JP2007197858A - Sterilization paper - Google Patents

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JP2007197858A
JP2007197858A JP2006016557A JP2006016557A JP2007197858A JP 2007197858 A JP2007197858 A JP 2007197858A JP 2006016557 A JP2006016557 A JP 2006016557A JP 2006016557 A JP2006016557 A JP 2006016557A JP 2007197858 A JP2007197858 A JP 2007197858A
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paper
sterilization
sterilized
zirconium carbonate
weight
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Rika Mochizuki
理加 望月
Tomoyuki Unno
朋行 海野
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Kohjin Holdings Co Ltd
Kohjin Co
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Kohjin Holdings Co Ltd
Kohjin Co
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Abstract

<P>PROBLEM TO BE SOLVED: To obtain sterilization paper suitable for a sterilized packaging material useful for sterilization of medical apparatus and materials, especially a sterilization bag of combination type obtained by combining paper with a film, having excellent air permeability, water resistance, no breakage of sterilization bag during high-pressure steam sterilization, excellent heat sealability and peelability and base paper for sterilization paper, useful for the sterilization paper. <P>SOLUTION: The sterilization paper is obtained by impregnating base paper for sterilization paper containing 0.01-1 pt.wt. of a water-soluble zirconium carbonate based on 100 pts.wt. of pulp fiber with an impregnant composed of ab acrylic copolymer as a main component. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は医療器材の滅菌に使われる滅菌包装材料に関し、特に紙とフィルムを組み合わせたコンビネーションタイプの滅菌袋に好適な滅菌紙及び該滅菌紙に用いられる滅菌紙用原紙に関する。   The present invention relates to a sterilization packaging material used for sterilization of medical equipment, and particularly to a sterilization paper suitable for a combination type sterilization bag in which paper and a film are combined, and a sterilization paper base paper used for the sterilization paper.

滅菌袋の種類としては、一般的に、紙単独のものと、紙とフィルムのコンビネーションタイプに大別される。紙とフィルムのコンビネーションタイプは、内包された医療器具の種類やサイズなどが見える点で便利さがあり、最近ではこのタイプの滅菌袋が増えてきている。また、滅菌袋の大きさも様々であるが、滅菌処理量の効率を向上させるためにサイズが大型化されてきている。
この様な滅菌袋を用いた医療用滅菌方法は、ガス滅菌法、高圧蒸気滅菌法、放射線滅菌法の3つに大別される。ガス滅菌法は、包装物を真空容器中に入れて容器内を減圧し、包装物内部の空気を排出させた後、エチレンオキサイドガスなどを容器内に満たして包装物内部にガスを浸透させて滅菌する。高圧蒸気滅菌法は、オートクレーブなどを用いて包装物を高温の蒸気に曝し、減圧と加圧を繰り返して滅菌する。放射線滅菌法は、放射線を照射して滅菌する。このうち、コスト及び安全性の面から高圧蒸気滅菌及びガス滅菌が多く用いられている。
In general, the types of sterilization bags are broadly classified into a single paper and a combination of paper and film. The combination of paper and film is convenient because it allows you to see the type and size of the medical device that is contained, and recently, this type of sterilization bag is increasing. Moreover, although the size of a sterilization bag is also various, in order to improve the efficiency of the amount of sterilization processing, the size has been enlarged.
Medical sterilization methods using such a sterilization bag are roughly classified into three methods: gas sterilization method, high-pressure steam sterilization method, and radiation sterilization method. In the gas sterilization method, the package is placed in a vacuum container, the inside of the container is depressurized, the air inside the package is exhausted, and then the inside of the package is infiltrated with gas filled with ethylene oxide gas or the like. Sterilize. In the high-pressure steam sterilization method, the package is exposed to high-temperature steam using an autoclave or the like, and sterilization is performed by repeatedly depressurizing and pressurizing. In the radiation sterilization method, radiation is sterilized. Of these, high-pressure steam sterilization and gas sterilization are often used from the viewpoint of cost and safety.

このため滅菌袋に使われる滅菌紙に要求される特性としては、特に、(1)ガス及び蒸気の通気性が良好であること、(2)ピンホールがないこと、(3)サイズ度及び湿潤強度が高く耐水性が良好なこと、(4)滅菌後に医療器材を取り出すため紙とフィルムを剥離したときに紙粉が発生しないこと(ピール性)、(5)ヒートシールができること、などである。   For this reason, the characteristics required for sterilized paper used in sterilization bags are, in particular, (1) good gas and vapor permeability, (2) no pinholes, (3) sizing and wetness. It has high strength and good water resistance, (4) no paper powder is generated when the paper and film are peeled to remove the medical device after sterilization (peel property), and (5) heat sealing is possible. .

