JPS60215855A - Nonwoven fabric comprising chitin fiber - Google Patents

Nonwoven fabric comprising chitin fiber

Info

Publication number
JPS60215855A
JPS60215855A JP59070523A JP7052384A JPS60215855A JP S60215855 A JPS60215855 A JP S60215855A JP 59070523 A JP59070523 A JP 59070523A JP 7052384 A JP7052384 A JP 7052384A JP S60215855 A JPS60215855 A JP S60215855A
Authority
JP
Japan
Prior art keywords
nonwoven fabric
chitin
fibers
water
solution
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
Application number
JP59070523A
Other languages
Japanese (ja)
Inventor
木船 紘爾
山口 泰彦
安政 淳
野部 康夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unitika Ltd
Original Assignee
Unitika Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Unitika Ltd filed Critical Unitika Ltd
Priority to JP59070523A priority Critical patent/JPS60215855A/en
Publication of JPS60215855A publication Critical patent/JPS60215855A/en
Pending legal-status Critical Current

Links

Landscapes

  • Nonwoven Fabrics (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 本発明は、キチン繊維からなる不織布に関するものであ
る。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a nonwoven fabric made of chitin fibers.

キチンは甲殻類の外骨格等に含まれるアミノ多1a類で
あり、その精製されたものは生体との親和性に優れ、そ
の繊維から不織布を得て、創傷カバー材として使用する
ことが提案されている。
Chitin is an amino group 1a contained in the exoskeleton of crustaceans, and its purified material has excellent affinity with living organisms, and it has been proposed that nonwoven fabrics can be obtained from its fibers and used as wound covering materials. ing.

例えば、rProceedin@s of the 1
st rnt。
For example, rProceedin@s of the 1
strnt.

Conference on Chitin/Chit
osan (1977)Jの第300頁には、キチンの
不織布が提案されており。
Conference on Chitin/Chit
Osan (1977) J, p. 300, proposes a chitin nonwoven fabric.

そこにはキチン繊維を30+w+*の長さに切って水に
分散させ、水を除去して不織布を製造することが述べら
れている。その他、特開昭56−26049号公報や特
開昭57−16999号公報にもキチン繊維を用いた不
織布が記載されている。
There, it is stated that chitin fibers are cut into lengths of 30+w+*, dispersed in water, and the water is removed to produce a nonwoven fabric. In addition, JP-A-56-26049 and JP-A-57-16999 also describe nonwoven fabrics using chitin fibers.

しかし、これら従来から知られている不織布を創傷カバ
ー材として生体の損傷部等の感染防止等に使用する場合
、実際の使用に際して、ごわごわとして硬く、患部への
痛みが予想されるなど創傷カバー材として十分満足すべ
きものではなかった。
However, when these conventionally known nonwoven fabrics are used as wound covering materials to prevent infection of injured parts of living organisms, they tend to be stiff and hard and may cause pain to the affected area. It was not completely satisfactory.

本発明者等は、キチン繊維からなる不織布に関して軟ら
かく、患部等へ適用した際に痛みがなく。
The present inventors have discovered that the nonwoven fabric made of chitin fibers is soft and causes no pain when applied to affected areas.

容易に貼付けできる不織布を開発するべく鋭意検討を重
ねた結果1本発明に到達したものである。
The present invention was achieved as a result of extensive research to develop a nonwoven fabric that can be easily applied.

すなわち本発明は、太さが1デニ一ル未満のキチン繊維
からなることを特徴とするキチン繊維からなる不織布で
ある。
That is, the present invention is a nonwoven fabric made of chitin fibers characterized by being made of chitin fibers having a thickness of less than 1 denier.

本発明においてキチンとは、甲殻類、昆虫類等を塩酸処
理並びに力性ソーダ処理して、タン白及びカルシウム分
を分離精製することにより得られるポリN−アセチル−
D−グルコサミンあるいはその誘導体をいう。キチンの
誘導体としては9例えばキチンのアセチルアミノ基の一
部が脱アセチル化したいわゆるキトサンやエーテル化物
、=−ステル化物、カルボキシメチル化物、ヒドロキシ
エチル化物、0・エチル化物等があげられ、具体例とし
ては〔ポリ(N−アセチル−6−0(2’ −ヒドロキ
シエチル)−D−グルコサミン〕、ポリ〔N−アセチル
−6−0(エチル)−D−グルコサミン〕等があげられ
る。
In the present invention, chitin refers to poly(N-acetyl) obtained by treating crustaceans, insects, etc. with hydrochloric acid and hydrochloric acid, and separating and purifying the protein and calcium components.
Refers to D-glucosamine or its derivatives. Examples of chitin derivatives include so-called chitosan in which part of the acetylamino group of chitin is deacetylated, etherified products, =-sterified products, carboxymethylated products, hydroxyethylated products, 0-ethylated products, etc. Specific examples include: Examples include poly(N-acetyl-6-0(2'-hydroxyethyl)-D-glucosamine) and poly[N-acetyl-6-0(ethyl)-D-glucosamine].

