JPS6350591A - Deinking agent for regenerating old paper - Google Patents
Deinking agent for regenerating old paperInfo
- Publication number
- JPS6350591A JPS6350591A JP61190253A JP19025386A JPS6350591A JP S6350591 A JPS6350591 A JP S6350591A JP 61190253 A JP61190253 A JP 61190253A JP 19025386 A JP19025386 A JP 19025386A JP S6350591 A JPS6350591 A JP S6350591A
- Authority
- JP
- Japan
- Prior art keywords
- deinking
- agent
- deinking agent
- ink
- fatty acids
- 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
- 239000002761 deinking Substances 0.000 title claims description 43
- 239000003795 chemical substances by application Substances 0.000 title claims description 30
- 230000001172 regenerating effect Effects 0.000 title 1
- 239000000344 soap Substances 0.000 claims description 18
- 230000002378 acidificating effect Effects 0.000 claims description 17
- 239000010893 paper waste Substances 0.000 claims description 9
- 238000004064 recycling Methods 0.000 claims description 6
- 239000004480 active ingredient Substances 0.000 claims description 5
- 235000014113 dietary fatty acids Nutrition 0.000 description 19
- 239000000194 fatty acid Substances 0.000 description 19
- 229930195729 fatty acid Natural products 0.000 description 19
- 239000000976 ink Substances 0.000 description 19
- 150000004665 fatty acids Chemical class 0.000 description 16
- 239000004088 foaming agent Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- 239000007788 liquid Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 5
- -1 fatty acid salts Chemical class 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000005188 flotation Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000004094 surface-active agent Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical class C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 description 1
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 description 1
- RVGRUAULSDPKGF-UHFFFAOYSA-N Poloxamer Chemical class C1CO1.CC1CO1 RVGRUAULSDPKGF-UHFFFAOYSA-N 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 235000002492 Rungia klossii Nutrition 0.000 description 1
- 244000117054 Rungia klossii Species 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 235000015278 beef Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229940096386 coconut alcohol Drugs 0.000 description 1
- 235000019864 coconut oil Nutrition 0.000 description 1
- 239000003240 coconut oil Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 235000021588 free fatty acids Nutrition 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000006193 liquid solution Substances 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000003352 sequestering agent Substances 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
Landscapes
- Paper (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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、新聞、雑誌、書籍などの印刷古紙から再生パ
ルプを製造する際に用いられる脱墨剤に関する。更に詳
しくは、古紙再生に要するエネルギー費用を節減し１、
かつ高白色度で、残インク数の少ない脱墨パルプを得る
ことのできる脱墨剤に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a deinking agent used in producing recycled pulp from printed waste paper such as newspapers, magazines, and books. For more details, see how to reduce energy costs required for waste paper recycling1.
The present invention also relates to a deinking agent capable of producing deinked pulp with high whiteness and a small number of residual inks.
印刷古紙の再生利用は古（から行われてきているが、特
に最近は、脱墨パルプの高度利用が促進される一方、製
紙コストの低廉化を計るため、古紙の有効利用は、ます
ます重要性を増してきている。Recycling of waste printing paper has been carried out since ancient times, but recently, the advanced use of deinked pulp has been promoted, and the effective use of waste paper is becoming more and more important in order to reduce paper manufacturing costs. It's becoming more sexual.
印刷古紙から再生パルプを得るには、通常、細かに裁断
した印刷古紙を、パルパー内でアルカリ薬剤と脱墨剤、
さらに必要に応じて漂白剤やＥＤＴＡ、ＤＴＰＡなどの
金属イオン封鎖剤と共に離解したのち、脱離したインク
をフローテーションなどで系外に除去し、抄紙を行う方
法が採用されている。To obtain recycled pulp from used printed paper, the used printed paper is usually shredded into small pieces and treated with alkaline chemicals and deinking agents in a pulper.
Furthermore, if necessary, a method is adopted in which paper is made by disintegrating the ink with a bleach, EDTA, DTPA, or other sequestering agent, and then removing the detached ink from the system by flotation or the like.
