JPH01258983A - Thermal recording body and manufacture thereof - Google Patents
Thermal recording body and manufacture thereofInfo
- Publication number
- JPH01258983A JPH01258983A JP63087237A JP8723788A JPH01258983A JP H01258983 A JPH01258983 A JP H01258983A JP 63087237 A JP63087237 A JP 63087237A JP 8723788 A JP8723788 A JP 8723788A JP H01258983 A JPH01258983 A JP H01258983A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- hydroxy
- sensitive layer
- color
- forming substance
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 239000000126 substance Substances 0.000 claims abstract description 22
- 238000002844 melting Methods 0.000 claims abstract description 9
- 230000008018 melting Effects 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 15
- 239000006185 dispersion Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 11
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 9
- 150000003457 sulfones Chemical class 0.000 claims description 8
- KZTYYGOKRVBIMI-UHFFFAOYSA-N diphenyl sulfone Chemical compound C=1C=CC=CC=1S(=O)(=O)C1=CC=CC=C1 KZTYYGOKRVBIMI-UHFFFAOYSA-N 0.000 claims 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 abstract description 2
- 229910000040 hydrogen fluoride Inorganic materials 0.000 abstract description 2
- 239000002985 plastic film Substances 0.000 abstract description 2
- AAAQKTZKLRYKHR-UHFFFAOYSA-N triphenylmethane Chemical compound C1=CC=CC=C1C(C=1C=CC=CC=1)C1=CC=CC=C1 AAAQKTZKLRYKHR-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract 3
- JPIYZTWMUGTEHX-UHFFFAOYSA-N auramine O free base Chemical class C1=CC(N(C)C)=CC=C1C(=N)C1=CC=C(N(C)C)C=C1 JPIYZTWMUGTEHX-UHFFFAOYSA-N 0.000 abstract 1
- VHNFAQLOVBWGGB-UHFFFAOYSA-N benzhydrylbenzene;3h-2-benzofuran-1-one Chemical compound C1=CC=C2C(=O)OCC2=C1.C1=CC=CC=C1C(C=1C=CC=CC=1)C1=CC=CC=C1 VHNFAQLOVBWGGB-UHFFFAOYSA-N 0.000 abstract 1
- 238000010947 wet-dispersion method Methods 0.000 abstract 1
- 239000002023 wood Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- -1 [1icooramine Chemical compound 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- FWQHNLCNFPYBCA-UHFFFAOYSA-N fluoran Chemical compound C12=CC=CC=C2OC2=CC=CC=C2C11OC(=O)C2=CC=CC=C21 FWQHNLCNFPYBCA-UHFFFAOYSA-N 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- YJTKZCDBKVTVBY-UHFFFAOYSA-N 1,3-Diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=CC(C=2C=CC=CC=2)=C1 YJTKZCDBKVTVBY-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- LIZLYZVAYZQVPG-UHFFFAOYSA-N (3-bromo-2-fluorophenyl)methanol Chemical compound OCC1=CC=CC(Br)=C1F LIZLYZVAYZQVPG-UHFFFAOYSA-N 0.000 description 1
- JWSWULLEVAMIJK-UHFFFAOYSA-N 1-phenylmethoxynaphthalene Chemical compound C=1C=CC2=CC=CC=C2C=1OCC1=CC=CC=C1 JWSWULLEVAMIJK-UHFFFAOYSA-N 0.000 description 1
- WJFKNYWRSNBZNX-UHFFFAOYSA-N 10H-phenothiazine Chemical compound C1=CC=C2NC3=CC=CC=C3SC2=C1 WJFKNYWRSNBZNX-UHFFFAOYSA-N 0.000 description 1
- TZMSYXZUNZXBOL-UHFFFAOYSA-N 10H-phenoxazine Chemical compound C1=CC=C2NC3=CC=CC=C3OC2=C1 TZMSYXZUNZXBOL-UHFFFAOYSA-N 0.000 description 1
- RYHQDYUGPBZCFQ-UHFFFAOYSA-N 2'-anilino-3'-methyl-6'-piperidin-1-ylspiro[2-benzofuran-3,9'-xanthene]-1-one Chemical compound CC1=CC=2OC3=CC(N4CCCCC4)=CC=C3C3(C4=CC=CC=C4C(=O)O3)C=2C=C1NC1=CC=CC=C1 RYHQDYUGPBZCFQ-UHFFFAOYSA-N 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 235000000177 Indigofera tinctoria Nutrition 0.000 description 1
- SIKJAQJRHWYJAI-UHFFFAOYSA-N Indole Chemical compound C1=CC=C2NC=CC2=C1 SIKJAQJRHWYJAI-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- IWGFEQWCMAADJZ-UHFFFAOYSA-N dibenzyl benzene-1,4-dicarboxylate Chemical compound C=1C=C(C(=O)OCC=2C=CC=CC=2)C=CC=1C(=O)OCC1=CC=CC=C1 IWGFEQWCMAADJZ-UHFFFAOYSA-N 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- CZZYITDELCSZES-UHFFFAOYSA-N diphenylmethane Chemical compound C=1C=CC=CC=1CC1=CC=CC=C1 CZZYITDELCSZES-UHFFFAOYSA-N 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229940097275 indigo Drugs 0.000 description 1
- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229950000688 phenothiazine Drugs 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 239000003232 water-soluble binding agent Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
- B41M5/333—Colour developing components therefor, e.g. acidic compounds
- B41M5/3333—Non-macromolecular compounds
- B41M5/3335—Compounds containing phenolic or carboxylic acid groups or metal salts thereof
- B41M5/3336—Sulfur compounds, e.g. sulfones, sulfides, sulfonamides
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は無色ないし淡色の発色性物質及び４−ヒドロキ
シ−４−イソプロポキシジフェニルスルホンを感熱層に
含む感熱記録体を製造する方法に関するものである。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a method for producing a heat-sensitive recording material containing a colorless to light-colored color-forming substance and 4-hydroxy-4-isopropoxydiphenylsulfone in the heat-sensitive layer. be.
［従来の技術］
従来、クリスタルバイオレットラクトンなど無色ないし
淡色の発色性物質とフェノール性物質が反応して発色す
ることは古くから知られており、これらを用いて熱的に
発色させることも、例えば米国特許第３５３９３７５号
において公知である。[Prior Art] It has been known for a long time that a colorless or light-colored color-forming substance such as crystal violet lactone reacts with a phenolic substance to form a color. It is known from US Pat. No. 3,539,375.
一般に上記の如き２成分系発色剤を含む感熱記録組成物
を水中で均一に分散して支持体に塗布し、乾燥して感熱
記録体を得るには、発色剤である２成分を水溶性結着剤
２分散剤等を含む水媒体中でサンドグラインダー等によ
り別々に分散し、数μＩｎないしそれ以下の微粒子とし
た後、それぞれの分散液を混合して感熱塗料を調成し、
支持体に塗布し、乾燥することにより製造する。In general, in order to obtain a heat-sensitive recording material by uniformly dispersing a heat-sensitive recording composition containing a two-component color former as described above in water, coating it on a support, and drying it, the two components as color formers are mixed into water-soluble crystals. Adhesive 2 is separately dispersed using a sand grinder or the like in an aqueous medium containing a dispersant, etc., to form fine particles of several μIn or smaller, and then the respective dispersions are mixed to prepare a heat-sensitive paint.
It is manufactured by coating it on a support and drying it.
感熱記録材料の内、無色ないし淡色の発色性物質を発色
させるフェノール性物質に関しては、従来ビスフェノー
ルＡやパラオキシ安息６酸のベンジルニスデルを用、い
ることが行なわ、れていたが、近年画像の保存安定性の
面から種々のフェノール性物質の提案があり、中でも時
開に１６０１３８５２号公報で提案された４−ヒドロキ
シ−４−イソプロポキシジフェニルスルホンが、その有
効性から注目されている。In heat-sensitive recording materials, bisphenol A and benzylnisdel, which is paraoxybenzoic acid, have traditionally been used as phenolic substances that develop color from colorless to light-colored substances. Various phenolic substances have been proposed from the viewpoint of storage stability, and among them, 4-hydroxy-4-isopropoxydiphenyl sulfone, which was proposed in Jikai Publication No. 16013852, has attracted attention because of its effectiveness.
［発明が解決しようとする課題］
本発明者等はフェノール性物質である４−ヒドロキシ−
４−イソプロポキシジフェニルスルホンを用いて保存性
の良い感熱記録体を製造する検討を行なった結果、４−
ヒドロキシ−４−イソプロポキシジフェニルスルホンに
特有な問題点、すなわち、湿式分散して微細化する際に
、ある特定の条件によっては融点が極端に低下し、感熱
記録体が地肌かぶりを起こす点に着目し、鋭意研究を行
なった結果、これが分散液の液性（水素イオン濃度）に
関係していることに知見を得て、本発明を完成するに至
った。[Problems to be Solved by the Invention] The present inventors have discovered that 4-hydroxy-, a phenolic substance,
As a result of investigating the production of heat-sensitive recording materials with good storage stability using 4-isopropoxydiphenylsulfone, we found that 4-
We focused on a problem specific to hydroxy-4-isopropoxydiphenyl sulfone, namely that when it is wet-dispersed to make it finer, the melting point drops dramatically under certain conditions, causing background fog on the heat-sensitive recording material. However, as a result of intensive research, it was discovered that this was related to the liquid properties (hydrogen ion concentration) of the dispersion, and the present invention was completed.
