JP2019126451A - Padding structure - Google Patents

Abstract

To provide a padding structure such as a pillow, a mattress and a floor mat in which superior characteristics of feather or granular cotton are utilized, cotton blowing is hard to be caused, and good tactile sensation like low-elasticity raw material is provided.SOLUTION: A padding structure 1 has padding 20, and side fabric 10 for wrapping the padding 20. The side fabric 10 has a first portion 11 and a second portion 12. The first portion 11 has a film-like sheet material, and the second portion 12 has a permeability higher than that of the first portion 11.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a stuffing structure having a stuffing and a side fabric.

  In general, feather products such as pillows, futons, and mats using feathers are accepted as high-quality bedding because of the superior characteristics of feathers. The excellent properties of feathers include being light and bulky, having high heat retention, and being hard to cause felting.

  In addition, granular cotton rolls dozens to hundreds of fibers into a single grain, and itself can have a structure that resists compression, so it has excellent compression characteristics and blows like a feather. It has been used in a form similar to feathers, since it can be molded into bedding etc. by intricate processing.

  However, when the pillow made of a low-resilience material, which is said to be comfortable to sleep, is used as a filler in comparison with pillows made of feathers or granular cotton, the compression ratio is similar to that of feathers or granular cotton. Because the pillows using are faster in deformation speed during compression and recovery speeds during unloading than pillows using low resilience materials, the feel of the low resilience materials is different.

  In addition, when feathers are used as a stuffing, the “blade blow” occurs, which is a phenomenon in which the feather shaft of the feather (feather) or the wing branch of the down (cotton feather) penetrates from the side ground. It is necessary to use high density fabric on the ground. The high-density fabric is woven with an increased density between fibers, and its structure is poor in stretchability and hard to touch. Therefore, when feathers are used as bedding as bedding, there is also a problem that the feeling is bad, and the fit of the head and body is bad because the deformation is small.

  For these problems, the first pillow member and the second pillow member are stacked in order to adjust the height of the pillow and to improve the fit between the head and the pillow by obtaining an appropriate cushioning property. Pillow (for example, refer to Patent Document 1) in which the filling member of the central pillow portion is made of low-rebound elastic foam and the filling members of the other intermediate pillow portion and the end pillow portion are feathers or the like. There has been proposed a pillow (see, for example, Patent Document 2) in which an air pack in which a foam is put in an airtight film bag is disposed, and a padding such as feathers is filled in a portion other than the central portion.

JP 2003-319860 Unexamined-Japanese-Patent No. 2017-29247

  However, conventional techniques such as Patent Literatures 1 and 2 attempt to separate out feather products such as pillows into a plurality of parts and to provide the required feather product characteristics by giving each part a role. Therefore, it has a complicated structure, and there are problems such as an increase in the number of processes and an increase in weight, and the tactile sensation is the same as a conventional feather pillow, like a low-resilience material. It was not a good touch.

  The present invention has been made to solve the problems of the prior art described above, and its object is to make it difficult to cause blow and to be similar to a low resilience material by making use of the excellent properties of feathers and granular cotton etc. The object of the present invention was to provide a filling structure such as a pillow, a mattress, and a mat having a good touch.

  The present inventors can solve the above-mentioned problems of the present invention by using a fabric having stretchability but poor breathability and a side fabric appropriately constructed using a fabric having breathability but poor stretchability. The present invention has been completed.

That is, the present invention has been completed based on such knowledge and has the following configuration.
[1] A stuffing structure having a stuffing and a side surface for wrapping the stuffing, the side surface having a first part and a second part, and the first part has a film-like material The stuffing structure is characterized in that the second part has higher air permeability than the first part.
[2] The stuffing structure according to [1], wherein the first portion has a higher elongation rate than the second portion.
[3] The stuffing structure according to [1] or [2], wherein the first portion has a knitted fabric.
[4] The filling structure according to [3], wherein a part of the film-like material is in the knitted fabric in the first part.
[5] The stuffing structure according to any one of [1] to [4], wherein the first portion has a breaking elongation of 30% or more in the vertical direction and the horizontal direction.
[6] The filling structure according to any one of [1] to [5], wherein the second portion has an air permeability of 0.5 cc / cm ² / s to 3.0 cc / cm ² / s.
[7] The filling structure according to any one of [1] to [6], in which an area occupied by the first portion with respect to the entire side land is 30% or more and 90% or less of the entire area of the side land.
[8] The filling structure according to any one of [1] to [7], wherein a deformation rate calculated by the following formula is 45% or more.
(a formula)
Deformation rate (%) = (a−b) / a × 100
(Measurement condition)
Thickness of filling structure (a): Maximum thickness measured without load on filling structure Thickness of filling structure under load (b): φ 25 mm, weight 1.8 kg at the position of maximum thickness of filling structure Thickness when the weight of a metal cylinder is placed and the sinking of the weight stops [9] Any of [1] to [8], wherein the compression deformation rate calculated by the following formula is less than 0.6 cm / s Filling structure as described in.
(a formula)
Compression deformation rate (cm / s) = a / t1
(Measurement condition)
Thickness of filling structure (a): Maximum thickness measured without load on filling structure Sinking time (t1): Weight of metal cylinder with a diameter of 25 mm and a weight of 1.8 kg at the position of maximum thickness of filling structure [10] The filling structure according to any one of [1] to [9], wherein the recovery deformation speed calculated by the following formula is less than 3 cm / s body.
(a formula)
Recovery deformation speed (cm / s) = b / t2
(Measurement condition)
Thickness of stuffing structure when loaded (b): Thickness recovery time (t2) when a metal cylinder weight of φ25 mm and weight 1.8 kg is placed at the maximum thickness position of the stuffing structure, and the sinking of the weight is stationary ): Time from removal of the weight from the stuffing structure until recovery of the dent of the stuffing structure [11] The stuffing includes feathers or granular cotton, [1] to [10] Stuffing structure.
[12] The stuffing structure according to any one of [1] to [11], wherein the first portion is disposed on a surface in contact with the user during use.
[13] The filling structure according to any one of [1] to [12], which is a pillow or a mat.

