JPH031426B2 - - Google Patents
Info
- Publication number
- JPH031426B2 JPH031426B2 JP61114216A JP11421686A JPH031426B2 JP H031426 B2 JPH031426 B2 JP H031426B2 JP 61114216 A JP61114216 A JP 61114216A JP 11421686 A JP11421686 A JP 11421686A JP H031426 B2 JPH031426 B2 JP H031426B2
- Authority
- JP
- Japan
- Prior art keywords
- fibers
- split
- denier
- nonwoven fabric
- web
- 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.)
- Expired - Lifetime
Links
- 239000000835 fiber Substances 0.000 claims description 60
- 239000004745 nonwoven fabric Substances 0.000 claims description 21
- 239000002131 composite material Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 10
- 206010061592 cardiac fibrillation Diseases 0.000 claims description 9
- 230000002600 fibrillogenic effect Effects 0.000 claims description 9
- -1 polypropylene Polymers 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000004743 Polypropylene Substances 0.000 claims description 7
- 229920001155 polypropylene Polymers 0.000 claims description 7
- 229920000728 polyester Polymers 0.000 claims description 5
- 239000004677 Nylon Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 description 11
- 238000002347 injection Methods 0.000 description 10
- 239000007924 injection Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000009960 carding Methods 0.000 description 6
- 238000002788 crimping Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical compound OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000004401 flow injection analysis Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は肌触りの柔かい衛生材料などとして有
用な不織布の製造法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for producing a nonwoven fabric that is soft to the touch and useful as sanitary materials.
従来、衛生材料、特に紙おむつ、生理用ナプキ
ンなどのカバーストツク材にはポリエステル、ポ
リプロピレン等のスパンボンドが多く用いられて
いたが、近年、熱融着繊維による短繊維不織布が
急激に普及している。
Conventionally, spunbond materials such as polyester and polypropylene have been widely used for sanitary materials, particularly cover stock materials such as disposable diapers and sanitary napkins, but in recent years, short fiber nonwoven fabrics made of heat-fused fibers have become rapidly popular.
一方、セルロース系のスパンボンドは吸水性が
高く、ベトつきやすいためカバーストツク材とし
ては利用されず内部の吸収材として用いられてい
る。 On the other hand, cellulose-based spunbond has high water absorption and tends to become sticky, so it is not used as a cover stock material but is used as an internal absorbent material.
また、かかる不織布の製造方式に限定すること
なく、一般に不織布として1.5デニール程度の短
繊維を用いたものが工業的に製造されているが、
肌触りが硬く、出来るだけデニールを細くして肌
触りを柔かくすることが望まれていた。 In addition, without being limited to the manufacturing method of such nonwoven fabrics, nonwoven fabrics using short fibers of about 1.5 denier are generally manufactured industrially.
It was hard to the touch, and it was desired to make the denier as thin as possible to make it soft to the touch.
そこで、0.5デニールというような極細短繊維
を用いた不織布の製造も試みられているが、この
ような極細デニール短繊維はカーデイングが困難
で、その速度が上らないため生産性が低下するこ
とからコスト上昇を招き、経済的に不利である等
の問題点を有していた。
Therefore, attempts have been made to manufacture nonwoven fabrics using ultra-fine short fibers such as 0.5 denier, but such ultra-fine denier short fibers are difficult to card and the speed of carding cannot be increased, resulting in a decrease in productivity. This has led to problems such as increased costs and is economically disadvantageous.
本発明者等は以上のような問題点を解消すべく
鋭意研究を重ねた結果、本発明を完成するに至つ
た。 The inventors of the present invention have conducted extensive research to solve the above-mentioned problems, and as a result, have completed the present invention.