従来の滅菌紙用原紙において、含浸後の通気性やヒートシール強度を良好にするためにパルプの叩解度を下げ低透気度の原紙を抄造してきたが、パルプ叩解度が低いと繊維間結合が弱くなり、また薬品の歩留まりも低下するため、原紙としてもある程度良好な耐水性やピール性を出すには、紙力増強剤の添加量を多くしなければならない。紙力増強剤を多量に添加して抄造すると、コストアップ、濾水性低下になる他、抄造時にプレスロールへ湿紙の表面の一部が取られてしまい、最悪の場合は湿紙がロールに付着して剥離しなくなることもある。   In conventional sterilized paper base paper, low-permeability base paper has been made by lowering the pulp beating degree in order to improve the air permeability and heat seal strength after impregnation. The yield of chemicals is reduced and the amount of the paper strength enhancer must be increased in order to obtain a certain level of water resistance and peelability as a base paper. When making paper with a large amount of paper strength enhancer, cost increases and drainage decreases, and part of the surface of the wet paper is taken to the press roll at the time of paper making. It may stick and not peel off.

このような欠点を改善するために、例えば、特許文献1には、アルミン酸塩を含有する基紙にアクリル系共重合体を塗工する滅菌紙が提案されている。アルミン酸塩を用いることにより紙力増強剤の効果を高めることができるが、pHが高いため、滅菌紙として要求される中性を維持するには性能が不十分であっても添加量を抑えなくてはならない。   In order to improve such a defect, for example, Patent Document 1 proposes a sterilized paper in which an acrylic copolymer is applied to a base paper containing an aluminate. The use of aluminates can enhance the effect of paper strength enhancers, but because of the high pH, the amount added is suppressed even if the performance is insufficient to maintain the neutrality required for sterilized paper. Must-have.

一方、水溶性のジルコニウム化合物を使用した紙も報告があり、例えば特許文献2には、両性あるいはカチオン性の紙力増強剤と併用した、ピッキング強度、濾水性、歩留効果等の優れた紙が報告されているが、主として炭酸カルシウム等の填料を含有した紙であり、滅菌紙に関する報告はない。
特許第3238861号 特開平3−167392号公報、特開平6−57685号公報
On the other hand, paper using a water-soluble zirconium compound has also been reported. For example, Patent Document 2 discloses a paper excellent in picking strength, drainage, yield effect, etc., used in combination with an amphoteric or cationic paper strength enhancer. However, this paper mainly contains fillers such as calcium carbonate, and there is no report on sterilized paper.
Japanese Patent No. 3238861 JP-A-3-167392 and JP-A-6-57685

本発明は、かかる従来の問題点を解決することにあり、大型の滅菌袋でも高圧蒸気滅菌時の破袋がなく、優れたヒートシール性を有し、ピール性も損なわず、かつ濾水性やプレスロール剥離性が良好で中性で抄紙できる滅菌紙を提供することを課題とする。   The present invention is to solve such a conventional problem, there is no bag breaking during high-pressure steam sterilization even in a large-sized sterilization bag, it has excellent heat sealability, peelability is not impaired, It is an object of the present invention to provide a sterilized paper having good press roll peelability and being neutral and capable of making paper.

本発明者らは鋭意研究の結果、滅菌紙抄造の際、水溶性炭酸ジルコニウム塩を使用することによりかかる課題が解決できることを見いだし、本発明を完成するに至った。
すなわち本発明は、
(1)パルプ繊維に対して水溶性炭酸ジルコニウム塩を含有した、紙とフィルムを組み合わせたコンビネーションタイプ用の滅菌紙用原紙、
(2)水溶性炭酸ジルコニウム塩の含有量が、パルプ繊維100重量部に対して0.01〜1重量部である、上記(1)記載の滅菌紙用原紙、
(3)上記(1)乃至(2)のいずれか一に記載の滅菌紙用原紙に、アクリル系共重合体を主成分とした含浸剤を含浸させた滅菌紙、
を提供するものである。
As a result of intensive studies, the present inventors have found that such a problem can be solved by using a water-soluble zirconium carbonate salt in the production of sterilized paper, and the present invention has been completed.
That is, the present invention
(1) A base paper for sterilized paper for a combination type containing a water-soluble zirconium carbonate salt with respect to pulp fibers and combining paper and film,
(2) The base paper for sterilized paper according to (1), wherein the content of the water-soluble zirconium carbonate salt is 0.01 to 1 part by weight with respect to 100 parts by weight of the pulp fiber,
(3) Sterile paper obtained by impregnating the base paper for sterilized paper according to any one of (1) to (2) above with an impregnating agent mainly composed of an acrylic copolymer,
Is to provide.