本発明の不織布を製造するには、まず、キチンを所要の
溶媒に熔かしてドープとなし、キチンの繊維化を行うが
、その際、1デニ一ル未満の繊維を得ることが必要であ
る。キチンの溶媒としては。
To produce the nonwoven fabric of the present invention, first, chitin is melted in a required solvent to form a dope and the chitin is turned into fibers. be. As a solvent for chitin.

アセチルグルコサミン基の量の多いキチンの場合には1
例えば塩化リチウムを含むN−メチルピロリドン又はジ
メチルアセトアミド溶液、トリクロル酢酸とハロゲン化
炭化水素との混合溶液が好ましく使用することができ、
一方、グルコサミン基の量の多いキチン(一般にはキト
サンと呼称される。)の場合には酢酸等の酸水溶液が好
ましく使用することができる。得られたドープは1例え
ばステンレスネット等で濾過して未溶解分や異物番除い
た後、ギヤーポンプ等で輸送計量され、ノズルから例え
ば水、メタノール、エタノール、プロパツール、ブタノ
ール等のアルコールクp、アセトン等のケトン類等の凝
固液中に押し出されて凝固される。凝固された糸条は回
転ローラー等で引き取られ、また、さらに水洗等で糸条
中に含まれる溶剤を十分に除去した後、乾燥される。こ
のようにして本発明の不織布の製造に用いる65%R1
(で測定された値が1デニ一ル未満の繊維を得るが、1
M維の製造面から見れば0.2デニ一ル以上のものが好
ましく用いられる。次いで、これらの繊維から不織布を
得るには3例えば31〜201程度の長さに繊維をカッ
トした後、ポバール等のバインダへを含んだ水溶液中に
分散し、しかるのち繊維を分散させた状態で水を切り、
その残存積層物から水を絞って薄片とした後、乾燥を行
う等の方法で作成される。得られた不織布の厚みは水中
に分散するキチン繊維の量を増減することで調整するこ
とができる。
In the case of chitin, which has a large amount of acetylglucosamine groups, 1
For example, N-methylpyrrolidone or dimethylacetamide solution containing lithium chloride, a mixed solution of trichloroacetic acid and halogenated hydrocarbon can be preferably used,
On the other hand, in the case of chitin (generally called chitosan) which has a large amount of glucosamine groups, an aqueous acid solution such as acetic acid can be preferably used. The obtained dope is filtered with, for example, a stainless steel net to remove undissolved matter and foreign matter, and then transported and weighed using a gear pump, etc., and is passed through a nozzle into an alcoholic liquid such as water, methanol, ethanol, propatool, butanol, etc. It is extruded into a coagulating liquid such as ketones such as acetone and coagulated. The coagulated yarn is taken up by a rotating roller or the like, and after the solvent contained in the yarn is sufficiently removed by washing with water or the like, it is dried. In this way, the 65% R1 used in the production of the nonwoven fabric of the present invention
(to obtain fibers with a value of less than 1 denier, measured at 1
From the viewpoint of manufacturing M fibers, M fibers having a density of 0.2 denier or more are preferably used. Next, in order to obtain a nonwoven fabric from these fibers, the fibers are cut into lengths of, for example, 31 to 20 mm, and then dispersed in an aqueous solution containing a binder such as poval. Drain the water;
It is created by squeezing the water out of the remaining laminate to form thin pieces, and then drying them. The thickness of the obtained nonwoven fabric can be adjusted by increasing or decreasing the amount of chitin fibers dispersed in water.

このようにして得られた本発明の不織布は、1デニ一ル
以上の繊維から得られる従来の不織布に比べて1例えば
皮膚等の人体と接触させたとき非常にやわらかく、特に
、皮膚切開部等の筋肉組織と接触させたときに鈍痛がな
く、傷口とのフィツト性も非常に良好であり、キチン繊
維独特のヤング率が高いことに起因するごわごわした独
特の触感がなくなり、創傷カバー材として好適であるな
どの特長を有する。
The nonwoven fabric of the present invention thus obtained is extremely soft when it comes into contact with the human body, such as the skin, compared to conventional nonwoven fabrics obtained from fibers of 1 denier or more. There is no dull pain when it comes into contact with the muscle tissue of the skin, it fits very well to the wound, and it eliminates the stiff and unique texture caused by the high Young's modulus unique to chitin fibers, making it suitable as a wound covering material. It has the following characteristics.