本発明の目的は無色ないし淡色の発色性物質とフェノー
ル性物質として、４−ヒドロキシ−４−イソプロポキシ
ジフェニルスルホンを用いて感熱記録体を製造するに際
し、保存性がすぐれた感熱配録体を安定して製造できる
方法を提供することにある。The purpose of the present invention is to stably produce a heat-sensitive recording material with excellent storage stability when producing a heat-sensitive recording material using 4-hydroxy-4-isopropoxydiphenyl sulfone as a colorless or light-colored color-forming substance and a phenolic substance. The purpose is to provide a method for manufacturing the same.
［課題を解決するための手段〕
本発明は無色ないし淡色の発色性物質及びフェノール性
物質として、４−ヒト１コキシー４−イソプロポキシジ
フェニルスルホンを感熱層に含む感熱記録体の！ｌ！ｊ
造において、前記４−ヒドロキシ−４−イソプロポキシ
ジフェニルスルホンを湿式分散し微細化する際、分散液
のｐＩ−１を８未満とげることを特徴とする感熱記録体
の製造方法でおる。[Means for Solving the Problems] The present invention provides a heat-sensitive recording material containing 4-human-1coxy-4-isopropoxydiphenylsulfone in its heat-sensitive layer as a colorless to light-colored color-forming substance and a phenolic substance! l! j
In this method, the 4-hydroxy-4-isopropoxydiphenyl sulfone is wet-dispersed and finely divided, so that the pI-1 of the dispersion is less than 8.
また、本発明は融点が約１３０℃である４−ヒドロキシ
−４−イソプロポキシジフェニルスルホンを感熱層に含
む上記の製造方法により得られる感熱記録体である。Further, the present invention is a heat-sensitive recording material obtained by the above-mentioned manufacturing method, which contains 4-hydroxy-4-isopropoxydiphenylsulfone having a melting point of about 130° C. in the heat-sensitive layer.
本発明の感熱記録体の感熱層に含まれる４−ヒドロキシ
−４−イソプロポキシジフェニルスルホンは融点が７３
０℃であるが、測定誤差又は同物質の純度により前後２
℃程度の左置はあり得る。The 4-hydroxy-4-isopropoxydiphenyl sulfone contained in the heat-sensitive layer of the heat-sensitive recording material of the present invention has a melting point of 73
0℃, but depending on measurement error or purity of the same substance, it may vary by around 2 degrees.
A left position of about ℃ is possible.
従来普通に用いられてぎたフェノール性物質であるビス
フェノールＡやバラオキシ安息ｔＢ酸の分散液はｐｌ−
１が８以上であっても何ら不都合はなかったこともあっ
て、感熱塗料の液性に関しては特１７１１１１ｉ７４９
ｉ１１４１号公報に感熱塗料の着色（カフリ）を防止す
る目的でｐＩ−１を８〜１１にすることが提案されてい
る程度で、分散液のｐＨについてほとんど問題にされる
ことはなかった。Dispersions of bisphenol A and baraoxybenzoic acid, which are phenolic substances that have been commonly used in the past, are pl-
There was no problem even if 1 was 8 or more, so regarding the liquid properties of heat-sensitive paints, special 171111i749
No. i1141 proposes setting the pI-1 to 8 to 11 for the purpose of preventing coloring (cuffing) of the heat-sensitive paint, and there has been almost no problem with the pH of the dispersion.
４−ヒドロキシ−４−インプロポキシジフェニルスルホ
ンの分散液の液性がｐＨ８以上であると何故本来の融点
１３０℃から低融点化（明確な融点はなく室温からとけ
はじめる）するかは不明であるが、分散時に水和物がで
きたり、結晶が非品性になるためではないかと考えられ
る。It is unknown why the melting point of the dispersion of 4-hydroxy-4-impropoxydiphenylsulfone decreases from its original melting point of 130°C to a lower value (it starts to melt at room temperature without a clear melting point) when its pH is higher than 8. This is thought to be due to the formation of hydrates during dispersion or the impurity of the crystals.