本発明の滅菌紙は、良好な通気性及び耐水性と、良好なヒートシール性及びピール性を兼ね備えた、優れた特性を有するものである。特に、炭酸ジルコニウム塩を用いることによりヒートシール強度に優れるため高圧蒸気滅菌時の破袋がなく、表面強度のみならず層間強度を高めることができ、含浸の効果と相乗して優れたピール性が得られる。しかもアルミン酸塩を使用する方法と比べ、炭酸ジルコニウム使用量が少量で紙力や耐水性が増強する。また、プレスロール剥離性も良好になるという効果も認められる。   The sterilized paper of the present invention has excellent properties that combine good air permeability and water resistance with good heat sealability and peelability. In particular, by using zirconium carbonate salt, it has excellent heat seal strength, so there is no bag breakage during high-pressure steam sterilization, it can increase not only the surface strength but also the interlayer strength, and has excellent peel properties in synergy with the effect of impregnation. can get. In addition, compared with the method using aluminate, the amount of zirconium carbonate used is small, and paper strength and water resistance are enhanced. Moreover, the effect that press roll peelability also becomes favorable is recognized.

以下、本発明を詳細に説明する。
本発明の滅菌紙用原紙(以下、単に原紙ともいう。)は、パルプ繊維を主体としたJISP8117による透気度が20秒以下、好ましくは5秒〜15秒のものが望ましい。このような原紙を得るためには、パルプ原料としてN材を50%以上、好ましくは70〜95%配合した木材パルプを用いて、叩解度を500〜700mlCSF、好ましくは550〜650mlCSFに叩解することが望ましい。叩解度が500mlCSF以下になると透気度が高くなりすぎる可能性がある。
Hereinafter, the present invention will be described in detail.
The base paper for sterilized paper of the present invention (hereinafter also simply referred to as base paper) has an air permeability of 20 seconds or less, preferably 5 to 15 seconds, according to JISP 8117 mainly composed of pulp fibers. In order to obtain such a base paper, beating to a beating degree of 500 to 700 ml CSF, preferably 550 to 650 ml CSF using wood pulp containing 50% or more of N material as a pulp raw material, preferably 70 to 95%. Is desirable. If the beating degree is 500 ml CSF or less, the air permeability may be too high.

原紙には、水溶性炭酸ジルコニウム塩が添加される。水溶性炭酸ジルコニウム塩としては、水溶性を示す限り、塩の種類や該粉末の粒子径、製法などは特に限定はされず、公知のものを採用できる。具体的には、炭酸ジルコニウムのアルカリ金属塩、炭酸ジルコニウムのアミン塩、炭酸ジルコニウムのアンモニウム塩、等が例示でき、市販品としては、例えば日本軽金属(株)製のベイコート20、等を挙げることができる。
添加量は、パルプ繊維(固形分)に対して、通常、0.01〜1重量%程度、好ましくは0.1〜1重量%、更に好ましくは0.2〜1重量%である。これ未満であると、十分な効果を発現せず、これを越えて用いると通気度が低くなりすぎる可能性がある。
水溶性炭酸ジルコニウム塩は、パルプスラリー中に直接添加する場合の他、該塩をあらかじめ水で希釈溶解しておき、該水溶液をパルプスラリー中に添加することもできる。
A water-soluble zirconium carbonate salt is added to the base paper. As a water-soluble zirconium carbonate salt, the kind of salt, the particle diameter of the powder, the production method, and the like are not particularly limited as long as water-solubility is exhibited, and known ones can be adopted. Specifically, an alkali metal salt of zirconium carbonate, an amine salt of zirconium carbonate, an ammonium salt of zirconium carbonate, and the like can be exemplified, and examples of commercially available products include Bay Coat 20 manufactured by Nippon Light Metal Co., Ltd. it can.
The addition amount is usually about 0.01 to 1% by weight, preferably 0.1 to 1% by weight, and more preferably 0.2 to 1% by weight with respect to the pulp fiber (solid content). If it is less than this, a sufficient effect will not be exhibited, and if it is used beyond this, the air permeability may be too low.
In addition to the case where the water-soluble zirconium carbonate salt is directly added to the pulp slurry, the salt may be previously diluted and dissolved in water, and the aqueous solution may be added to the pulp slurry.