以下実施例をあげて本発明をさらに具体的に説明する。The present invention will be explained in more detail below by giving examples.

実施例1 キチン粉末(共和油脂部)を100メツシユに粉砕し、
 lN−HClにて4℃で1時間処理し、さらに3%N
aOH液中で3時間、90℃で加熱処理し、再度キチン
粉末中に含まれるカルシウム分及び蛋白質を除去し、水
洗を繰り返し乾燥した。得られたキチンは、塩化リチウ
ムを8重量%含むジメチルアセトアミド溶液に0.2重
量%の濃度になるよう熔解した溶液の粘度が30℃にお
いて265センチボイズの値を示すものであった。この
キチンを7重量%の塩化リチウムを含んだジメチルアセ
トアミド溶液に7重量%になるように熔解した。得られ
たドープは1480メソシユ金網で濾過し、放置脱泡の
うえ、タンクに入れ加圧下でギヤーポンプにて輸送し1
口径0.06mm、200ホールのノズルより吐出量2
.2g/minの割合で60℃のブタノール液中に押し
出して凝固し、 10m/minの速度でローラーに引
き取った。得られた糸条を水で十分に洗浄したのち乾燥
して、R糸デニールが0.68デニールのフィラメント
を得た。
Example 1 Chitin powder (Kyowa Yushibu) was ground into 100 meshes,
Treated with 1N-HCl at 4°C for 1 hour, and then treated with 3% N-HCl.
The powder was heat-treated at 90° C. for 3 hours in an aOH solution to remove calcium and protein contained in the chitin powder, and then washed with water repeatedly and dried. The obtained chitin was dissolved in a dimethylacetamide solution containing 8% by weight of lithium chloride to a concentration of 0.2% by weight, and the viscosity of the solution was 265 centivoise at 30°C. This chitin was dissolved to a concentration of 7% by weight in a dimethylacetamide solution containing 7% by weight of lithium chloride. The obtained dope was filtered through a 1480 mesh wire mesh, left to defoam, and then placed in a tank and transported under pressure using a gear pump.
Discharge amount 2 from a 200-hole nozzle with a diameter of 0.06 mm
.. It was extruded into a butanol solution at 60° C. at a rate of 2 g/min to solidify, and then taken up by a roller at a speed of 10 m/min. The obtained yarn was thoroughly washed with water and then dried to obtain a filament having an R yarn denier of 0.68 denier.

比較のため吐出量を3.8g/min及び7.4 g 
/winとして、同様にして紡糸を行って単糸デ;、−
ルが1.2d (比較例1)と2.3d (比較例2)
のフィラメントを得た。
For comparison, the discharge amount was set to 3.8 g/min and 7.4 g.
As /win, spinning was performed in the same manner to obtain a single yarn.
1.2d (Comparative Example 1) and 2.3d (Comparative Example 2)
filament was obtained.

上記のように得られたフィラメントを8mmにカントし
、下記の方法で不織布を作成した。装置としては東洋精
機製作新製のシートマシンTAPPI−T205os−
71を使用した。まずキチン#Ih維0.5gと。
The filament obtained as described above was canted to 8 mm, and a nonwoven fabric was prepared in the following manner. The equipment is a new sheet machine TAPPI-T205os- manufactured by Toyo Seiki.
71 was used. First, 0.5g of chitin #Ih fiber.

バインダーとしてポバールバインダー(1デニールの水
溶性ビニロン繊維を3111mにカットしたちの)0.
05gを111の水に溶解分散させた。次いで。
As a binder, poval binder (1 denier water-soluble vinylon fiber cut into 3111 m length) 0.
05g was dissolved and dispersed in 111 of water. Next.

その分散液に水を加え全j161とし均一に繊維を分散
させシートマシンに入れた後、水を濾過除去した。水を
濾過除去したあとのシートマシン底部の残存物の一ヒ下
を定性濾紙ではさんだのちロールにはさんで水を除去し
た。さらに、プレス器を用いて3kg/aJの圧力で3
0秒間押圧したのちそれらを120〜130℃で6分間
乾燥を行って不織布を得た。
Water was added to the dispersion liquid to make the total amount of fibers uniformly dispersed.The dispersion liquid was put into a sheet machine, and the water was removed by filtration. After removing the water by filtration, the remaining portion at the bottom of the sheet machine was sandwiched between qualitative filter papers and then between rolls to remove water. Furthermore, using a press, 3 kg/aJ of pressure was applied.
After pressing for 0 seconds, they were dried at 120 to 130°C for 6 minutes to obtain a nonwoven fabric.

