JPH04126856A - Polyester solid wadding - Google Patents
Polyester solid waddingInfo
- Publication number
- JPH04126856A JPH04126856A JP2244761A JP24476190A JPH04126856A JP H04126856 A JPH04126856 A JP H04126856A JP 2244761 A JP2244761 A JP 2244761A JP 24476190 A JP24476190 A JP 24476190A JP H04126856 A JPH04126856 A JP H04126856A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- polyester
- melting point
- dsc
- crystallization peak
- 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.)
- Pending
Links
- 229920000728 polyester Polymers 0.000 title claims abstract description 49
- 239000007787 solid Substances 0.000 title abstract description 7
- 239000000835 fiber Substances 0.000 claims abstract description 33
- 238000002844 melting Methods 0.000 claims abstract description 29
- 230000008018 melting Effects 0.000 claims abstract description 26
- 238000002425 crystallisation Methods 0.000 claims abstract description 18
- 230000008025 crystallization Effects 0.000 claims abstract description 18
- 239000011230 binding agent Substances 0.000 claims abstract description 17
- -1 polyethylene terephthalate Polymers 0.000 claims abstract description 13
- 229920000139 polyethylene terephthalate Polymers 0.000 claims abstract description 12
- 239000005020 polyethylene terephthalate Substances 0.000 claims abstract description 12
- 239000013078 crystal Substances 0.000 claims abstract description 11
- 125000001931 aliphatic group Chemical group 0.000 claims abstract description 8
- 229920000742 Cotton Polymers 0.000 claims description 27
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 230000006835 compression Effects 0.000 abstract description 7
- 238000007906 compression Methods 0.000 abstract description 7
- 241000219146 Gossypium Species 0.000 description 26
- 229920000642 polymer Polymers 0.000 description 24
- 238000010438 heat treatment Methods 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 8
- 238000001816 cooling Methods 0.000 description 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 7
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 6
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000002131 composite material Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 4
- 229920005830 Polyurethane Foam Polymers 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011496 polyurethane foam Substances 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 239000008186 active pharmaceutical agent Substances 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 238000009960 carding Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000009477 glass transition Effects 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- CBFCDTFDPHXCNY-UHFFFAOYSA-N icosane Chemical compound CCCCCCCCCCCCCCCCCCCC CBFCDTFDPHXCNY-UHFFFAOYSA-N 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002074 melt spinning Methods 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- MMINFSMURORWKH-UHFFFAOYSA-N 3,6-dioxabicyclo[6.2.2]dodeca-1(10),8,11-triene-2,7-dione Chemical group O=C1OCCOC(=O)C2=CC=C1C=C2 MMINFSMURORWKH-UHFFFAOYSA-N 0.000 description 1
- CARJPEPCULYFFP-UHFFFAOYSA-N 5-Sulfo-1,3-benzenedicarboxylic acid Chemical compound OC(=O)C1=CC(C(O)=O)=CC(S(O)(=O)=O)=C1 CARJPEPCULYFFP-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000012669 compression test Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- FOTKYAAJKYLFFN-UHFFFAOYSA-N decane-1,10-diol Chemical compound OCCCCCCCCCCO FOTKYAAJKYLFFN-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- QQHJDPROMQRDLA-UHFFFAOYSA-N hexadecanedioic acid Chemical compound OC(=O)CCCCCCCCCCCCCCC(O)=O QQHJDPROMQRDLA-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000006224 matting agent Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、風合が柔らかで、長期間あるいは高温雰囲気
下で使用したききもへたりにくいクツション材となりう
るポリエステル固綿に関するもので、さらに詳しくは、
ポリエステル繊維が、融点１１０〜２２５℃の特定のポ
リエステル系バインダー繊維で点接合されたポリエステ
ル固綿に関するものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to polyester hard cotton that has a soft texture and can be used as a cushion material that does not easily deteriorate even when used for a long period of time or in a high-temperature atmosphere. For more information,
The present invention relates to polyester hard cotton in which polyester fibers are point-joined with specific polyester binder fibers having a melting point of 110 to 225°C.
（従来の技術）
従来、ソファ−や椅子の背もたれ、クツション等の家具
用詰め物やベツド、自動車シートのクツション材として
、主としてポリウレタンフォームが使用されてきた。し
かしながら、ポリウレタンフォームは、燃焼時に含窒素
系の毒性ガスが発生すること、あるいは製造時に使用す
るフロンガスが大気上層のオゾン層を破壊すること等、
安全性や環境保護の立場から問題点が指摘されている。(Prior Art) Conventionally, polyurethane foam has been mainly used as stuffing for furniture such as backrests of sofas and chairs, cushions, beds, and cushioning materials for automobile seats. However, polyurethane foam generates toxic nitrogen-containing gases when burned, and the fluorocarbon gas used during manufacturing destroys the ozone layer in the upper atmosphere.
Problems have been pointed out from the standpoint of safety and environmental protection.
