JPS627197Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a filling material that has good heat retention, is soft to the touch, and has a firm performance with little sinking, which is necessary for high-load type fillings such as mattresses. be. Traditionally, high-load type fillings have rarely been given consideration to special filling structures, and soft, low-load type materials such as comforters have generally been used as they are, and have been mainly provided to the market, but in recent years Along with research into ergonomic technology, there has been a desire to create a firm batting material with less sinking. In other words, if you use a low-load type batting material as is and try to make it into a high-load type, there is a disadvantage that the texture will generally become hard. High-load type products have also been proposed, but due to the manufacturing method and quality, it is rare to be able to create a material with a fibrous feel, and it is difficult to provide a material that feels like cotton. The current situation is that it is difficult to accept in the actual market due to its poor heat retention properties. The purpose of the present invention is to improve these points and provide a new structure for a filling material that is soft to the touch, has less sinking, is firm, and has good heat retention properties. For this purpose, the first constituent fiber layer is a web composed of substantially spread continuous filament yarns having random crimp and a single fiber thickness of 0.1 to 2.0 deniers. , and approximately 40 to 40 staple fibers with a thickness of 5.0 to 15.0 denier.
95% by weight, and about 5 to 60% by weight of a fibrous adhesive, which joins the staple fibers while substantially retaining its fibrous form, and has an apparent density of 0.010 to 0.050. g/cm ³ as the second constituent fiber layer, and the first constituent fiber layer and the second constituent fiber layer are stacked on top of each other in a layered manner. achieved. The filling material of the present invention will be explained in more detail below. The filling material of the present invention has at least two layers, one of which is made of single fibers.
It is a web-like laminate consisting of continuous filament yarns having a denier of 0.1 to 2.0, and the filament yarns must be substantially opened and the single fibers must have random crimp. The fineness of the single fibers constituting the continuous filament yarn is preferably low, for example, 2.0 denier or less, preferably in the range of 0.1 to 1.5 denier. In other words, as the fineness of the single fibers decreases, the number of fibers per unit volume increases with the same basis weight, so the microscopic chambers (cells) formed by the single fibers become smaller, making it difficult for air to move. This reduces convection and improves heat retention. The continuous filament yarns constituting the fine fiber layer are substantially fully opened to the shape of a single fiber,
Moreover, the opened single fibers are not regular crimped, for example, machine crimped, but have a crimped form, size,
Since the webs formed from such yarns have random crimp with different numbers, their weights are uniform, and the phase of the crimp is different from that of regular crimp. There is little coincidence, and there are many intertwining and crossing points between single fibers, making it strong, and significantly reducing cotton shrinkage and cotton breakage. The staple fibers constituting the other layer may be, for example, synthetic fibers such as polyester, polypropylene, polyacrylic, natural fibers such as cotton, wool, hemp, rayon, etc., used alone or in a mixture of at least two or more of these. Among them, polyester having excellent resistance to settling is preferable. In addition, the staple fiber has a fineness of 5.0 so that it can sufficiently resist sagging even under high loads.
~15.0 denier must be used. The fibrous adhesive may be any adhesive as long as it has adhesive properties to the staple fibers for filling and exhibits a fibrous form, such as copolyester fibers, polyolefin fibers, and polyvinyl having a lower melting point than the fibers. There are also alcohol-based fibers. The reason for using the fibrous adhesive is that when the adhesive has a fibrous form, it is possible to bond the filler fibers, which is advantageous because the elasticity of the layer after bonding, the resistance to compression, etc. are improved. . Moreover, in the present invention, it is desirable that the fibrous adhesive retains its fibrous form after bonding, and by retaining its fibrous form, it is possible to prevent deterioration in elasticity, air permeability, moisture permeability, etc. However, if the mixing ratio of the fibrous adhesive is less than 5% by weight, it is not preferable because the filling staple fibers may become insufficiently bonded or difficult to bond uniformly, whereas if it exceeds 60% by weight, the resulting layer It is not preferable because the properties such as elasticity, compression resistance, and heat retention properties are greatly reduced. In addition, this other fiber layer has a fiber density of 0.010 g/cm ³ or more and within a range not exceeding 0.050 g/cm ³ , preferably within a range of 0.020 g/cm ³ to 0.040 g/cm ³ It is necessary that i.e. 0.010g/