本発明の滅菌紙用原紙は、水溶性炭酸ジルコニウム塩のほかに、乾燥紙力増強剤、湿潤紙力増強剤、サイズ剤等の添加剤を用いて抄紙されたものが好適である。
乾燥紙力増強剤は含浸後の表面強度、層間剥離強度及び引張り強度等の乾燥強度を十分に得るためのものである。湿潤紙力増強剤は、滅菌紙に必要な高い湿潤強度を得るためのものである。サイズ剤は滅菌紙として良好なサイズ性を付与するためのものである。
原紙に添加する乾燥紙力増強剤、湿潤紙力増強剤、サイズ剤としては、それぞれ目的の物性が得られるものであれば問題なく、公知のもので、添加量も公知の条件で十分である。
The base paper for sterilized paper of the present invention is preferably paper made using additives such as a dry paper strength enhancer, a wet paper strength enhancer, and a sizing agent in addition to the water-soluble zirconium carbonate salt.
The dry paper strength enhancer is for sufficiently obtaining dry strength such as surface strength after impregnation, delamination strength and tensile strength. The wet paper strength enhancer is for obtaining the high wet strength required for sterilized paper. The sizing agent is for imparting good sizing properties as sterile paper.
The dry paper strength enhancer, wet paper strength enhancer, and sizing agent added to the base paper are known as long as the desired physical properties can be obtained, and the addition amount is sufficient under known conditions. .

本発明の滅菌紙用原紙は、パルプ繊維に水溶性炭酸ジルコニウム塩、及び必要に応じて各種添加剤(薬品)を添加し、それ自体公知の湿式抄紙法で得ることができる。なお、抄紙系のPHは、滅菌紙として要求される中性を維持するために、pH6〜8.5程度の、いわゆる弱酸性〜アルカリ性で適用するのが好ましい。   The base paper for sterilized paper of the present invention can be obtained by a wet papermaking method known per se by adding water-soluble zirconium carbonate salt and various additives (chemicals) as required to pulp fibers. In addition, in order to maintain neutrality requested | required as a sterilized paper, it is preferable to apply PH of papermaking type | system | group by so-called weak acidity-alkalinity of about pH 6-8.5.

本発明では、更に、滅菌紙用原紙にアクリル系共重合体を主成分とした含浸剤を含浸した、滅菌紙が提供される。
アクリル系共重合体を主成分とした含浸剤としては、特に良好な耐水性を得るために、エマルジョンフィルムの接触角(対水)が65°以上、且つエマルジョンの機械的安定性が0.1%以下であるワックス含有コアシェル型アクリルワックス共重合体を主成分、少なくとも30重量%以上を含む、とした含浸剤の使用が好ましい。
ワックス含有コアシェル型アクリルワックス共重合体を主成分とする含浸剤の含浸量は、含浸後の紙全体の重量に対して1〜10重量%であり、特に好ましくは2〜5重量%である。含浸量が1重量%未満ではヒートシール性及びピール性が十分に得られず、また高圧蒸気滅菌時に滅菌袋が破袋する恐れがあり、10重量%を超えるとヒートシール性が損なわれる恐れがあり好ましくない。
なお、上述したエマルジョンの接触角とは、共重合体を含有したエマルジョンを3ミルアプリケーターでガラス板に塗布し、乾燥機にて140℃×5分熱処理して得られたフィルムと水との接触角を、液滴形成法により求めたものをいう。
また機械的安定性とは、マーロン試験機により、20%濃度に調整したエマルジョン50gに、10kg、1000rpm×10分のシェアーをかけ、その後200メッシュワイヤーで濾過した場合の析出量の固形分比をいう。
The present invention further provides a sterilized paper in which a base paper for sterilized paper is impregnated with an impregnating agent mainly composed of an acrylic copolymer.
As the impregnating agent mainly composed of an acrylic copolymer, in order to obtain particularly good water resistance, the contact angle (to water) of the emulsion film is 65 ° or more, and the mechanical stability of the emulsion is 0.1. It is preferable to use an impregnating agent containing at least 30% by weight of a wax-containing core-shell type acrylic wax copolymer having a content of at most 30% by weight.
The impregnation amount of the impregnating agent mainly composed of the wax-containing core-shell type acrylic wax copolymer is 1 to 10% by weight, particularly preferably 2 to 5% by weight, based on the weight of the whole paper after the impregnation. If the impregnation amount is less than 1% by weight, sufficient heat sealability and peelability cannot be obtained, and the sterilization bag may break during high-pressure steam sterilization. If it exceeds 10% by weight, the heat sealability may be impaired. There is not preferable.
The contact angle of the emulsion mentioned above refers to the contact between water and a film obtained by applying an emulsion containing a copolymer to a glass plate with a 3 mil applicator and heat treating at 140 ° C. for 5 minutes in a dryer. The corner is obtained by a droplet forming method.
Mechanical stability is the solid content ratio of the precipitation amount when 50 kg of emulsion adjusted to 20% concentration by a Marlon tester is subjected to a share of 10 kg, 1000 rpm × 10 minutes, and then filtered through 200 mesh wire. Say.

