JPH03180586A - fiber sheet material - Google Patents
fiber sheet materialInfo
- Publication number
- JPH03180586A JPH03180586A JP1316256A JP31625689A JPH03180586A JP H03180586 A JPH03180586 A JP H03180586A JP 1316256 A JP1316256 A JP 1316256A JP 31625689 A JP31625689 A JP 31625689A JP H03180586 A JPH03180586 A JP H03180586A
- Authority
- JP
- Japan
- Prior art keywords
- polyester
- fiber
- section
- fibers
- shaped cross
- 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
- 239000000835 fiber Substances 0.000 title claims abstract description 67
- 239000000463 material Substances 0.000 title abstract description 9
- 229920000728 polyester Polymers 0.000 claims abstract description 51
- 238000002844 melting Methods 0.000 claims abstract description 13
- 230000008018 melting Effects 0.000 claims abstract description 11
- 239000002131 composite material Substances 0.000 claims description 12
- 230000035699 permeability Effects 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 6
- 229920001778 nylon Polymers 0.000 abstract description 2
- 229920002972 Acrylic fiber Polymers 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 5
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 3
- 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 2
- 229920001634 Copolyester Polymers 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002964 rayon Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- PAALZGOZEUHCET-UHFFFAOYSA-N 1,4-dioxecane-5,10-dione Chemical group O=C1CCCCC(=O)OCCO1 PAALZGOZEUHCET-UHFFFAOYSA-N 0.000 description 1
- LZFNKJKBRGFWDU-UHFFFAOYSA-N 3,6-dioxabicyclo[6.3.1]dodeca-1(12),8,10-triene-2,7-dione Chemical group O=C1OCCOC(=O)C2=CC=CC1=C2 LZFNKJKBRGFWDU-UHFFFAOYSA-N 0.000 description 1
- WSQZNZLOZXSBHA-UHFFFAOYSA-N 3,8-dioxabicyclo[8.2.2]tetradeca-1(12),10,13-triene-2,9-dione Chemical group O=C1OCCCCOC(=O)C2=CC=C1C=C2 WSQZNZLOZXSBHA-UHFFFAOYSA-N 0.000 description 1
- SFHBJXIEBWOOFA-UHFFFAOYSA-N 5-methyl-3,6-dioxabicyclo[6.2.2]dodeca-1(10),8,11-triene-2,7-dione Chemical group O=C1OC(C)COC(=O)C2=CC=C1C=C2 SFHBJXIEBWOOFA-UHFFFAOYSA-N 0.000 description 1
- ZYAMAPWXBALOIE-UHFFFAOYSA-N 5-methyl-3,6-dioxabicyclo[6.3.1]dodeca-1(12),8,10-triene-2,7-dione Chemical group O=C1OC(C)COC(=O)C2=CC=CC1=C2 ZYAMAPWXBALOIE-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
- 240000000907 Musa textilis Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- ILJSQTXMGCGYMG-UHFFFAOYSA-N triacetic acid Chemical compound CC(=O)CC(=O)CC(O)=O ILJSQTXMGCGYMG-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Nonwoven Fabrics (AREA)
- Paper (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は繊維シート状物に関し、更に詳しくは嵩高性に
富み、且つ通気性、透水性を有するポリエステル繊維シ
ート状物に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a fibrous sheet, and more particularly to a polyester fibrous sheet having high bulkiness, air permeability, and water permeability.
〔従来の技術及び発明が解決しようとする課題〕ポリエ
ステル繊維紙は柔軟な風合と均一な地合い、耐熱性、耐
酸性、耐油性、電気絶縁性、寸法安定性を有する特長か
ら衛生材料を初め工業材料等に用いられている。しかし
、従来のポリエステル繊維紙は工業用フィルターとして
は嵩高性が低く、通気性、透水性にも劣シ、更にバイン
ダーを使用するのでコストが高く紙強力が低いという欠
点があった。そこでポリエステル繊維紙のかかる欠点を
改良しようとする試みが提案されている。例えば特開昭
62−149999号公報にはポリエステル繊維を中空
にして紙の嵩高性を改良しようとする試みが提案されて
いるが、通気性、透水性は発揮できない。[Prior art and problems to be solved by the invention] Polyester fiber paper has a flexible texture, uniform texture, heat resistance, acid resistance, oil resistance, electrical insulation, and dimensional stability, so it is used as a sanitary material and other materials. Used in industrial materials, etc. However, conventional polyester fiber paper has low bulk for use as an industrial filter, has poor air permeability and water permeability, and also has the drawbacks of high cost and low paper strength due to the use of a binder. Therefore, attempts have been made to improve these drawbacks of polyester fiber paper. For example, JP-A-62-149999 proposes an attempt to improve the bulkiness of paper by making polyester fibers hollow, but this method fails to exhibit air permeability and water permeability.