本発明は、互いに非相溶性の成分からなる分割
型複合繊維を延伸后の機械捲縮を賦与する工程に
於て分割フイブリル化させると同時に油剤を付着
させ得られた分割型複合繊維をカードにてウエブ
とした後、高圧液体流を噴射することにより、繊
維の分割フイブリル化を促進させてランダムな絡
み合いを行わせ一体構造とすることを特徴とする
不織布の製法である。
In the present invention, splittable conjugate fibers made of components that are incompatible with each other are made into split fibrils in the process of applying mechanical crimp after drawing, and at the same time, an oil agent is attached to the resulting splittable conjugate fibers to form a card. This is a method for producing a nonwoven fabric, which is characterized in that after the fibers are made into a web, a high-pressure liquid stream is jetted thereto to promote split fibrillation of the fibers and cause random entanglement to form an integral structure.
以下に本発明を更に詳細に説明する。 The present invention will be explained in more detail below.
本発明に於ける分割型複合繊維の横断面の具体
例としては、たとえば第１図ａ〜ｄに示すように
相互接着性を有しない２種或いはそれ以上の非相
溶性の熱可塑性重合体成分が交互に配列した断面
形状のものをいうが、複数のフイブリルに分配で
きるものであれば、これに限定されるものではな
い。 As a specific example of the cross section of the splittable conjugate fiber according to the present invention, for example, as shown in FIGS. It refers to a cross-sectional shape in which fibrils are arranged alternately, but the present invention is not limited to this as long as it can be distributed into a plurality of fibrils.
本発明に於ける互いに非相溶性の２種の熱可塑
性重合体成分の組合せとは、たとえばポリエステ
ルとポリプロピレン、ポリエステルとナイロン、
ナイロンとポリプロピレンのようなものをいう。 In the present invention, the combination of two mutually incompatible thermoplastic polymer components includes, for example, polyester and polypropylene, polyester and nylon,
It refers to things like nylon and polypropylene.
本発明で用いる分割型複合繊維は、特公昭39−
29636号公報、特開昭50−5650号公報等で公知の
方法によつて複合紡糸した未延伸糸を集束して延
伸后、機械捲縮を賦与しながら油剤を付着させ、
有限繊維長に切断して短繊維とすることにより得
ることが出来る。 The splittable composite fiber used in the present invention is
29636, Japanese Patent Application Laid-Open No. 50-5650, etc., the undrawn yarn composite-spun is bundled and drawn, and then an oil agent is applied while applying mechanical crimp.
It can be obtained by cutting into short fibers with a finite fiber length.
また、本発明の不織布を得る上では、分割型複
合繊維を湿熱または乾熱など適当な方法で熱処理
して沸水面積収縮率を20％以下にしておくことが
好ましいが、この熱処理はそれぞれ２種の成分の
接触面に熱収縮差による歪をもたらし後加工にお
ける分割フイブリル化を促進させる効果を惹起さ
せる。 In addition, in order to obtain the nonwoven fabric of the present invention, it is preferable to heat-treat the splittable composite fibers by an appropriate method such as wet heat or dry heat so that the boiling water area shrinkage rate is 20% or less. This causes distortion due to the difference in heat shrinkage on the contact surfaces of the components, which has the effect of promoting split fibrillation in post-processing.
分割型複合繊維の太さは１〜５デニール程度の
ものが用いられ、分割フイブリル化によつて形成
される少くとも一方の成分からなる分割フイブリ
ル化単繊維のデニールは0.5デニール以下が好ま
しく、更に好ましくは0.3デニール以下であり、
0.5デニールを超えると肌触りが硬いものとなり、
特に衛生材料用カバーストツク材としての適性が
失われる。 The thickness of the splittable composite fibers used is about 1 to 5 deniers, and the denier of the split fibrillated single fibers formed by split fibrillation, which consists of at least one component, is preferably 0.5 denier or less, and It is preferably 0.3 denier or less,
If it exceeds 0.5 denier, it will feel hard to the touch,
In particular, suitability as a cover stock material for sanitary materials is lost.
また、分割型複合繊維は捲縮賦与により20重量
％以上、80重量％以下の単繊維が完全に或いは一
部分割されることが好ましい。 Furthermore, it is preferable that 20% by weight or more and 80% by weight or less of single fibers of the splittable conjugate fibers be completely or partially split by crimping.
