JPH0131408B2 - - Google Patents
Info
- Publication number
- JPH0131408B2 JPH0131408B2 JP58044468A JP4446883A JPH0131408B2 JP H0131408 B2 JPH0131408 B2 JP H0131408B2 JP 58044468 A JP58044468 A JP 58044468A JP 4446883 A JP4446883 A JP 4446883A JP H0131408 B2 JPH0131408 B2 JP H0131408B2
- Authority
- JP
- Japan
- Prior art keywords
- resin
- solution
- photosensitive resin
- sheet
- photosensitive
- 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
Links
- 229920005989 resin Polymers 0.000 claims description 61
- 239000011347 resin Substances 0.000 claims description 61
- 238000000034 method Methods 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 16
- 229920002994 synthetic fiber Polymers 0.000 claims description 7
- 239000012209 synthetic fiber Substances 0.000 claims description 7
- 238000011282 treatment Methods 0.000 claims description 7
- 238000005273 aeration Methods 0.000 claims description 3
- 239000000243 solution Substances 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 239000000835 fiber Substances 0.000 description 8
- 239000007864 aqueous solution Substances 0.000 description 7
- 206010034972 Photosensitivity reaction Diseases 0.000 description 5
- 229920005601 base polymer Polymers 0.000 description 5
- 230000035699 permeability Effects 0.000 description 5
- 229920000728 polyester Polymers 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 239000004677 Nylon Substances 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920001778 nylon Polymers 0.000 description 4
- 230000036211 photosensitivity Effects 0.000 description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000003504 photosensitizing agent Substances 0.000 description 3
- 229920002647 polyamide Polymers 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229920002972 Acrylic fiber Polymers 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002035 hexane extract Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 235000002639 sodium chloride Nutrition 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229910001508 alkali metal halide Inorganic materials 0.000 description 1
- 150000008045 alkali metal halides Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Photosensitive Polymer And Photoresist Processing (AREA)
- Filtration Of Liquid (AREA)
Description
【発明の詳細な説明】
発明の分野
本発明は、たとえば感光性樹脂版材を現像時に
水で洗い出した廃液などの感光性樹脂溶液を過
分離する方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for over-separating a photosensitive resin solution, such as a waste solution obtained by washing out a photosensitive resin plate material with water during development.
従来技術
高分子物質を原料として、これに紫外光（300
〜400nｍ）により光硬化反応を生起せしめる多
官能性不飽和化合物、光増感剤等を添加すること
によつてつくられた感光性樹脂は多くの用途に用
いられている。例えば印刷用の版材、印刷イン
キ、塗料、更にはプリント基板の回路作製のレジ
ストとして用いられている。ところで、この感光
性樹脂は例えば印刷用の版材、プリント回路レジ
スト用として用いられる場合には、目的とする画
像ネガないしポジテイブフイルムを感光面に密着
し、紫外光を照射し、光の通過する部分のみを光
硬化し、未照射部分は例えば水、アルカリ又はア
ルコールとかハロゲン化炭化水素等の現像剤によ
つて溶解ないし膨潤せしめて、除去するいわゆる
現像処理の必要がある。従つて、現像後の現像剤
中には未硬化の感光性樹脂は溶解ないし分散状態
で含有されている溶液となつている。この溶液中
には多くの固形分（樹脂分）、油分、COD、BOB
が含有されているので、この溶液をそのまま排水
することは水質汚染の原因となるので、可能なか
ぎり、除去する必要がある。中でも特に樹脂分、
油分は多く含有されるので、除去することが、貞
非必要である。感光性樹脂を含む溶液から樹脂分
を取り出す方法は、まず溶液そのものを何らかの
方法で処理し、溶液中から樹脂分を凝集析出せし
めることから始まり、次にその凝集析出している
樹脂分を液体と何らかの方法で分離する２つの方
法を取ることが一般に行なわれている。そこで本
発明者らは後工程の凝集析出せしめた処理液から
樹脂分、更には油分を極めて効率的に完全に分離
除去する方法について、鋭意検討した結果、本発
明に到達した。Conventional technology A polymer substance is used as a raw material, and it is exposed to ultraviolet light (300
Photosensitive resins made by adding polyfunctional unsaturated compounds, photosensitizers, etc. that cause a photocuring reaction (up to 400 nm) are used for many purposes. For example, it is used as a printing plate material, printing ink, paint, and even as a resist for producing circuits on printed circuit boards. By the way, when this photosensitive resin is used, for example, as a printing plate material or a printed circuit resist, a desired image negative or positive film is closely attached to the photosensitive surface, ultraviolet light is irradiated, and the light passes through it. It is necessary to perform a so-called development process in which only the portions are photocured and the unirradiated portions are dissolved or swollen with a developer such as water, alkali, alcohol, or halogenated hydrocarbon, and then removed. Therefore, after development, the developer contains the uncured photosensitive resin in a dissolved or dispersed state. This solution contains many solids (resin), oil, COD, and BOB.