脱墨剤には、大別して、脱離したインクを細か（分散さ
せた状態で系外に除去することを目的とした分散系脱墨
剤と、脱離したインクをある程度凝集させた状態で系外
に除去することを目的とした凝集系脱墨剤とがある。こ
の二つのタイプの脱墨剤のうち、現在では、再生パルプ
の白色度をより高めることができる凝集系脱墨剤が広く
用いられるようになってきている。Deinking agents can be roughly divided into dispersion type deinking agents, which remove the detached ink from the system in a fine (dispersed) state, and system deinking agents, which remove the detached ink from the system in a finely dispersed state; There is an agglomerated deinking agent that aims to remove the ink from the outside.Of these two types of deinking agents, the agglomerated deinking agent, which can further increase the whiteness of recycled pulp, is currently widely used. It is starting to be used.
この凝集系脱墨剤には、通常紙からのインクの脱離やフ
ローテーション工程での泡たちをよくするための各種界
面活性剤からなる起泡剤とともに、紙からの脱離インク
を凝集させてフローテーション■゛稈ての系外−・の除
人を容易にするための丹イＣ剤が用いられ、後者の凝集
剤としては、たとえば特開昭５０−２５８０５号公報、
特開昭５０−１４２８０４号公報、特開昭６０−１５５
７９４号公報などに開示されている如く、脂肪酸やその
塩、特に市販ステアリン酸などの固体脂肪酸やそのナト
リウム塩が知られている。This agglomerated deinking agent contains a foaming agent consisting of various surfactants to improve the removal of ink from paper and bubbles during the flotation process, as well as a foaming agent that aggregates the ink released from paper. In order to facilitate flotation and removal of culms from outside the system, a tani C agent is used.
JP-A-50-142804, JP-A-60-155
As disclosed in Japanese Patent No. 794, etc., fatty acids and their salts, particularly commercially available solid fatty acids such as stearic acid and their sodium salts, are known.
費用が非常に高く、また脂肪酸の塩をそのままの形ある
いは水溶液の形で添加した場合には、再生パルプの白色
度が劣り、さらに常温で液体の脂肪酸を用いた場合には
、起泡剤として用いる界面活性剤の泡立ちを抑制し、脱
離したインクを十分に系外に除去できないため、再生パ
ルプの白色度がやはりあがらないという問題があった。The cost is very high, and when fatty acid salts are added as they are or in the form of an aqueous solution, the whiteness of the recycled pulp is inferior.Furthermore, when fatty acids that are liquid at room temperature are used, they cannot be used as foaming agents. Since foaming of the surfactant used cannot be suppressed and the detached ink cannot be sufficiently removed from the system, there is still a problem in that the whiteness of the recycled pulp does not increase.
が非常に高いものとなるという問題があり、また常温で
液体の脂肪酸や脂肪酸の塩にあっては、再生パルプの白
色度が劣るという問題があった。There is a problem that the whiteness of the regenerated pulp is poor when using fatty acids or fatty acid salts that are liquid at room temperature.
本発明者らは、上記の事情に鑑み、脱墨処理に際しての
作業性にすぐれ、かつエネルギー費用を節約でき、しか
も再生パルプの白色度を向上しうるような脱墨剤を得る
ことを目的として鋭意研究した結果、脂肪酸同様の凝集
能力を持ちながら水に可溶である酸性石けんを用いるこ
とにより、上記目的を悉く達成できることを知り、本発
明に到達した。In view of the above circumstances, the present inventors aimed to obtain a deinking agent that has excellent workability during deinking treatment, can save energy costs, and can improve the whiteness of recycled pulp. As a result of intensive research, the inventors learned that all of the above objectives could be achieved by using an acidic soap that has the same flocculating ability as fatty acids but is soluble in water, and thus arrived at the present invention.
すなわち、本発明は、酸性石けんを有効成分とすること
を特徴とする古紙再生用脱墨剤に係るものである。That is, the present invention relates to a deinking agent for recycling waste paper characterized by containing acidic soap as an active ingredient.