また、特開昭59−175号公報にはバインダーm維と
して熱水可溶性のポリエステルバインダー繊維を使用し
てコストダウンを計b1紙強力を上げる試みが提案され
ている。Furthermore, Japanese Patent Laid-Open No. 59-175 proposes an attempt to reduce costs and increase the strength of b1 paper by using hot water-soluble polyester binder fibers as the binder m fibers.
しかし乍らこのバインダー繊維は木材バルブ、レーヨン
、ビニロン等との接着性が悪く、満足できるポリエステ
ルバインダー繊維は未だ得られていない。However, this binder fiber has poor adhesion to wood valves, rayon, vinylon, etc., and a satisfactory polyester binder fiber has not yet been obtained.
また、特開平1−118700号公報にはポリエステル
混抄紙が複屈折率20 X I Q”以下、繊度1.2
デニール以下のポリエステル短繊維を10重量係以上含
有させることによって紙強力を上げようとする試みも提
案されて偽る。しかし、この方法ではポリエステル混抄
紙の紙力は高いものの嵩高性等は向上しない。Furthermore, in Japanese Patent Application Laid-open No. 1-118700, polyester mixed paper has a birefringence of 20 X I Q" or less and a fineness of 1.2.
It has also been proposed to increase the strength of the paper by including polyester staple fibers of denier or less at a weight ratio of 10 or more. However, with this method, although the paper strength of the polyester-mixed paper is high, the bulkiness and the like are not improved.
本発明は、嵩高性、通気性及び透水性に優れた工業用フ
ィルター素材に好適な繊維シート状物を提供するもので
ある。The present invention provides a fiber sheet material suitable for use as an industrial filter material that has excellent bulk, air permeability, and water permeability.
本発明は、ポリエステルY型断面繊維を304以上、ポ
リエステルが中心部、低融点ポリエステルが先端部に配
されたポリエステル複合Y型断面繊維を10幅以上及び
その他の繊維を60憾以下混抄した繊維シート状物であ
る。The present invention is a fiber sheet in which 304 or more polyester Y-shaped cross-section fibers, 10 or more widths of polyester composite Y-shaped cross-section fibers in which polyester is arranged in the center and low melting point polyester is arranged at the tip, and other fibers are mixed in 60 or less widths. It is a kind of thing.
本発明で使用するY型断面繊維と複合Y型断面繊維はい
ずれも単糸繊度α5〜30デニール、繊維長3〜40■
であることが好ましい。単糸繊度が60デニールを越え
ると紙強力が低下し、逆に1lL5デニ一ル未満では製
糸が困難になると同時に混抄時の繊維分散性に支障が生
じる。繊維数については40mを越えると混抄時の繊維
分散性が悪くなり、3W未満では紙強力が発現しなくな
る。Both the Y-shaped cross-sectional fiber and the composite Y-shaped cross-sectional fiber used in the present invention have a single fiber fineness of α5 to 30 denier and a fiber length of 3 to 40 cm.
It is preferable that When the single yarn fineness exceeds 60 denier, the paper strength decreases, and conversely, when the single yarn fineness is less than 1 liter 5 denier, spinning becomes difficult and at the same time, fiber dispersibility during paper mixing is impaired. Regarding the number of fibers, if the number exceeds 40 m, the fiber dispersibility during paper mixing will deteriorate, and if the number is less than 3 W, the paper strength will not be developed.
Y聖断面*維を構成するポリエステルは融点が200℃
以上であシ、エチレンテレフタレート単位が全繰返し単
位当り80モル優以上、特に90モル4以上であること
が好ましい。Y cross section *The melting point of the polyester that makes up the fiber is 200℃
In conclusion, it is preferable that the ethylene terephthalate unit is more than 80 moles or more, particularly 90 moles or more, per total repeating units.
