JPH03180583A - Neutral paper and paper tube using same - Google Patents
Neutral paper and paper tube using sameInfo
- Publication number
- JPH03180583A JPH03180583A JP31546989A JP31546989A JPH03180583A JP H03180583 A JPH03180583 A JP H03180583A JP 31546989 A JP31546989 A JP 31546989A JP 31546989 A JP31546989 A JP 31546989A JP H03180583 A JPH03180583 A JP H03180583A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- neutral
- pulp
- neutral paper
- naoh
- 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
- 230000007935 neutral effect Effects 0.000 title claims abstract description 21
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 25
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 24
- 239000000853 adhesive Substances 0.000 claims abstract description 11
- 230000001070 adhesive effect Effects 0.000 claims abstract description 11
- 239000000126 substance Substances 0.000 claims abstract description 11
- 239000000839 emulsion Substances 0.000 claims abstract description 5
- 238000010411 cooking Methods 0.000 claims description 8
- -1 Na_2CO_3 Inorganic materials 0.000 claims 1
- 238000010030 laminating Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 27
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract description 3
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 abstract 2
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 235000017557 sodium bicarbonate Nutrition 0.000 abstract 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 abstract 1
- 235000017550 sodium carbonate Nutrition 0.000 abstract 1
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 abstract 1
- 235000011121 sodium hydroxide Nutrition 0.000 abstract 1
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 abstract 1
- 235000010265 sodium sulphite Nutrition 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000000123 paper Substances 0.000 description 48
- 230000000694 effects Effects 0.000 description 13
- 239000005022 packaging material Substances 0.000 description 9
- 230000002411 adverse Effects 0.000 description 7
- 229920005610 lignin Polymers 0.000 description 5
- 239000011111 cardboard Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 206010070834 Sensitisation Diseases 0.000 description 3
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 3
- 230000008313 sensitization Effects 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000011121 hardwood Substances 0.000 description 2
- 239000002655 kraft paper Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 102100031260 Acyl-coenzyme A thioesterase THEM4 Human genes 0.000 description 1
- 241001474374 Blennius Species 0.000 description 1
- 229920002261 Corn starch Polymers 0.000 description 1
- 101000638510 Homo sapiens Acyl-coenzyme A thioesterase THEM4 Proteins 0.000 description 1
- 229920000881 Modified starch Polymers 0.000 description 1
- 239000004368 Modified starch Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 239000008120 corn starch Substances 0.000 description 1
- 238000000586 desensitisation Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229920005615 natural polymer Polymers 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000001235 sensitizing effect Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
- D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
- D21C3/12—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites sodium bisulfite
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
- D21H11/06—Sulfite or bisulfite pulp
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
- Packages (AREA)
- Wrappers (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、感光材料用包装材料に好適な中性紙およびこ
の中性紙を用いた紙管に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to neutral paper suitable as a packaging material for photosensitive materials and a paper tube using this neutral paper.
［従来の技術〕
従来、保護シート、紙管等の感光材料用包装材料に用い
られる紙類には、化学パルプから成るものが使用されて
きた（特公昭５８−４３７３０号公報）。[Prior Art] Conventionally, papers made of chemical pulp have been used for packaging materials for photosensitive materials such as protective sheets and paper tubes (Japanese Patent Publication No. 58-43730).
上述した従来の紙類は、化学パルプから成るので木材か
らの歩留りが低く、非常に高価なものになっていた。Since the above-mentioned conventional papers are made of chemical pulp, the yield from wood is low, making them very expensive.
ところで高収率パルプは安価でかつ剛度に優れているの
で板紙等の原料に広く使用されている。By the way, high-yield pulp is inexpensive and has excellent stiffness, so it is widely used as a raw material for paperboard and the like.
この中には単に機械的処理による機械パルプ（ＧＰ、
ＲＧＰ、ＴＭＰ）と若干の化学処理を伴う半化学パルプ
（ＣＧＰ、ＳＣＰ、 ＣＴＭＰ ）がある。This includes mechanical pulp (GP,
RGP, TMP) and semi-chemical pulps (CGP, SCP, CTMP) with some chemical treatment.