単繊維の分割フイブリル化が中途でとどまり完
全にばらばらにならない場合には未分割の太デニ
ール単繊維と完全な分割フイブリル化によつて形
成される細デニールフイブリル状繊維との中間に
複数の異つたデニールの繊維が混在することにな
るが、本発明の目的を達成するのに何ら差し支え
るものではない。 If split fibrillation of a single fiber remains in the middle and does not completely break apart, there are multiple differences between the unsplit thick denier single fiber and the fine denier fibrillar fiber formed by complete split fibrillation. Although fibers of a different denier are mixed, this does not pose any problem in achieving the object of the present invention.
本発明に於ける分割型複合繊維の分割セグメン
ト数は上述のデニール範囲を満足する様に決めれ
ば良く、単繊維中の一方の成分のセグメント数が
多い方がフイブリル化の利点が大きいが、実際に
セグメント数をそれほど多くすることは困難であ
り、通常４〜８のセグメント数とするのが繊維の
製造上の容易さからも有利である。また個々のセ
グメントのデニールは同一である必要はない。 The number of segments of the splittable composite fiber in the present invention may be determined to satisfy the above-mentioned denier range, and the greater the number of segments of one component in the single fiber, the greater the advantage of fibrillation. It is difficult to increase the number of segments so much, and it is usually advantageous to have a number of segments of 4 to 8 from the viewpoint of ease of manufacturing the fiber. Also, the denier of the individual segments need not be the same.
分割型複合短繊維の捲縮数は５〜25ケ／インチ
の範囲が好ましい。捲縮数が５ケ／インチ未満で
は分割が不充分となり、繊維同志のからみが弱く
なり圧縮回復性も低下する。逆に25ケ／インチを
超えると分割は進むが捲縮が細かくなりすぎると
同時に開繊し難くなり、ウエブにした時の嵩も小
さくなる。更に分割により異種ポリマーの接触面
が露出し、該接触面は油剤が付着していないこと
からカーデイング工程で大量の静電気が発生し、
著しいネツプを生じてしまう。しかるに捲縮賦与
工程で第３図ｅに示すクリンパー前滴下追油方
式、第３図ｆに示すクリンパーボツクス内油剤注
入方式、或いは第３図ｇに示すクリンパー后油剤
噴霧方式等により油剤を付着させるが付着方式に
ついてはこれらに限定されるものではない。 The number of crimps of the splittable composite short fibers is preferably in the range of 5 to 25 crimps/inch. If the number of crimps is less than 5 crimps/inch, the splitting will be insufficient, the intertwining of the fibers will be weakened, and the compression recovery property will also be reduced. On the other hand, if it exceeds 25 strands/inch, the splitting will proceed, but the crimps will become too fine, and at the same time it will be difficult to open, and the bulk when made into a web will be small. Furthermore, due to the separation, the contact surfaces of different polymers are exposed, and since the contact surfaces are not coated with oil, a large amount of static electricity is generated during the carding process.
This results in significant neps. However, in the crimping process, the oil is applied by the pre-crimper dripping oil addition method shown in Figure 3e, the oil injection method in the crimper box shown in Figure 3f, or the after-crimper oil spraying method shown in Figure 3g. However, the attachment method is not limited to these.
油剤成分としては制電性成分を主とし、その他
平滑性成分を加えたものがカーデイングに於て良
好な性能を示す。 The oil component mainly contains an antistatic component, with other smoothing components added, and exhibits good performance in carding.
かかる油剤成分の組合せにより、即ち平滑性成
分により開繊性が向上し、制電性成分により分割
後の静電気の発生が抑制されるものである。 The combination of such oil components, that is, the smoothing component improves fiber opening properties, and the antistatic component suppresses the generation of static electricity after splitting.
また、該時点では分割フイブリル化が中途でと
どまつている為、カーデイングに於て未分割の太
デニール繊維が分割フイブリル状繊維の綿沈み等
のトラブルを防止する効果を発揮することも特筆
し得る。 It is also worth mentioning that at this point, split fibrillation is still in the middle, so unsplit thick denier fibers are effective in preventing problems such as sinking of split fibrillar fibers during carding.