そこで、ポリウレタンフォームに代わる材料としてポリ
エステル繊維を主体とした固綿を使用することが考えら
れ、ポリエステル繊維のウェブをニードリング加工した
ものやバインダー繊維を併用して融着加工したもの（例
えば、特開昭５７３５０４７号公報）等がある。Therefore, it is possible to use hard cotton mainly made of polyester fibers as an alternative material to polyurethane foam. Publication No. 5735047).
（発明が解決しようとする課題）
従来のポリエステル固綿のうち、ポリエステル繊維のウ
ェブをニードリング加工したものは、繊維の一部が脱落
したり、飛散しやすく、この欠点を防止しようとしたバ
インダー繊維を併用して融着加工したものも、風合の柔
らかさに欠け、当りが硬く、また、両者ともに繰り返し
圧縮や高温雰囲気下での圧縮に対してへたりやすく、使
用経時によりクツション性が低下するという欠点がある
。(Problems to be Solved by the Invention) Among conventional polyester hard cottons, those made by needling a web of polyester fibers tend to have some of the fibers falling off or scattering, and a binder that attempts to prevent this drawback has been developed. Products that are fused together with fibers lack softness and are hard to the touch, and both tend to weaken when compressed repeatedly or in high-temperature atmospheres, and their cushioning properties deteriorate over time. The disadvantage is that it decreases.
本発明は、このような従来のポリエステル固綿の風合の
柔らかさ不足やへたりやすさ等を解消し、家具用詰め綿
やベツド、自動車シート用クツション材あるいは敷布団
、座布団、マット等の分野にも使用可能な、柔らかな風
合とへたりにくさを有する新規なポリエステル固綿を提
供することを目的とするものである。The present invention solves the problems of the lack of softness and the tendency of the conventional polyester hard cotton to sag, and is suitable for use in the fields of furniture stuffing, beds, cushioning materials for automobile seats, mattress cushions, cushions, mats, etc. The object of the present invention is to provide a new polyester stiff cotton that has a soft texture and is resistant to flattening, and can be used for various purposes.
（課題を解決するだめの手段）
本発明者は、このような新規な固綿を開発すべく鋭意検
討を重ねた結果、本発明に到達した。(Means for Solving the Problems) The present inventor has made extensive studies to develop such a novel firm cotton, and as a result, has arrived at the present invention.
すなわち、本発明は、主体となるポリエチレンテレフタ
レート繊維が、炭素数４以上の直鎖脂肪族成分を含み、
結晶融点が１１０℃以上、２２５℃以下で、かつＤＳＣ
により測定される降温結晶化ピークの高さ（ｂ）とＤＳ
Ｃにより測定される降温結晶化ピークの半価幅（ａ）と
の比（ｂ ／ ａ ）が０．２以上であるポリエステル
系バインダー繊維で点接合され、厚さが５ ｍｍ以」二
で、密度が０．０１５ｇ ／ ｃｎ！以上であることを
特徴とするポリエステル固綿を要旨とするものである。That is, in the present invention, the main polyethylene terephthalate fiber contains a linear aliphatic component having 4 or more carbon atoms,
Crystal melting point is 110°C or higher and 225°C or lower, and DSC
Height (b) of the temperature-falling crystallization peak measured by DS
Point-bonded with polyester binder fibers having a ratio (b/a) of the half-width of the temperature-falling crystallization peak measured by C at 0.2 or more, and having a thickness of 5 mm or more, Density is 0.015g/cn! The gist of the present invention is to provide a polyester hard cotton characterized by the above characteristics.
次に、本発明の詳細な説明する。Next, the present invention will be explained in detail.
まず、主体となるポリエチレンテレフタレート繊維は、
エチレンテレフタレート単位を主たる構成成分とするも
のであるが、その特性を損なわない範囲でイソフタル酸
、５−スルホイソフタル酸、ジエチレングリコール等の
他の成分が共重合されたものであっても差し支えない。First, the main polyethylene terephthalate fiber is
The main component is ethylene terephthalate units, but other components such as isophthalic acid, 5-sulfoisophthalic acid, diethylene glycol, etc. may be copolymerized as long as the properties are not impaired.
また、その繊度は特に限定されるものでな（、用途によ
る要求特性により決めればよいが、一般には３〜２００
デニールのものが用いられる。In addition, the fineness is not particularly limited (it may be determined depending on the required characteristics depending on the application, but it is generally 3 to 200).
Denier ones are used.
本発明のポリエステル固綿のもう１つの構成要素である
ポリエステル系バインダー繊維は、炭素数４以上の直鎖
脂肪族成分を含む低融点結晶性ポリエステル系重合体を
バインダー成分としてもつものであり、この低融点結晶
性ポリエステル系重合体のみからなる単成分繊維および
、この低融点結晶性ポリエステル系重合体がムレ繊維の
表面の全部または一部を形成している芯鞘型、ザイドバ
イザイド型、海島型、割繊型等の複合繊維を含むもので
ある。The polyester binder fiber, which is another component of the polyester hard cotton of the present invention, has a low melting point crystalline polyester polymer containing a linear aliphatic component having 4 or more carbon atoms as a binder component. Single-component fibers consisting only of low-melting point crystalline polyester polymers, and core-sheath type, zide-by-zide type, and sea-island fibers in which the low-melting point crystalline polyester polymer forms all or part of the surface of the stuffy fibers. It includes composite fibers such as type and split type.