本発明に用いられる酸性石けんとは、遊離脂肪酸と脂肪
酸の塩とが会合し、あたかも一つの分子のような挙動を
するものであるが、その性質としては、脂肪酸の特性と
、石けんの特性を併せ有している。これらのことについ
ては、たとえばＪ。The acidic soap used in the present invention is a combination of free fatty acids and fatty acid salts that behave as if they were one molecule. It has both. Regarding these matters, see, for example, J.
Ｌｕｃａｓｓｅｎ、Ｊ、Ｐｈｙｓ、Ｃｈｅｍ、。Lucassen, J., Phys. Chem.
７０．１８２４ （１９６６）に詳しく記述されて
いる。このため、常温で固体の脂肪酸であっても、酸性
石けんの形にすると、容易に水溶液にすることができる
。70.1824 (1966). For this reason, even fatty acids that are solid at room temperature can be easily converted into an aqueous solution when made into an acidic soap.
このような酸性石けんを脱墨剤の有効成分として用いた
場合には、インクの凝集能力が脂肪酸と変わらず、また
？容解性があるため、これ自身でもあるいは界面活性剤
や有機溶剤などを用いて常温で液状とすることが容易で
、このため脱墨処理における作業性が固体の脂肪酸を扱
う場合に較べて融
著しく改善されたものとなり、またそれを溶ノするため
の装置などを高温に保っておく必要がないから、脱墨処
理に要する費用を大幅に′Ｍ減することができる。When such acidic soap is used as an active ingredient in a deinking agent, the ink flocculation ability is the same as that of fatty acids. Because of its solubility, it can be easily made into a liquid state at room temperature either by itself or by using surfactants or organic solvents, and for this reason, the workability in deinking treatment is faster than when dealing with solid fatty acids. This is a significant improvement, and since there is no need to keep the equipment for melting it at a high temperature, the cost required for deinking can be significantly reduced.
サラに、高ｈａ度パルパーの普及に伴い、パルパーで処
理する際のパルプ濃度を高くする傾向にあるが、この場
合従来の界面活性剤（起泡剤）と脂肪酸とを組み合わせ
た脱墨剤では、薬剤がパルプ中に均一に分散しないこと
があったが、本発明の酸性石けんを用いた脱墨剤では上
記分散性にすぐれているため、パルプ濃度を高くする場
合でもこのようなトラブルを防止できる。In addition, with the spread of high-ha pulpers, there is a tendency to increase the pulp concentration when processing with pulpers, but in this case, conventional deinking agents that combine surfactants (foaming agents) and fatty acids do not work. However, since the deinking agent using the acidic soap of the present invention has excellent dispersibility, such troubles can be prevented even when the pulp concentration is increased. can.
本発明で使用する酸性石けんを構成させるための脂肪酸
および脂肪酸の塩としては、その炭素数が４〜３０のも
のが好ましく、特に好適には通常工業用として得られる
ヤシ油または牛脂などを原料とする炭素数８〜２２の脂
肪酸およびその塩である。この酸性石けんは、塩基性物
質であれば、どのようなものを用いたものであってもよ
いが、好ましくはナトリウム塩、カリウム塩、リチウム
塩、アンモニウム塩または低級アミン塩を形成している
ものがよい。The fatty acids and salts of fatty acids for constituting the acidic soap used in the present invention preferably have 4 to 30 carbon atoms, and are particularly preferably made from coconut oil or beef tallow, which are usually obtained for industrial use. These are fatty acids having 8 to 22 carbon atoms and salts thereof. This acidic soap may be made of any basic substance, but preferably one that forms a sodium salt, potassium salt, lithium salt, ammonium salt, or lower amine salt. Good.
このような酸性石けんを得る際の中和率は１０〜９０％
、好ましくは２０〜９０％がよい。１０％未満では本発
明の目的とするような常温で液状あるいは常温で液状の
水溶液としにくく、また９０％を超えるとインクの凝集
能力が弱くなって十分な脱墨効果が得られない。The neutralization rate when obtaining this type of acidic soap is 10 to 90%.