  According to the present invention, the excellent characteristics of feathers such as light weight, high bulkiness, high heat retention, low tendency to cause felting, etc. are used, and no blow is caused, and the feel, touch and fit are good. Certain filling structures can be provided.

The side view (partial sectional view) of the filling structure in the embodiment of the present invention is shown. The schematic diagram which shows an example of the side place of the stuffing structure of this invention is represented. The schematic diagram which shows another example of the side place of the stuffing structure of this invention is represented. The schematic diagram which shows the further another example of the side of the filling structure of this invention is represented. FIG. 7 shows a photograph of a filling structure in an embodiment of the present invention. The graph of the compression deformation speed and the recovery deformation speed in the Example and comparative example of this invention is represented.

  A filling structure according to the present invention is a filling structure having a filling and a side covering the filling, wherein the side has a first portion and a second portion, and the first portion is in the form of a film. The second part is characterized in that the second part is more breathable than the first part. Hereinafter, the stuffing structure according to the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the illustrated examples, and is appropriately within a range that can be adapted to the purpose described above and below. It is also possible to implement with changes, all of which are included in the technical scope of the present invention.

  FIG. 1 is a side view (partially sectional view) of a stuffing structure in an embodiment of the present invention, and FIGS. 2 to 4 are schematic views showing examples of the side of the stuffing structure of the present invention. is there. The filling structure 1 has a filling 20 and a side 10 for wrapping the filling 20. The land 10 refers to the fabric that wraps the padding 20.

  As the filling 20, feathers such as feathers (feathers) or downs (cotton feathers), natural fibers or synthetic fibers, granular cotton, foamed foams made of synthetic resin or natural rubber, or the like can be used. The filling 20 preferably comprises, among other things, feather or granular cotton. Since the filling 20 includes feathers, the filling structure 1 can be made lightweight, bulky, and high in heat retention. Since the filling 20 contains granular cotton, it is possible to obtain a filling structure 1 having a good recovery upon compression and a good texture. The filling 20 may be composed of one type of material, or a plurality of types of materials may be mixed.

  The land 10 has a first portion 11 and a second portion 12. The first portion 11 has a film-like substance, and the second portion 12 is more breathable than the first portion 11. The air permeability of the first portion 11 and the second portion 12 can be measured in accordance with JIS L1913 6.8.1 Frazier method.

  By having the 1st part 11 in which the side ground 10 has a film-like thing, the 1st part 11 becomes easy to deform | transform and the stuffing structure 1 follows a user's body, and a user and stuffing The fit with the structure 1 can be enhanced. Moreover, the clearance gap between the fibers which comprise the 1st part 11 can be filled, and the blowing 20 from which the filling 20, such as feathers, leaks outside from the clearance gap between fibers can be prevented.

  As the film-like material of the first portion 11, synthetic resins such as polyethylene and polypropylene, natural rubber, and the like can be used. Among them, it is preferable that an elastomer such as polyurethane is included. Stretchability can be imparted to the first portion 11 by the film-like material of the first portion 11 including an elastomer.

  The first portion 11 may have a film-like material on both sides of the fabric of the first portion 11, but it is more preferable that the first portion 11 has a film-like material only on the inner surface of the filling structure 1. preferable. The inside of the stuffing structure 1 refers to the side opposite to the outside of the stuffing structure 1 in contact with the stuffing 20 of the stuffing structure 1. The outside of the filling structure 1 refers to the air side of the filling structure 1. Since the first portion 11 has the film-like material only on the inner surface of the stuffing structure 1, the film-like material is not exposed to the outside of the stuffing structure 1 in contact with the user, and the stuffing structure 1 You can make your skin feel better.

  Since the side 10 has the second portion 12, the air inside the filling structure 1 can be taken in and out when the filling structure 1 is compressed or released, and the compression of the filling structure 1 or the compression of the filling structure 1 can be performed. The stuffing structure 1 can be deformed along with the compression release, and the feel of the stuffing structure 1 can be improved.

  When a down-proofed fabric is used on the side to prevent "wabbling", which is a phenomenon in which fillings such as feathers leak from the side to the outside, there is little deformation of the side itself and it has a firm feel. It becomes a filling structure. In addition, in order to increase the deformation of the side ground, an elastomer film is attached to an elastic fabric such as a woven fabric, etc. to eliminate gaps between the fibers constituting the fabric to prevent blow and to stretch the fabric. The feel of the filling structure will be good if the ones that do not interfere with the side are used. However, such a filling structure has low air permeability on the side because the film is attached to the fabric, and the air inside the filling structure does not escape when a load is applied to the filling structure and compressed. The result is a balloon-like bouncy touch, which reduces the fit between the user and the filling structure.

