JPH0236983A - Leuco dye color developer - Google Patents
Leuco dye color developerInfo
- Publication number
- JPH0236983A JPH0236983A JP63187765A JP18776588A JPH0236983A JP H0236983 A JPH0236983 A JP H0236983A JP 63187765 A JP63187765 A JP 63187765A JP 18776588 A JP18776588 A JP 18776588A JP H0236983 A JPH0236983 A JP H0236983A
- Authority
- JP
- Japan
- Prior art keywords
- alumina
- mixture
- boron nitride
- color developer
- color
- 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.)
- Granted
Links
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims abstract description 16
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 15
- 239000000975 dye Substances 0.000 claims description 21
- 229910052582 BN Inorganic materials 0.000 abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 8
- 238000005562 fading Methods 0.000 abstract description 7
- 239000000377 silicon dioxide Substances 0.000 abstract description 4
- 229910052681 coesite Inorganic materials 0.000 abstract 3
- 229910052906 cristobalite Inorganic materials 0.000 abstract 3
- 235000012239 silicon dioxide Nutrition 0.000 abstract 3
- 229910052682 stishovite Inorganic materials 0.000 abstract 3
- 229910052905 tridymite Inorganic materials 0.000 abstract 3
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000002253 acid Substances 0.000 description 6
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 4
- 239000004927 clay Substances 0.000 description 3
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 3
- 229960004889 salicylic acid Drugs 0.000 description 3
- KJCVRFUGPWSIIH-UHFFFAOYSA-N 1-naphthol Chemical compound C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 description 2
- JWAZRIHNYRIHIV-UHFFFAOYSA-N 2-naphthol Chemical compound C1=CC=CC2=CC(O)=CC=C21 JWAZRIHNYRIHIV-UHFFFAOYSA-N 0.000 description 2
- 229940090248 4-hydroxybenzoic acid Drugs 0.000 description 2
- -1 Aromatic carboxylic acids Chemical class 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- YXVFYQXJAXKLAK-UHFFFAOYSA-N biphenyl-4-ol Chemical compound C1=CC(O)=CC=C1C1=CC=CC=C1 YXVFYQXJAXKLAK-UHFFFAOYSA-N 0.000 description 2
- 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 2
- 238000004040 coloring Methods 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 150000002989 phenols Chemical class 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- ALLSOOQIDPLIER-UHFFFAOYSA-N 2,3,4-trichlorobenzoic acid Chemical compound OC(=O)C1=CC=C(Cl)C(Cl)=C1Cl ALLSOOQIDPLIER-UHFFFAOYSA-N 0.000 description 1
- XKZQKPRCPNGNFR-UHFFFAOYSA-N 2-(3-hydroxyphenyl)phenol Chemical compound OC1=CC=CC(C=2C(=CC=CC=2)O)=C1 XKZQKPRCPNGNFR-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
- YUVVASYGZFERRP-UHFFFAOYSA-N 3-benzyl-2-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=CC(CC=2C=CC=CC=2)=C1O YUVVASYGZFERRP-UHFFFAOYSA-N 0.000 description 1
- HINSTNAJIHVPOM-UHFFFAOYSA-N 3-cyclohexyl-4-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(O)C(C2CCCCC2)=C1 HINSTNAJIHVPOM-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- ZOXJGFHDIHLPTG-BJUDXGSMSA-N Boron-10 Chemical group [10B] ZOXJGFHDIHLPTG-BJUDXGSMSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- FQUNFJULCYSSOP-UHFFFAOYSA-N bisoctrizole Chemical compound N1=C2C=CC=CC2=NN1C1=CC(C(C)(C)CC(C)(C)C)=CC(CC=2C(=C(C=C(C=2)C(C)(C)CC(C)(C)C)N2N=C3C=CC=CC3=N2)O)=C1O FQUNFJULCYSSOP-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011973 solid acid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Landscapes
- Heat Sensitive Colour Forming Recording (AREA)
- Color Printing (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野１
本発明は、感圧複写紙や感熱記録紙に用いられているロ
イコ系色素に関し、特に発色性および耐退色性、耐光性
に優れ、白色度の高いロイコ系色素用顕色剤に関するも
のである。Detailed Description of the Invention [Industrial Application Field 1] The present invention relates to leuco dyes used in pressure-sensitive copying paper and heat-sensitive recording paper. This invention relates to a color developer for leuco dyes with a high degree of strength.
