JPH05161765A - Cushion material - Google Patents
Cushion materialInfo
- Publication number
- JPH05161765A JPH05161765A JP33721991A JP33721991A JPH05161765A JP H05161765 A JPH05161765 A JP H05161765A JP 33721991 A JP33721991 A JP 33721991A JP 33721991 A JP33721991 A JP 33721991A JP H05161765 A JPH05161765 A JP H05161765A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- fibers
- heat
- sheath
- core
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Landscapes
- Nonwoven Fabrics (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、家具、寝具、車両等の
クッション材に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cushioning material for furniture, bedding, vehicles and the like.
【０００２】[0002]
【従来の技術】従来より、クッション材として、発泡ウ
レタンまたは繊維の集合体が主に使用されている。最近
では、市場の多様化、高級化といった背景から、高品質
のクッション材に対する要望が高い。発泡ウレタンは、
クッション材としてへたり難い（耐へたり性が良い）と
いう特性を有しているものの、クッションとしては弾性
が強すぎるため、風合いあるいは感触が悪い点、また、
通気性が悪く熱を蓄積しやすいため使用感が悪い点等の
問題点を有している。一方、繊維の集合体は、クッショ
ンとして良好な弾性を有し、風合いあるいは感触が良
く、通気性が良好であるものの、耐へたり性が不良で使
用しているうちに風合いが低下するという問題点を有し
ていた。2. Description of the Related Art Conventionally, urethane foam or an aggregate of fibers has been mainly used as a cushion material. Recently, due to the diversification of the market and the sophistication of the market, there is a strong demand for high-quality cushion materials. Urethane foam
Although it has a characteristic that it is difficult to settle as a cushioning material (good settling resistance), it is too elastic as a cushion, so it has a bad texture or feel.
It has problems such as a bad feeling in use because it has poor air permeability and easily accumulates heat. On the other hand, an aggregate of fibers has good elasticity as a cushion, has a good texture or feel, and has good breathability, but has a problem that the texture deteriorates during use due to poor sag resistance. Had a point.
【０００３】特開昭５７−１０１０５０号公報には、５
〜１８山／２５ｍｍの捲縮を有するポリエステル短繊維
と低融点合成繊維との混綿を用い、融着接合によって硬
綿仕上げの詰め物とする敷布団用詰め物が提案されてい
る。この詰め物は、短繊維を単に詰めたものに比較し
て、折曲げに関する取扱い性と硬さを改善することがで
きたが、耐へたり性は未だ十分ではないという問題があ
った。In Japanese Patent Laid-Open No. 57-101050, there is 5
A mattress for mattresses has been proposed which uses a cotton blend of polyester short fibers having a crimp of ~ 18 ridges / 25 mm and a low-melting point synthetic fiber and which is a hard cotton-finished stuffing by fusion bonding. This padding was able to improve the handling property and hardness regarding bending as compared with the one in which short fibers were simply padded, but there was a problem that the sag resistance was not yet sufficient.
【０００４】[0004]
【発明が解決しようとする課題】本発明の目的は、上記
したような問題点を解消できる、良好な通気性、適度な
圧縮特性（弾性）、良好な耐へたり性を有するクッショ
ン材を提供することである。SUMMARY OF THE INVENTION An object of the present invention is to provide a cushioning material which can solve the above-mentioned problems and which has good air permeability, appropriate compression characteristics (elasticity) and good sag resistance. It is to be.
【０００５】[0005]
【課題を解決するための手段】前記した本発明の目的
は、捲縮数が５０山／２５ｍｍ以上かつ捲縮度が４０％
以上の高捲縮繊維と、芯鞘型熱接着性繊維とを含んでな
る繊維集合体からなり、該芯鞘型熱接着性繊維により繊
維相互が部分的に接合した構造を形成し、厚さが５ｍｍ
以上、目付が２００ｇ／ｍ2 以上であることを特徴とす
るクッション材によって達成できる。The above-mentioned object of the present invention is to provide a crimp number of 50 peaks / 25 mm or more and a crimp degree of 40%.