直鎖脂肪族成分としては、１，４−ブタンジオール、１
，６−ヘキサンジオール、１．８−オクタンジオール、
■、９−ノナンジオール、１，１０−デカンジオール等
の脂肪族ジオール、また、アジピン酸、セパチン酸、テ
トラデカン−１，１４−ジカルボン酸、オクタデカン−
１，１８−ジカルボン酸、エイコサン１．２０−ジカル
ボン酸等の脂肪族ジカルボン酸が挙げられる。炭素数４
以上の直鎖脂肪族成分をポリエステル重合体中に導入す
ることにより結晶性が増大し、結晶融点が観測されやす
くなる。低融点結晶性ポリエステル系重合体の結晶融点
は、これらの直鎖脂肪族成分の種類およびポリニスデル
重合体の全繰り返し単位中に占める割合によって定まる
ので、所定の結晶融点となるように適宜直鎖脂肪族成分
の種類およびポリエステル重合体の全繰り返し単位中に
占める割合を定めるとよい。As the straight chain aliphatic component, 1,4-butanediol, 1
, 6-hexanediol, 1.8-octanediol,
(2) Aliphatic diols such as 9-nonanediol, 1,10-decanediol, adipic acid, cepatic acid, tetradecane-1,14-dicarboxylic acid, octadecane-
Aliphatic dicarboxylic acids such as 1,18-dicarboxylic acid and eicosane 1,20-dicarboxylic acid are mentioned. Carbon number 4
By introducing the above linear aliphatic component into the polyester polymer, crystallinity increases and the crystal melting point becomes easier to observe. The crystal melting point of a low melting point crystalline polyester polymer is determined by the type of these linear aliphatic components and their proportion in the total repeating units of the polynisder polymer. It is preferable to determine the type of the group component and its proportion in the total repeating units of the polyester polymer.
低融点結晶性ポリエステル系重合体の結晶融点は、１１
０℃以上、２２５℃以下であり、好ましくは１３０℃以
上、２００℃以下である。結晶融点が１１０℃未満であ
ると、高温雰囲気下、例えば、炎天下にさらされる椅子
や自動車シートに使用すると、へたりやすくなり好まし
くない。また、結晶融点が２２５℃を超えると、主体と
なるポリエチレンテレフタレート繊維の点接合のための
熱処理の際、ポリエチレンテレフタレート繊維自体が固
化し始めたり、接着が不十分となり、へたりやすくなる
ので好ましくない。The crystal melting point of the low melting point crystalline polyester polymer is 11
The temperature is 0°C or higher and 225°C or lower, preferably 130°C or higher and 200°C or lower. If the crystal melting point is less than 110° C., it is undesirable because it tends to sag when used in a high-temperature atmosphere, such as a chair or car seat exposed to the hot sun. In addition, if the crystal melting point exceeds 225°C, it is undesirable because the polyethylene terephthalate fiber itself may begin to solidify during the heat treatment for point bonding of the main polyethylene terephthalate fiber, or the adhesion may become insufficient, making it easy to sag. .
また、前記低融点結晶性ポリエステル系重合体は、ＤＳ
Ｃにより測定される降温結晶化ピークの高さ（ｂ）とＤ
ＳＣにより測定される降温結晶化ピークの半価幅（ａ）
との比（ｂ／ａ）が、０．２以上、好ましくは０．５以
上、特に好ましくは１．０＝６
以上であり、これが０，２未満であると、耐熱性が劣る
ため、すなわち、融点が１１０℃以上であっても、ガラ
ス転移点以上の温度で非晶部分が軟化し始めるため、前
述したような高温雰囲気下での使用によってへたりやす
く、好ましくない。低融点結晶性ポリエステル系重合体
の具体例としては、第１表に示したようなものが挙げら
れる。Further, the low melting point crystalline polyester polymer is DS
The height of the temperature-falling crystallization peak measured by C (b) and D
Half width (a) of temperature-falling crystallization peak measured by SC
The ratio (b/a) is 0.2 or more, preferably 0.5 or more, particularly preferably 1.0=6 or more. Even if the melting point is 110° C. or higher, the amorphous portion begins to soften at a temperature higher than the glass transition point, so it tends to weaken when used in a high-temperature atmosphere as described above, which is not preferable. Specific examples of the low melting point crystalline polyester polymer include those shown in Table 1.
（以下余白）
第
■
表
これらの低融点結晶性ポリエステル系重合体のうち、経
済性を考えると、テレフタル酸、イソフタル酸、エチレ
ングリコール、１，４−ブタンジオール、１，６−ヘキ
ザンジオール、ネオペンチルグリコールを構成成分とす
るものが好ましい。(Space below) Table ■ Among these low-melting point crystalline polyester polymers, considering economic efficiency, terephthalic acid, isophthalic acid, ethylene glycol, 1,4-butanediol, 1,6-hexanediol, Those containing neopentyl glycol as a constituent are preferred.