得られた3種の不織布について1曲げ剛性を次の要領で
測定した。すなわち幅0.5cn+、長さ2C…の試料
を、外部が固定され水平に設置された内径1cl11.
外径1.4cm、高さ0.3cmの円筒体の最上部の直
径上に置き、その筒体の内部を通じて下方から試料の中
央部にフックをかけ、そのフックをストレインゲージ(
100mg用)につなぎ、ストレインゲージを下方に5
cm/winの速度で移動させて試料がずり落ちるまで
引っ張り、その際ストレインゲージにかかる負荷の最大
値を読み取り、その値を断面積で除したものを曲げ剛性
とした。
The bending rigidity of the three types of nonwoven fabrics obtained was measured in the following manner. That is, a sample with a width of 0.5 cn+ and a length of 2 C... is placed in a container with an inner diameter of 1 cl11.
Place it on the diameter of the top of a cylinder with an outer diameter of 1.4 cm and a height of 0.3 cm, hook it through the inside of the cylinder to the center of the sample from below, and attach the hook to the strain gauge (
(for 100mg) and lower the strain gauge 5
The sample was moved at a speed of cm/win and pulled until it slipped off, the maximum value of the load applied to the strain gauge at that time was read, and the value divided by the cross-sectional area was defined as the bending rigidity.

各試料についてのシートの厚みと曲げ剛性値は表1に示
す通りであった。表1から明らかなように実施例の不織
布は特に曲げ剛性が低く、シートが軟らかかった。
The sheet thickness and bending rigidity values for each sample were as shown in Table 1. As is clear from Table 1, the nonwoven fabrics of Examples had particularly low bending rigidity, and the sheets were soft.

表1 シートの厚み(mm) 曲げ剛性(g/cat)実施例
1 0.16 375 比較例1 ’0.15 832 比較例2 0.16 ’ 933 さらに、創傷カバー材を仮定した試験として、家兎の背
部の皮膚を除去し、各試料を貼付けてみたところ、実施
例の不織布は家兎の皮膚を剥離した筋肉面にぴったりと
フィツトしたのに対し、比較例の不織布はごわごわとし
た感触で5筋肉面に完全にはフィツトせず、しわを形成
した。
Table 1 Sheet thickness (mm) Bending rigidity (g/cat) Example 1 0.16 375 Comparative example 1 '0.15 832 Comparative example 2 0.16 '933 Furthermore, as a test assuming a wound covering material, When we removed the skin from the rabbit's back and applied each sample, we found that the nonwoven fabric of the example fit snugly against the muscle surface from which the skin of the rabbit was removed, whereas the nonwoven fabric of the comparative example had a stiff feel. 5.It did not fit perfectly to the muscle surface and wrinkles were formed.

実施例2 0.2M酢酸水溶液に0.2重責%熔解したときの粘度
が20℃で32センチポイズであるキトサン(共和油脂
製)を、濃度が6重量%になるよう0.2M酢酸水溶液
に熔解し、得られた溶液を1480メツシコ、ステンレ
スネットにて濾過したところ粘m入溶液が得られた。こ
の溶液をギヤーポンプにて輸送し9口径0.611II
11,100ホールのノズルから、凝固液であるIN−
力性ソーダ水溶液に1.9g/ll1inの割合で吐出
し、−次凝固を行ったのち、再度IN−力性ソーダ水溶
液で約1時間凝固し、引続き稀塩酸により中和洗浄を行
った後乾燥した。得られた糸の単糸のデニールは0.5
3dであった。この糸条を10mmにカットし、実施例
1と同じ装置で不織布を作成した。その際、キトサン繊
維0.3gと。
Example 2 Chitosan (manufactured by Kyowa Yushi), which has a viscosity of 32 centipoise at 20°C when dissolved in a 0.2M acetic acid aqueous solution at 0.2% by weight, was dissolved in a 0.2M acetic acid aqueous solution to a concentration of 6% by weight. The resulting solution was filtered through a 1480 stainless steel net to obtain a viscous solution. This solution was transported using a gear pump and
From the 11,100-hole nozzle, the coagulating liquid IN-
After discharging into an aqueous sodium hydroxide solution at a rate of 1.9 g/ll1in and coagulating it, it was coagulated again with an aqueous sodium hydroxide solution for about 1 hour, followed by neutralization washing with dilute hydrochloric acid, and then drying. did. The single yarn denier of the obtained yarn is 0.5
It was 3d. This yarn was cut into 10 mm pieces, and a nonwoven fabric was produced using the same device as in Example 1. At that time, 0.3g of chitosan fiber.