It comprises a fiber assembly containing the above highly crimped fiber and a core-sheath type heat-adhesive fiber, and forms a structure in which the fibers are partially joined by the core-sheath type heat-adhesive fiber, and has a thickness Is 5 mm
As described above, it can be achieved by a cushion material having a basis weight of 200 g / m 2 or more.
【０００６】以下、本発明について詳細に説明する。本
発明のクッション材は、高度の捲縮数、捲縮度を有する
高捲縮繊維と、芯鞘型熱接着性繊維とを含んだ繊維集合
体で構成される。The present invention will be described in detail below. The cushioning material of the present invention is composed of a fiber assembly containing highly crimped fibers having a high number of crimps and a high degree of crimping, and a core-sheath type thermoadhesive fiber.
【０００７】ここでいう捲縮数、捲縮度は、ＪＩＳＬ−
１０１５に準じて測定したものをいう。従来の捲縮数は
高々２０山／２５ｍｍ、捲縮度は２０％程度であったの
に対し、本発明においては、捲縮数が５０山／２５ｍｍ
以上、捲縮度が４０％以上の繊維を用いる。捲縮数が５
０山／２５ｍｍ未満、あるいは捲縮度が４０％未満であ
ると、耐へたり性が低下するので好ましくない。捲縮数
は６０〜８０山／２５ｍｍの範囲であることが好まし
い。また、捲縮度は４５〜６０％が好ましい。The number of crimps and the degree of crimp referred to here are JISL-
It refers to the value measured according to 1015. In the present invention, the number of crimps is 20 peaks / 25 mm and the crimping degree is about 20%, whereas in the present invention, the number of crimps is 50 peaks / 25 mm.
As described above, a fiber having a crimping degree of 40% or more is used. 5 crimps
If the number of ridges is less than 0/25 mm or the crimping degree is less than 40%, the sag resistance is lowered, which is not preferable. The number of crimps is preferably in the range of 60 to 80 threads / 25 mm. The crimping degree is preferably 45 to 60%.
【０００８】本発明の高捲縮繊維は、複数の繊維形成性
重合体が複合された構造を有する複合繊維からなり、熱
処理によって高捲縮を発現する潜在捲縮性繊維であっ
て、例えば、サイドバイサイド型、多層状などに複合さ
れた複合繊維からなる高捲縮繊維が挙げられる。The highly crimped fiber of the present invention comprises a conjugate fiber having a structure in which a plurality of fiber-forming polymers are compounded, and is a latently crimped fiber which develops a high crimp by heat treatment. Examples of the highly crimped fiber include side-by-side type and multi-layered composite fibers.
【０００９】さらに具体的に例示すれば、ポリエステ
ル、ポリアミド、ポリエチレン、ポリプロピレンなどの
繊維形成性重合体を複合して繊維とする。複合成分は、
加熱時の収縮率がそれぞれ異なる重合体を選定し複合す
ればよい。なかでもポリエチレンテレフタレートと共重
合ポリエステルからなるポリエステル繊維が好ましく、
例えば、イソフタル酸、ナトリウムスルホイソフタル
酸、アジピン酸、セバシン酸、ナフタレンジカルボン酸
等を共重合した共重合ポリエステルと、ポリエチレンテ
レフタレートとからなるサイドバイサイド型の複合繊維
等が挙げられる。More specifically, a fiber-forming polymer such as polyester, polyamide, polyethylene or polypropylene is compounded into a fiber. The complex ingredients are
Polymers having different shrinkage rates upon heating may be selected and compounded. Among them, polyester fiber composed of polyethylene terephthalate and copolyester is preferable,
For example, a side-by-side type composite fiber composed of a copolymerized polyester obtained by copolymerizing isophthalic acid, sodium sulfoisophthalic acid, adipic acid, sebacic acid, naphthalenedicarboxylic acid, etc., and polyethylene terephthalate can be mentioned.