本発明に用いるｐＨＵ！４節剤としては、水に容易に溶
け、ＤＨを酸性サイドに調節できるものであれば、無機
酸、有機酸を問わず使用が可能である。pHU used in the present invention! As the moderating agent, any inorganic acid or organic acid can be used as long as it is easily soluble in water and can adjust the DH to the acidic side.
例えば、硫酸、ホウ酸、硝酸、塩酸等の無［１゜ギ酸、
酢酸、クエン酸、マロン酸、シゆう酸等の水溶性カルボ
ン酸などの有ｔａｉＭがあげられる。For example, sulfuric acid, boric acid, nitric acid, hydrochloric acid, etc.
Examples include water-soluble carboxylic acids such as acetic acid, citric acid, malonic acid, and oxalic acid.
本発明に用いられる無色ないし淡色の発色性物質として
は、トリフェニルメタン系、トリフェニルメタンフタリ
ド系、フルオラン系、［１イコオーラミン系、ジフェニ
ルメタン系、フェノチアジン系、フェノキサジン系、ス
ピロピラン系、インドリン系、インジゴ系などの各種誘
導体が挙げられる。中でも好ましいロイコ化合物として
は、例えばクリスタルバイオレフ１−ラクトン、３−ジ
エチルアミノ−６−メヂルー７−アニリノフルオラン。The colorless to light-colored color-forming substances used in the present invention include triphenylmethane, triphenylmethanephthalide, fluoran, [1icooramine, diphenylmethane, phenothiazine, phenoxazine, spiropyran, and indoline] , various derivatives such as indigo derivatives. Among these, preferred leuco compounds include, for example, crystal bioref 1-lactone and 3-diethylamino-6-medy-7-anilinofluorane.
３−（Ｎ−エチル−Ｐ−トルイジノ）−６−メチル−７
−アニリノフルオラン、３−ジエチルアミン−６−メチ
ル−７−（オルｌ−、パラージメヂルアニリノ）フルオ
ラン、３−ピロリジノ−６−メチル−７−アニリノフル
オラン、３−ピペリジノ−６−メチル−７−アニリノフ
ルオ”ラン、３−（Ｎ−シクロへキシル−Ｎ−メヂルア
ミノ）−６−メヂルー７−アニリノフルオーラン、３−
ジエチルアミノ−７−（オルト−クロロアニリノ）フル
オラン、３−ジエチルアミン−７−（メタ−トリフルオ
ロメチルアニリノ）フルオラン、３−ジエチルアミノー
６−メチル−９
−ジエチルアミノ−６−メチル−フルオラン、３−シク
ロへキシルアミノ−６−クロロフルオラン。3-(N-ethyl-P-toluidino)-6-methyl-7
-anilinofluorane, 3-diethylamine-6-methyl-7-(ol-,paradimedylanilino)fluorane, 3-pyrrolidino-6-methyl-7-anilinofluorane, 3-piperidino-6- Methyl-7-anilinofluoran, 3-(N-cyclohexyl-N-medylamino)-6-medy-7-anilinofluoran, 3-
Diethylamino-7-(ortho-chloroanilino)fluoran, 3-diethylamine-7-(meta-trifluoromethylanilino)fluoran, 3-diethylamino-6-methyl-9-diethylamino-6-methyl-fluoran, 3-cycloto Xylamino-6-chlorofluorane.
３−（Ｎ−イソアミル−Ｎ−エヂルアミノ）−６−メチ
ル−７−アニリノフルオラン、３−ジブチルアミノ−６
−メチル−７−アニリノフルオランが挙げられる。3-(N-isoamyl-N-edylamino)-6-methyl-7-anilinofluorane, 3-dibutylamino-6
-Methyl-7-anilinofluorane.
本発明で使用する増感剤としては、融点８０〜１３０℃
でロイコ染料又は／及び４−ヒドロキシ−４−イソプロ
ポキシジフェニルスルホンと溶融時相溶性のある公知の
物質が用いられる。例えばスラアリン酸アミド、メタタ
ーフェニル、パラベンジルビフェニル、テレフタル酸ジ
ベンジルエステル、ベンジルオキシナフタレン等が挙げ
られる。The sensitizer used in the present invention has a melting point of 80 to 130°C.
A known substance that is compatible with the leuco dye and/or 4-hydroxy-4-isopropoxydiphenyl sulfone when melted is used. Examples include suraric acid amide, metaterphenyl, parabenzylbiphenyl, terephthalic acid dibenzyl ester, benzyloxynaphthalene, and the like.