If the density is lower than cm ³ , the elasticity and compression resistance will decrease, and the hardness performance of the present invention will not be maintained, which is undesirable. Also 0.050g/ ^cm3
If it exceeds, it becomes too hard. In the lamination polymerization of both layers, each layer may be laminated or one layer and two layers may be combined. For example, when making a futon, filament layers are placed on both the upper and lower surfaces with an adhesive layer of staple fibers as the center layer. It's good. Next, the present invention will be explained using drawings. FIG. 1 is a sectional view of an example of the filling material of the present invention. The web layer 1 made of filament yarn, which is a layer that improves heat retention and tactility due to fine fibers, is coated on both the upper and lower surfaces of the web layer 2, which is a staple fiber layer that withstands high loads and reduces the amount of sinking, and prevents sagging. arranged and superimposed. A product can be manufactured by covering the filling batting with a side fabric and securing it appropriately. The stuffing batting is effectively applied to stuffed products to which a high load is applied, and exhibits the best performance in, for example, mattresses, pillows, mats, cushions, cushions, etc. Hereinafter, the present invention will be explained in more detail with reference to Examples. Example: Polyethylene terephthalate is melt-spun, and the polymer stream discharged from the spinneret is introduced into a pipe with an inner diameter of 3 mmφ, and is ejected together with compressed air, colliding with a collision plate arranged diagonally with respect to the traveling direction of the ejected filament to form a filament. The single fiber fineness is
A web with a basis weight of 100 g/m ² was prepared from random resin shrinkage filaments of 0.8 denier and an average shrinkage of 4.2%. On the other hand, 20% by weight of olefin-modified polyvinyl alcohol fiber (8 denier fineness, 76 mm fiber length) that has adhesive properties when treated with steam, and polyethylene terephthalate fiber (15 denier fineness, 76 mm fiber length) that does not have adhesive properties when treated with steam. 80 ^wt . A filament yarn layer was polymerized and laminated on the upper and lower surfaces of the second fiber layer to prepare a batting for stuffing of the present invention having a basis weight of 4.5 kg/piece. On the other hand, polyethylene terephthalate fiber (fineness 15 denier, fiber length 76 mm) was used as a conventional batting to create a web with a fabric weight of 4.5.
I made a batting that would weigh 1 kg/sheet. Both were placed inside a side fabric (size 200cm x 100cm) and partially secured to create a futon. When both of these were subjected to a practical evaluation test, the evaluations as shown in Table 1 were obtained, and the results were good. 【table】

[Brief explanation of drawings]

FIG. 1 is a schematic cross-sectional view showing an example of the filling material of the present invention. 1: Filament web layer, 2: Staple fiber layer.

Claims (1)

[Scope of claims for utility model registration] (1) Random crimp and single fiber thickness
The first constituent fiber layer is a web composed of continuous filament yarns of 0.1 to 2.0 denier in a substantially opened state, and
Approximately 40 to 5.0 to 15.0 denier staple fibers
95% by weight, and about 5 to 60% by weight of a fibrous adhesive, which joins the staple fibers while substantially retaining its fibrous form, and has an apparent density of 0.010 to 0.050. A batting for stuffing, characterized in that the second constituent fiber layer is a web of g/cm ³ , and the first constituent fiber layer and the second constituent fiber layer are layered one on top of the other. (2) The filler described in claim (1) of the utility model registration, which is characterized in that it is used as the filler of a futon. (3) The utility model registration claim No. Filling batting described in item 1) or item (2).