【００１０】熱処理による高捲縮の発現は、例えば、原
綿の段階、高次加工工程において、１００℃〜２００℃
の温度での湿熱あるいは乾熱の熱処理によって行われ
る。高次加工工程において行なう場合には、熱接着性繊
維と混合した後、熱接着性繊維の溶融温度付近で捲縮が
発現するように、原綿の設計をするのが製造コスト、高
次加工性の面から好ましい。複合繊維を用いないで、単
一の繊維形成性重合体からなる繊維を用いて、従来のス
タッファボックスにより捲縮付与をする方法では、５０
山／２５ｍｍ以上の捲縮数、４０％以上の捲縮度を得る
ことができないので好ましくない。The development of high crimps by heat treatment is, for example, 100 ° C. to 200 ° C. at the stage of raw cotton and the higher processing steps.
It is performed by heat treatment of wet heat or dry heat at the temperature of. When performing in a high-order processing step, it is necessary to design the raw cotton so that crimps appear near the melting temperature of the heat-adhesive fiber after mixing with the heat-adhesive fiber. From the viewpoint of. In the conventional crimping method using a stuffer box, a fiber made of a single fiber-forming polymer is used without using a composite fiber.
It is not preferable because it is not possible to obtain a number of crimps of 25 mm or more and a crimping degree of 40% or more.
【００１１】一方、熱接着性繊維は、芯鞘型複合からな
る熱接着性繊維であって、鞘成分が芯成分よりも低い温
度で溶融するように複合されている繊維である。加工性
の観点から鞘成分の軟化点は２００℃以下が好ましく、
耐熱性の観点から９０℃以上が好ましい。１１０℃〜１
８０℃であれば、より好ましい。具体的には、例えば、
芯成分にポリエチレンテレフタレートを用い、鞘成分と
してイソフタル酸、アジピン酸、ポリエチレングリコー
ル等と共重合させたポリエステル共重合体からなる複合
繊維が挙げられる。その他、ポリアミドやポリエチレ
ン、ポリプロピレン等のポリオレフィンなどを用いても
よく、鞘成分が芯成分より低い温度で溶融するように複
合した繊維であればよい。鞘成分は芯成分より少なくと
も３０℃低い温度で軟化するものが好ましく用いられ
る。また、芯／鞘複合比率は、２０／８０〜８０／２０
であることが好ましい。芯成分が２０％未満では、繊維
形態保持性が悪くなるので好ましくない。鞘成分が２０
％未満では、熱接着性が悪くなるので好ましくない。On the other hand, the heat-adhesive fiber is a heat-adhesive fiber composed of a core-sheath type composite, and is a fiber in which the sheath component is melted at a temperature lower than that of the core component. From the viewpoint of workability, the softening point of the sheath component is preferably 200 ° C or lower,
From the viewpoint of heat resistance, 90 ° C or higher is preferable. 110 ℃ ~ 1
It is more preferably 80 ° C. Specifically, for example,
Examples of the composite fiber include polyethylene terephthalate as a core component and a polyester copolymer copolymerized with isophthalic acid, adipic acid, polyethylene glycol or the like as a sheath component. In addition, polyolefins such as polyamide, polyethylene, polypropylene, etc. may be used as long as they are composite fibers so that the sheath component melts at a lower temperature than the core component. As the sheath component, one that is softened at a temperature lower than that of the core component by at least 30 ° C. is preferably used. The core / sheath composite ratio is 20/80 to 80/20.
Is preferred. When the content of the core component is less than 20%, the fiber shape retention property becomes poor, which is not preferable. 20 sheath components
If it is less than%, the thermal adhesiveness is deteriorated, which is not preferable.
【００１２】熱接着性繊維が芯鞘型複合繊維でなく単成
分繊維の場合、接着させるために熱処理すると、熱接着
性繊維は繊維の形態を保持できなくなり、その結果、部
分的に塊状になって接合するため、風合い、感触、耐へ
たり性が悪くなるので好ましくない。When the heat-adhesive fiber is not a core-sheath type composite fiber but a single-component fiber, when heat-treated for bonding, the heat-adhesive fiber cannot retain the shape of the fiber and, as a result, becomes partially lumpy. Since they are joined together, the texture, feel, and sag resistance deteriorate, which is not preferable.
【００１３】図１は、本発明のクッション材の一実施例
の一部を図示したものである。高捲縮繊維１は、熱接着
性繊維２により、繊維と繊維が接する点３で接合された
構造を形成している。FIG. 1 shows a part of an embodiment of the cushioning material of the present invention. The highly crimped fiber 1 forms a structure in which the heat-adhesive fiber 2 joins the fibers at a point 3 where the fibers contact each other.