前者の機械パルプはセルロース以外にリグニン及び木材
の持っている樹脂抽出分が含まれており感光材料用包装
材料には基本的に不適当である。The former mechanical pulp contains lignin and resin extracted from wood in addition to cellulose, and is basically unsuitable for use as a packaging material for photosensitive materials.
又後者の半化学パルプもリグニンを多量に含むため、感
光材料用包装材料には不適当と考えられていた。したが
って、半化学パルプは感光材料用包装材料には全く用い
られていなかったし、半化学パルプを感光材料用包装材
料に用いようとする試みも全くされていなかった。Furthermore, the latter semi-chemical pulp also contains a large amount of lignin and was considered unsuitable for use as a packaging material for photosensitive materials. Therefore, semi-chemical pulp has never been used as a packaging material for photosensitive materials, and no attempt has been made to use semi-chemical pulp as a packaging material for photosensitive materials.
また、本発明者が、従来の半化学パルプから成る紙を試
験的に感光材料用包装材料に用いた場合も、感光材料に
かぶり等の悪影響が発生し使用できなかった。Further, when the present inventor experimentally used paper made of conventional semi-chemical pulp as a packaging material for photosensitive materials, the paper could not be used due to adverse effects such as fogging on the photosensitive materials.
本発明は、以上の問題点を解決し、安価でかつ感光材料
に悪影響を与えない中性紙およびこれを用いた紙管を提
供することを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and provide a neutral paper that is inexpensive and does not adversely affect photosensitive materials, and a paper tube using the same.
本発明者は、上記目的を達成するために、半化学パルプ
の高収率性に着目し、この半化学パルプを用いた紙を、
感光材料に悪影響を与えないようにすることにより、感
光材料用包装材料に好適で安価な紙を提供しようとする
ものである。In order to achieve the above object, the present inventor focused on the high yield of semi-chemical pulp, and produced paper using this semi-chemical pulp.
The present invention aims to provide inexpensive paper that is suitable for packaging materials for photosensitive materials by avoiding adverse effects on the photosensitive materials.
本発明者は、半化学パルプを用いた紙の感光材料に与え
る悪影響について研究し、感光材料に悪影響を与えない
半化学パルプを用いた紙を見出した。The present inventor has studied the adverse effects of paper using semi-chemical pulp on photosensitive materials, and has discovered paper using semi-chemical pulp that does not have an adverse effect on photosensitive materials.
すなわち、半化学パルプの蒸解薬品としては、ＮａｚＳ
、 ＮａｚＳＯｓ、ＮａｚＣＯｓ、ＮａＯＨ，ＮａＨＣ
Ｏｓ、ＮａＨＳＯ，等が、単独または組み合わせて用い
られているが、Ｎａ ！Ｓを用いたとき感光材料にかぶ
りが発生し使用できなかった。That is, as a cooking chemical for semi-chemical pulp, NazS
, NazSOs, NazCOs, NaOH, NaHC
Os, NaHSO, etc. have been used alone or in combination, but Na! When S was used, fogging occurred on the photosensitive material and it could not be used.
また、蒸解薬品として中性亜硫酸法のＮａ、ＳＯ，とＮ
ａｔＣＯｓを組合わせて用いた場合、カラー印画紙に対
して増感の影響が認められた。このことは出来上がった
紙が酸性を示すことが原因と考えられる。In addition, Na, SO, and N are used as cooking chemicals in the neutral sulfite process.
When used in combination with atCOs, a sensitizing effect was observed on color photographic paper. This is thought to be due to the acidity of the finished paper.
本発明者は、カラー印画紙に増感を与える酸性の範囲に
ついて研究し、ｐＨ６以上のとき増感の影響が容認でき
る程度に少なく、特に、９１１７以上のとき増感の影響
がほとんどないことを見出した。The present inventor has studied the acidic range that sensitizes color photographic paper, and has found that when the pH is above 6, the effect of sensitization is acceptably small, and in particular, when the pH is above 9117, there is almost no effect of sensitization. I found it.