  In order to make the feel and fit of the filling structure compatible with each other, the side portion 10 has both the first portion 11 having the film-like material and the second portion 12 which is more breathable than the first portion 11. By having it, the stuffing structure 1 is appropriately deformed when the stuffing structure 1 is compressed or released, and fits to the user, and a good tactile sensation can be obtained.

  The stuffing structure 1 of the present invention preferably has the following configuration.

  The first portion 11 of the side cloth 10 may be a knitted fabric, a woven fabric, a non-woven fabric or the like, and among them, it is preferable to have a knitted fabric. Since the knitted fabric is a stretchable fabric, the first portion 11 can be provided with stretchability by having the knitted fabric.

  The first portion 11 has a knitted fabric, and it is preferable that a part of the film-like material is in the knitted fabric. That is, it is preferable that at least a part of the material constituting the film-like material has infiltrated into or between fibers of the knitted fabric of the first portion 11. When the 1st part 11 is comprised in this way, joining of a knitted fabric and a film-like thing becomes firm, and when the 1st part 11 expands and contracts with compression or compression release of the stuffing structure 1, It is possible to prevent the film-like material from peeling off from the knitted fabric and the occurrence of a blow. In order to obtain a configuration in which a part of the film-like material enters the knitted fabric of the first portion 11, for example, a method of heat-sealing the knitted fabric and the film-like material can be mentioned.

  Examples of constituent yarns of the first portion 11 include natural fibers such as cotton, hemp and silk, and synthetic fibers such as polyester, nylon and polyurethane. The first portion 11 preferably has a synthetic fiber, more preferably a polyester fiber. When the first portion 11 has a synthetic fiber, the strength of the first portion 11 can be enhanced, and the durability of the filling structure 1 can be enhanced. Moreover, since the 1st part 11 has a polyester fiber, it is hygroscopic and can improve the usability of the filling structure 1. As shown in FIG.

  Further, in order to impart elasticity to the first portion 11, a fiber having a latent crimp developed by a composite spinning method, or spandex in which a fiber itself such as a polyurethane elastic yarn is expanded is used for the first portion 11. Also good.

  Although the fiber which comprises the constituent yarn of the 1st part 11 is not specifically limited, It is preferable that the fineness is 30D or more, It is more preferable that it is 40D or more, It is further more preferable that it is 50D or more. By setting the lower limit value of the fineness of the fibers constituting the constituent yarns of the first portion 11 as described above, the strength of the first portion 11 can be increased and the padding structure 1 can withstand repeated compression and compression release. . The fineness of the fibers constituting the constituent yarns of the first portion 11 is preferably 150D or less, more preferably 125D or less, and even more preferably 100D or less. By setting the upper limit value of the fineness of the fibers constituting the constituent yarn of the first portion 11 as described above, the touch of the first portion 11 is improved and the tactile sensation of the stuffed structure 1 can be improved.

  The knitting structure of the first portion 11 is not particularly limited, and any of circular knitting (lamination) and warp knitting may be used. Examples of circular knitting include natural silk knitting, milling, rubber knitting, pearl knitting, and their various textures. Examples of warp knitting include Raschel knitting and tricot knitting. Among them, the first portion 11 is preferably a ply-knit weave. The stretchability of the first portion 11 can be made good by making the knitting structure of the first portion 11 be ply-knitted.

  The first portion 11 preferably has a higher elongation than the second portion 12. The elongation percentage of the first portion 11 and the second portion 12 can be measured in accordance with JIS L1096 8.16.2 B-1 method (constant load method).

  The first portion 11 preferably has a breaking elongation in the longitudinal direction and the transverse direction of 30% or more, more preferably 50% or more, further preferably 70% or more, and 100% or more. It is particularly preferred. By setting the lower limit value of the breaking elongation of the first portion 11 as described above, the stretchability of the first portion 11 can be enhanced, and the stuffing structure 1 with an excellent feeling of fit can be obtained. The upper limit value of the elongation at break of the first portion 11 is not particularly limited, but can be, for example, 1000% or less, 500% or less, or 300% or less. The breaking elongation of the first portion 11 can be measured in accordance with 6.3 of JIS L1913.

  The breaking elongation of the first portion 11 is preferably larger than the breaking elongation of the second portion 12, and in particular, the breaking elongation of the first portion 11 is at least 1.1 times the breaking elongation of the second portion 12 Preferably, it is 1.5 times or more, more preferably 2 times or more. By setting the lower limit of the ratio of the breaking elongation of the first portion 11 and the second portion 12 as described above, the stretchability of the first portion 11 can be made sufficient, and the use of the stuffing structure 1 The fit to the person can be improved. The upper limit value of the ratio of the elongation at break between the first portion 11 and the second portion 12 is not particularly limited, and can be, for example, 100 times or less, 50 times or less, or 30 times or less.