かかるポリエステルに於けるエチレンテレフタレート単
位以外の単位として、例えばエチレンイソフタレート単
位、プロピレンテレフタレート単位、ブチレンテレフタ
レート単位、フロピレンイソフタレート単位、エチレン
アジペート単位iどがある。Examples of units other than ethylene terephthalate units in such polyesters include ethylene isophthalate units, propylene terephthalate units, butylene terephthalate units, propylene isophthalate units, and ethylene adipate units.
一方、複合Y型断面繊維を構成する中心部のポリエステ
ルは、前述の融点200℃以上のものであり1先端部の
低融点ポリエステルはジカルボン酸成分としてモル比4
0〜80:60〜20のテレフタル酸とインフタル酸を
主体とするものである。On the other hand, the polyester in the center that constitutes the composite Y-shaped cross-section fiber has a melting point of 200°C or more as described above, and the low-melting polyester in the tip has a molar ratio of 4 as a dicarboxylic acid component.
It is mainly composed of terephthalic acid and inphthalic acid with a ratio of 0 to 80:60 to 20.
この範囲ようテレフタル酸の割合が多くiると融点が高
くなり過ぎ、逆にこの範囲よジインフタル酸の割合が多
くなると繊維が脆くなシ、シートにした場合の機械的強
度が失われて好1しくなり0
″また、本発明で用いるグリコール成分はエチレングリ
コールを主体とするものであるが、他のグリコール成分
を20モル鴫以下であれば含んで−ても良い。他のグリ
コール成分としてはジエチレングリコール、ネオペンチ
ルグリコール、1,4−シクロヘキサンジメタツール等
がある。If the proportion of terephthalic acid in this range is too high, the melting point will become too high, and conversely, if the proportion of diynphthalic acid in this range is too large, the fibers will become brittle and mechanical strength will be lost when made into a sheet. Furthermore, although the glycol component used in the present invention is mainly composed of ethylene glycol, it may contain other glycol components as long as it is 20 mol or less. Other glycol components include diethylene glycol. , neopentyl glycol, 1,4-cyclohexane dimetatool, etc.
本発明の低融点ポリエステルは加工時のエネルギーコス
ト低下の観点から融点2oo℃以下のものとする必要が
あシ、筐た繊維製造時の融着発生の観点から100℃以
上のものとする必要がある。従って、この様な要件を満
たすコポリエステル組成として前述のものが好!シb0
本発明で使用する複合Y型断百繊維に於ηて中心部のポ
リエステルと先端部の低融点ポリエステルの重量比は8
0:20乃至20:80゜好ましくは70:30乃至3
0 ニア0である。The low melting point polyester of the present invention must have a melting point of 200°C or less from the viewpoint of reducing energy costs during processing, and must have a melting point of 100°C or higher from the viewpoint of occurrence of fusion during the production of casing fibers. be. Therefore, the above-mentioned copolyester compositions are preferred as copolyester compositions that meet these requirements! shib0
In the composite Y-shaped broken fiber used in the present invention, the weight ratio of the polyester in the center and the low melting point polyester in the tip is 8.
0:20 to 20:80° preferably 70:30 to 3
0 Near 0.
本発明のポリエステル繊維シート状物に於ける混抄率は
ポリエステルY型繊維が30係以上、ポリエステル複合
Y型断面繊維が10係以上、その他の繊維が604以下
とする必要がある。The mixing ratio of the polyester fiber sheet of the present invention must be 30 parts or more for polyester Y-type fibers, 10 parts or more for polyester composite Y-shaped cross-section fibers, and 604 parts or less for other fibers.