【００１４】本発明における大きな特徴は、捲縮数が５
０山／２５ｍｍ以上、捲縮数４０％以上である高度に捲
縮を有する繊維を用いるところにある。本発明のクッシ
ョン材は、優れた耐へたり性を有するが、それは熱接着
性繊維により接合された接合点と接合点との間は、高度
に捲縮を有する繊維であることから優れた柔軟性を有し
ているため、圧縮を受けた時に応力を吸収・分散するこ
とができるためと考えられる。一方それに対し、従来並
の捲縮では、繰り返し圧縮を受けると接合点への応力集
中が避けられず、経時的に接合点が分離してしまい、弾
力性が低下し、耐へたり性が悪いものと考えられる。A major feature of the present invention is that the number of crimps is 5
There is a highly crimped fiber having 0 peak / 25 mm or more and a crimping number of 40% or more. The cushioning material of the present invention has excellent sag resistance, but since it is a fiber having a high degree of crimp between the joining points joined by the heat-adhesive fibers, it is excellent in flexibility. It is considered that it is possible to absorb and disperse stress when it is compressed due to its properties. On the other hand, with conventional crimps, when subjected to repeated compression, stress concentration at the joint is unavoidable, and the joint separates over time, resulting in reduced elasticity and poor sag resistance. Thought to be a thing.
【００１５】本発明のクッション材を形成する高捲縮繊
維、熱接着性繊維は、１〜２０デニールの繊維が用いら
れるが、２〜８デニールが好ましい。また、各繊維は一
方向に配向することなく、３次元ランダムに配列されて
いるほうが、耐へたり性をさらに向上させることができ
るので好ましい。As the highly crimped fibers and the heat-bondable fibers forming the cushioning material of the present invention, fibers of 1 to 20 denier are used, but 2 to 8 denier is preferable. Further, it is preferable that the respective fibers are arranged in a three-dimensional random manner without being oriented in one direction because the sag resistance can be further improved.
【００１６】本発明のクッション材は、主として捲縮数
が５０山／２５ｍｍ以上、捲縮度４０％以上の高捲縮繊
維と熱接着性繊維から構成されていることが好ましく、
その混紡比率は特に限定されるものでないが、高捲縮繊
維は少なくとも全体の４０重量％以上であることが好ま
しく、５０重量％以上であることはより好ましい。ま
た、熱接着性繊維は、少なくとも全体の１０重量％以上
であることが好ましく、２０重量％以上であることはよ
り好ましい。また、必要に応じて、他の天然繊維、半合
成繊維、発泡体などが混合されていてもよい。The cushion material of the present invention is preferably composed mainly of highly crimped fibers having a number of crimps of 50 threads / 25 mm or more and a crimping degree of 40% or more, and a heat-adhesive fiber,
The blending ratio is not particularly limited, but the highly crimped fiber content is preferably at least 40% by weight and more preferably at least 50% by weight based on the whole. Further, the heat-adhesive fiber is preferably at least 10% by weight and more preferably at least 20% by weight of the whole. If necessary, other natural fibers, semi-synthetic fibers, foams, etc. may be mixed.
【００１７】本発明における耐へたり性の効果は、高捲
縮繊維の含有量に依存するため、クッション材の厚さ５
ｍｍ以上が好ましく、１０ｍｍ以上はさらに好ましい。
厚さが５ｍｍ未満では、本発明の効果が得られないので
好ましくない。また、同様の観点から、目付２００ｇ／
ｍ2 以上が好ましく、３００ｇ／ｍ2 以上はさらに好ま
しい。目付が２００ｇ／ｍ2 未満では、本発明の効果が
得られないので好ましくない。Since the effect of sag resistance in the present invention depends on the content of the highly crimped fiber, the thickness of the cushion material is 5
mm or more is preferable, and 10 mm or more is more preferable.