  The area occupied by the first portion 11 with respect to the entire side land 10 is preferably 30% or more, more preferably 35% or more, and 40% or more of the entire area of the side land 10. More preferably. By setting the lower limit value of the ratio of the area occupied by the first portion 11 to the entire side 10 as described above, the amount of deformation of the filling structure 1 can be made appropriate, and the fit with the user can be achieved. It can enhance the feeling. Moreover, it is preferable that the area which the 1st part 11 occupies with respect to the whole side land 10 is 90% or less of the whole area of the side land 10, More preferably, it is 88% or less, 85% or less It is further preferred that By setting the upper limit of the ratio of the area occupied by the first portion 11 with respect to the entire side fabric 10 as described above, the fabric other than the first portion 11 such as the second portion 12 occupies the entire side fabric 10. An area can be secured, and the filling structure 1 can be sufficiently provided with functions such as air permeability.

  The area occupied by the first portion 11 with respect to the entire side land 10 is preferably larger than the area occupied by the second portion 12, and the area occupied by the first portion 11 with respect to the entire side land 10 is The area occupied by the two portions 12 is preferably 1.5 times or more, more preferably 2 times or more, and still more preferably 3 times or more. By setting the lower limit value of the ratio of the area occupied by the first portion 11 and the area occupied by the second portion 12 to the entire side land 10 as described above, the amount of deformation of the stuffing structure 1 may be made appropriate. Therefore, the filling structure 1 can follow the user's body and can be made into a good feeling of use filling structure 1. Further, the area occupied by the first portion 11 with respect to the entire side land 10 is preferably 10 times or less, more preferably 9 times or less, and 7 times or less the area occupied by the second portion 12. It is more preferable that the ratio is 5 times or less. By setting the upper limit value of the ratio of the area occupied by the first portion 11 to the area occupied by the second portion 12 with respect to the entire side 10 as described above, the compression structure 1 is compressed and released. The inside / outside air can be easily taken in and out, so that the stuffing structure 1 is easily deformed, and the fit of the stuffing structure 1 can be improved.

  It is preferable that the first portion 11 be disposed on the surface which is in contact with the user when the filling structure 1 is used. Specifically, for example, when the stuffing structure 1 is a pillow, the first portion 11 is preferably used on the surface of the stuffing structure 1 that contacts the user's head. Since the first part 11 is arranged on the surface in contact with the user, the comfortable first part 11 is in contact with the user, and the user feels good in use, and the first part 11 expands and contracts. It is possible to increase the area of the ground contact surface and receive a load on the entire ground contact surface, and to improve the fit between the stuffing structure 1 and the user.

As the second portion 12, a woven fabric, a knitted fabric, a non-woven fabric, or the like can be used. Especially, it is preferable that the 2nd part 12 contains the high-density fabric which gave the blowing prevention process called a down proof. Down proof refers to a fabric having an air permeability of 3.0 cc / cm ² / s or less. By including the down proof in the second portion 12, the second portion 12 is less likely to be blown even if the air permeability is higher than that of the first portion 11.

In the second part 12 is preferably the air permeability is 0.5 cc / ^cm 2 / s or more, more preferably 0.7 cc / ^cm 2 / s or more, 0.9 cc / ^cm 2 / s or more It is further preferred that By setting the lower limit value of the air permeability of the second portion 12 as described above, the internal air is sufficiently released from the second portion 12 when the stuffing structure 1 is compressed, and when the stuffing structure 1 is compressed and released. Since air can be sufficiently taken in from the second portion 12, a fitting structure 1 with good fit can be obtained. The second portion 12 preferably has air permeability is less than 3.0 cc / ^cm 2 / s, more preferably not more than ^{2.8cc / cm 2 / s, 2.5cc} / cm 2 / s It is more preferable that it is the following. By setting the upper limit value of the air permeability of the second portion 12 as described above, the downproofness of the second portion 12 can be enhanced, and the filling structure 1 in which the blow is less likely to occur can be obtained.

The first portion 11 is an air permeability 0cc / ^cm 2 / s or more (including 0cc / ^cm 2 / s), is preferably not more than ^{0.1cc / cm 2 / s, 0.05cc} / cm ² / s or less is more preferable, and 0.01 cc / cm ² / s or less is further preferable. By setting the numerical range of the air permeability of the first portion 11 as described above, the blow of the first portion 11 can be prevented.

  The air permeability of the second part 12 only needs to be higher than the air permeability of the first part 11, and among them, the air permeability of the second part 12 is preferably 10 times or more than the air permeability of the first part 11, It is more preferably 100 times or more, and still more preferably 1000 times or more. By setting the lower limit value of the air permeability ratio between the second portion 12 and the first portion 11 as described above, the air permeability of the second portion 12 can be made sufficient, and the filling structure 1 can be compressed. At the time of compression release, deformation is appropriately performed, and a comfortable filling structure 1 can be obtained. The upper limit value of the ratio of the air permeability of the second portion 12 and the first portion 11 is not particularly limited.

The second portion 12 preferably has a cover factor (hereinafter sometimes referred to as CF) represented by the following formula of 1400 or more, more preferably 1500 or more, and still more than 1600 preferable.
CF = number of warps (lines / inch) × {fineness of warps (denier)} ^1/2 + number of wefts (lines / inch) × {size of weft (denier)} ^1/2
By setting the lower limit value of CF of the second portion 12 as described above, it is possible to enhance the effect of preventing blow.