ポリエステルY型繊維が3()4以下であると嵩高性に
富む通気性、透水性良好なシート状物が得られず、ポリ
エステル複合Y型断面繊維が10憾未満であるとシート
強力の発現性に劣る様になる。また混抄するその他の繊
維としては、ポリエステル、アクリル、ナイロン、ポリ
プロピレン等の合成繊維、ジアセテート、トリアセテー
ト等の半合成gli維、レーヨン等の再生4a雅、バル
ブ、麻等の天然繊維及びガラス、アスベスト等の無機繊
維が挙げられる。抄紙は通常の湿式抄造法でよく、抄紙
機も短網式、長網式或は円網式等従来から用いられてい
るものでよh0乾乾燥式はヤンキー式、多筒式の様な接
触型がよりが、特に制限はなり0乾燥温度は本発明のポ
リエステルM維シート状物の紙力を発揮させるには90
℃以上とする必要があり1好tL<は110℃以上であ
る。If the polyester Y-type fiber is less than 3()4, a sheet-like product with high bulkiness and good air permeability and water permeability cannot be obtained, and if the polyester composite Y-shaped cross-section fiber is less than 10, the sheet strength will not be developed. It becomes inferior to. Other fibers to be mixed include synthetic fibers such as polyester, acrylic, nylon, and polypropylene, semi-synthetic gli fibers such as diacetate and triacetate, recycled 4A fibers such as rayon, natural fibers such as bulb, linen, glass, and asbestos. Inorganic fibers such as The paper may be made by the usual wet paper making method, and the paper machine may be one that has been used in the past, such as a short screen type, fourdrinier type, or cylinder type. There are no particular restrictions on the shape of the paper.The drying temperature is 90°C in order to exhibit the paper strength of the polyester M fiber sheet of the present invention.
℃ or higher, and preferably tL< is 110°C or higher.
以下実施例によって本発明を具体的に説明するが、実施
例中のポリエステルN1.維シート状物の紙強力は定速
伸長型引張試験機を用いJl5−P−8113の方法に
従って測定した。The present invention will be specifically explained below with reference to examples. In the examples, polyester N1. The paper strength of the fiber sheet material was measured using a constant speed extension type tensile tester according to the method of Jl5-P-8113.
繊度15デニール、繊維長5■のポリエステルY型断面
繊維30重を憾と、繊度6デニール、繊維数5覇のポリ
エステル複合Y型断面繊維30重量係及びマニラ麻40
:i母4を混合してスラリーを調製し、短網型湿式抄紙
機にてスラリーを抄紙後ヤンキー式ドライヤーを通して
130℃で乾燥熱処理を行い、目付11397m”のポ
リエステルl或維シート状物を得た。30 weight polyester Y-shaped cross-section fiber with a fineness of 15 denier and a fiber length of 5 cm, a polyester composite Y-shaped cross-section fiber with a fineness of 6 denier and a fiber count of 5 cm, and a Manila hemp 40 weight
: A slurry was prepared by mixing Mother 4, and the slurry was made into paper using a short net type wet paper machine, and then subjected to dry heat treatment at 130°C through a Yankee dryer to obtain a polyester fiber sheet with a basis weight of 11,397 m''. Ta.
〔比較例1〕
ポリエステル複合Y型断面様維の代わジにポリエステル
複合円型断面繊維を使用した以外は実施例1と全く同様
に実施した。[Comparative Example 1] Comparative Example 1 was carried out in exactly the same manner as in Example 1 except that polyester composite circular cross-section fibers were used instead of polyester composite Y-shaped cross-section fibers.
〔比較例2〕
ポリエステルY型断面M維の代わりにポリエステル円型
断面繊維を使用した以外は実施例1と全く同様に実施し
た。[Comparative Example 2] Comparative Example 2 was carried out in exactly the same manner as in Example 1 except that polyester circular cross-section fibers were used instead of polyester Y-shaped cross-section M fibers.
〔比較例3〕
ポリエステルY型断面繊維の代わシにポリエステル円型
断面繊維を用い、ポリエステル複合Y型断面amの代わ
bにポリエステル複合円型断面繊維を使用した以外は実
施例1と全く同様に実施した。[Comparative Example 3] Completely the same as Example 1 except that polyester circular cross section fiber was used instead of polyester Y cross section fiber, and polyester composite circular cross section fiber was used instead of polyester composite Y cross section am. carried out.
実施例、比較例1〜3で得られたポリエステル繊維シー
ト状物の物性を第1表に示す。第1表から明らかな様に
、本発明の実施例によるポリエステル繊維シート状物は
紙力が高く、嵩高性に富み、通気性、透水性にも優れて
いた。Table 1 shows the physical properties of the polyester fiber sheets obtained in Examples and Comparative Examples 1 to 3. As is clear from Table 1, the polyester fiber sheets according to the examples of the present invention had high paper strength, high bulkiness, and excellent air permeability and water permeability.