If the thickness is less than 5 mm, the effect of the present invention cannot be obtained, which is not preferable. From the same viewpoint, the basis weight is 200 g /
m 2 or more is preferable, and 300 g / m 2 or more is more preferable. When the basis weight is less than 200 g / m 2 , the effect of the present invention cannot be obtained, which is not preferable.
【００１８】なお、接着性を有する樹脂、例えばアクリ
ル、ウレタン、シリコン、ポリエステル樹脂等をクッシ
ョン材に噴霧あるいは浸漬したり、または粉末状にして
混合した後、熱処理する加工を本発明のクッションに併
用することは、繊維相互の接着をさらに強化し、クッシ
ョンの取扱い性、形態保持性、耐へたり性をさらに向上
させるので、好ましく用いられる。The cushioning material of the present invention is also processed by spraying or immersing an adhesive resin, such as acrylic, urethane, silicon, polyester resin, or the like, into a cushion material, mixing it into a powder, and then heat treating it. It is preferably used because it further strengthens the adhesion between the fibers and further improves the handleability, shape retention and sag resistance of the cushion.
【００１９】次に、本発明のクッション材を製造する方
法の一例を説明する。本発明のクッション材は、潜在捲
縮性繊維と熱接着性繊維を開綿・混紡をし、カード機に
てさらに開繊・混紡した後、シート状に成型し複数枚積
層する。次に、熱処理を施すことで、高捲縮を発現させ
るとともに熱接着性繊維の鞘成分を溶融せしめた後、冷
却することで得られる。Next, an example of a method for producing the cushioning material of the present invention will be described. The cushioning material of the present invention is obtained by opening and blending the latently crimpable fibers and the heat-adhesive fibers, further opening and blending them with a card machine, molding them into a sheet and laminating a plurality of layers. Next, heat treatment is performed to develop high crimps, and the sheath component of the heat-adhesive fiber is melted, followed by cooling.
【００２０】また、開綿・混紡し、さらに開繊・混紡し
た後、空気流にて繊維を風送し、予め準備した容器内に
高圧で入れた後、熱処理をする方法によっても得ること
ができる。この方法によれば、空気流を用いることで、
繊維を３次元ランダムに配列させることができ、また、
繊維の分散をよくすることができることから、本発明の
効果をさらに大きく得ることができる。It can also be obtained by a method in which after opening and blending, and further opening and blending, the fibers are blown by an air stream, placed in a container prepared in advance at high pressure, and then heat treated. it can. According to this method, by using the air flow,
The fibers can be arranged randomly in three dimensions, and
Since the dispersion of the fibers can be improved, the effect of the present invention can be further enhanced.
【００２１】[0021]
【実施例】以下、実施例により、本発明をさらに具体的
に説明する。なお、実施例中に示す特性値は次の方法に
より求めたものである。EXAMPLES The present invention will be described in more detail below with reference to examples. The characteristic values shown in the examples are obtained by the following method.
【００２２】（１）捲縮数、捲縮度 ＪＩＳＬ−１０１５に準じて測定した。 （２）圧縮率 圧縮機を使用し、サンプル製品に０．５ｇ／ｃｍ2 の荷
重をかけた時の厚さ（Ａ１）を測定する。次に、３５ｇ
／ｃｍ2 の荷重をかけた時の厚さ（Ａ２）を測定し、下
記式より算出した。 圧縮率［％］＝１００×（Ａ１−Ａ２）／Ａ１ （３）繰り返し圧縮残留歪 圧縮機を使用し、０．５ｇ／ｃｍ2 の荷重下でサンプル
製品の初めの厚さ（Ｂ１）を測定する。次に、そのサン
プル製品に対し圧縮率５０％までの荷重をかけて、また
その荷重の解放をするというサイクルを３万回繰り返し
た後、０．５ｇ／ｃｍ2 の荷重下で厚さ（Ｂ２）を測定
し、下記式より算出した。 繰り返し圧縮率［％］＝１００×（Ｂ１−Ｂ２）／Ｂ１ （４）透湿性 ２０℃×６５％ＲＨの雰囲気下で、３２３ｇ／ｍ2 ・hr