分割型複合短繊維の繊維長は15〜80mmの範囲が
好ましい。繊維長が15mm未満ではカーデイングに
よる分割フイブリル化の調整が困難となり、また
得られるウエブが綿切れして取扱いが不良とな
る。逆に繊維長が80mmを超えるとカーデイングで
分割したフイブリル繊維が切断されたり、或はネ
ツプを生じるなど工程上のトラブルが起り、均一
なウエブを得ることが難しくなる。 The fiber length of the splittable composite short fibers is preferably in the range of 15 to 80 mm. If the fiber length is less than 15 mm, it will be difficult to adjust the split fibrillation by carding, and the resulting web will break, making it difficult to handle. On the other hand, if the fiber length exceeds 80 mm, problems occur in the process such as the fibril fibers divided by carding being cut or neps occurring, making it difficult to obtain a uniform web.
本発明に於ては、かかる分割型複合短繊維を常
法によりカードにてウエブを形成させた後、更に
カード上りのウエブ中の分割型複合短繊維の分割
フイブリル化を促進させランダムな絡み合いを起
させるため、高圧液体流をウエブ表面に衝突させ
る。 In the present invention, after forming a web using a card using such splittable conjugate short fibers using a conventional method, the splittable conjugate short fibers in the web on the card are further promoted to split into fibrils to prevent random entanglement. To cause this, a high pressure liquid stream is impinged on the web surface.
液体流として使用する液体は水または温水が取
扱いの容易さから望ましい。 The liquid used as the liquid stream is preferably water or hot water because of ease of handling.
また、液体流の噴射ノズルの孔径は0.05〜1.0
mm、好ましくは0.1〜0.4mmであり、噴射圧力は20
〜80Kg／cm2であり、噴射孔とウエブの間隔は１〜
15cmが好適であり、間隔が広くなれば、噴射液体
流と空気が混じり合い分割交絡効果が小さくな
る。このようにして不織布の目付を10〜100ｇ／
m2の範囲にすれば肌触りの柔かい衛生材料などと
して有用な不織布が製造出来るのである。 Also, the pore diameter of the liquid flow injection nozzle is 0.05~1.0
mm, preferably 0.1-0.4mm, and the injection pressure is 20
~80Kg/ cm2 , and the distance between the injection hole and the web is 1~
15 cm is preferred; the wider the spacing, the more air will mix with the jetted liquid stream, reducing the splitting and entangling effect. In this way, the basis weight of the nonwoven fabric can be adjusted to 10 to 100 g/
m 2 range, it is possible to produce nonwoven fabrics that are soft to the touch and useful as sanitary materials.
以下に実施例を挙げて本発明を更に具体的に説
明する。 The present invention will be explained in more detail with reference to Examples below.
個有粘度0.63（オルソクロロフエノール中25℃）
のポリエチレンテレフタレートを第１成分とし、
MI15（ASTM Ｄ−1238、230℃）のポリプロピ
レンを第２成分として、１：２（容積比）の割合
で溶融複合紡糸し、1000ｍ／分で巻き取つて第１
図ａと同様の横断面を有する分割型複合未延伸糸
を得た。この未延伸糸を引き揃えて延伸温度80℃
で3.5倍にローラー延伸し単繊維繊度を2.0デニー
ルとした後、引続き押込捲縮機にて第３図ａに示
すクリンパー前滴下追油方式による油剤付着を行
ないつつ20ケ／インチの機械捲縮を賦与し、一旦
コンテナにトウとして引きとつた。このトウをオ
ートクレーブに移し、130℃の湿熱にて10分間弛
緩熱処理した後32mmの長さに切断した。この短繊
維をローラーカードにより60分／分の速度で閉繊
し、40ｇ／m2の目付を有するウエブとした後ロー
ル巻した。
Individual viscosity 0.63 (25℃ in orthochlorophenol)
with polyethylene terephthalate as the first component,
Polypropylene of MI15 (ASTM D-1238, 230°C) is used as the second component, and is melt-spun at a ratio of 1:2 (volume ratio) and wound at 1000 m/min to form the first
A split type composite undrawn yarn having a cross section similar to that shown in Figure a was obtained. This undrawn yarn is pulled together and stretched at a temperature of 80°C.
