sheets The two-layer composite materials are temporarily written here. The composite of the above sheets can be laminated through adhesives, physical laminating and other new technical laminating methods, so that the two materials are composited together, and together they bear the function of the product. Different aspects.
3. Non-woven fabrics are compounded with other powders, resins, metals, and fiber materials. The compound used here may not be accurate, but a more precise statement should be blended.
(1) The non-woven fabric is coated, and the powder, resin, metal or other materials are attached to the surface of the non-woven fabric or the inside of the non-woven fabric by coating technology, and the composition is all stable;
(2) The non-woven fabric is impregnated, and the powder, resin, metal or other materials are attached to the surface of the non-woven fabric or the inside of the non-woven fabric by impregnation technology to form a stable whole;
(3) The non-woven fabric is sprayed (sprayed), and polymer resin or polymer materials are applied to the non-woven fabric through hot melt or chemical technology to form a balanced and stable whole;
(4) For coating the non-woven fabric, chemical coating and electrochemical coating can be used to form a film on the surface of the non-woven fabric to complete the surface treatment of the non-woven fabric;
(5) The non-woven fabric and resin (polymer) materials are calendered, and the resin (polymer materials) is applied to the surface of the non-woven fabric to complete the composite of two or more materials;
(6) The non-woven fabric is compounded with fiber materials, which can be applied to the surface of the non-woven fabric through chemical bonding and thermal bonding, and the composite is completed on the surface of the non-woven fabric to achieve the corresponding effect
Note: If it is extended here, it will involve composite materials. The processing method of composite materials is used to complete the deformation of new materials. The scale is relatively wide. Since I am ignorant, I will stop here. Non-woven fabrics and other powder materials, resins , Metal composite writes here temporarily.
After all, non-woven fabric is an old or new product in the textile or side-by-side textile category, and its concept cannot follow the pace of commodity development. To a certain extent, non-woven fabric can also be called a cloth that cannot be called well-known. , Perhaps it can be called the information that cannot be called the name, and an inductive concept is given through non-woven fabrics. Various compound methods are emerging one after another. Various processing technologies are also changing customs and customs. The products that were originally compounded offline are in a certain amount. Under the urging, completed the online one-step non-woven materials, such as: the development process of SMS products is the same, from offline composite to online production, spunlace wood pulp non-woven fabric is developed from offline paper and cloth composite to online paper and cloth composite , To online papermaking and fiber layer or spunlace cloth composite. Variety of commodity changes are also endless, but the ultimate intention is to obtain a kind of material to reach the intention of use. In this process, it is often accompanied by cost, function, technology and other influencing factors, so the development of the material depends on the product. The use of the product depends on the environment in which the product is used and its occasions, as well as the characteristics of the underlying materials.