TH34602B - A puffy sheet material with a three-dimensional relief. - Google Patents

Abstract

DC60 (21/05/46) A blistered sheet material with a 3D embossed part is composed of a first fiber layer. and a second fiber layer which has been prepared on at least one side of the fiber layer. this first floor This first layer of fibers contains heat-shrinkable fibers through the shrinkage process. thermally This second layer is made up of fibers that cannot be heat shrinkable. This first fiber layer and this second fiber layer are partially joined together at the many joints formed by fusing bonding. These extensions have been It is formed by melting and solidification of a thermostable resin. It has a melting point higher than the initial shrinkage temperature of this heat shrinkable fiber. This second layer of fibers forms numerous convexity between these interfaces by heat shrinkage. of this first fiber layer, while leaving these interfaces as concave The puffy sheet material with a three-dimensional relief is composed of a first fiber layer. and a second fiber layer which has been prepared on at least one side of the fiber layer. this first floor This first layer of fibers contains heat-shrinkable fibers through the shrinkage process. thermally This second layer is made up of fibers that cannot be heat shrinkable. This first fiber layer and this second fiber layer are partially joined together at the many joints formed by fusing bonding. These extensions have been Formed by melting and solidification of a thermostable resin. It has a melting point higher than the initial shrinkage temperature of this heat shrinkable fiber. This second layer of fibers forms numerous convexity between these interfaces by heat shrinkage. of this first fiber layer, while leaving these interfaces as concave

Claims (9)

1. A fluffed sheet material with a three-dimensional (4) convex section consisting of a first (1) and a second (2) fibrous layer, prepared on top. Minimal on one side Of the first (1) fiber layer, with the first (1) fiber layer containing the shrinkable fibers. It is heated through thermal shrinkage. The second (2) layer of fibers is included. With non-heat shrinkable fibers The first (1) layer of the fibers and the second (2) layer of fibers are partially joined together at the number of (3) extensions that have been formed. By means of a fused bond, the extension (3) is formed by melting. And the crystallization of a thermally fused resin with a melting point higher than the temperature The shrinking fibers begin to shrink with such heat. The second (2) strand is formed by a larger number of convex (4) segments between the (3) connections by thermal contraction of this first (1) fiber layer. Each extension (3) will form the concave part. 2. The material of the floor that is inflated according to the claim No. Where at least one layer of the first (1) layer and the second (2) layer contains heat-bonded fibers with The resin that is fused with such heat 3. The fluffing material according to claim 1 or 2, where the second (2) layer of fibers is a nonwoven strand in place. The first fiber layer (1) will shrink. 4.Blooming material according to one of the claims 1 to 3 Where the fibers apart From this heat-shrinkable cord, which is present in this fluff material, has a melting point. Higher than the initial temperature, the shrinkage of the filament can shrink with such heat 5. Blistering material according to any of Clause 2 to 4. Where the first (1) layer and the second (2) layer contain such heat-stretchable fibers, which are That are the same or different And the melting point of such thermally fused resins of Of such heat-bonded fibers of such heat-bonded fibers that exist The second (2) strand is equal or has a difference of 10 C or less. 6. The process of producing inflated materials according to any of Clause 1 to 5, which includes: Partially fused bonding of the first (1) fibrous material containing the aforementioned heat-shrinkable fibers and the second (2) layer of the fiber material, which consists of Included Such heat-shrinkable fibers, which are arranged on at least one side of the The material used to mechanically fabricate such a layer is for the destruction of the thermally reinforced fiber (20) at the same temperature or greater than the initial temperature shrinkage of the aforementioned heat-shrinkable fibers of the material used. do The first (1) fiber layer, while being extracted, is applied to the first (1) fiber layer and the second (2) layer of the material. Such two classes To form the aforementioned (3) extension, the aforementioned extraction operation is carried out on the aforementioned first layer (1) material and the second layer of fiber material. (2) As mentioned above, these two floors that move through a machine For the destruction of this thermoset (20), until the temperature of the heat-shrinkable fiber The aforementioned first layer materials (1) drop below the initial shrinkage temperature. Of such heat-shrinkable fibers Such extraction and heating of the first (1) layer of material and the aforementioned second (2) layer of the substrate at the same temperature Or greater than the initial shrinkage temperature of the shrinkable fiber With such heat To make such heat-shrinkable fibers shrink And to make materials The second (2) layer of fibers used to make such a second (2) fiber layer is raised between the aforementioned (3) connections, thus to form many such convex sections (4). 7. Process according to claim 6, where the destruction mechanism (20) has This includes the engraved roller (21) and the smooth roller (22) and the aforementioned first layer material (1) and the second layer material ( 2) Such smooth rollers (22) are wrapped around a covering angle equal to 30 or so. The father brought it to action. 8. Process according to claim 6 or 7, where the engraved roller (21) has insulating material. The heat supplied on the neck of the roller. 9. Process according to Clause 6,7 or 8, any one Where at least one layer of material Of the first (1) strand and the second (2) layer material, there is such a heat-shrinkable fiber containing the fused resin. With such heat-shrinkable fibers, the fibers that are heat-shrinkable are then heated by heat-shrinkable in the range. The liquid temperature of the fusible resin is 20 C.