is contained, and discharging this solution as it is causes water pollution, so it is necessary to remove it as much as possible. Especially the resin content,
Since it contains a lot of oil, it is extremely necessary to remove it. The method for extracting the resin from a solution containing a photosensitive resin begins with treating the solution itself in some way to coagulate and precipitate the resin from the solution, and then converting the coagulated and precipitated resin into a liquid. Generally, two methods are used to separate them in some way. Therefore, the present inventors conducted intensive studies on a method for completely and efficiently separating and removing resin components and furthermore oil components from the coagulated and precipitated treatment liquid in the subsequent process, and as a result, they arrived at the present invention.
発明の構成
即ち本発明は、未硬化の感光性樹脂を含む溶液
を処理して、該溶液中から該樹脂分を凝集析出せ
しめた処理液を、合成繊維でつくられ、かつ通気
量20〜400c.c.／cm2／secのシート状組織体を通して
過し、該樹脂分を該組織体上に残して、液体と
分離することからなる感光性樹脂溶液の過分離
法を提供するものである。Structure of the Invention That is, the present invention processes a solution containing an uncured photosensitive resin to coagulate and precipitate the resin from the solution. .c./cm 2 /sec through a sheet-like structure, and the resin component is left on the structure to separate it from the liquid. .
本発明において、感光性樹脂とは水ないしアル
コールに溶解ないし膨潤するポリアミドを基体ポ
リマーとしてこれに多官能性不飽和化合物および
光増感剤その他を添加して感光性を付与したポリ
アミド系感光性樹脂、ポリビニールアルコールを
基体ポリマーとしてこれに多官能性不飽和化合物
および光増感剤その他添加して感光性を付与した
ポリビニールアルコール系感光性樹脂、低分子不
飽和基含有ポリエステルを基体ポリマーとしてこ
れに上記同様感光性を付与したポリエステル系感
光性樹脂、アクリル系低分子量ポリマーを基体ポ
リマーとしてこれに上記同様にして感光性を付与
せしめたアクリル系感光性樹脂、更にはポリウレ
タンを基体ポリマーとして、これに上記同様にし
て感光性を付与したポリウレタン系感光性樹脂等
一般に知られている感光性樹脂である。これらは
一般に波長300〜400nｍの紫外光を吸収すると光
反応して、より高分子量の物質に変化し、耐溶剤
性となつて溶剤には溶解しないようになる。紫外
光が照射して硬化した部分のみを残して、未照射
部分の感光性樹脂を除去するためには基体となる
ポリマーの溶剤に対する性質を利用し、溶剤によ
つて除去されるのが一般的である。例えばポリア
ミド系感光性樹脂は水ないしアルコール、ポリビ
ニールアルコール系感光性樹脂は水、アクリル系
感光性樹脂、ポリエステル系感光性樹脂およびポ
リウレタン系感光性樹脂はアルカリ性の水溶液に
よるのが一般的である。従つて溶解除去された溶
液中にはこれら未照射、つまり未硬化の感光性樹
脂が含有されている。これらは溶解ないし懸濁状
で溶液となつている。従つてこのままでは含有さ
れる感光性樹脂を分離除去できない。そこでまず
この溶液中から感光性樹脂を凝集析出させる工程
が必要であるが、この処理方法には例えば食塩等
のアルカリ金属のハロゲン化物、硫酸バンド、ア
ルカリないし酸性の無機化合物を添加するとか単
に加熱するとか、あるいは上記凝固剤存在下に加
熱する等の方法によつて凝集析出せしめることが
可能である。本発明は特にこの処理方法には限定
されない。かくして得られた処理液は、使用する
溶媒中に感光性樹脂が大きな粒子となつて凝集し
析出されているので、次に本発明の主要部となつ
ている過工程を説明する。この過工程では本
発明では特定のシート状組織体を使用するもので
ある。まずこのシート状組織体の素材として合成
繊維を使用する。定然繊維とことなり特に合成繊
維を使用する理由は感光性樹脂中の油分（つまり
ｎ−ヘキサン抽出物）を除去できる効果をもつこ
と、液体との分離性つまり過性が良好であるこ
と、更には液体に対して非吸収性であることなど
による。この合成繊維は一般に知られているポリ
エステル、ナイロン、アクリルの各繊維、更には
ポリオレフイン系の繊維、これらの混繊糸である
が、若干量の天然繊維、半合成繊維が混合されて
いてもよい。これらの合成繊維はシート状の組織
体であつて、更には通気量が20〜400c.c.／cm2／
sec、好ましくは50〜300であることが必要であ
る。シート状組織体とは、例えば縦横に規則的に
絡合されている織物状となつているとか、あるい
は不織布とよばれていて、繊維が不規則的に絡合
しているシート状物など繊維が組み合わされてシ
ート状となつているものである。そしてこれらの
シート状組織体は通気量にして20〜400の空気の
通る微細な穴があいていることが必要である。こ
の通気量はJIS Ｌ−1096Aに記載される方法によ
つて測定されたものである。つまり、フラージル
機を使用し面積１cm2当り、１秒間に通過する空気