, preferably 20 to 90%. If it is less than 10%, it is difficult to form a liquid at room temperature or an aqueous solution that is liquid at room temperature as the object of the present invention, and if it exceeds 90%, the aggregation ability of the ink becomes weak and a sufficient deinking effect cannot be obtained.
本発明においては、かかる酸性石けんを古紙再生用脱墨
剤の有効成分のひとつとして用いることを特徴とじてい
るが、この酸性石けんは主として脱離したインクの凝集
剤として作用するものであるため、実際の脱墨処理にお
いては通常適宜の起泡剤と組み合わせて用いられる。The present invention is characterized by using such an acidic soap as one of the active ingredients of a deinking agent for waste paper recycling, but since this acidic soap mainly acts as a flocculant for the desorbed ink, In actual deinking treatment, it is usually used in combination with an appropriate foaming agent.
上記の起泡剤としては、脱離したインクの凝集効果に悪
影響を及ぼさないものであればなんでもよく、従来公知
のものを広く適用できる。たとえば高級アルコール、脂
肪酸、高級アルキルアミン、脂肪酸アミド、ポリプロピ
レングリコール、アルキルフェノールなどへのエチレン
オキシド付加物またはエチレンオキシドプロピレンオキ
シド付加物などの非イオン性界面活性剤、これら非イオ
ン性界面活性剤のスルホン化物、アルキルベンゼンスル
ホン酸などのアニオン性界面活性剤などが挙げられる。Any foaming agent may be used as the foaming agent as long as it does not adversely affect the aggregation effect of the detached ink, and a wide variety of conventionally known foaming agents can be used. For example, nonionic surfactants such as ethylene oxide adducts or ethylene oxide propylene oxide adducts to higher alcohols, fatty acids, higher alkyl amines, fatty acid amides, polypropylene glycols, alkylphenols, etc., sulfonated products of these nonionic surfactants, alkylbenzenes. Examples include anionic surfactants such as sulfonic acid.
本発明の脱墨剤は、通常行われているように脱墨処理に
おける離解工程などに添加され、この添加は上記工程な
どの水系に常温で液状ないし水溶液状のものとしてその
まま添加する方式にて行える。このときの添加量は、凝
集剤成分となる酸性石けんでは再生用古紙に対して通常
０．０５〜２重量％となる割合、また前記起泡剤成分で
は、上記同様の割合が通常０，０５〜２重量％となるよ
うにするのがよい。The deinking agent of the present invention is added to the disintegration process in the deinking process as is usually done, and this addition is done by directly adding it as a liquid or aqueous solution to the aqueous system in the above process etc. at room temperature. I can do it. The amount of acidic soap added at this time is usually 0.05 to 2% by weight based on the recycled paper, and the amount of the foaming agent added is usually 0.05 to 2% by weight based on the recycled waste paper. It is preferable to adjust the amount to 2% by weight.
なお、離解工程では、公知のように、水酸化ナトリウム
、ケイ酸ナトリウムなどのアルカリ助剤、過酸化水素な
どの漂白剤などを同時に添加できるものである。In addition, in the disintegration step, as is well known, alkaline aids such as sodium hydroxide and sodium silicate, bleaching agents such as hydrogen peroxide, etc. can be added at the same time.
以上のように、本発明の酸性石けんを有効成分とする脱
墨剤を用いれば、上記面けんを常温で容易に液状化でき
るため、脱墨処理の作業性を従来の固体の脂肪酸を扱う
場合に較べて大幅に向上でき、また脱墨処理に要するエ
ネルギー費用の節減にイ）好結果が得られる。しかも、
酸性石けんは脂肪酸の性質を有して脱離したインクの凝
集効果にすぐれるため、白色度のすぐれた残インク数の
少ないバルブを再生できる。As described above, by using the deinking agent containing the acidic soap of the present invention as an active ingredient, the above-mentioned soap can be easily liquefied at room temperature. This can be significantly improved compared to the previous method, and also yields good results in reducing the energy costs required for deinking. Moreover,
Acidic soap has fatty acid properties and has an excellent agglomerating effect on detached ink, so it is possible to regenerate a valve with excellent whiteness and a small number of residual ink.