本発明で使用する結着剤としては、主として水溶性結着
剤からなり、微粒子状に分散された発色剤を互いに隔離
させて固着させるものであり、ポリビニルアルコ−ル
キシメチルセルロース、ヒドロキシエチルセルロース、
ポリアクリル酸．ガゼイン、ゼラヂン，澱粉およびこれ
らの誘導体などがあげられる。The binder used in the present invention is mainly a water-soluble binder, which isolates and fixes the coloring agent dispersed in fine particles from each other, such as polyvinyl alcohol oxymethyl cellulose, hydroxyethyl cellulose,
Polyacrylic acid. Examples include casein, geladin, starch, and their derivatives.
本発明の感熱記録層には、必要に応じて感熱層中に伯の
添加物質、例えばクレー、炭酸カルシウム、水酸化アル
ミニウム、タルク、酸化ヂタン。The heat-sensitive recording layer of the present invention may optionally contain additional substances such as clay, calcium carbonate, aluminum hydroxide, talc, and titanium oxide.
シリカ、酸化亜鉛等の黒磯または有１■１．ワックス類
，保存安定のための酸化防止剤，紫外線吸収剤，スディ
ック防止のための各種脂肪酸金属塩。Kuroiso or silica, zinc oxide, etc. 1■1. Waxes, antioxidants for storage stability, ultraviolet absorbers, and various fatty acid metal salts to prevent sudic.
耐水性向上のための耐水化剤，フェノール樹脂。Water resistance agent and phenolic resin to improve water resistance.
界面活性剤等を添加することができる。Surfactants and the like can be added.
本発明に使用される支持体としては、一般には上質紙．
中質紙．コート紙をはじめとづる紙が用いられるが、そ
の他ガラス繊維シー１− 、プラスチックシート、フィ
ルムラミネート紙なども支持体として使用することがで
きる。The support used in the present invention is generally high quality paper.
Medium quality paper. Paper such as coated paper is used, but other materials such as glass fiber sheet, plastic sheet, film laminated paper, etc. can also be used as the support.
［実施例］ 以下、本発明を実施例により更に詳細に説明する。[Example] Hereinafter, the present invention will be explained in more detail with reference to Examples.
（１）Ａ液の調製
４−ヒドロキシ−４−イソブロボキ １０ｇシジフェ
ニルスルホン
ＰＶＡ （クラレボバール１０５） １２％液 ２０ｇ
水
１ ０ ｇの配合の分散液のＤＨを酸性サイ
ドへはクエン酸を、アルカリ性サイドへは水酸化ナトリ
ウムを添加し、表に示す各Ｄ Ｈで分散試験を行うため
ｐＨ４〜１１まで変えて調成し、サンドグラインダーで
平均粒径が１μｍとなるまで分散した。（２）Ｂ液の調
製
３−（Ｎ−イソアミル−Ｎ−
エチル）アミノ−６−メチル
−７−アニリノフルオラン １０ｇメタター
フェニル ２０９ＰＶＡ （クラレ
ボバール１０５） １２％液 ５０ｇ水
２ ０ｇ
の配合の分散液をサンドグラインダーで平均粒径１μｍ
となるまで分散した。(1) Preparation of solution A 4-hydroxy-4-isobroboxylic acid 10g Sidiphenylsulfone PVA (Kuraray Bobal 105) 12% liquid 20g
water
Add citric acid to the acidic side and sodium hydroxide to the alkaline side of the dispersion liquid containing 10 g, and change the pH from 4 to 11 in order to conduct a dispersion test with each DH shown in the table. Then, the particles were dispersed using a sand grinder until the average particle size was 1 μm. (2) Preparation of solution B 3-(N-isoamyl-N-ethyl)amino-6-methyl-7-anilinofluorane 10g metaterphenyl 209PVA (Kuraray Boval 105) 12% solution 50g water
20g
The average particle size of the dispersion is 1 μm using a sand grinder.
It was dispersed until .
（３）感熱塗液の調製
Ａ液 ８ＯｇＢ液
１００ｇステアリン酸亜鉛の分散体
（中東油脂製０５２３，３０χ） ３０ｇシ
！Ｊ ７Ｊ （ 水ｔＲ化学Ｐ−８３２）
２０９ＰＶＡ （タラレボバール１０５）１２％液 ５
０ｇ水
１００４Ｆを混合して感熱塗液を得た。(3) Preparation of heat-sensitive coating liquid A liquid 8Og B liquid
100g zinc stearate dispersion (Middle East Yushi 0523,30χ) 30g! J 7J (Water tR Chemistry P-832)
209PVA (Talarebovar 105) 12% liquid 5
0g water
1004F was mixed to obtain a heat-sensitive coating liquid.