After stretching the single fiber by 3.5 times with a roller to make the single fiber fineness 2.0 denier, it was then mechanically crimped at a rate of 20 strands/inch using a push-crimping machine while applying oil using the pre-crimper drop-lubrication method shown in Figure 3a. was given and once taken as tow into a container. This tow was transferred to an autoclave, subjected to relaxation heat treatment at 130° C. for 10 minutes, and then cut into a length of 32 mm. The short fibers were closed using a roller card at a speed of 60 minutes/minute to form a web having a basis weight of 40 g/m 2 and then rolled.
次に第４図に示す高圧液体流噴射装置を用い、
ウエブ９をネツトコンベア１０上に供給し、ウエ
ブ９側から孔径0.15mm、孔間距離1.0mmの２ケの
噴射ノズル１１を用いて前段20Kg／cm2、後段60
Kg／cm2の圧力で水流噴射しウエブの構成繊維の分
割フイブリル化と結合化を行つた。なお、噴射使
用済みの水はサクシヨンボツクス１２で除去し
た。噴射ノズル１１とネツトコンベア１０の間隔
は30mmでネツトコンベア１０の速度は80ｍ／分で
あつた。 Next, using the high pressure liquid jet injection device shown in Fig. 4,
The web 9 is fed onto the net conveyor 10, and two injection nozzles 11 with a hole diameter of 0.15 mm and a distance between holes of 1.0 mm are used from the web 9 side to give an injection of 20 kg/cm 2 in the first stage and 60 kg/cm 2 in the second stage.
A water jet was applied at a pressure of Kg/cm 2 to split, fibrillate, and bond the constituent fibers of the web. Note that the water used for spraying was removed in a suction box 12. The distance between the injection nozzle 11 and the net conveyor 10 was 30 mm, and the speed of the net conveyor 10 was 80 m/min.
引き続きこの分割フイブリル化ウエブを沸水浴
１３中で収縮させ乾燥機１４にて乾燥し、巻取機
１５にて巻取り、45ｇ／m2の目付を有する不織布
を得た。原綿、カード上りのウエブ及び得られた
不織布を光学顕微鏡により観察すると、それぞれ
分割フイブリル化した複合短繊維を未分割の複合
短繊維が混在したものであり、原綿では約50重量
％、カード上りウエブでは約70重量％、不織布で
は約95重量％の単繊維が完全に或いは一部が分割
フイブリル化し、かつ未分割繊維と分割フイブリ
ル化繊維、分割フイブリル化繊維と分割フイブリ
ル化繊維が互いにランダムに絡み合つたものであ
つた。 Subsequently, this split fibrillated web was shrunk in a boiling water bath 13, dried in a dryer 14, and wound up in a winder 15 to obtain a nonwoven fabric having a basis weight of 45 g/m 2 . When the raw cotton, the carded web, and the obtained nonwoven fabric were observed under an optical microscope, it was found that split fibrillated composite short fibers were mixed with unsplit composite short fibers, and the raw cotton was approximately 50% by weight, while the carded web was approximately 50% by weight. Approximately 70% by weight of single fibers in nonwoven fabrics and approximately 95% by weight in nonwoven fabrics are completely or partially split fibrillated, and unsplit fibers and split fibrillated fibers, and split fibrillated fibers and split fibrillated fibers are randomly entangled with each other. It was a good match.
得られた不織布の物性を以下に示す。 The physical properties of the obtained nonwoven fabric are shown below.