本発明に用いる低融点結晶性ポリエステル系重合体には
、本発明の効果を損なわない範囲で他の成分を共重合し
てもよく、また、艶消剤、安定剤、着色剤等の添加剤を
加えてもよい。The low melting point crystalline polyester polymer used in the present invention may be copolymerized with other components within the range that does not impair the effects of the present invention, and additives such as matting agents, stabilizers, colorants, etc. may be added.
また、本発明に用いるポリエステル系バインダー繊維の
使用割合は、固綿全体の５〜４０％でよいが、用途によ
り、要求される特性により、変えることができる。Further, the proportion of the polyester binder fiber used in the present invention may be 5 to 40% of the total cotton, but it can be changed depending on the use and required properties.
本発明のポリエステル固綿を得るには、前記のポリエチ
レンテレフタレート繊維とポリエステル系バインダー繊
維を、用途あるいはその要求特性により決定された割合
にて混綿し、梳綿機等でウェブを形成した後、熱処理装
置を通して低融点結晶性ポリエステル系重合体を溶融さ
せ、ポリエチレンテレフタレート繊維を点接合させる。In order to obtain the polyester hard cotton of the present invention, the polyethylene terephthalate fibers and polyester binder fibers described above are blended in a ratio determined depending on the intended use or its required characteristics, and after forming a web using a carding machine or the like, heat treatment is performed. The low melting point crystalline polyester polymer is melted through the device and the polyethylene terephthalate fibers are point bonded.
この場合、熱処理の前にニードリング加工を行なっても
よい。In this case, needling processing may be performed before heat treatment.
熱処理装置としては、熱風循環ドライヤー、熱風貫流ド
ライヤー、サクションドラムドライヤーヤンキードラム
ドライヤー等が用いられ、低融点結晶性ポリエステル系
重合体の融点に応じた処理温度と処理時間を選定して処
理を行なえばよい。As a heat treatment device, a hot air circulation dryer, a hot air circulation dryer, a suction drum dryer, a Yankee drum dryer, etc. are used, and if the treatment temperature and treatment time are selected according to the melting point of the low melting point crystalline polyester polymer, good.
本発明のポリエステル固綿は、そのクツション性を保持
するうえで、厚さを５ｍｍ以上とする必要がある。上限
は特に限定しないが、製造設備、製造コスト、使いやす
さの点から、１５０ｍｍ程度が好ましい。また、本発明
のポリエステル固綿の密度は、０．０１５ ｇ／ｃｎ！
以上とする必要がある。密度が０．０１５ ｇ／ｃｌに
満たない場合、繰り返し圧縮によりへたりやすく、不適
当である。密度の上限は、用途によるクツション性の要
求程度により異なるので特定しないが、製造設備、製造
コスト等の面より、０．１ ｇ ／ｃ＋＋ｆ以下とする
のが好ましい。The polyester hard cotton of the present invention needs to have a thickness of 5 mm or more in order to maintain its cushioning properties. Although the upper limit is not particularly limited, it is preferably about 150 mm from the viewpoint of manufacturing equipment, manufacturing cost, and ease of use. Moreover, the density of the polyester hard cotton of the present invention is 0.015 g/cn!
It is necessary to do more than that. If the density is less than 0.015 g/cl, it is unsuitable because it tends to sag due to repeated compression. The upper limit of the density is not specified because it varies depending on the degree of cushioning required depending on the application, but it is preferably 0.1 g/c++f or less from the viewpoint of manufacturing equipment, manufacturing cost, etc.
本発明のポリエステル固綿の厚さと密度を規制するには
、熱処理によるウェブの面積収縮を考慮し＝１０
て熱処理前のウェブの目付を適切に選定するとともに、
熱処理装置に厚さ規制ロールを組み込んだり、所定の厚
さのスペーサーをはさんだ板や金網の間にウェブをはさ
んで熱処理すればよい。In order to regulate the thickness and density of the polyester solid cotton of the present invention, the area shrinkage of the web due to heat treatment is taken into consideration, and the basis weight of the web before heat treatment is appropriately selected.
Heat treatment can be carried out by incorporating a thickness regulating roll into a heat treatment device, or by sandwiching the web between plates or wire meshes with spacers of a predetermined thickness in between.
（作 用）
本発明のポリエステル固綿は、炭素数４以上の直鎖脂肪
族成分を含む低融点結晶性ポリエステル系重合体によっ
て点接合されており、このバインダー成分には弾性があ
るため、風合の柔らかい固綿となり、繰り返し圧縮に対
してもへたりにくいものとなる。(Function) The polyester hard cotton of the present invention is point-bonded with a low melting point crystalline polyester polymer containing a linear aliphatic component having 4 or more carbon atoms, and since this binder component has elasticity, When combined, it becomes a soft, firm cotton that is resistant to deterioration even under repeated compression.