本発明における含浸は、原紙とフィルムをヒートシールして滅菌袋を作製するとき及び医療器材等を入れて滅菌する際の優れたヒートシール性と、滅菌後に医療器材等を取り出すときの良好なピール性を達成するため、また高圧蒸気滅菌時に滅菌袋を破袋させないために施すものであり、含浸方法としては、ディップ方式やサイズプレス方式を用いることができる。   The impregnation in the present invention has excellent heat-sealability when producing a sterilization bag by heat-sealing the base paper and a film and when sterilizing medical equipment and the like, and a good peel when taking out medical equipment after sterilization In order to achieve the properties, and to prevent the sterilization bag from being broken during high-pressure steam sterilization, a dipping method or a size press method can be used as the impregnation method.

本発明の滅菌紙は、滅菌袋の寸法や滅菌条件に合わせて含浸剤の含浸量と原紙透気度を変化させることにより、適当な透気度に調整することも可能である。
具体的には、滅菌紙として、高圧蒸気滅菌の場合は、透気度(JISP8117)は7〜100秒であり、好ましくは8〜20秒、特に好ましくは9〜15秒である。なお、放射線滅菌に使用する場合は100秒より大きくても問題はない。
本発明の滅菌紙は、紙とフィルムを組み合わせたコンビネーションタイプの滅菌袋に好適であるが、紙単独の滅菌袋に用いても何ら支障はなく、またいずれの滅菌方法にも適用できる。
The sterilized paper of the present invention can be adjusted to an appropriate air permeability by changing the impregnating amount of the impregnating agent and the air permeability of the base paper according to the size of the sterilization bag and the sterilization conditions.
Specifically, in the case of high-pressure steam sterilization as sterilized paper, the air permeability (JISP 8117) is 7 to 100 seconds, preferably 8 to 20 seconds, and particularly preferably 9 to 15 seconds. When used for radiation sterilization, there is no problem even if the time is longer than 100 seconds.
The sterilized paper of the present invention is suitable for a sterilization bag of a combination type in which paper and a film are combined, but there is no problem even if it is used for a sterilization bag of paper alone and can be applied to any sterilization method.

本発明の特徴は、滅菌紙用原紙において水溶性炭酸ジルコニウム塩を含有する点にある。
優れたピール性を得るためには、原紙に紙力増強剤を使用し、更に含浸することが有効であるが、効果を高めるためかかる薬剤を多量に使用すると通気性が損なわれ、高圧蒸気滅菌時に滅菌袋の破袋を起こしやすい。また、紙力増強剤を多量に添加して抄造すると、コストアップ、濾水性低下になる他、抄造時にプレスロールでの湿紙剥離性が悪化する。
本発明者らは、滅菌後に医療器材等を取り出す時に必要な特性であるピール性、高圧蒸気滅菌時の滅菌袋の破袋、抄造時のトラブル等について、ジルコニウムイオンと製紙用紙力増強剤が架橋反応し紙力を向上させ、また耐水性も向上させることに着目し検討したところ、表面強度のみならず層間強度も向上させること、ヒートシール強度も好ましいものであること、を見いだし、かかる知見をもとに課題を解決したものである。
A feature of the present invention is that a sterilized paper base paper contains a water-soluble zirconium carbonate salt.
In order to obtain excellent peel properties, it is effective to use a paper strength enhancer on the base paper and further impregnation. However, if a large amount of such a chemical is used to enhance the effect, the air permeability is impaired and high-pressure steam sterilization is performed. Sometimes sterilization bags break easily. In addition, when paper making is performed with a large amount of paper strength enhancer, cost increases and drainage decrease, and wet paper peelability with a press roll deteriorates during paper making.
The present inventors have reported that zirconium ions and paper-making paper strength enhancers are cross-linked with regard to peelability, which is a characteristic required when taking out medical equipment after sterilization, breakage of sterilization bags during high-pressure steam sterilization, troubles during papermaking, etc. As a result of examining and improving the paper strength by reacting and improving the water resistance, it was found that not only the surface strength but also the interlaminar strength was improved, and the heat seal strength was also favorable. This is a solution to the problem.