  When the filling 20 includes feathers, the CF of the second portion 12 is preferably 1650 or more, more preferably 1700 or more, further preferably 1750 or more, and preferably 1800 or more. Particularly preferred. By setting the lower limit value of the CF of the second portion 12 when the filling 20 includes feathers as described above, even if feathers that are more likely to blow than cotton or granular cotton are used for the filling 20, the second The blow prevention effect of the portion 12 can be made sufficient.

  The CF of the second portion 12 is preferably 2500 or less, more preferably 2300 or less, and still more preferably 2000 or less. By setting the upper limit value of CF of the second part 12 as described above, the air permeability of the second part 12 can be secured, and the fit of the filling structure 1 can be made favorable.

  Examples of constituent yarns of the second portion 12 include natural fibers such as cotton, hemp, and silk, and synthetic fibers such as nylon, polyester, and polyurethane. When the second portion 12 has a natural fiber such as cotton, the touch of the second portion 12 can be improved. When the second portion 12 has a synthetic fiber such as nylon, the strength of the second portion 12 can be enhanced and the durability can be enhanced.

  The fiber constituting the constituent yarn of the second portion 12 is not particularly limited, but the fineness is preferably 5D or more, more preferably 10D or more, and further preferably 15D or more. By setting the lower limit value of the fineness of the fibers constituting the second portion 12 as described above, the strength of the second portion 12 can be increased and the durability of the stuffing structure 1 can be increased. Further, the fineness of the fibers constituting the second portion 12 is preferably 250 D or less, more preferably 200 D or less, and even more preferably 150 D or less. By setting the upper limit value of the fineness of the fibers constituting the second portion 12 as described above, the air permeability of the second portion 12 can be enhanced, and the filling structure 1 with a good fit can be obtained.

  Although the weave structure of the second portion 12 is not particularly limited, plain weave, twill weave, satin weave and the like can be mentioned. The twill and satin weaves may be dobby or jacquard. Among them, the second portion 12 is preferably a plain weave. Since the weave structure of the second portion 12 is plain weave, it is possible to suppress the blow of the second portion 12 and to secure air permeability.

  The number of warps and wefts of the woven structure of the second portion 12 is not particularly limited, but is preferably 50 / inch or more, more preferably 80 / inch or more, and 100 / inch or more. More preferably. By setting the lower limit values of the number of warps and wefts of the second portion 12 as described above, the effect of preventing the second portion 12 from blowing can be enhanced. The number of warps and wefts of the second portion 12 is preferably 250 yarns / inch or less, more preferably 230 yarns / inch or less, and still more preferably 200 yarns / inch or less. By setting the upper limit of the number of warps and wefts of the second portion 12 as described above, the air permeability of the second portion 12 can be secured, and the fit of the filling structure 1 can be improved. .

  The area occupied by the second portion 12 with respect to the entire side land 10 is preferably 10% or more, more preferably 12% or more, and 15% or more of the entire area of the side land 10. More preferably. By setting the lower limit of the ratio of the area occupied by the second portion 12 to the entire side 10 as described above, the amount of air released or taken in from the second portion 12 can be made appropriate, and filling The structure 1 can follow the user's body and enhance the fit. Moreover, it is preferable that the area which the 2nd part 12 occupies with respect to the whole side land 10 is 70% or less of the whole area of the side land 10, More preferably, it is 65% or less, 60% or less It is further preferred that By setting the upper limit of the ratio of the area occupied by the second portion 12 with respect to the entire side land 10 as described above, the speed of deformation of the stuffing structure 1 during compression or compression release is moderated, and the low-rebound material is reduced. It has a good feel similar to a stuffed stuffing structure. In addition, if the ratio of the area which the 2nd part 12 occupies with respect to the whole side land 10 is made small, the stuffing structure 1 will be deform | transformed gently, and if the ratio of the area which the 2nd part 12 occupies is enlarged, the stuffing structure The transformation of 1 takes place quickly.

  The side 10 may have a cloth other than the cloth of the first portion 11 and the cloth of the second portion 12. The fabrics other than the fabric of the first portion 11 and the fabric of the second portion 12 are classified into the first portion 11 or the second portion 12 according to their characteristics, and the first portion 11 or the second portion with respect to the entire side place 10 It can be converted to the ratio of the area occupied by 12. That is, the stretchability and air permeability of the fabric other than the fabric of the first portion 11 and the fabric of the second portion 12 are measured, and the stretchability of the fabric other than the fabric of the first portion 11 and the fabric of the second portion 12 is second When it is higher than the portion 12, it can be classified as the first portion 11, and when the breathability of the fabric other than the fabric of the first portion 11 and the fabric of the second portion 12 is higher than that of the first portion 11, It can be classified into two parts 12.

  The side fabric 10 has a functional fabric that provides functions necessary for the stuffing structure 1 such as moisture absorption, quick drying, waterproofing, antibacterial, deodorizing, pollution prevention, pH control, fragrance, magnetic generation, and flameproofing. Also good. In order to obtain such a functional fabric, for example, a functional agent such as a sweat-absorbing agent or an antibacterial agent is contained in the fabric constituting the side fabric 10 such as the first portion 11 and the second portion 12. Is mentioned. By the side place 10 having a functional fabric, various functions can be given to the filling structure 1, and the usability of the filling structure 1 can be further improved.