さらに、蒸解薬品としてソーダ法のＮａＯＨとＮａ、Ｃ
Ｏｌを組合わせて用いた場合、カラー印画紙に対して減
感の影響が認められた。このことは出来上がった紙がア
ルカリ性を示すことが原因と考えられる。本発明者は、
カラー印画紙に減感を与えるアルカリ性の範囲について
研究し、ｐＨ９以下のとき減感の影響が容認できる程度
に少なく、特に、ｐＨ８，５以下のとき減感の影響がほ
とんどないことを見出した。Furthermore, as cooking chemicals, NaOH, Na, and C are used in the soda process.
When used in combination with Ol, a desensitizing effect was observed on color photographic paper. This is thought to be due to the alkaline nature of the finished paper. The inventor is
We have studied the range of alkalinity that desensitizes color photographic paper, and have found that when the pH is below 9, the desensitizing effect is acceptably small, and in particular when the pH is below 8.5, there is almost no desensitizing effect.
本発明は、以上の研究の結果初めてなされたもので、中
性紙が、蒸解薬品にＮａＯＨ，Ｎａ、ＣＯ，、ＮａＨＣ
Ｏ，、ＮａｚＳＯｓおよびＮａＨＳＯ，のいずれか又は
２以上を組合せで用いた収率６５〜９５％の木材パルプ
を２０〜１００含み、ｐＨが６〜９であることを特徴と
して構成されている。The present invention was made for the first time as a result of the above-mentioned research.
It is characterized by containing 20 to 100 wood pulp with a yield of 65 to 95% using any one or a combination of two or more of O, NazSOs, and NaHSO, and having a pH of 6 to 9.
本発明の中性紙に用いるパルプは、上述した所定の木材
パルプが１００％であってもよいが、多量のリグニンに
よる脆弱さ、および抄紙時の紙切れを防止するために、
ＵＫＰ （未晒クラフトパルプ）等を併用してもよい、
また、本発明の木材パルプは、半化学パルプであるので
リグニンを多量に含んでいる。したがって、本発明の木
材パルプの量を多くすると、不透明度が高くなり遮光性
が求められる製品には好ましい。The pulp used for the neutral paper of the present invention may be 100% of the above-mentioned predetermined wood pulp, but in order to prevent brittleness due to a large amount of lignin and paper breakage during paper making,
UKP (unbleached kraft pulp) etc. may be used in combination.
Furthermore, since the wood pulp of the present invention is a semi-chemical pulp, it contains a large amount of lignin. Therefore, increasing the amount of the wood pulp of the present invention increases opacity, which is preferable for products requiring light-shielding properties.
中性紙をｐＨ６〜９に調整するには、ｐＨを高める場合
にはＮａ（［、）［ＯＨその他のアルカリが用いられる
がＮａＯＨが最も望ましい、又、ｐＨを低くするために
は硫酸、塩酸、酢酸など各種の酸又は硫酸アルミニウム
なと水溶液で酸性を呈する塩類が用いられるが硫酸アル
ミニウムが最も望ましい。To adjust the pH of neutral paper to 6 to 9, Na([,)[OH and other alkalis are used to increase the pH, but NaOH is the most preferable, and to lower the pH, sulfuric acid and hydrochloric acid are used. Various acids such as acetic acid or salts that exhibit acidity in aqueous solution such as aluminum sulfate are used, but aluminum sulfate is most preferred.
また、感光材料の種類によっては影響の受は易さが鈍い
ものがあり、この場合には、より経済性と省資源の目的
で、段ボール故紙、晒クラフト故紙、脱墨パルプ等を併
用することができる。これらの場合、添加薬品が実質的
に感光材料に対して極めて影響の軽微なものであるか、
または離解の工程で洗い流されてしまうものに限られる
。In addition, depending on the type of photosensitive material, there are some that are less susceptible to the effects, and in this case, used corrugated cardboard, bleached kraft waste paper, deinked pulp, etc. may be used in combination for the purpose of being more economical and saving resources. I can do it. In these cases, whether the additive chemicals have a very minimal effect on the photosensitive material, or
Or it is limited to those that are washed away during the disintegration process.