また、このバインダー成分は、１１０〜２２５℃の明確
な結晶融点を有する結晶性ポリマーであるので、ポリマ
ーのガラス転移点量」二の雰囲気下であっても、結晶融
点より約１０℃以上低い温度なら軟化の程度が少なく、
高温雰囲気下での圧縮に対してもへたりにくいものとな
る。In addition, since this binder component is a crystalline polymer with a clear crystalline melting point of 110 to 225°C, even in an atmosphere where the glass transition point of the polymer is 2, the temperature is about 10°C or more lower than the crystalline melting point. If so, the degree of softening is small,
It also becomes resistant to deterioration when compressed in high-temperature atmospheres.
（実施例）
以下、実施例によって本発明の詳細な説明するが、本発
明はこれらによって限定されるものではない。なお、本
発明に記述した諸物性の測定法は、次のとおりである。(Examples) Hereinafter, the present invention will be explained in detail with reference to Examples, but the present invention is not limited thereto. The methods for measuring the various physical properties described in the present invention are as follows.
（１） 相対粘度
フェノールと四塩化エタンの等重量混合物を溶媒とし、
試料濃度０．５ｇ／ａ、温度２０℃で測定した。(1) Relative viscosity A mixture of equal weights of phenol and tetrachloroethane is used as a solvent,
Measurement was performed at a sample concentration of 0.5 g/a and a temperature of 20°C.
（２）結晶融点
パーキンエルマー社製の示差走査熱量計ＤＳＣ−２型を
使用し、昇温速度２０℃／分で測定した。(2) Crystal melting point Measured using a differential scanning calorimeter model DSC-2 manufactured by PerkinElmer at a heating rate of 20° C./min.
（３）ＤＳＣにより測定される降温結晶化ピークの高さ
（ｂ）とＤＳＣにより測定される降温結晶化ピークの半
価幅（ａ）との比（ｂ／ａ）パーキンエルマー社製の示
差走査熱量計ＤＳＣ−２型を使用し、試料量１．０ｍｇ
、昇温速度２０℃／分で測定試料の〔融点＋３０］ｔま
で昇温後、降温速度２０℃／分で降温したときの降温結
晶化ピークより求めた。(3) Ratio (b/a) of the height of the cooling crystallization peak measured by DSC (b) and the half width (a) of the cooling crystallization peak measured by DSC (differential scanning manufactured by PerkinElmer) Using calorimeter DSC-2 type, sample amount 1.0 mg
It was determined from the temperature-falling crystallization peak when the temperature was raised to [melting point +30]t of the measurement sample at a temperature increase rate of 20°C/min, and then the temperature was lowered at a cooling rate of 20°C/min.
第１図は、ＤＳＣにより測定される降温結晶化ピークを
示す模式図であり、縦軸は熱量（ｍｃａｌ／秒）、横軸
は温度（℃）を示す。降温結晶化ピークの高さ（ｂ）と
は、基線に対する極大点の高さ（ｍｃａｌ／秒）であり
、降温結晶化ピークの半価幅（ａ）とは、降温結晶化ピ
ークの高さ（ｂ）の半分の高さでのピーク幅（℃）であ
る。なお、測定に際し、チャート速度を２０＋ｎｌ１１
／分とした。FIG. 1 is a schematic diagram showing a temperature-falling crystallization peak measured by DSC, where the vertical axis shows the amount of heat (mcal/sec) and the horizontal axis shows the temperature (° C.). The height (b) of the cooling crystallization peak is the height (mcal/sec) of the maximum point relative to the baseline, and the half width (a) of the cooling crystallization peak is the height (mcal/sec) of the cooling crystallization peak. It is the peak width (°C) at half the height of b). In addition, when measuring, the chart speed was set to 20+nl11
/ minute.
（４）捲縮数 ＪＩＳ Ｌ１０１５ ７，１．２．１法で測定した。(4) Number of crimps Measured using JIS L1015 7, 1.2.1 method.
（５）繰り返し圧縮時、耐へたり性
ポリエステル固綿の厚さを測定した後、試験片（１０ｃ
ｍＸ １０ｃｍ）を平行平面板にはさみ、毎分６０回で
１５ｋｇの荷重をかけて合計５万回の繰り返し圧縮試験
を行なった後の厚さを測定し、次式で嵩高性保持率Ｃ（
％）を算出し、へたりにくさの尺度とした。Ｃの値が大
きいほどへたりにくいものである。(5) After measuring the thickness of the polyester solid cotton that is resistant to settling during repeated compression, a test piece (10cm
m x 10 cm) between parallel plane plates, and subjected to a compression test of 50,000 times in total by applying a load of 15 kg at 60 times per minute.The thickness was measured using the following formula, and the bulkiness retention rate C (
%) was calculated and used as a measure of resistance to settling. The larger the value of C, the more difficult it is to deteriorate.
（６）高温雰囲気下の耐へたり性
ポリエステル固綿の厚さを測定した後、試験片（１０ｃ
ｍＸ １０ｃｍ）を平行平面板にはさみ、当初の厚さの
５０％に圧縮固定して温度７０℃の恒温槽中に入れ、６
時間放置した後取り出し、平行平面板よりはずして常温
中で３０分間放置し、その厚さを測定する。次式で高温
雰囲気下の嵩高性保持率Ｃｐ（％）を算出し、耐へたり
性の尺度とした。(6) After measuring the thickness of the polyester hard cotton that is resistant to settling under high temperature atmosphere, a test piece (10cm
m x 10 cm) between parallel flat plates, compressed and fixed to 50% of the original thickness, and placed in a constant temperature bath at a temperature of 70°C.