［発明の概要１
近年、情報産業の急速な発展にともない、産業用、オフ
ィス用などの情報機器の端末から、容易に記録出力が得
られる感圧複写紙や感熱記録紙の利用が盛んに行われて
いる。[Summary of the Invention 1 In recent years, with the rapid development of the information industry, pressure-sensitive copying paper and thermal recording paper, which can easily obtain recording output from information equipment terminals for industrial use, office use, etc., have been actively used. It is being said.
本発明は、上記感圧複写紙や上記感熱記録紙に用いられ
ているロイコ系色素用顕色剤として、アルミナと窒化ボ
ロン（ＢＮ）の混合物、もしくは、アルミナと窒化ボロ
ン（ＢＮ）と５ｉｎ２の混合物を用いることによって、
発色および耐退色性、副光性に優れた記録を得ることが
できるようにしだロイコ系色素用顕色剤を提供すること
を目的としている。The present invention provides a mixture of alumina and boron nitride (BN), or a mixture of alumina, boron nitride (BN) and 5in2 as a color developer for the leuco dye used in the pressure-sensitive copying paper and the heat-sensitive recording paper. By using a mixture,
The object of the present invention is to provide a color developer for shida leuco dyes, which makes it possible to obtain records with excellent color development, fading resistance, and secondary light properties.
［従来の技術］
従来のロイコ系色素用顕色剤としては、α−ナフトール
、β−ナフトール、２・２′−メチレンビス（４−メチ
ル−６−クージヤリーイ・ツブチルフェノール）、２・
２′−メチレンビス（４−やロルフェノール）、４フエ
ニルフエノール、４クージヤリフチルフエノール、２・
２′−ジヒドロキシジフェノール、４・４′−セカンダ
リ−ブチリデンフェノール、４．４ シクロルヘキシリ
ジンジフェノール、４−ヒドロキシジフェノキシド、４
・４′ −イソプロピリデンジフェノールハイドロキノ
ン、４−ヒドロキシアセ１−フェノール、４・４′−イ
ソビリデンビス（２−ターシャＪ−ブヂルフェノール）
、４−ターシャワーオクチルカテコール、ノボラック型
フェノール樹脂フェノール重合体などのフェノール性化
合物やサリチル酸、３−（α−メチルベン）サリチル酸
、３・５−ジーα−ａ−メチルペンシルザリチル酸、３
−イソブロビルザリチル酸、３−クロル−５−（α−メ
ヂルペンシル）サリチル酸３−フェニル−５−（ａ α
−ジメチルペンシル）サリチル酸、３−ベンジルサリチ
ル酸、３５−ジターシャリブヂルザリチル酸、３−クシ
ヤリブチルサリチル酸、安息香酸、テレフタル酸、３・
５−ジメチル−４−ヒドロキシ安麿香酸、パラクーシャ
リブチル安息香酸、３−セカンダリブチル−４−ヒドロ
キシ安息香酸、トリクロル安息香酸、３−シクロヘキシ
ル−４−ヒドロキシ安息香酸などの芳香族カルボン酸、
及びこれらフェノール性化合物や、活性白土、酸性白土
、ケイ酸アルミニウム、ベン［・ナイト、アクパルガイ
ド、コロイタルシリカなどの固体酸や、マグネシウム、
アルミニウム、カルシウム、チタン、マンガン、スズ、
ニッケルなどの多価金属と芳香族カルボン酸との塩など
の有機酸性物質が使用されている。[Prior Art] Conventional color developers for leuco dyes include α-naphthol, β-naphthol, 2,2'-methylenebis(4-methyl-6-kudiyali subbutylphenol), 2.