以下に、本発明に関わる実施例及び比較例を記載し、更に詳細に説明する。
実施例1
NBKP60%、LBKP40%のパルプ配合で550mlCSFに叩解し、パルプに対してアクリルアミド紙力増強剤(星光PMC社製ポリアクロンST13)1.0重量%、アルキルケテンダイマー(荒川化学工業社製サイズパインK−287)0.8重量%、エピクロル樹脂湿潤紙力増強剤(星光PMC社製WS−525)1.0重量%、炭酸ジルコニウムアンモニウム(日本軽金属社製ベイコート20)0.1重量%を添加して抄造し、坪量70g/mの本発明の滅菌紙用原紙を作製した。
Below, the Example and comparative example which concern on this invention are described, and it demonstrates in detail.
Example 1
Beating to 550 ml CSF with 60% NBKP and 40% LBKP pulp, 1.0% by weight of acrylamide paper strength enhancer (Polyaclon ST13 manufactured by Seiko PMC), alkyl ketene dimer (size Pine K- manufactured by Arakawa Chemical Industries, Ltd.) 287) 0.8 wt%, epichloro resin wet paper strength enhancer (WS-525, manufactured by Seiko PMC) 1.0 wt%, zirconium carbonate (Nippon Light Metal Co., Ltd. Baycoat 20) 0.1 wt% Paper was made to prepare a sterilized paper base paper of the present invention having a basis weight of 70 g / m 2 .

実施例2
NBKP60%、LBKP40%のパルプ配合で550mlCSFに叩解し、パルプに対してアクリルアミド紙力増強剤(星光PMC社製ポリアクロンST13)1.0重量%、アルキルケテンダイマー(荒川化学工業社製サイズパインK−287)0.8重量%、エピクロル樹脂湿潤紙力増強剤(星光PMC社製WS−525)1.0重量%、炭酸ジルコニウムアンモニウム(日本軽金属社製ベイコート20)0.1重量%を添加して、坪量70g/mの滅菌紙用原紙を抄造し、この原紙に、エマルジョンフィルムの接触角(対水)が67°、エマルジョンの機械的安定性が0.0027%のアクリル系共重合体(三井化学社製ボンロンXBS2002−2)50重量%、コアシェル型アクリルワックス共重合体(日本化工塗料社製PW−21B)50重量%、アセチレングリコール系界面活性剤(エアープロダクツジャパン社製サーフィノール485)1.5重量%を配合した含浸剤を、含浸後の重量に対して3重量%になるように含浸して、本発明の滅菌紙を作製した。
Example 2
Beating 550 ml CSF with 60% NBKP and 40% LBKP pulp, 1.0% by weight of acrylamide paper strength enhancer (Polyaclon ST13 made by Seiko PMC), alkyl ketene dimer (size pine K-made by Arakawa Chemical Industries) 287) 0.8% by weight, epichloric resin wet paper strength enhancer (WS-525 manufactured by Seiko PMC) 1.0% by weight, ammonium zirconium carbonate (Nippon Light Metal Co., Ltd. Baycoat 20) 0.1% by weight A base paper for sterilized paper having a basis weight of 70 g / m 2 was made, and on this base paper, an acrylic copolymer having an emulsion film contact angle (to water) of 67 ° and an emulsion mechanical stability of 0.0027% (Bonlon XBS2002-2 manufactured by Mitsui Chemicals Co., Ltd.) 50% by weight, core-shell type acrylic wax copolymer (PW manufactured by Nippon Kakko Paint Co., Ltd.) 21B) An impregnating agent containing 50% by weight and 1.5% by weight of an acetylene glycol surfactant (Surfinol 485 manufactured by Air Products Japan Co., Ltd.) was impregnated so as to be 3% by weight with respect to the weight after impregnation. Thus, the sterilized paper of the present invention was produced.

実施例3
実施例2において、炭酸ジルコニウムアンモニウム添加量を0.2重量%とした以外は、実施例2と同様にして本発明の滅菌紙を作製した。
Example 3
In Example 2, the sterilized paper of the present invention was produced in the same manner as in Example 2 except that the addition amount of ammonium zirconium carbonate was 0.2% by weight.