After leaving it for a while, take it out, remove it from the parallel plane plate, leave it for 30 minutes at room temperature, and measure its thickness. The bulkiness retention rate Cp (%) under a high temperature atmosphere was calculated using the following formula, and was used as a measure of resistance to settling.
（７）風合
１０人のパネラ−による官能試験により、次の３段階で
評価した。(7) Hand: A sensory test was conducted by 10 panelists, and the texture was evaluated in the following three grades.
１：柔らかい ２：普 通
３：硬 い
実施例１
テレフタル酸ジメチル（ＤＭＴ）と１，４−ブタンジオ
ールおよび１，６−ヘキザンジオールをＢＤ／ＨＤモル
比６８／３２で、また、ＤＭＴに対するグリコールのモ
ル比が１．６ ： １となるような割合に仕込み、さら
に、ＤＭＴ１モルに対して３×１０−４モルのテトラブ
チルチタネートを触媒としてエステル交換、重縮合させ
、相対粘度１．５３、結晶融点１７０℃、ＤＳＣにより
測定される降温結晶化ピークの高さ（ｂ）とＤＳＣによ
り測定される降温結晶化ピークの半価幅（ａ）との比（
ｂ／ａ）２．３７のバインダー成分としてのポリエステ
ル重合体Ａを得た。1: Soft 2: Normal 3: Hard Example 1 Dimethyl terephthalate (DMT), 1,4-butanediol and 1,6-hexanediol were mixed at a BD/HD molar ratio of 68/32, and The molar ratio of glycol was charged at a ratio of 1.6:1, and further transesterification and polycondensation were carried out using 3 x 10-4 mol of tetrabutyl titanate per 1 mol of DMT as a catalyst, resulting in a relative viscosity of 1.53. , crystal melting point 170°C, ratio of the height (b) of the cooling crystallization peak measured by DSC to the half width (a) of the cooling crystallization peak measured by DSC (
b/a) Polyester polymer A as a binder component of 2.37 was obtained.
このポリエステル重合体Ａのチップと相対粘度１．３８
のポリエチレンテレフタレートからなるポリエステル重
合体Ｂのチップを減圧乾燥した後、通常の複合溶融紡糸
装置を使用して溶融し、ポリエステル重合体Ａを鞘、ポ
リエステル重合体Ｂを芯、複合比（重量比）（Ａ／Ｂ）
を１／１として紡糸孔数２６５の紡糸口金を通し、紡糸
温度２７０℃、総吐出量３４７ ｇ／分で複合溶融紡出
した。This polyester polymer A chip has a relative viscosity of 1.38.
After drying chips of polyester polymer B made of polyethylene terephthalate under reduced pressure, they are melted using a normal composite melt spinning device, and polyester polymer A is used as a sheath, polyester polymer B is used as a core, and composite ratio (weight ratio) is obtained. (A/B)
Composite melt spinning was carried out at a spinning temperature of 270° C. and a total discharge rate of 347 g/min through a spinneret with 265 spinning holes.
紡出繊維糸条を冷却した後、引取速度１０００ｍ／分で
引き取って未延伸繊維糸条を得た。After the spun fiber yarn was cooled, it was taken off at a take-up speed of 1000 m/min to obtain an undrawn fiber yarn.
得られた糸条を集束し、１０万デニールのトウにして、
延伸倍率３．１、延伸温度６０℃で延伸し、１５０℃の
ヒートドラムで熱処理してから、押し込み式クリンパを
使用して捲縮を付与した後、長さ５１ｍｍに切断して、
単糸繊度４デニールの芯鞘型複合ポリエステル系バイン
ダー繊維を得た。The obtained yarn is bundled into a 100,000 denier tow,
Stretched at a stretching ratio of 3.1 and a stretching temperature of 60°C, heat treated with a heat drum at 150°C, crimped using a push-in crimper, and then cut to a length of 51 mm.
A core-sheath type composite polyester binder fiber having a single yarn fineness of 4 denier was obtained.
得られたバインダー繊維と通常のポリエチレンテレフタ
レート繊維（繊度６デニール、捲縮数９ケ／ ２５ ｍ
ｍ、切断長５１ｍｍ、中空率〈繊維切断面における中空
部分の割合〉３１％）を２０：８０の重量割合で混綿し
、梳綿機に通した後、クロスラッパーで積層して目付６
００ｇ／ｍ’のウェブとし、バーブ付ニードルを有する
ニードルロッカールームに通して、針密度２４０本／
ｃｌにてニードリングを行なった。さらに、このウェブ
を２０ｍｍの厚さのスペーサーをはさんだ金網の間に入
れ、厚さを規制しつつ、１８０℃の熱風循環ドライヤー
中で１．５分間自由熱処理を行なった。The obtained binder fiber and ordinary polyethylene terephthalate fiber (fineness 6 denier, number of crimps 9/25 m)
m, cutting length 51 mm, hollow ratio (proportion of hollow part on fiber cut surface) 31%) was mixed at a weight ratio of 20:80, passed through a carding machine, and then laminated with a cross wrapper to obtain a fabric weight of 6.