１ 未分割単繊維のデニール 2.5デニール
２ 分割フイブリル化単繊維のデニール
ポリエチレンテレフタレート1.18デニール
ポリプロピレン 0.22デニール
３ 未分割単繊維の割合 ５％
４ 不織布の目付 45ｇ／m2
５ 不織布の厚さ 0.8mm
〔発明の効果〕
本発明によれば分割型複合短繊維を用いて効率
良くウエブとした後、高圧液体を噴射することに
より不織布となすことが出来、且つ得られた不織
布は主としてカバーストツク材などの衛生材料用
として優れた適性を有する等の格別の効果を奏す
る。1 Denier of unsplit single fibers 2.5 denier 2 Denier of split fibrillated single fibers Polyethylene terephthalate 1.18 denier Polypropylene 0.22 denier 3 Percentage of unsplit single fibers 5% 4 Weigh of non-woven fabric 45 g/m 2 5 Thickness of non-woven fabric 0.8 mm [Invention [Effect] According to the present invention, after efficiently forming a web using splittable composite short fibers, it can be made into a nonwoven fabric by jetting high-pressure liquid, and the obtained nonwoven fabric can be used mainly for sanitary materials such as cover stock materials. It has special effects such as having excellent aptitude for various purposes.
第１図ａ〜ｄは本発明で使用する分割型複合短
繊維の例の横断図、第２図は延伸装置の例の概略
図、第３図ｅ〜ｇは捲縮賦与工程に於ける油剤付
着方式を示しｅはクリンパー前滴下追油方式、ｆ
はクリンパーボツクス内油剤注入方式、ｇはクリ
ンパー后油剤噴霧方式の概略図、第４図は高圧液
体噴射装置の側面概略図である。
１，２……互いに非相溶性の重合体成分、３…
…延伸ローラー群、４……乾熱加熱缶、５……引
取りローラー群、６……機械捲縮用クリンパーロ
ール、７……機械捲縮用クリンパーボツクス、８
……トウコンテナー、９……ウエブ、１０……ネ
ツトコンベア、１１……高圧流体噴射用ノズル、
１２……サクシヨンボツクス、１３……沸水浴、
１４……乾燥機、１５……巻取機。
Figures 1 a to d are cross-sectional views of examples of splittable conjugate short fibers used in the present invention, Figure 2 is a schematic diagram of an example of a drawing device, and Figures 3 e to g are oil agents used in the crimping step. Indicates the adhesion method, e is dripping oil addition method before the crimper, f
4 is a schematic side view of the high-pressure liquid injection device. FIG. 4 is a schematic diagram of the oil injection system in the crimper box; 1, 2... mutually incompatible polymer components, 3...
...Stretching roller group, 4...Dry heat heating can, 5...Take-up roller group, 6...Crimper roll for mechanical crimping, 7...Crimper box for mechanical crimping, 8
... Tow container, 9 ... Web, 10 ... Net conveyor, 11 ... High pressure fluid injection nozzle,
12... Suction box, 13... Boiling water bath,
14... Dryer, 15... Winder.
Claims (1)
維を延伸后の機械捲縮を賦与する工程に於て分割
フイブリル化させると同時に油剤を付着させ、得
られた分割型複合繊維をカードにてウエブとした
後、高圧液体流を噴射することにより、繊維の分
割フイブリル化を促進させてランダムな絡み合い
を行わせ一体構造とすることを特徴とする不織布
の製法。 ２ 分割型複合短繊維がポリエステルとポリプロ
ピレン、ポリエステルとナイロン又はナイロンと
ポリプロピレンの組合せのいずれかで構成されて
いる特許請求の範囲第１項記載の不織布の製法。 ３ 分割型複合短繊維から分割フイブリル化され
た少くとも一方の成分からなる分割フイブリル化
単繊維のデニールが0.5デニール以下である特許
請求の範囲第１項記載の不織布の製法。[Scope of Claims] 1 Splitable composite fibers made of components that are incompatible with each other are made into split fibrils in the process of imparting mechanical crimp after drawing, and at the same time an oil agent is attached to the splittable composite fibers. A method for producing a nonwoven fabric, which comprises forming fibers into a web using a card, and then spraying a high-pressure liquid stream to promote splitting and fibrillation of the fibers, causing random entanglement to form an integral structure. 2. The method for producing a nonwoven fabric according to claim 1, wherein the splittable composite short fibers are composed of any combination of polyester and polypropylene, polyester and nylon, or nylon and polypropylene. 