量をc.c.で測定した値である。 In the present invention, a photosensitive resin is a polyamide-based photosensitive resin made by adding a polyfunctional unsaturated compound, a photosensitizer, etc. to a polyamide base polymer that dissolves or swells in water or alcohol to impart photosensitivity. , polyvinyl alcohol-based photosensitive resins using polyvinyl alcohol as a base polymer and adding a polyfunctional unsaturated compound, a photosensitizer, etc. to impart photosensitivity; A polyester photosensitive resin that has been given photosensitivity in the same manner as above, an acrylic photosensitive resin that has been made photosensitized in the same manner as above using a low molecular weight acrylic polymer as a base polymer, and furthermore, a polyurethane as a base polymer, this It is a generally known photosensitive resin such as a polyurethane-based photosensitive resin that has been imparted with photosensitivity in the same manner as described above. Generally, when these substances absorb ultraviolet light with a wavelength of 300 to 400 nm, they undergo a photoreaction and change into substances with higher molecular weight, which become solvent resistant and do not dissolve in solvents. In order to remove the photosensitive resin in the unirradiated areas while leaving only the areas that have been cured by irradiation with ultraviolet light, it is common to use the solvent-responsive properties of the base polymer to remove the photosensitive resin with a solvent. It is. For example, it is common to use water or alcohol for polyamide photosensitive resins, water for polyvinyl alcohol photosensitive resins, and alkaline aqueous solutions for acrylic photosensitive resins, polyester photosensitive resins, and polyurethane photosensitive resins. Therefore, the solution that has been dissolved and removed contains these unirradiated, ie, uncured photosensitive resins. These are dissolved or suspended in a solution. Therefore, the photosensitive resin contained cannot be separated and removed as is. First, a step is required to coagulate and precipitate the photosensitive resin from this solution, but this treatment method involves, for example, adding an alkali metal halide such as common salt, sulfuric acid, an alkali or acidic inorganic compound, or simply heating. Alternatively, coagulation and precipitation can be carried out by heating in the presence of the coagulant. The present invention is not particularly limited to this treatment method. In the processing liquid thus obtained, the photosensitive resin is aggregated and precipitated as large particles in the solvent used. Next, the over-step process, which is the main part of the present invention, will be explained. In this process, a specific sheet-like tissue is used in the present invention. First, synthetic fibers are used as the material for this sheet-like tissue. The reasons why synthetic fibers are used in particular, in contrast to regular fibers, are