00g/m' web and passed through a needle locker room with barbed needles to obtain a needle density of 240/m.
Needling was performed using cl. Furthermore, this web was placed between wire meshes sandwiching spacers with a thickness of 20 mm, and free heat treatment was performed for 1.5 minutes in a hot air circulation dryer at 180° C. while controlling the thickness.
得られた固綿は、密度０．０３１ ｇ ／ｃｎｆ、風合
は１で柔らかいものであった。また、Ｃ−８９％、Ｃｐ
＝８４％であった。The obtained hard cotton had a density of 0.031 g/cnf, a texture of 1, and was soft. Also, C-89%, Cp
=84%.
実施例２〜４および比較例１．２
第２表に示したような種々のジカルボン酸成分とグリコ
ール成分を組み合わせてポリエステル重合体へを得た。Examples 2 to 4 and Comparative Example 1.2 Polyester polymers were obtained by combining various dicarboxylic acid components and glycol components as shown in Table 2.
バインダー成分としてこれらのポリエステル重合体Ａを
使用し、延伸工程のヒートドラム温度とウェブ熱処理温
度を第２表に示す条件とすること以外は、実施例１と同
様にして実施例２〜４および比較例１．２の固綿を得た
。Examples 2 to 4 and comparison were carried out in the same manner as in Example 1, except that these polyester polymers A were used as the binder component, and the heat drum temperature in the stretching process and the web heat treatment temperature were set to the conditions shown in Table 2. The solid cotton of Example 1.2 was obtained.
固綿の密度は、いずれも０．０３ ｇ ／ｃｕｔ前後で
あった。The density of the solid cotton was around 0.03 g/cut in all cases.
（以下余白）
第
表
＝１８
な固綿であった。しかしながら、比較例１は、結晶融点
が低く、高温雰囲気下の耐へたり性が低いものであった
。また、比較例２は、バインダー繊維で点接合するだめ
の温度が高くなりすぎて、得られた固綿の風合が硬く、
好ましくない。(Left below) Table 18 It was a hard cotton. However, Comparative Example 1 had a low crystal melting point and low resistance to settling under a high temperature atmosphere. In addition, in Comparative Example 2, the temperature at which the binder fibers were point-joined was too high, and the texture of the resulting cotton was hard.
Undesirable.
実施例５〜８
主体となるポリエチレンテレフタレート繊維の繊度、切
断長、捲縮数および中空率を変更したこと以外は、実施
例１と同様にして実施した結果を第３表に示す。Examples 5 to 8 Table 3 shows the results of experiments conducted in the same manner as in Example 1, except that the fineness, cutting length, number of crimps, and hollow ratio of the main polyethylene terephthalate fiber were changed.
第 ３ 表
いずれも、固綿の厚さは２０ｍｍ、密度はおよそ０、０
３０ ｇ／ｃｕｔであった。いずれの場合も、当りが柔
らかで、耐へたり性も良好なものであった。In both Table 3, the thickness of the cotton is 20 mm, and the density is approximately 0, 0.
It was 30 g/cut. In all cases, the contact was soft and the resistance to set was good.
実施例９．１０および比較例３．４
実施例１において熱処理の際に厚さを規制するスペーサ
ーの厚みを種々変更すること（実施例９．１０および比
較例３）、さらには、熱処理前のウェブの目付を変更す
ること（比較例４）以外は、実施例１と同様にして実施
した結果を第４表に示す。Example 9.10 and Comparative Example 3.4 Various changes were made to the thickness of the spacer that regulates the thickness during heat treatment in Example 1 (Example 9.10 and Comparative Example 3); Table 4 shows the results obtained in the same manner as in Example 1 except for changing the basis weight of the web (Comparative Example 4).
第 ４ 表
であったが、固綿の密度が低い比較例３の場合、へたり
やすいものとなった。また、厚さの不十分な比較例４の
場合、床づき感があり、クツション材としては不満足な
ものであった。As shown in Table 4, in the case of Comparative Example 3 where the density of the cotton was low, it was easy to set. In addition, in the case of Comparative Example 4, which had an insufficient thickness, it felt like it stuck to the floor and was unsatisfactory as a cushion material.
（発明の効果）
以上のように、本発明の固綿は、風合がソフトで、繰り
返し圧縮や高温雰囲気下圧綿に対しへたりにくい。その
ため、例えば、クツション詰め綿として用いたとき、当
りが柔らかで、衝撃を吸収するため、座り心地がよい。(Effects of the Invention) As described above, the firm cotton of the present invention has a soft texture and is resistant to deterioration due to repeated compression or compression under high temperature atmosphere. Therefore, when used as cushion stuffing, for example, it is soft to the touch and absorbs shock, making it comfortable to sit on.