2'-methylenebis (4- and lorphenol), 4-phenylphenol, 4-kuziyarifthylphenol, 2-
2'-dihydroxydiphenol, 4,4'-secondary-butylidenephenol, 4.4 cyclohexylidine diphenol, 4-hydroxydiphenoxide, 4
・4'-isopropylidene diphenol hydroquinone, 4-hydroxyace1-phenol, 4,4'-isopylidene bis(2-tersha J-butylphenol)
, 4-tershower octylcatechol, phenolic compounds such as novolak type phenolic resin phenol polymer, salicylic acid, 3-(α-methylben)salicylic acid, 3,5-diα-a-methylpencilsalicylic acid, 3
-isobrobylsalicylic acid, 3-phenyl-5-(a α
-dimethylpencil) salicylic acid, 3-benzylsalicylic acid, 35-ditertiarybutylsalicylic acid, 3-cushiybutylsalicylic acid, benzoic acid, terephthalic acid, 3.
Aromatic carboxylic acids such as 5-dimethyl-4-hydroxybenzoic acid, paracoushabutylbenzoic acid, 3-secandabutyl-4-hydroxybenzoic acid, trichlorobenzoic acid, 3-cyclohexyl-4-hydroxybenzoic acid,
and these phenolic compounds, solid acids such as activated clay, acid clay, aluminum silicate, benite, acpulgide, coroital silica, magnesium,
aluminum, calcium, titanium, manganese, tin,
Organic acidic substances such as salts of polyvalent metals such as nickel and aromatic carboxylic acids are used.
［発明が解決しようとしている課題］
しかし、従来の有機化合物をロイコ系色素用顕色剤とし
て用いた場合、発色性があまり良好でなく、退色すると
いう問題があった。また、光照射による着色や大気中の
窒素化合物による黄変が激しいなど問題があった。また
、活性白土などは、黄角味を帯びており良好な画像を得
ることができなかった。[Problems to be Solved by the Invention] However, when conventional organic compounds were used as color developers for leuco dyes, there was a problem in that the color development was not very good and the color faded. In addition, there were problems such as coloring due to light irradiation and severe yellowing due to nitrogen compounds in the atmosphere. Furthermore, activated clay and the like had a yellowish tint, making it impossible to obtain good images.
そこで、本発明（」、従来のこの様な問題点を解決する
ために、発色性に優れ、また耐退色性、耐光性に優れ、
白色度の高いロイコ系色素用顕色剤を提供することを目
的としている。Therefore, in order to solve these conventional problems, the present invention (''
The purpose is to provide a color developer for leuco dyes with high whiteness.
［課題を解決するための手段］
本発明は、上記課題を解決するために、ロイコ系色素用
顕色剤としてアルミナと窒化ボロン（ＢＮ）の混合物、
もしくは、アルミナと窒化ボロン（ＢＮ）とＳｉＯ□の
）捏合物を用いることによって、発色性を向上さセ、ま
た、耐退色性、耐光性を向上させるようにしたものであ
る。さらに、アルミナ、窒化ボロン（ＢＮ）、及び、Ｓ
ｉＯ２は、白色度も高いために、良好な画像を得られる
ようにしたものである。[Means for Solving the Problems] In order to solve the above problems, the present invention uses a mixture of alumina and boron nitride (BN) as a color developer for leuco dyes,
Alternatively, by using a mixture of alumina, boron nitride (BN), and SiO□, the coloring property is improved, and the fading resistance and light resistance are also improved. Furthermore, alumina, boron nitride (BN), and S
Since iO2 has a high degree of whiteness, it is possible to obtain good images.