  The filling structure 1 preferably has a deformation rate of 45% or more. The deformation rate is calculated by the following formula: {Thickness of stuffing structure 1 (a) −Thickness of stuffing structure 1 at load (b)} / Thickness of stuffing structure 1 (a) × 100.

  The maximum thickness measured in a state where no load is applied to the filling structure 1 is taken as the thickness (a) of the filling structure 1. The weight of a metal cylinder with a diameter of 25 mm and a weight of 1.8 kg is placed at the position of the maximum thickness of the filling structure 1, and the thickness of the filling structure 1 when the sinking of the weight is stopped Let thickness (b). That is, the thickness (b) of the filling structure 1 at the time of loading places the weight at the position of the thickness (a) of the filling structure 1 and when the sinking of the weight into the filling structure 1 is stopped It indicates the thickness of the filling structure 1 at the position where it is placed.

  When the deformation rate of the filling structure 1 is 45% or more, the deformation at the time of compression of the filling structure 1 is large, and the area where the user's body and the filling structure 1 contact when using the filling structure 1 is As the user's body is enlarged and wrapped in the filling structure 1, the filling structure 1 has a high fit and a good feeling in use. The deformation rate of the stuffed structure 1 is preferably 45% or more, more preferably 50% or more, further preferably 53% or more, and particularly preferably 55% or more. By setting the lower limit value of the deformation rate of the filling structure 1 as described above, the deformation at the time of compression of the filling structure 1 can be further increased, and the usability of the filling structure 1 can be further improved. . Although the upper limit of the deformation rate of the filling structure 1 is not particularly limited, it may be, for example, 80% or less.

  The stuffing structure 1 preferably has a compression deformation rate of less than 0.6 cm / s. The compression deformation speed is calculated by the formula of thickness (a) / sinking time (t1) of the filling structure 1.

  A weight of a metal cylinder having a diameter of 25 mm and a weight of 1.8 kg is placed at the position of the maximum thickness of the filling structure 1, and the time for the sinking of the weight to stand still is taken as a sinking time (t1). That is, the sinking time (t1) indicates the time until the sinking of the weight into the filling structure 1 stops after the weight is placed at the position of the thickness (a) of the filling structure 1.

  Since the compression deformation rate of the filling structure 1 is less than 0.6 cm / s, the deformation at the time of compression of the filling structure 1 is gentle, and the user's body is gradually wrapped in the filling structure 1 The feeling of use of the stuffing structure 1 can be improved. The compression deformation speed of the stuffing structure 1 is preferably less than 0.6 cm / s, more preferably less than 0.58 cm / s, and even more preferably less than 0.55 cm / s. By setting the upper limit of the compression deformation speed of the stuffing structure 1 as described above, the deformation speed in the compression of the stuffing structure 1 can be made more appropriate, and the feeling of use of the stuffing structure 1 can be further increased. It can be made preferable. The lower limit value of the compression deformation speed of the filling structure 1 is not particularly limited, but can be, for example, 0.05 cm / s or more.

  The filling structure 1 preferably has a recovery deformation speed of less than 3 cm / s. The recovery deformation speed is calculated by the formula of thickness (b) of the filling structure 1 under load / recovery time (t2).

  The time from the removal of the weight from the stuffing structure 1 to the recovery of the dent of the stuffing structure 1 is defined as a recovery time (t2). That is, the weight is placed at the position of the maximum thickness of the filling structure 1, and after sinking is stopped, the weight is removed from the filling structure 1, and after removing the weight, the recess by the weight of the filling structure 1 is restored Refers to the time until.

  Since the recovery deformation speed of the filling structure 1 is less than 3 cm / s, the deformation during compression release of the filling structure 1 becomes gentle, and the load applied to the filling structure 1 when using the filling structure 1 The dent of the filling structure 1 recovers gently when the pressure is reduced, and the restoration of the filling structure 1 does not greatly repel the user due to the restoration of the dent of the filling structure 1, making the filling structure 1 low-repulsive Can do. The low resilience of the filling structure 1 makes it possible to approach the tactile sensation of a comfortable low resilience material, and the touch feeling of the filling structure 1 can be improved. The recovery deformation speed of the filling structure 1 is preferably less than 3 cm / s, more preferably less than 2.8 cm / s, and even more preferably less than 2.5 cm / s. By setting the upper limit value of the recovery deformation speed of the filling structure 1 as described above, the deformation speed in compression release of the filling structure 1 can be made more gentle, and the feeling of use of the filling structure 1 is further preferable Can be a thing. The lower limit value of the recovery deformation speed of the filling structure 1 is not particularly limited, but can be, for example, 0.1 cm / s or more.

  The filling structure 1 of the present invention can be used, for example, in pillows, mats, bedding such as mattresses, cushions, cushions, backrests of chairs, sofas, etc. Among them, pillows or mats are preferable. By using the filling structure 1 of the present invention as a pillow or a mat, when the user's body is placed on the filling structure 1, the user's body is gently wrapped in the filling structure 1, and When the user's body moves due to the user turning over, etc., the recess of the filling structure 1 gradually recovers at the point where the load applied to the filling structure 1 is reduced, and the user is compressed. There is no feeling, and the feeling of touch and fit is good and the feeling of use can be good.

  Hereinafter, the effects of the present invention will be more specifically described by way of examples. The following examples are not intended to limit the present invention, and any design changes that fall within the spirit of the preceding and following descriptions are within the technical scope of the present invention.