以下に、本発明の実施例を記載してより具体的に説明す
る。EXAMPLES Below, the present invention will be explained in more detail by describing examples.
実施例１〜７
起泡剤成分として、ヤシアルコールのプロピレンオキシ
ド（５モル）エチレンオキシド（７モル）付加物のスル
ホン化物とノニルフェノールのエチレンオキシド（１０
モル）付加物との１＝１混合物を用い、これと下記第１
表に示す凝集剤成分とを、両成分の重量比（固形分比）
が３ニアとなる割合で組み合わせて、本発明の古紙再生
用脱墨剤とした。Examples 1 to 7 As foaming agent components, sulfonated products of propylene oxide (5 mol) and ethylene oxide (7 mol) adducts of coconut alcohol and ethylene oxide (10 mol) of nonylphenol were used as foaming agent components.
molar) adduct, using a 1=1 mixture of this and the following first
The weight ratio (solid content ratio) of both components with the flocculant components shown in the table.
The deinking agent for waste paper recycling of the present invention was prepared by combining them at a ratio of 3 near.
第 １ 表
比較例１〜６
凝集剤成分を下記第２表に示すものに変更した以外は、
実施例１〜７と同様にして比較用の古紙再生用脱墨剤を
得た。Table 1 Comparative Examples 1 to 6 Except for changing the flocculant components to those shown in Table 2 below,
Comparative deinking agents for waste paper recycling were obtained in the same manner as in Examples 1 to 7.
第２表
まず、上記の実施例および比較例に係る各脱墨剤を用い
て、以下の方法で脱墨処理における作業性試験を行った
。その結果を第３表にまとめて示した。Table 2 First, a workability test in deinking treatment was conducted using each of the deinking agents according to the above Examples and Comparative Examples in the following manner. The results are summarized in Table 3.
く液状化の判定〉
常温で液状であるかあるいは常温で液状の水溶液にでき
る場合を○、できない場合を×、と判定した。Judgment of liquefaction> A case where the substance is liquid at room temperature or can be made into a liquid aqueous solution at room temperature is judged as ○, and a case where it is not possible is judged as ×.
〈ポンプ輸送の可否〉
常温でそのままあるいはその液状物を液送ポンプにより
輸送可能な場合を○、不可能な場合を×、と判定した。<Possibility of pump transportation> The case where the material could be transported as it is or the liquid substance at room temperature by a liquid pump was evaluated as ○, and the case where it was not possible was evaluated as ×.
く脱墨剤の分散性〉
パルパーおよび薬剤投入装置を、４０℃、５０℃および
６０℃に保った状態で脱墨剤を投入し、均一に分散する
場合をＯｌしない場合を×、と判定した。Dispersibility of deinking agent〉 The deinking agent was added while keeping the pulper and chemical injection device at 40°C, 50°C, and 60°C, and the case where it was uniformly dispersed was judged as × when it was not inked. .
第 ３ 表
つぎに、上記の実施例および比較例に係る各脱墨剤を用
いて、以下の方法で実際に脱墨処理試験を行った。なお
、脱墨処理時の装置温度は６０ ”Ｃとした。結果は、
後記の第４表に示されるとおりであった。Table 3 Next, using each of the deinking agents according to the above-mentioned Examples and Comparative Examples, a deinking treatment test was actually conducted in the following manner. The temperature of the device during the deinking process was 60"C.The results were as follows:
The results were as shown in Table 4 below.