中性紙は、坪量が１００〜８００ｇ／ｒｄの範囲が一般
的であり、２００〜６００ｇ／ ｒｒｆの範囲が多い。Neutral paper generally has a basis weight in the range of 100 to 800 g/rd, and often in the range of 200 to 600 g/rrf.
中性紙の抄紙の方法は特に限定されないが、厚紙の場合
は、丸網により多層抄きを行う場合があり、この時変性
澱粉、コーンスターチ等を層間強度を改良するために添
加することが好ましい。The paper-making method for neutral paper is not particularly limited, but in the case of cardboard, multilayer papermaking may be performed using a circular screen, and it is preferable to add time-modified starch, corn starch, etc. to improve interlaminar strength. .
本発明の紙管は、上述した中性紙を用い、ｐＨ６〜９の
エマルジョン接着剤型または水溶性型接着剤で貼り合わ
せて形成されている。The paper tube of the present invention is formed by bonding the neutral paper described above with an emulsion adhesive or water-soluble adhesive having a pH of 6 to 9.
接着剤のｐＨが６未満または９を越えると、上述した中
性紙の場合と同様に、容認できない程度の増感または減
感が発生する。If the pH of the adhesive is less than 6 or greater than 9, an unacceptable degree of sensitization or desensitization will occur, as in the case of acid-free paper discussed above.
エマルジョン接着剤型 リアクリル、ＥＶＡ、ＳＢＲ等がある。emulsion adhesive mold There are real acrylic, EVA, SBR, etc.
水溶性型接着剤は、澱粉、海藻、タンパク質等の天然高
分子、セルロース、澱粉等の変性物、ＰＶＡ、ポリアク
リル酸ソーダ等の合成物等がある。Examples of water-soluble adhesives include natural polymers such as starch, seaweed, and proteins, modified products such as cellulose and starch, and synthetic materials such as PVA and sodium polyacrylate.
本発明の紙管は、帯状感光材料の他、各種紙、箔、織物
等にも用いられる。The paper tube of the present invention can be used not only for strip-shaped photosensitive materials but also for various papers, foils, textiles, and the like.
また、本発明の中性紙は、上述した紙管の他、感光材料
の保護を目的とする保護シート、箱等各種製品の包装材
料に用いられる。In addition to the above-mentioned paper tubes, the neutral paper of the present invention can be used as packaging materials for various products such as protective sheets and boxes for the purpose of protecting photosensitive materials.
本発明の中性紙は、収率の大きい木材パルプを用いるこ
とにより安価になり、また所定の蒸解薬品を用いた木材
パルプを用い、かつｐｏを６〜９に調整することにより
、感光材料に悪影響を与えないようにしている。さらに
、リグニンを多量に含むことにより、剛度を大きくして
いる。The neutral paper of the present invention can be made inexpensive by using high-yield wood pulp, and can be used for photosensitive materials by using wood pulp treated with prescribed cooking chemicals and by adjusting the po to 6 to 9. I try not to have any negative impact. Furthermore, the rigidity is increased by containing a large amount of lignin.
また、紙管も、中性紙と同様に安価かつ耐圧強度が大き
く、さらに、ｐＨ６〜９の接着剤で貼合わせることにり
、感光材料に悪影響を与えないようにしている。Further, like neutral paper, the paper tube is inexpensive and has high pressure resistance, and is bonded together with an adhesive having a pH of 6 to 9, so as not to adversely affect the photosensitive material.
実施例１ パルプ； 原 料：広葉樹（Ｌ材） 蒸解薬品： ＮａｚＳＯｉとＮａ、ＣＯ。 Example 1 pulp; Raw material: Hardwood (L material) Cooking chemicals: NazSOi, Na, CO.