実施例4
実施例2において、炭酸ジルコニウムアンモニウム添加量を0.4重量%とした以外は、実施例2と同様にして本発明の滅菌紙を作製した。
Example 4
In Example 2, the sterilized paper of the present invention was produced in the same manner as in Example 2 except that the addition amount of ammonium zirconium carbonate was 0.4% by weight.

比較例1
実施例1において、炭酸ジルコニウムアンモニウム添加量を使用しなかった以外は、実施例1と同様にして滅菌紙用原紙を作製した。
Comparative Example 1
In Example 1, a sterilized paper base paper was produced in the same manner as in Example 1 except that the addition amount of ammonium zirconium carbonate was not used.

比較例2
実施例2において、炭酸ジルコニウムアンモニウム添加量を使用しなかった以外は、実施例2と同様にして滅菌紙を作製した。
Comparative Example 2
In Example 2, a sterilized paper was produced in the same manner as in Example 2 except that the addition amount of ammonium zirconium carbonate was not used.

比較例3
実施例2において、原紙に添加している炭酸ジルコニウムアンモニウムに代えて、アルミン酸ナトリウム(日本軽金属社製液体アルミン酸ソーダ)1.0重量%を用いた以外は実施例2と同様にして滅菌紙を作製した。
Comparative Example 3
In Example 2, sterilized paper was used in the same manner as in Example 2 except that 1.0% by weight of sodium aluminate (liquid sodium aluminate manufactured by Nippon Light Metal Co., Ltd.) was used instead of ammonium zirconium carbonate added to the base paper. Was made.

実施例、比較例で作製した原紙及び滅菌紙を評価した結果を表1に示した。
尚、各特性の評価方法は次の通りである。
(1)坪量:JISP8124による。
(2)透気度:JISP8117による。
(3)サイズ度:JISP8112による。
サイズ度は40秒以上あれば実用上問題ない。
(4)湿潤強度:JISP8135による。
湿潤強度は1.5kN/m以上あれば実用上問題ない。
(5)表面強度:JISP8129による。
Table 1 shows the results of evaluating the base paper and the sterilized paper prepared in Examples and Comparative Examples.
The evaluation method for each characteristic is as follows.
(1) Basis weight: According to JISP8124.
(2) Air permeability: According to JISP8117.
(3) Degree of size: According to JISP8112.
If the degree of size is 40 seconds or more, there is no practical problem.
(4) Wet strength: According to JISP8135.
If the wet strength is 1.5 kN / m or more, there is no practical problem.
(5) Surface strength: According to JISP8129.

(6)層間強度:幅15mmの紙片をテンシロン引張試験機で90度剥離して測定した。
(7)ヒートシール性:滅菌紙と、ポリエステルとポリプロピレンの複合フィルムのポリプロピレン面を、ヒートシーラーにより圧力1.5kg/cm、180℃、3秒の条件でヒートシールして、テンシロン引張試験機により、引張り速度100mm/minの条件で、180度剥離強さを測定した。
大袋としては幅350mm、長さ450mmが現在一般的であり、このときのヒートシール性は400〜600N/mが好適である。600N/m以上ではフィルム裂けが生じたり、内容物を取り出す作業が大変になる。
(6) Interlaminar strength: measured by peeling a piece of paper having a width of 15 mm by 90 degrees with a Tensilon tensile tester.
(7) Heat sealability: Tensilon tensile tester was prepared by heat-sealing the polypropylene surface of a sterilized paper and a polyester / polypropylene composite film with a heat sealer under conditions of pressure 1.5 kg / cm 2 , 180 ° C., 3 seconds. The 180 degree peel strength was measured under the conditions of a pulling speed of 100 mm / min.
As a large bag, a width of 350 mm and a length of 450 mm are currently common, and the heat sealability at this time is preferably 400 to 600 N / m. At 600 N / m or more, film tearing occurs and the work of taking out the contents becomes difficult.