く古紙の離解〉
車中回収した新聞紙８０重量％とチラシ２０重量％とか
らなる原料古紙を細断し、パルパーに入れ、パルプ濃度
が６重量％となるように、温水、水酸化す） ＩＪウム
１重量％（対原料）、けい酸ナトリウム・３号３重量％
（対原料）、３重量％の過酸化水素２重量％（対原料）
および脱墨剤０．６重量％（対原料）を加え、所定温度
で２０分間離解したのち、パルプ濃度が１重量％となる
ように水を加えて希釈した。(IJ 1% by weight (based on raw materials), 3% by weight of sodium silicate No. 3
(based on raw materials), 3% by weight hydrogen peroxide 2% by weight (based on raw materials)
and 0.6% by weight (based on the raw material) of a deinking agent, and after disintegration at a predetermined temperature for 20 minutes, water was added to dilute the pulp to a pulp concentration of 1% by weight.
くフローテーション法〉
上記の離解で得られた１重量％のバルブスラリーを、試
験用フローテータ−を用いて、２５℃で８分間フローテ
ーションし、泡に吸着したカーボンを系外に除去したの
ち、ＴＡＰＰＩスタンダードシートマシンにて手抄きし
て、バルブシートを得た。Flotation method> The 1% by weight valve slurry obtained by the above disintegration was floated at 25°C for 8 minutes using a test floatator to remove carbon adsorbed to the foam from the system. A valve seat was obtained by hand-sheeting using a TAPPI standard sheet machine.
く脱墨効果評価法〉
上記方法にて得たバルブシートにつき、下記方法にて白
色度および残インク数を調べ、脱墨効果を評価した。Deinking effect evaluation method> The valve sheets obtained by the above method were examined for whiteness and the number of remaining inks by the following method to evaluate the deinking effect.
９白色度：ＳＭカラーコンピューター（スガ試験機株式
会社製）を用いて青色反射率を測定した。9 Whiteness: Blue reflectance was measured using an SM color computer (manufactured by Suga Test Instruments Co., Ltd.).
なお、第４表中の数値は５点×５枚の平均値である。Note that the values in Table 4 are the average values of 5 points x 5 sheets.
９残インク数−画像解析装置（Ｘ １００倍）にて残イ
ンク数を数え、ＩＣｌ１１当りの数値に換算した。9 Number of remaining inks - The number of remaining inks was counted using an image analyzer (x100 times) and converted into a value per 11 ICl.
第４表 １）脂肪酸が溶解せず、実施できなかった。Table 4 1) The experiment could not be carried out because the fatty acid was not dissolved.
以上の第３表および第４表の結果から明らかなように、
本発明の酸性石けんを使用した脱墨剤によれば、酸性石
けんを用いない従来の脱墨剤に較べて脱墨処理の作業性
が良好で、エネルギー費用や適用範囲の面ですぐれてお
り、しかもこの脱墨処理によって白色度のすぐれた残イ
ンク数の少ないパルプを再生できるものであることがわ
かる。As is clear from the results in Tables 3 and 4 above,
According to the deinking agent using acidic soap of the present invention, the workability of deinking treatment is better than the conventional deinking agent that does not use acidic soap, and it is superior in terms of energy cost and application range. Moreover, it can be seen that this deinking process can regenerate pulp with excellent whiteness and a small amount of residual ink.
Claims (1)
紙再生用脱墨剤(1) Deinking agent for waste paper recycling characterized by containing acidic soap as an active ingredient
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61190253A JPS6350591A (en) | 1986-08-13 | 1986-08-13 | Deinking agent for regenerating old paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61190253A JPS6350591A (en) | 1986-08-13 | 1986-08-13 | Deinking agent for regenerating old paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6350591A true JPS6350591A (en) | 1988-03-03 |
Family
ID=16255059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61190253A Pending JPS6350591A (en) | 1986-08-13 | 1986-08-13 | Deinking agent for regenerating old paper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6350591A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012007263A (en) * | 2010-06-24 | 2012-01-12 | Tech Corporation:Kk | Recycled pulp manufacturing method using printed used paper as raw material |
-
1986
- 1986-08-13 JP JP61190253A patent/JPS6350591A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012007263A (en) * | 2010-06-24 | 2012-01-12 | Tech Corporation:Kk | Recycled pulp manufacturing method using printed used paper as raw material |
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