  FIG. 5 is a photograph of a sample of the filling structure in the embodiment of the present invention. Each performance evaluation in the examples was performed on samples of the padded structure by the following method.

(Breathable)
The air permeability was measured according to JIS L1913 6.8.1 Frazier method.

(Elasticity)
The breaking elongation was measured according to 6.3 of JIS L1913.

(Fit feeling, tactile sensation under load, tactile sensation during dewetting)
A metal cylindrical weight having a diameter of 25 mm and a weight of 1.8 kg was applied to the center of the stuffing structure, and held through a guide having a scale so that no load was applied. The thickness of the stuffing structure was measured from the scale of the guide (a: the thickness of the stuffing structure). Next, the holding of the weight was released, and the number of seconds during which the weight was sinking into the stuffing structure by its own weight was measured (t1: sinking time). The thickness of the padding structure when the weight sinks at rest was measured from the scale of the guide (b: the thickness of the padding structure when loaded). The weight was removed from the filling structure, and the time until the dent by the weight of the filling structure was recovered was measured (t2: recovery time). Each parameter was represented by the formula shown below.
Deformation rate (%) = (a−b) / a × 100
Compression deformation rate (cm / s) = a / t1
Recovery deformation speed (cm / s) = b / t2

As the deformation rate was 45% or more and the deformation rate was high, the user's body such as the head was wrapped and fixed in the filling structure, so the fit was high and the feel was good. On the other hand, when the deformation rate was less than 45%, the filling structure did not follow the user's body, resulting in a poor fit.
Good: Deformation rate 45% or more (good)
X: Less than 45% deformation (defect)

As the compression deformation rate is less than 0.75 cm / s and the compression deformation rate is slower, the user feels that the user's body is gradually wrapped in the filling structure, and the result is that the filling structure has a better feel. Became. When the compression deformation speed is less than 0.6 cm / s, a good tactile sensation can be obtained, and when the compression deformation speed is 0.35 cm / s or less, a tactile sensation close to a low resilience material can be obtained. It became texture. On the other hand, when the compression deformation speed is 0.75 cm / s or more, the stuffing structure is rapidly deformed, and a good tactile sensation such as a low-resilience material cannot be obtained.
A: Compression deformation speed 0.35 cm / s or less (particularly good)
◯: Compression deformation speed of more than 0.35 cm / s, less than 0.6 cm / s (good)
Δ: Compression deformation rate 0.6 cm / s or more, less than 0.75 cm / s (possible)
X: Compressive deformation rate 0.75 cm / s or more (defect)

As the recovery deformation speed is less than 3 cm / s and the recovery deformation speed is slower, the depression at the time of unloading of the filling structure gradually recovers, feeling less oppressive to the user and feeling better The On the other hand, when the recovery deformation speed was 3 cm / s or more, the depression was quickly recovered when the filling structure was removed, and the restoration of the depression caused the filling structure to repel the user, resulting in a feeling of pressure. .
Good: Recovery deformation speed less than 3 cm / s (good)
X: Recovery deformation speed 3 cm / s or more (defect)

(Watami evaluation)
A sample of the filling structure was used at bedtime for 10 consecutive days for 8 hours a day, and observed for the presence of blows.
○: No blowing (good)
×: There is a blow (bad)
−: Unused feather

Example 1
Using a polyester multifilament of 75D / 36f as the first part, the knitted fabric is a ply-knitted fabric, and a polyurethane film with a film thickness of 30 μm is bonded by heat fusion to a 28 gauge knit, A fabric having m ² , elongation at break in the longitudinal direction of 75% and elongation at break in the transverse direction of 290% was obtained.

The second part uses 40-st cotton spun yarn, the weave is plain weave, the number of warp is 120 / inch, the number of weft is 110 / inch, air permeability is ^2.5 cc / cm ² / S fabric was obtained.

  As a side of the filling structure, a square pillar-shaped sewing product having a height of 40 cm, a width of 60 cm, and a height of 5.5 cm was produced. The first part is used for the ceiling surface (area 40 cm x 60 cm) and the bottom (area 40 cm x 60 cm) of the padding structure on which the head of the user rides, and the second part is the side (area: 5.5 cm x (60 cm + 40 cm + 60 cm + 40 cm) The side used for (see Figure 2), as a stuffing, 680g of down 50% feather 50% mixed feathers, blown into the filling structure to make a feather pillow. The rate was 81%.

(Example 2)
The first part used in Example 1 is used only for the ceiling surface of the side ground of the filling structure, and the second part used in Example 1 is used for the other parts of the side ground, as in Example 1. A feather pillow was created (see FIG. 3). The area occupation ratio of the first portion in the entire side land was 40%.

(Example 3)
The second part uses a 20D / 12f nylon multifilament, has a plain weave, has 180 warp yarns / inch, and has 170 weft yarns, and has an air permeability of 1 cc / cm ² / s. A feather pillow was prepared in the same manner as in Example 1 using the fabric.

(Example 4)
A feather pillow was prepared in the same manner as in Example 1 by using 680 g of granular cotton (trade name: Maroon S type) manufactured by Arai Co., Ltd. as the stuffing.