(8)ピール性:ヒートシール性評価と同条件でヒートシールし、手で紙とフィルムを一気に剥がし、紙むけの状況を目視により以下の3段階で評価した。
○:良好なもの、△:やや問題を有するもの、×:実用上問題を有するもの
(9)濾水時間:TAPPI T205によって70g/mシートを作成する際、シートマシンの容器(円筒)にある350mmの標線からワイヤーまで排水する間の秒数を測定した。
(10)紙料のPH:原紙を抄紙機で抄造する際の、ヘッドボックス濃度と同じになるよう希釈した紙料のPHを測定した。
(11)プレスロールの湿紙剥離性:TAPPI T205によって70g/mシートを手抄き、クーチングし、湿紙を鏡面板に重ね、吸い取り紙で上下挟み、プレス機のゲージ圧3kgf/cmで3分間保持後湿紙をはがし、鏡面板付着物の重量を測定した。
(8) Peeling property: Heat sealing was performed under the same conditions as in the heat sealing property evaluation, and the paper and film were peeled off at once by hand, and the state of paper peeling was evaluated visually in the following three stages.
○: Good, Δ: Somewhat problematic, ×: Some practical problem (9) Drainage time: When preparing 70 g / m 2 sheet by TAPPI T205, in a container (cylinder) of a sheet machine The number of seconds between draining from a certain 350 mm mark to the wire was measured.
(10) PH of stock: The PH of the stock diluted to be the same as the head box concentration when the base paper was made with a paper machine was measured.
(11) Wet paper peelability of press roll: 70 g / m 2 sheet is hand-made by TAPPI T205, couched, wet paper is stacked on a mirror plate, and sandwiched with blotting paper, and gauge pressure of press machine is 3 kgf / cm 2. After holding for 3 minutes, the wet paper was peeled off and the weight of the specular plate deposit was measured.

Figure 2007197858
Figure 2007197858

本発明は、操業性が良好で、諸要求特性を満足した滅菌紙であるため、医療基材の滅菌に使用される各種滅菌袋、特に紙とフィルムを組み合わせたコンビネーションタイプの滅菌袋に好適に用いることができる。   Since the present invention is a sterilized paper having good operability and satisfying various required characteristics, it is suitable for various sterilization bags used for sterilization of medical base materials, particularly combination type sterilization bags combining paper and film. Can be used.

Claims (3)

パルプ繊維に対して水溶性炭酸ジルコニウム塩を含有した、紙とフィルムを組み合わせたコンビネーションタイプ用の滅菌紙用原紙。   Base paper for sterilized paper for a combination type containing a combination of paper and film, containing water-soluble zirconium carbonate salt for pulp fibers. 水溶性炭酸ジルコニウム塩の含有量が、パルプ繊維100重量部に対して0.01〜1重量部である、請求項1記載の滅菌紙用原紙。   The base paper for sterilized paper of Claim 1 whose content of water-soluble zirconium carbonate salt is 0.01-1 weight part with respect to 100 weight part of pulp fibers. 請求項1乃至2のいずれか1項記載の滅菌紙用原紙に、アクリル系共重合体を主成分とした含浸剤を含浸させた滅菌紙。   A sterilized paper obtained by impregnating the base paper for sterilized paper according to any one of claims 1 to 2 with an impregnating agent mainly composed of an acrylic copolymer.
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Cited By (8)

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JP2012527544A (en) * 2009-05-18 2012-11-08 シノコ・ケミカルス Improving the strength of paper and paperboard products
CN104532676A (en) * 2014-11-28 2015-04-22 南通宝田包装科技有限公司 Production technology of green and environmentally-friendly paper packaging bags
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012527544A (en) * 2009-05-18 2012-11-08 シノコ・ケミカルス Improving the strength of paper and paperboard products
WO2015099015A1 (en) * 2013-12-27 2015-07-02 旭化成メディカル株式会社 Membrane module device, package body, liquid processing system, steam sterilization method, and system configuration method
JPWO2015099015A1 (en) * 2013-12-27 2017-03-23 旭化成メディカル株式会社 Membrane module device, package, liquid processing system, steam sterilization method and system configuration method
US10384166B2 (en) 2013-12-27 2019-08-20 Asahi Kasei Medical Co., Ltd. Membrane module apparatus, packaging body, liquid treatment system, steam sterilization method and system constructing method
CN104532676A (en) * 2014-11-28 2015-04-22 南通宝田包装科技有限公司 Production technology of green and environmentally-friendly paper packaging bags
WO2016175299A1 (en) * 2015-04-30 2016-11-03 王子ホールディングス株式会社 Sterilization paper and sterilization package
JP2017020130A (en) * 2015-07-09 2017-01-26 王子ホールディングス株式会社 Sterilized paper and sterilized package
JP2017040015A (en) * 2015-08-18 2017-02-23 王子ホールディングス株式会社 Sterilization paper and sterilization package
JP2017179636A (en) * 2016-03-29 2017-10-05 株式会社巴川製紙所 Sterilized bag base paper and sterilized bag
JP2017179644A (en) * 2016-03-30 2017-10-05 特種東海製紙株式会社 Paper for sterilization

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