次にこの塗液を５０ｇ／ｆｆｌの上質紙の表面にメイヤ
ーバーを用いて乾燥の塗布量が５ｇ／ＴＩｔとなるよう
に塗布、乾燥〈６０℃．１分）し、感熱記録紙を ヤ１
ｌこ 。Next, this coating liquid was applied to the surface of 50g/ffl high-quality paper using a Mayer bar so that the dry coating amount was 5g/TIt, and dried at <60°C. 1 minute) and then roll the thermal recording paper
lko.
次に参考例としてＡ液の４−ヒドロキシ−４−イソプロ
ポキシジフェニルスルホンに代えてビスフェノール八を
用い、表に示す各ｐＨで分散し、以下は前記と同様にし
て感熱記録紙を得た。Next, as a reference example, bisphenol 8 was used in place of 4-hydroxy-4-isopropoxydiphenyl sulfone in Solution A, and dispersed at each pH shown in the table, and a thermosensitive recording paper was obtained in the same manner as described above.
得られた結果を表に示す。The results obtained are shown in the table.
［５′ｌ明の効果コ
以上述べたとおり本発明により、感熱層にフェノール性
物質として４−ヒトＯキシー４−イソブ１］ホ４−シジ
フェニルスルホンを用いた感熱記録体を地肌かぶりなく
、また保存時の地肌かぶりムなく製造することが可能と
なった。[Effect of 5'l Light] As described above, according to the present invention, a heat-sensitive recording material using 4-human Oxy-4-isobut-1]pho-4-sidiphenylsulfone as a phenolic substance in the heat-sensitive layer can be used without fogging the background. In addition, it has become possible to manufacture the product without fogging the skin during storage.
Claims (1)
として４−ヒドロキシ−４−イソプロポキシジフェニル
スルホンを感熱層に含む感熱記録体の製造において、前
記４−ヒドロキシ−４−イソプロポキシジフェニルスル
ホンを湿式分散し、微細化する際、分散液のｐＨを８未
満とすることを特徴とする感熱記録体の製造方法。 ２ 融点が約１３０℃である４−ヒドロキシ−４−イソ
プロポキシジフェニルスルホンを感熱層に含む請求項１
記載の製造方法により得られる感熱記録体。[Scope of Claims] 1. In the production of a heat-sensitive recording material containing 4-hydroxy-4-isopropoxydiphenylsulfone as a colorless to light-colored color-forming substance and a phenolic substance in the heat-sensitive layer, the 4-hydroxy-4-isopropoxy A method for producing a heat-sensitive recording material, characterized in that when diphenyl sulfone is wet-dispersed and micronized, the pH of the dispersion liquid is set to less than 8. 2. Claim 1, wherein the heat-sensitive layer contains 4-hydroxy-4-isopropoxydiphenyl sulfone having a melting point of about 130°C.
A thermosensitive recording material obtained by the manufacturing method described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63087237A JPH01258983A (en) | 1988-04-11 | 1988-04-11 | Thermal recording body and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63087237A JPH01258983A (en) | 1988-04-11 | 1988-04-11 | Thermal recording body and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01258983A true JPH01258983A (en) | 1989-10-16 |
Family
ID=13909220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63087237A Pending JPH01258983A (en) | 1988-04-11 | 1988-04-11 | Thermal recording body and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01258983A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05309951A (en) * | 1992-05-07 | 1993-11-22 | New Oji Paper Co Ltd | Thermal recording material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4911141A (en) * | 1972-05-29 | 1974-01-31 | ||
| JPS6013852A (en) * | 1983-07-04 | 1985-01-24 | Shin Nisso Kako Co Ltd | Diphenylsulfone derivative and color-developing recording material containing the same |
-
1988
- 1988-04-11 JP JP63087237A patent/JPH01258983A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4911141A (en) * | 1972-05-29 | 1974-01-31 | ||
| JPS6013852A (en) * | 1983-07-04 | 1985-01-24 | Shin Nisso Kako Co Ltd | Diphenylsulfone derivative and color-developing recording material containing the same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05309951A (en) * | 1992-05-07 | 1993-11-22 | New Oji Paper Co Ltd | Thermal recording material |
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