収 率：８３％ ｐＨ： ７．５（ＮａＯＨで調整） 中性紙； 坪ｆｉｔ３８０ｇ／ｒｒｆに抄紙 実施例２ パルプ； 原 料：広葉樹（Ｌ材） 蒸解薬品： ＮａＯＨとＮａ、ＣＱ、。Yield rate: 83% pH: 7.5 (adjusted with NaOH) Neutral paper; Paper making to fit 380g/rrf Example 2 pulp; Raw material: Hardwood (L material) Cooking chemicals: NaOH and Na, CQ,.
収 率：９０％
ｐＨ：ｓ、ｓ＜硫酸アルごニウムで調整）中性紙；
坪１３８０ ｇ ／ボに抄紙
実施例３
パルプ；
実施例２と同一のパルプ：８０％
ＮＵＫＰ ：２０ ％ｐＨ： ８
．０（硫酸アルミニウムで調整）中性紙；
坪量３８０ｇ／ ｒｄに抄紙
比較例１
ｐＨ５の未調整のパルプを用いる他は、実施例１と同一
である。Yield: 90% pH: s, s<adjusted with argonium sulfate) Neutral paper; 1380 g/paper papermaking Example 3 Pulp; Same pulp as Example 2: 80% NUKP: 20% pH: 8
．． 0 (adjusted with aluminum sulfate) Neutral paper; Paper making Comparative Example 1 with a basis weight of 380 g/rd Same as Example 1 except that unadjusted pulp with pH 5 was used.
比較例２
ｐＨ９，５の未調整のパルプを用いる他は、実施例２と
同一である。Comparative Example 2 This was the same as Example 2 except that unadjusted pulp with a pH of 9.5 was used.
従来例１
パルプ；ＮＢＳＰ：１００％
原 料：針葉樹（Ｎ材）
蒸解薬品： Ｈ，ＳＯ，、Ｎａ１（ＳＯ＝、 Ｎａ、Ｓ
Ｏ。Conventional example 1 Pulp; NBSP: 100% Raw material: Softwood (N material) Cooking chemicals: H, SO, Na1 (SO=, Na, S
O.
収 率：４６％
ｐＨ：５．０
祇 ；
坪量４００ｇ／ボに抄紙
以上の各厚紙を２０″Ｃ６５％ＲＨの環境で２日間調湿
した後４ｃｍＸ１５ｃｍの大きさに切り取り、同寸のカ
ラー用印画紙とともに防湿袋の中に密封収納した。防湿
袋は、７ｎのアルミニウム箔を含む透湿量が０．５ｇ／
ｒｄ・２４ｈｒ以下のものを用いた。密封した状態で５
０°Ｃ５日間放置した後取り出した。そして、露光およ
び現像し、反射濃度０．５に対する露光指数を計測した
。Yield: 46% pH: 5.0; Each cardboard with a basis weight of 400g/board was conditioned for 2 days in a 20"C 65%RH environment, then cut into 4cm x 15cm pieces, and cut into pieces of the same size for color. The photographic paper was sealed and stored in a moisture-proof bag.The moisture-proof bag contains 7N aluminum foil and has a moisture permeability of 0.5g/
rd・24hr or less was used. 5 in a sealed state
It was left at 0°C for 5 days and then taken out. Then, it was exposed and developed, and the exposure index for a reflection density of 0.5 was measured.
また、厚紙を入れない印画紙だけのものを用意し、ブラ
ンクとした。そして、各試料の露光指数からブランクの
露光指数を滅じ、これを露光指数変動値とした。In addition, I prepared a blank sheet containing only photographic paper without any thick paper. Then, the blank exposure index was subtracted from the exposure index of each sample, and this was taken as the exposure index fluctuation value.
結果を第１表に示す。The results are shown in Table 1.
第１表
〔実施例４〕
次に、実施例１．２．３と従来例１の厚紙を用い、ｐＨ
６，５の酢ビエマルジョン接着剤で内径７６．２肋φ、
層構１ｖ、１０プライ、長さ１００咽の紙管を製作した
。これを４０°Ｃ１日乾燥後２０°Ｃ６５％で３日間調
湿し、カラー印画紙を１周巻きつけ前記防湿袋に入れて
密封した。そして前記と同様の処理と比較をおこなった
。Table 1 [Example 4] Next, using the cardboard of Example 1.2.3 and Conventional Example 1, pH
Inner diameter 76.2 ribs φ with 6.5 vinegar emulsion adhesive,
A paper tube with a layer structure of 1v, 10 plies, and a length of 100 plies was manufactured. After drying at 40°C for 1 day, the humidity was controlled at 20°C and 65% for 3 days, and color photographic paper was wrapped around the bag once and the bag was sealed. Then, the same processing and comparison as above were performed.