that they have the effect of removing oil (i.e., n-hexane extract) from photosensitive resins, have good separability from liquids, that is, have good permeability, and This is due to the fact that it is non-absorbent to liquids. The synthetic fibers include generally known polyester, nylon, and acrylic fibers, as well as polyolefin fibers, and yarns mixed with these fibers, but a small amount of natural fibers and semi-synthetic fibers may also be mixed. . These synthetic fibers are sheet-like structures, and furthermore, they have an air permeability of 20 to 400 c.c./cm 2 /
sec, preferably 50 to 300. A sheet-like structure is a woven fabric in which fibers are regularly intertwined vertically and horizontally, or a sheet-like object called a non-woven fabric in which fibers are irregularly intertwined. are combined to form a sheet. These sheet-like tissues need to have 20 to 400 fine holes through which air can pass. This ventilation amount was measured by the method described in JIS L-1096A. In other words, it is the value measured in cc of the amount of air that passes per second per square centimeter of area using a Frasil machine.
この通気量は特に感光性樹脂を含む溶液から凝
集析出せしめた感光性樹脂を液体と完全にかつ効
率的に分離除去せしめることと不可分に結合され
ており、20、好ましくは50c.c.／cm2／secより小さ
いと過速度が遅く、効率的分離除去が行なわれ
ないとか、シート状組織体そのものが厚く取り扱
いがむずかしいなど好ましくない。逆に400より
大きいと、凝集析出した感光性樹脂が液体と共に
微細孔を通過してしまい、液体との分離が不完全
に終り、過の意味がなくなるからである。過
に際して、該シート状組織体は適当な過器をつ
くつて、その上に乗せて処理液を徐々に注入して
凝集析出した感光性樹脂を残渣として該シート状
組織体上に残して、液体を通過せしめて過分離
するなど、特別な方法はない。該シート状組織体
上に残つた該樹脂は固形状となつて分離されるの
で、これは産業廃棄物として焼却処分する。特に
合成繊維を使用するシート状組織体であるので、
残渣との分離もよく、再度過用シートとして利
用することもできる。 This ventilation rate is inseparably combined with the ability to completely and efficiently separate and remove the photosensitive resin coagulated and precipitated from the photosensitive resin-containing solution, and is preferably 20, preferably 50 c.c./cm. If it is smaller than 2 /sec, the overspeed will be slow and efficient separation and removal will not be carried out, and the sheet-like tissue itself will be thick and difficult to handle, which is undesirable. On the other hand, if it is larger than 400, the coagulated and precipitated photosensitive resin will pass through the micropores together with the liquid, resulting in incomplete separation from the liquid, and the excess will be meaningless. During the process, the sheet-like structure is placed on a suitable strainer, and the processing liquid is gradually injected, leaving the coagulated and precipitated photosensitive resin on the sheet-like structure as a residue, and the liquid is removed. There is no special method such as over-separation by allowing the light to pass through. The resin remaining on the sheet-like tissue becomes solid and separated, and is incinerated as industrial waste. Especially since it is a sheet-like structure using synthetic fibers,
It can be easily separated from the residue and can be used again as an overuse sheet.