3. The method for producing a nonwoven fabric according to claim 1, wherein the split fibrillated single fibers made of at least one component split and fibrillated from splittable composite staple fibers have a denier of 0.5 denier or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61114216A JPS62268861A (en) | 1986-05-19 | 1986-05-19 | Production of nonwoven fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61114216A JPS62268861A (en) | 1986-05-19 | 1986-05-19 | Production of nonwoven fabric |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62268861A JPS62268861A (en) | 1987-11-21 |
| JPH031426B2 true JPH031426B2 (en) | 1991-01-10 |
Family
ID=14632124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61114216A Granted JPS62268861A (en) | 1986-05-19 | 1986-05-19 | Production of nonwoven fabric |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62268861A (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2554354B2 (en) * | 1988-02-23 | 1996-11-13 | ユニ・チャーム株式会社 | Absorbent manufacturing method |
| US5060621A (en) * | 1989-08-28 | 1991-10-29 | Ford Motor Company | Vapor purge control system |
| JPH0723577B2 (en) * | 1989-10-31 | 1995-03-15 | 日本バイリーン株式会社 | Non-woven |
| JP2904423B2 (en) * | 1991-02-20 | 1999-06-14 | 株式会社 クラレ | Curtain place |
| JPH11217757A (en) * | 1998-01-30 | 1999-08-10 | Unitika Ltd | Staple fiber nonwoven fabric and its production |
| JP4791156B2 (en) * | 2005-11-21 | 2011-10-12 | 日本エステル株式会社 | Split composite short fiber and short fiber nonwoven fabric |
| JP4791173B2 (en) * | 2005-12-22 | 2011-10-12 | 日本エステル株式会社 | Split composite short fiber and short fiber nonwoven fabric |
| JP4783162B2 (en) * | 2006-01-18 | 2011-09-28 | 日本エステル株式会社 | Split composite short fiber and short fiber nonwoven fabric |
| JP4787621B2 (en) * | 2006-01-23 | 2011-10-05 | 日本エステル株式会社 | Split composite short fiber and short fiber nonwoven fabric |
| JP4783176B2 (en) * | 2006-02-27 | 2011-09-28 | 日本エステル株式会社 | Split composite short fiber and short fiber nonwoven fabric |
| JP4783175B2 (en) * | 2006-02-27 | 2011-09-28 | 日本エステル株式会社 | Split composite short fiber and short fiber nonwoven fabric |
| JP4791212B2 (en) * | 2006-03-08 | 2011-10-12 | 日本エステル株式会社 | Split composite short fiber and short fiber nonwoven fabric |
| US9504610B2 (en) | 2013-03-15 | 2016-11-29 | The Procter & Gamble Company | Methods for forming absorbent articles with nonwoven substrates |
| US9205006B2 (en) | 2013-03-15 | 2015-12-08 | The Procter & Gamble Company | Absorbent articles with nonwoven substrates having fibrils |
| JP6286231B2 (en) * | 2014-02-28 | 2018-02-28 | ダイワボウホールディングス株式会社 | Fibril-forming composite fibers and fiber assemblies |
| CN116270032A (en) | 2014-09-10 | 2023-06-23 | 宝洁公司 | Nonwoven fibrous webs |
| BR112018067970A2 (en) | 2016-03-09 | 2019-02-12 | Procter & Gamble | absorbent article with activatable material |
| EP3592316B1 (en) | 2017-03-09 | 2023-12-06 | The Procter & Gamble Company | Thermoplastic polymeric materials with heat activatable compositions |
| CN110258022B (en) * | 2019-04-04 | 2021-02-26 | 江阴骏华纺织科技有限公司 | Preparation process of high-physical-property cowhide base fabric |
-
1986
- 1986-05-19 JP JP61114216A patent/JPS62268861A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62268861A (en) | 1987-11-21 |
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