また、調湿済の紙管を別に用意し、２枚の平行板で直径
方向に毎分１０ｍｍの速さで圧縮し最大荷重を測定した
。In addition, a humidity-conditioned paper tube was prepared separately, and the tube was compressed in the diametrical direction at a speed of 10 mm per minute using two parallel plates, and the maximum load was measured.
結果を第２表に示す。The results are shown in Table 2.
第２表
〔発明の効果〕
本発明は、以上のように槽底することにより、安価に製
造でき、かつ感光材料に悪影響を与えることなく、しか
も耐圧強度が向上する。Table 2 [Effects of the Invention] By forming the bath bottom as described above, the present invention can be manufactured at a low cost, does not adversely affect the photosensitive material, and has improved pressure resistance.
Claims (2)
ＣＯ＿３、Ｎａ＿２ＳＯ＿３およびＮａＨＳＯ＿３のい
ずれか又は２以上を組合せて用いた収率６５〜９５％の
木材パルプを２０〜１００％含み、ｐＨが６〜９である
ことを特徴とする中性紙(1) Cooking chemicals: NaOH, Na_2CO_3, NaH
Neutral paper containing 20 to 100% wood pulp with a yield of 65 to 95% using any one or a combination of two or more of CO_3, Na_2SO_3 and NaHSO_3, and having a pH of 6 to 9.
９のエマルジョン型接着剤または水溶性型接着剤で貼合
せて形成されたことを特徴とする紙管(2) Using the neutral paper described in claim (1), the pH is 6 to 6.
A paper tube characterized in that it is formed by laminating with an emulsion type adhesive or a water-soluble type adhesive according to No. 9.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31546989A JPH03180583A (en) | 1989-12-06 | 1989-12-06 | Neutral paper and paper tube using same |
| EP90123231A EP0436133B1 (en) | 1989-12-06 | 1990-12-04 | The use of neutral paper as a package material for a photosensitive material |
| DE1990611491 DE69011491T2 (en) | 1989-12-06 | 1990-12-04 | The use of neutral paper as packaging material for photosensitive material. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31546989A JPH03180583A (en) | 1989-12-06 | 1989-12-06 | Neutral paper and paper tube using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03180583A true JPH03180583A (en) | 1991-08-06 |
Family
ID=18065733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31546989A Pending JPH03180583A (en) | 1989-12-06 | 1989-12-06 | Neutral paper and paper tube using same |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0436133B1 (en) |
| JP (1) | JPH03180583A (en) |
| DE (1) | DE69011491T2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0579216B1 (en) * | 1992-07-15 | 2001-02-28 | Fuji Photo Film Co., Ltd. | Package of rolled phototsensitive material |
| JP3414845B2 (en) * | 1994-06-10 | 2003-06-09 | 富士写真フイルム株式会社 | Packing material and package for photosensitive printing plate |
| CN101880977B (en) * | 2010-03-25 | 2011-07-27 | 吉林晨鸣纸业有限责任公司 | Method for producing chemical-mechanical pulp of pinus sylvestris, white pine and cotton wood |
-
1989
- 1989-12-06 JP JP31546989A patent/JPH03180583A/en active Pending
-
1990
- 1990-12-04 DE DE1990611491 patent/DE69011491T2/en not_active Expired - Fee Related
- 1990-12-04 EP EP90123231A patent/EP0436133B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE69011491D1 (en) | 1994-09-15 |
| DE69011491T2 (en) | 1994-12-08 |
| EP0436133B1 (en) | 1994-08-10 |
| EP0436133A1 (en) | 1991-07-10 |
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