以上本発明は凝集析出せしめた感光性樹脂溶液
の処理液を特殊なシート状組織体を通過せしめる
ことによつて、該樹脂分を完全にかつ迅速に過
分離すると同時に、特にｎ−ヘキサン抽出物、つ
まり油分も除去できるという極めて効果的な方法
といえる。以下本発明を実施例および比較例によ
つて詳細に説明する。 As described above, the present invention allows the processing solution of the coagulated photosensitive resin solution to pass through a special sheet-like structure, thereby completely and quickly overseparating the resin components, and at the same time, particularly, extracting n-hexane extracts. In other words, it can be said to be an extremely effective method that can also remove oil. The present invention will be explained in detail below using Examples and Comparative Examples.
実施例 １
水現像できるナイロン系感光性樹脂凸版“富士
トレリーフ（商品名）のWF−95BSタイプ（硬
度30、感光層0.75ｍ／ｍ）を製版して得られた未
硬化感光性樹脂含有６％（重量）の水溶液100
を用いて次の処理および過を行なつた。Example 1 Water-developable nylon-based photosensitive resin letterpress plate "Fuji Toreleaf (trade name) WF-95BS type (hardness 30, photosensitive layer 0.75 m/m)" containing 6% uncured photosensitive resin obtained by plate making (weight) of aqueous solution 100
The following treatments and filtration were carried out using:
この水溶液65を溶槽に入れ、これに0.1％の
硫酸バンドを入れて撹拌しながら40℃に加熱し
た。乳濁状の水溶液から徐々に樹脂が凝集し、40
分後には透明な水中に凝集析出した樹脂が分散し
た状態となつた。次にこの処理液をポリエステル
繊維でつくつた通気量270c.c.／cm2／secの厚み0.23
ｍ／ｍの不織状シートをつかつて過した。過
は（幅）500×（長さ）700×（高さ）150ｍ／ｍの
過器をつかつて、行なつた。この過器は液
の出口と不織状シートを置く穴のあいている置台
が過器の底から20ｍ／ｍの位置にセツトされて
いる。過器には6゜の傾斜をつけて、一方から処
理液を30分要して徐々に流した。50分後には過
が終了し、樹脂分と水が完全に分離された。液
となつた水は透明なものであり、また油分は処理
液に対して大体1/50となつていた。 This aqueous solution 65 was placed in a melting tank, 0.1% sulfuric acid was added thereto, and heated to 40°C with stirring. The resin gradually aggregates from the emulsion-like aqueous solution, and 40
After a few minutes, the resin coagulated and precipitated in clear water became dispersed. Next, this treatment solution was applied to a polyester fiber with an air permeability of 270 c.c./cm 2 /sec and a thickness of 0.23.
A nonwoven sheet of m/m was used. The process was carried out using a 500 m/m (width) x 700 m/m (length) x 150 m/m (height). In this filter, a stand with holes for a liquid outlet and a nonwoven sheet was set at a position 20 m/m from the bottom of the filter. The filter vessel was tilted at 6°, and the treated solution was gradually poured from one side over a period of 30 minutes. After 50 minutes, the filtration was completed and the resin and water were completely separated. The liquid water was transparent, and the oil content was approximately 1/50 of the treated liquid.
実施例 ２
東京応化工業(株)製のポリビニールアルコール系
感光性樹脂（商品名：ミライン、種類MF−94）
を製版して得られた樹脂分濃度４％の水溶液に食
塩10％添加して、樹脂分を凝集分離せしめた。一
方、過布として、ポリエステル、ナイロン、レ
ーヨンの各繊維を混合してつくつた通気量150
c.c.／cm2／secのシートを用いて、実施例１と同様
に過したところ、実施例１と同様に凝固樹脂と
水とを完全に分離できた。又、油分も原処理液に
対して1/40減少していることを確認した。Example 2 Polyvinyl alcohol photosensitive resin manufactured by Tokyo Ohka Kogyo Co., Ltd. (product name: Miraine, type MF-94)
To an aqueous solution with a resin content concentration of 4% obtained by plate making, 10% common salt was added to cause the resin content to coagulate and separate. On the other hand, as a fabric, the air permeability is 150, which is made by mixing polyester, nylon, and rayon fibers.