バインダーとして実施例1で用いたポバールバインダー
0.05 gを11の水に溶液分散した後、これに水4
Ilを加えたものをシートマシンに入れた以外は実施例
1と同様な方法で不織布を作成した。
After dispersing 0.05 g of the poval binder used in Example 1 as a binder in 11 water, 4 ml of water was added to the solution.
A nonwoven fabric was produced in the same manner as in Example 1, except that the fabric containing Il was placed in a sheet machine.

得られた不織布はシートの厚みが0.13mmで1曲げ
剛性が320g/c+4であり、非常に柔軟性があり。
The obtained nonwoven fabric has a sheet thickness of 0.13 mm and a bending stiffness of 320 g/c+4, and is extremely flexible.

家兎の背部の皮膚を剥離した筋肉面に貼付けたところ、
ぴったりとフィツトし、良好な創傷カバー材として使用
することができた。
When the skin from the back of a domestic rabbit was attached to the peeled muscle surface,
It fit snugly and could be used as a good wound dressing.

特許出願人 ユ=亭力株式貴社Patent applicant: Yu-Tei Riki Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] (1)太さが1デニ一ル未満のキチン繊維からなること
を特徴とするキチン繊維からなる不織布。
(1) A nonwoven fabric made of chitin fibers characterized by being made of chitin fibers having a thickness of less than 1 denier.
JP59070523A 1984-04-06 1984-04-06 Nonwoven fabric comprising chitin fiber Pending JPS60215855A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59070523A JPS60215855A (en) 1984-04-06 1984-04-06 Nonwoven fabric comprising chitin fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59070523A JPS60215855A (en) 1984-04-06 1984-04-06 Nonwoven fabric comprising chitin fiber

Publications (1)

Publication Number Publication Date
JPS60215855A true JPS60215855A (en) 1985-10-29

Family

ID=13433973

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59070523A Pending JPS60215855A (en) 1984-04-06 1984-04-06 Nonwoven fabric comprising chitin fiber

Country Status (1)

Country Link
JP (1) JPS60215855A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005290610A (en) * 2004-03-31 2005-10-20 Akihiko Tanioka Nanoscale fiber and formed product of polysaccharides

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5626041A (en) * 1979-08-10 1981-03-13 Teijin Ltd Polyester type fiber knitted fabric

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5626041A (en) * 1979-08-10 1981-03-13 Teijin Ltd Polyester type fiber knitted fabric

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005290610A (en) * 2004-03-31 2005-10-20 Akihiko Tanioka Nanoscale fiber and formed product of polysaccharides
JP4526851B2 (en) * 2004-03-31 2010-08-18 明彦 谷岡 Polysaccharide nanoscale fibers and compacts

Similar Documents

Publication Publication Date Title
EP0199531B1 (en) Wound dressing
US4543410A (en) Absorbent cellulosic base structures
EP0036415B1 (en) Process for preparing a collagen product for medical and cosmetic use
DE2314689A1 (en) CELLULOSE MATERIALS ABSORBENT AND RETRACTIVE LIQUIDS AND METHOD OF MANUFACTURING THEREOF
EP0075791A1 (en) Absorbent wound dressing and processes for its production
US4744830A (en) Fibrous binder and a method for the preparation thereof
JPS60215855A (en) Nonwoven fabric comprising chitin fiber
JPH08224293A (en) Multilayered body for treating wound
JPH05209318A (en) Calcium alginate fiber having excellent liquid absorbing property and covering material for medical use
JPH10337302A (en) Tympanic membrane absence closure promoting material and manufacture thereof
JPH02268765A (en) Hyaluronate sheet and preparation thereof
JPS62170254A (en) Wound covering protective material
JPH0442019B2 (en)
JP2660255B2 (en) Alginate fiber, method for producing the same, and product thereof
CN116623473B (en) Sanitary moisture-absorbing composite paper and preparation method thereof
JPS63209661A (en) Wound protective material
JP2003265591A (en) Wound cover material and production method thereof
JP2996773B2 (en) Manufacturing method of chitin nonwoven fabric
JP2002219143A (en) Wound covering material
JPH1075998A (en) Cotton-like wound protective material
JPH08112340A (en) Absorber
JP2580136B2 (en) Wound covering protective material
JPS63211232A (en) Hemostatic agent
JPH04285565A (en) Regenerative and inductive material for periodontium
DE1932753A1 (en) Fibrous material with high wet-strength and - water absorption