の蒸気を発生させ、サンプルを通過した蒸気量を測定し
た。 （５）蓄熱性 ３３℃×６５％ＲＨの雰囲気下で、日射量７００ｋｃａ
ｌ／ｍ2 ・hrの人工光を４０分間照射した後の表面温度
を測定し、蓄熱性の指標とした。(1) Number of crimps and degree of crimp The number of crimps was measured according to JISL-1015. (2) Compressibility Using a compressor, the thickness (A1) when a load of 0.5 g / cm 2 is applied to the sample product is measured. Next, 35g
The thickness (A2) when a load of / cm 2 was applied was measured and calculated from the following formula. Compressibility [%] = 100 × (A1-A2) / A1 (3) Repeated compressive residual strain Using a compressor, the initial thickness (B1) of the sample product is measured under a load of 0.5 g / cm 2. To do. Then, a cycle of applying a load of up to 50% compression rate to the sample product and releasing the load was repeated 30,000 times, and then a thickness (B2) was obtained under a load of 0.5 g / cm 2. ) Was measured and calculated from the following formula. Repeated compression rate [%] = 100 × (B1-B2) / B1 (4) Moisture permeability 323 g / m 2 · hr in an atmosphere of 20 ° C. × 65% RH
Was generated, and the amount of steam passing through the sample was measured. (5) Heat storage In the atmosphere of 33 ° C. × 65% RH, the amount of solar radiation is 700 kca
The surface temperature after irradiation with artificial light of 1 / m 2 · hr for 40 minutes was measured and used as an index of heat storage property.
【００２３】実施例１〜２、比較例１〜３ 高捲縮繊維は、ポリエチレンテレフタレートにイソフタ
ル酸を５モル％共重合したポリエステル共重合体とポリ
エチレンテレフタレートとを１対１でサイドバイサイド
型に複合した繊維（繊度２デニール、繊維長４４ｍｍ）
からなる潜在捲縮性繊維を用いた。芯鞘型熱接着性繊維
は、芯がポリエチレンテレフタレート、鞘がポリエチレ
ンテレフタレートにイソフタル酸を４０モル％共重合し
た共重合ポリエステルで、芯鞘比率が50/50 である芯鞘
型熱接着性繊維（繊度４デニール、繊維長５１ｍｍ）を
用いた。Examples 1 and 2 and Comparative Examples 1 to 3 The highly crimped fibers were a side-by-side type composite of polyethylene terephthalate and a polyester copolymer obtained by copolymerizing polyethylene terephthalate with 5 mol% of isophthalic acid. Fiber (fineness 2 denier, fiber length 44 mm)
The latent crimpable fiber consisting of was used. The core-sheath type heat-adhesive fiber is a core-sheath type heat-adhesive fiber having a core-sheath ratio of 50/50 (polyethylene terephthalate as the core, polyethylene terephthalate as the core, and 40 mol% of isophthalic acid as a copolymerized polyester). A fineness of 4 denier and a fiber length of 51 mm) was used.
【００２４】スタッファボックスにより、予め捲縮数１
２山／25mm、捲縮度１４％の捲縮を付与した潜在捲縮繊
維を７０重量％、同様に捲縮数１３山／25mm、捲縮度１
７％の捲縮を付与した芯鞘型熱接着性繊維を３０重量％
とからなるものを開綿・混紡機で繊維を開綿、混紡した
後、カード機にてさらに開繊、混紡し、シート状として
複数枚積層し、続いて１５５℃、３分間の熱処理を行な
い、高捲縮繊維が表１に示した捲縮数、捲縮度を有して
おり、目付１０００ｇ／ｍ2 、厚さ３０ｍｍのクッショ
ンを作成した（実施例１）。その特性評価結果を表１に
併記した。また、実施例１と同様の繊維を用いて、開綿
・混紡機で繊維を開綿、混紡し、カード機にてさらに開
繊、混紡した後、空気流にて繊維を予め準備した容器内
に入れ、１５５℃、３分間の熱処理を施し、目付１００
０ｇ／ｍ2 、厚さ３０ｍｍのクッションを作成した（実
施例２）。その特性評価結果を表１に示した。一方、従
来のポリエチレンテレフタレート繊維を用いる他、上記
と同様の方法にて得たクッション（比較例１）、密度が
６ｇ／ｃｍ3 の発泡ウレタンを用いたクッション（比較
例２）、目付と厚さが本発明の範囲外であるクッション
（比較例３）ついても特性評価し、表１に示した。The number of crimps is set to 1 in advance by the staffer box.