(Example 5)
Of the ceiling surface of the padding structure on which the head of the user rides, the first portion used in Example 1 is used only for the portion 15 cm wide x 40 cm long, which is the head portion, and the remaining portion is used A feather pillow was prepared in the same manner as in Example 1 using the side ground made using the second portion used in Example 1. The area occupation ratio of the first portion in the entire side land was 10% (see FIG. 4).

(Comparative example 1)
A feather pillow was prepared in the same manner as in Example 1 using only the second portion used in Example 1 on the side of the filling structure. The area occupation ratio of the first portion in the entire side land was 0%.

(Comparative example 2)
A feather pillow was prepared in the same manner as in Example 1 using only the first portion used in Example 1 on the side of the filling structure. The area occupation ratio of the 1st part in the whole side land was 100%.

(Comparative example 3)
A commercially available low resilience pillow (length 32 cm, width 42 cm, height 9 cm, weight 1.6 kg) was used.

(Comparative example 4)
A pillow (40 cm in length, 60 cm in width, 14 cm in height, 1.8 kg in weight) using commercially available urethane cotton as stuffing was used.

(Comparative example 5)
A pillow was prepared in the same manner as in Example 4 using only the second portion used in Example 1 at the side of the filling structure and using 680 g of granular cotton used in Example 4 as a filling.

  Table 1 shows the evaluation results of Examples 1 to 5 and Comparative Examples 1 to 5. In any of the examples, it was confirmed that there was no blow and that it had a good fit and feel.

  FIG. 6 is a graph of the compression deformation speed and the recovery deformation speed of Examples 1 to 5 and Comparative Examples 1 to 5. If the compression deformation speed is less than 0.6 cm / s and the recovery deformation speed is less than 3 cm / s enclosed by a broken line in the graph of FIG. 6, the user's body is placed on the padding structure. When the load is applied, the user's body gradually sinks into the filling structure, and when the user's body moves, etc. when unloading, the filling structure's dent gradually recovers It is preferable because a good tactile sensation can be obtained with less pressure on the user. Furthermore, if the deformation rate is 45% or more, the stuffing structure follows the user's body, and a tactile sensation like a low resilience material (Comparative Example 3) can be obtained. be able to.

  As described above, the stuffing structure of the present invention has the stuffing and the side place for wrapping the stuffing, the side place has the first part and the second part, and the first part is the second part. The second part has better characteristics of feathers such as lightweight, bulky, high heat retention, and less likely to cause felting because the second part has higher elasticity than the first part. It is possible to provide a filling structure that can be kept alive and does not blow, and that the feel, feel and fit are good.

1: Stuffed structure 10: Side land 11: First part 12: Second part 20: Stuffed

Claims (13)

A stuffing structure having a stuffing and a side wrapping the stuffing,
The side land has a first portion and a second portion,
The first portion has a film-like material,
The stuffing structure characterized in that the second part has higher air permeability than the first part.   The filling structure according to claim 1, wherein the first portion has a higher elongation rate than the second portion.   The filling structure according to claim 1, wherein the first portion has a knitted fabric.   The stuffing structure according to claim 3, wherein the first portion is a part of the film-like material in the knitted fabric.   The filling structure according to any one of claims 1 to 4, wherein the first portion has a breaking elongation in a longitudinal direction and a transverse direction of 30% or more. The filling structure according to any one of claims 1 to 5, wherein the second portion has an air permeability of 0.5 cc / cm ² / s to 3.0 cc / cm ² / s.   The padding structure according to any one of claims 1 to 6, wherein an area occupied by the first portion with respect to the entire side land is 30% or more and 90% or less of the entire area of the side land. The filling structure as described in any one of Claims 1-7 whose deformation rate calculated by the following formula is 45% or more.
(a formula)
Deformation rate (%) = (a−b) / a × 100
(Measurement condition)
Thickness of filling structure (a): Maximum thickness measured without load on filling structure Thickness of filling structure under load (b): φ 25 mm, weight 1.8 kg at the position of maximum thickness of filling structure The thickness when the weight of a metal cylinder is placed and the sinking of the weight stops The stuffing structure according to any one of claims 1 to 8, wherein a compression deformation rate calculated by the following formula is less than 0.6 cm / s.
(a formula)
Compression deformation rate (cm / s) = a / t1
(Measurement condition)
Thickness of filling structure (a): Maximum thickness measured without load on filling structure Sinking time (t1): Weight of metal cylinder with a diameter of 25 mm and a weight of 1.8 kg at the position of maximum thickness of filling structure The time until the sinking of the weight stops after placing The filling structure according to any one of claims 1 to 9, wherein a recovery deformation rate calculated by the following formula is less than 3 cm / s.
(a formula)
Recovery deformation speed (cm / s) = b / t2
(Measurement condition)
Thickness of filling structure under load (b): The weight of a metal cylinder with a diameter of 25 mm and a weight of 1.8 kg is placed at the position of the maximum thickness of the filling structure, and the thickness recovery time when the sinking of the weight stops t2): time from when the weight is removed from the filling structure to when the recess of the filling structure is recovered   The filling structure according to any one of claims 1 to 10, wherein the filling comprises feather or granular cotton.   The stuffing structure according to any one of claims 1 to 11, wherein the first portion is disposed on a surface that is in contact with the user when in use.   It is a pillow or a mat, The filling structure as described in any one of Claims 1-12.