また、使用経時でへたりが少なく、一定量上の厚さを有
するため、床づき感がなく、家具用詰め綿やベツド、自
動車シート用クツション材、敷布団として好適である。In addition, it does not set easily over time and has a certain thickness, so it does not feel like it sticks to the floor, making it suitable for use as stuffing for furniture, beds, cushioning materials for automobile seats, and mattresses.
第１図は、ＤＳＣにより測定される降温結晶化ピークを
示す模式図である。FIG. 1 is a schematic diagram showing a temperature-falling crystallization peak measured by DSC.
Claims (1)
炭素数４以上の直鎖脂肪族成分を含み、結晶融点が１１
０℃以上、２２５℃以下で、かつＤＳＣにより測定され
る降温結晶化ピークの高さ（ｂ）とＤＳＣにより測定さ
れる降温結晶化ピークの半価幅（ａ）との比（ｂ／ａ）
が０．２以上であるポリエステル系バインダー繊維で点
接合され、厚さが５ｍｍ以上で、密度が０．０１５ｇ／
ｃｍ＾２以上であることを特徴とするポリエステル固綿
。(1) The main polyethylene terephthalate fiber is
Contains a straight chain aliphatic component with 4 or more carbon atoms and has a crystal melting point of 11
Ratio (b/a) of the height (b) of the temperature-falling crystallization peak measured by DSC at a temperature of 0° C. or higher and 225° C. or lower and the half-width (a) of the temperature-lowering crystallization peak measured by DSC.
point-bonded with polyester binder fibers having a coefficient of 0.2 or more, a thickness of 5 mm or more, and a density of 0.015 g/
Polyester hard cotton characterized by having a diameter of cm^2 or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2244761A JPH04126856A (en) | 1990-09-13 | 1990-09-13 | Polyester solid wadding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2244761A JPH04126856A (en) | 1990-09-13 | 1990-09-13 | Polyester solid wadding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04126856A true JPH04126856A (en) | 1992-04-27 |
Family
ID=17123511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2244761A Pending JPH04126856A (en) | 1990-09-13 | 1990-09-13 | Polyester solid wadding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04126856A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009041143A (en) * | 2007-08-09 | 2009-02-26 | Nippon Ester Co Ltd | Staple fiber for nonwoven fabric, and staple fiber nonwoven fabric |
| JP2009062644A (en) * | 2007-09-06 | 2009-03-26 | Nippon Ester Co Ltd | Staple fiber nonwoven fabric |
| JP2009062666A (en) * | 2007-08-09 | 2009-03-26 | Nippon Ester Co Ltd | Staple fiber nonwoven fabric |
| JP2009108461A (en) * | 2007-08-09 | 2009-05-21 | Nippon Ester Co Ltd | Staple fiber nonwoven fabric |
| JP2009197382A (en) * | 2008-01-21 | 2009-09-03 | Nippon Ester Co Ltd | Staple fiber nonwoven fabric |
| JP2009197381A (en) * | 2008-01-21 | 2009-09-03 | Nippon Ester Co Ltd | Polyester conjugate filament nonwoven fabric |
| JP2009215662A (en) * | 2008-03-07 | 2009-09-24 | Nippon Ester Co Ltd | Staple fiber for nonwoven fabric and stape fiber nonwoven fabric |
| JP2009263839A (en) * | 2007-09-11 | 2009-11-12 | Nippon Ester Co Ltd | Polyester conjugated staple fiber |
| JP2009263838A (en) * | 2007-10-23 | 2009-11-12 | Nippon Ester Co Ltd | Polyester conjugated staple fiber |
-
1990
- 1990-09-13 JP JP2244761A patent/JPH04126856A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009041143A (en) * | 2007-08-09 | 2009-02-26 | Nippon Ester Co Ltd | Staple fiber for nonwoven fabric, and staple fiber nonwoven fabric |
| JP2009062666A (en) * | 2007-08-09 | 2009-03-26 | Nippon Ester Co Ltd | Staple fiber nonwoven fabric |
| JP2009108461A (en) * | 2007-08-09 | 2009-05-21 | Nippon Ester Co Ltd | Staple fiber nonwoven fabric |
| JP2009062644A (en) * | 2007-09-06 | 2009-03-26 | Nippon Ester Co Ltd | Staple fiber nonwoven fabric |
| JP2009263839A (en) * | 2007-09-11 | 2009-11-12 | Nippon Ester Co Ltd | Polyester conjugated staple fiber |
| JP2009263838A (en) * | 2007-10-23 | 2009-11-12 | Nippon Ester Co Ltd | Polyester conjugated staple fiber |
| JP2009197382A (en) * | 2008-01-21 | 2009-09-03 | Nippon Ester Co Ltd | Staple fiber nonwoven fabric |
| JP2009197381A (en) * | 2008-01-21 | 2009-09-03 | Nippon Ester Co Ltd | Polyester conjugate filament nonwoven fabric |
| JP2009215662A (en) * | 2008-03-07 | 2009-09-24 | Nippon Ester Co Ltd | Staple fiber for nonwoven fabric and stape fiber nonwoven fabric |
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