70% by weight of latent crimped fibers with crimps of 2 crests / 25 mm and crimping degree of 14%, similarly crimp number 13 crests / 25 mm, crimping degree of 1
30% by weight of core-sheath type heat-bondable fiber with 7% crimp
After the fiber consisting of and is opened and mixed with a cotton opener / mixer, the card is further opened and mixed, and a plurality of sheets are laminated to form a sheet, and subsequently heat treated at 155 ° C for 3 minutes. A highly crimped fiber had the number of crimps and the degree of crimp shown in Table 1, and a cushion having a basis weight of 1000 g / m 2 and a thickness of 30 mm was prepared (Example 1). The characteristic evaluation results are also shown in Table 1. Also, using the same fibers as in Example 1, the fibers were opened and mixed by a cotton opening / mixing machine, further opened and mixed by a card machine, and then the fibers were prepared in advance in an air flow in a container. Put it in a container and heat it for 3 minutes at 155 ℃
A cushion having a thickness of 0 g / m 2 and a thickness of 30 mm was prepared (Example 2). The characteristic evaluation results are shown in Table 1. On the other hand, in addition to using conventional polyethylene terephthalate fiber, a cushion obtained by the same method as above (Comparative Example 1), a cushion using urethane foam having a density of 6 g / cm 3 (Comparative Example 2), areal weight and thickness. The characteristics of the cushions (Comparative Example 3) that are out of the range of the present invention are also evaluated and shown in Table 1.
【００２５】[0025]
【表１】 本発明のクッション（実施例１）は、捲縮特性が低いク
ッション（比較例１）に比べ、繰り返し圧縮残留歪が小
さく、耐へたり性が良好であった。空気吹込方式により
作成したクッション（実施例２）は、繰り返し圧縮残留
歪が特に小さく、耐へたり性が良好であり、風合い、感
触の良いクッションが得られた。一方、従来の発泡ウレ
タンを使用したクッション（比較例２）は、圧縮率が１
０％程度しかなくクッションとしての風合い・感触が悪
く、透湿率に劣り、蓄熱性が高かった。また、目付、厚
さが本発明の範囲外であるクッション（比較例３）は、
繰り返し圧縮残留歪が増加し、耐へたり性が良くなかっ
た。[Table 1] The cushion of the present invention (Example 1) was smaller in residual strain after repeated compression and had better sag resistance than the cushion having a low crimp property (Comparative Example 1). The cushion prepared by the air blowing method (Example 2) had a particularly small residual compression strain during repeated use, had good sag resistance, and had a good texture and feel. On the other hand, the conventional cushion using urethane foam (Comparative Example 2) has a compressibility of 1
Only about 0%, the cushion had a poor texture and feel, was inferior in moisture permeability, and had a high heat storage property. Further, the cushion (Comparative Example 3) having a basis weight and thickness outside the scope of the present invention is
Cyclic residual strain increased and sag resistance was poor.
【００２６】[0026]
【発明の効果】本発明は、高度に捲縮を有する繊維を用
いることから、良好な通気性、適度な圧縮特性（弾性）
を有し、風合い、感触が良好・快適であるとともに、優
れた耐へたり性を有するクッション材を提供することが
できる。さらに、本発明では熱接着性繊維として芯鞘型
複合繊維を用いていることから、単成分熱接着性繊維の
場合に生じる塊状の接合部分がなく、風合い、感触が良
好なクッション材を提供できる。INDUSTRIAL APPLICABILITY Since the present invention uses fibers having a high degree of crimping, it has good air permeability and appropriate compression characteristics (elasticity).
It is possible to provide a cushioning material which has a good texture and feel, is comfortable, and has excellent sag resistance. Further, in the present invention, since the core-sheath type composite fiber is used as the heat-adhesive fiber, it is possible to provide a cushioning material which does not have a lumpy joint portion which occurs in the case of a single-component heat-adhesive fiber and has a good texture and feel. ..