第
表
〔発明の効果〕
本発明の繊維シート状物はY型断面のポリエステルNI
雌を用すて−るので嵩高性に、富み、加えてY型断面f
#1.Jlが形成する空隙にょシ通気性、透水性に抜群
の性能を発揮することから特に工業用フィルター素材と
して好適に使用し得る。Table [Effects of the Invention] The fiber sheet-like product of the present invention is made of polyester NI with a Y-shaped cross section.
Because it uses a female, it is bulky and has a Y-shaped cross section f.
#1. Since Jl exhibits outstanding performance in terms of air permeability and water permeability in the voids formed, it can be particularly suitably used as an industrial filter material.
Claims (1)
ル成分が中心部に配され、低融点ポリエステル成分が先
端部に配されたポリエステル複合Y型断面繊維を10%
以上、及びその他の繊維が60%以下混抄されている繊
維シート状物。30% or more of polyester Y-shaped cross-section fibers, 10% polyester composite Y-shaped cross-section fibers with a polyester component in the center and a low melting point polyester component in the tip.
A fiber sheet containing 60% or less of the above and other fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1316256A JPH03180586A (en) | 1989-12-05 | 1989-12-05 | fiber sheet material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1316256A JPH03180586A (en) | 1989-12-05 | 1989-12-05 | fiber sheet material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03180586A true JPH03180586A (en) | 1991-08-06 |
Family
ID=18075074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1316256A Pending JPH03180586A (en) | 1989-12-05 | 1989-12-05 | fiber sheet material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03180586A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100299747B1 (en) * | 1999-04-02 | 2001-09-22 | 강신중 | Non-electrostatic felt, method and apparatus therefor |
| CN103074807A (en) * | 2013-01-28 | 2013-05-01 | 浙江华邦特种纸业有限公司 | Making method of ultrathin low-weight sound-absorbing decoration paper |
-
1989
- 1989-12-05 JP JP1316256A patent/JPH03180586A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100299747B1 (en) * | 1999-04-02 | 2001-09-22 | 강신중 | Non-electrostatic felt, method and apparatus therefor |
| CN103074807A (en) * | 2013-01-28 | 2013-05-01 | 浙江华邦特种纸业有限公司 | Making method of ultrathin low-weight sound-absorbing decoration paper |
| CN103074807B (en) * | 2013-01-28 | 2015-11-18 | 浙江华邦特种纸业有限公司 | The manufacture method of ultra-thin light basis weight sound-absorbing facing paper |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102046860B (en) | Nonwovens produced from multicomponent fibers | |
| US4483976A (en) | Polyester binder fibers | |
| CN103180509A (en) | Paperboard or cardboard | |
| CN103180023A (en) | High efficiency filter | |
| CN103180508A (en) | High strength specialty paper | |
| JPH01501804A (en) | non-woven fiber products | |
| JP7148280B2 (en) | wet nonwoven fabric | |
| JPS63295712A (en) | Irregular cross-section heat-fused fiber | |
| JPH03180586A (en) | fiber sheet material | |
| JP2004181341A (en) | Wet nonwoven fabric for filter and polyester binder fiber for use therein | |
| JP4130035B2 (en) | Multi-divided hollow polyester fiber and woven / knitted fabric, artificial leather and nonwoven fabric using the fiber | |
| JP2512579B2 (en) | Bulk paper manufacturing method | |
| JP2833784B2 (en) | Bulk paper having dispersibility in water and production method thereof | |
| JPS61282500A (en) | Polyester fiber paper | |
| EP0432489A2 (en) | Heat-adhesive composite fiber and nonwoven fabric made by using same | |
| JPH02300398A (en) | Bulky paper | |
| JPH0684597B2 (en) | Polyester fiber paper | |
| JP2942276B2 (en) | Wiper paper | |
| JP2599756B2 (en) | Polyester fiber for papermaking | |
| JP2667836B2 (en) | Polyester blend paper and method for producing the same | |
| JP2528819B2 (en) | High wet strength paper and its manufacturing method | |
| JPH05331794A (en) | Cotton paper and its production | |
| JPH0524279B2 (en) | ||
| JPH0434018A (en) | Heat bonding conjugate fiber | |
| JPH02229294A (en) | Bulky paper and production thereof |