When the same procedure as in Example 1 was carried out using a sheet of cc/cm 2 /sec, the coagulated resin and water could be completely separated as in Example 1. It was also confirmed that the oil content was reduced by 1/40 compared to the original treated solution.
実施例 ３
東洋紡(株)製の感光性樹脂凸版（商品名：プリン
タイト、品種EF−95）を用いて、水で感光性樹
脂層を溶解して、樹脂濃度５％の水溶液をつくつ
た。この水溶液35を用いて、これに５％になる
ように、カセイソーダ溶液（10％）を撹拌しなが
ら徐々に添加した。溶解樹脂は凝集し析出して大
きな粒子となつて分散している。この処理液を用
いて、ナイロンとアクリルの繊維でつくられた通
気量175c.c.／cm2／secの厚み0.2ｍ／ｍの不織状の
シートを過布とした。この過布を実施例１と
同様の過器にて過した。過は15分で完了
し、水と樹脂とは完全に分離された。Example 3 Using a photosensitive resin letterpress (trade name: Printite, type EF-95) manufactured by Toyobo Co., Ltd., a photosensitive resin layer was dissolved with water to prepare an aqueous solution with a resin concentration of 5%. Using this aqueous solution 35, a caustic soda solution (10%) was gradually added to it while stirring to give a concentration of 5%. The dissolved resin aggregates and precipitates, becoming large particles and being dispersed. Using this treatment liquid, a non-woven sheet made of nylon and acrylic fibers with an air permeability of 175 c.c./cm 2 /sec and a thickness of 0.2 m/m was fabricated. This filter cloth was passed through the same filter as in Example 1. The filtration was completed in 15 minutes, and water and resin were completely separated.
比較例 １
実施例１において通気量17と420の２種につい
て同様過した。通気量17のものについては１時
間過しても水は２しか通過せず、実質的に
過は不可であつた。一方、420のものについては、
凝固樹脂が目から通過し、液の水には樹脂が混
在し、過の意味がなかつた。Comparative Example 1 The same procedure as in Example 1 was carried out for two types of aeration amounts of 17 and 420. In the case where the aeration amount was 17, only 2 liters of water passed through even after one hour, and it was virtually impossible to pass through. On the other hand, for the 420 ones,
The solidified resin passed through the eyes, and the resin was mixed in the liquid water, so there was no point in passing.
Claims (1)
該溶液中から該樹脂分を凝集析出せしめた処理液
を、合成繊維でつくられ、かつ通気量20〜400
c.c.／cm2／secのシート状組織体を通して過し、
該樹脂分を該組織体上に残して液体と分離するこ
とを特徴とする感光性樹脂溶液の過分離法。1. Treating a solution containing an uncured photosensitive resin,
A treatment solution in which the resin content is coagulated and precipitated from the solution is prepared from synthetic fibers and has an aeration rate of 20 to 400.
passed through a sheet-like structure of cc/cm 2 /sec,
A method for over-separating a photosensitive resin solution, characterized in that the resin component is left on the tissue and separated from the liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58044468A JPS59169519A (en) | 1983-03-18 | 1983-03-18 | Filtering separation of photosensitive resin solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58044468A JPS59169519A (en) | 1983-03-18 | 1983-03-18 | Filtering separation of photosensitive resin solution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59169519A JPS59169519A (en) | 1984-09-25 |
| JPH0131408B2 true JPH0131408B2 (en) | 1989-06-26 |
Family
ID=12692330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58044468A Granted JPS59169519A (en) | 1983-03-18 | 1983-03-18 | Filtering separation of photosensitive resin solution |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59169519A (en) |
-
1983
- 1983-03-18 JP JP58044468A patent/JPS59169519A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59169519A (en) | 1984-09-25 |
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