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明のクッション材の一実施例の一部を表す
モデル図である。FIG. 1 is a model diagram showing a part of an embodiment of a cushioning material of the present invention.
１：高捲縮繊維 ２：芯鞘型熱接着性繊維 ３：接合点 1: Highly crimped fiber 2: Core-sheath type heat-adhesive fiber 3: Joining point
Claims (2)
が４０％以上の高捲縮繊維と、芯鞘型熱接着性繊維とを
含んでなる繊維集合体からなり、該芯鞘型熱接着性繊維
により繊維相互が部分的に接合した構造を形成し、厚さ
が５ｍｍ以上、目付が２００ｇ／ｍ2 以上であることを
特徴とするクッション材。1. A core-sheath comprising a fiber assembly containing highly crimped fibers having a number of crimps of 50 threads / 25 mm or more and a crimping degree of 40% or more, and a core-sheath type heat-bondable fiber. A cushion material having a structure in which fibers are partially bonded to each other by a mold heat-adhesive fiber and having a thickness of 5 mm or more and a basis weight of 200 g / m 2 or more.
いることを特徴とする請求項１記載のクッション材。2. The cushioning material according to claim 1, wherein the constituent fibers are arranged three-dimensionally at random.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33721991A JP2715763B2 (en) | 1991-12-19 | 1991-12-19 | Cushioning material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33721991A JP2715763B2 (en) | 1991-12-19 | 1991-12-19 | Cushioning material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05161765A true JPH05161765A (en) | 1993-06-29 |
| JP2715763B2 JP2715763B2 (en) | 1998-02-18 |
Family
ID=18306565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33721991A Expired - Fee Related JP2715763B2 (en) | 1991-12-19 | 1991-12-19 | Cushioning material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2715763B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001288656A (en) * | 2000-02-01 | 2001-10-19 | Hideyuki Sato | Mass of loose fiber, yarn, woven fabric and felt comprising carbon fiber |
| JP2003033586A (en) * | 2001-07-25 | 2003-02-04 | Kanebo Ltd | Cushion material, production method thereof and production apparatus used therefor |
| WO2009028564A1 (en) | 2007-08-31 | 2009-03-05 | Kuraray Kuraflex Co., Ltd. | Base material for cushioning and use thereof |
| JP2010084284A (en) * | 2008-09-30 | 2010-04-15 | Kuraray Kuraflex Co Ltd | Bulky fiber structure and cushion material |
| JP2011172775A (en) * | 2010-02-25 | 2011-09-08 | Unitika Ltd | Method for manufacturing shoe wiping mat |
-
1991
- 1991-12-19 JP JP33721991A patent/JP2715763B2/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001288656A (en) * | 2000-02-01 | 2001-10-19 | Hideyuki Sato | Mass of loose fiber, yarn, woven fabric and felt comprising carbon fiber |
| JP2003033586A (en) * | 2001-07-25 | 2003-02-04 | Kanebo Ltd | Cushion material, production method thereof and production apparatus used therefor |
| WO2009028564A1 (en) | 2007-08-31 | 2009-03-05 | Kuraray Kuraflex Co., Ltd. | Base material for cushioning and use thereof |
| TWI412641B (en) * | 2007-08-31 | 2013-10-21 | Kuraray Co | Substrate for buffering material, manufacturing method and uses thereof |
| JP5399907B2 (en) * | 2007-08-31 | 2014-01-29 | 株式会社クラレ | Base material for cushioning material and use thereof |
| AU2008292450B2 (en) * | 2007-08-31 | 2014-11-06 | Kuraray Co., Ltd. | Base material for cushioning and use thereof |
| US9200390B2 (en) | 2007-08-31 | 2015-12-01 | Kuraray Co., Ltd. | Buffer substrate and use thereof |
| JP2010084284A (en) * | 2008-09-30 | 2010-04-15 | Kuraray Kuraflex Co Ltd | Bulky fiber structure and cushion material |
| JP2011172775A (en) * | 2010-02-25 | 2011-09-08 | Unitika Ltd | Method for manufacturing shoe wiping mat |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2715763B2 (en) | 1998-02-18 |
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