［実施例］
以下に本発明の実施例を示すが、本発明はこれに限定さ
れるものではない。[Example] Examples of the present invention are shown below, but the present invention is not limited thereto.
［実施例１］
５％（Ｗ ／ Ｗ ）の濃度のポリビニルアルコール水
溶液５０重量部に、アルミナ１５重量部、ＢＮ１５重量
部を加え、ボールミルを用いて約２４時間粉砕分散し、
顕色剤分散液とした。この顕色剤分散液をバーコーク−
を用いて、４０ｇ、／ｍ”の」１質紙上に、２０ｇ／ｍ
２ （乾燥重量）となるように塗工し、ロイコ系色素用
顕色シー１−とした。[Example 1] 15 parts by weight of alumina and 15 parts by weight of BN were added to 50 parts by weight of a polyvinyl alcohol aqueous solution with a concentration of 5% (W/W), and the mixture was pulverized and dispersed for about 24 hours using a ball mill.
A color developer dispersion was prepared. This color developer dispersion was mixed with bar coke.
20g/m on 40g/m"
2 (dry weight) to obtain a color developer sheet for leuco dyes 1-.
このロイコ系色素用顕色シートを、ロイコ系色素を用い
た感圧複写紙と合わせ、１２０Ｋｇ／Ｃｍ２の圧力で発
色させ、濃度を測定した。また、耐退色性を調べるため
に、発色直後より５００時間後に発色濃度を測定した。This color developer sheet for leuco dye was combined with pressure-sensitive copying paper using leuco dye, color was developed under a pressure of 120 kg/cm2, and the density was measured. Furthermore, in order to examine the resistance to fading, the color density was measured 500 hours after color development.
以上の測定値を表１に示す。The above measured values are shown in Table 1.
［実施例２］
５％（Ｗ ／ Ｗ ）の濃度のポリビニルアルコール水
滴液５０重量部に、アルミナ１０重量部、ＢＮ１０重量
部、Ｓ １０２１０重量部を加え、ボールミルを用いて
約２４時間粉砕分散し、顕色剤分散液とした。この顕色
剤分散液をバーコーターを用いて、４０ ｇ ／ ｍ
２の上質紙上に、２０ｇ／ｒｎ２（乾燥重量）となるよ
うに塗工し、ロイコ系色素用顕色シートとした。このロ
イコ系色素用顕色シートを、ロイコ系色素を用いた感圧
複写紙と合わせ、１２０Ｋｇ／ｃｍの圧力て発色さゼ、
濃度を測定した。また、耐退色性を調べるために、発色
直後より５００時間後に発色濃度を測定した。[Example 2] 10 parts by weight of alumina, 10 parts by weight of BN, and 10 parts by weight of S were added to 50 parts by weight of polyvinyl alcohol water droplets having a concentration of 5% (W/W), and the mixture was pulverized and dispersed for about 24 hours using a ball mill. , and a color developer dispersion. This developer dispersion was coated at 40 g/m using a bar coater.
2 on high quality paper at a weight of 20 g/rn2 (dry weight) to obtain a color developing sheet for leuco dyes. This color developing sheet for leuco dyes was combined with pressure-sensitive copying paper using leuco dyes, and the color was developed under a pressure of 120 kg/cm.
The concentration was measured. Furthermore, in order to examine the resistance to fading, the color density was measured 500 hours after color development.
以上の測定値を表１に示す。The above measured values are shown in Table 1.
［比較例］
上記の実施例と比較するために、公知のロイコ系色素用
顕色剤のひとっである、ビスフェノールＡについて、実
施例１．２と同様の測定を行い測定値を表１に示す。[Comparative Example] In order to compare with the above example, bisphenol A, which is one of the known color developers for leuco dyes, was measured in the same manner as in Example 1.2, and the measured values are shown in Table 1. show.
表 １
［発明の効果］
以上のように、ロイコ系色素用顕色剤としてアルミナと
窒化ポロン（ＢＮ）の混合物、もしくは、アルミナと窒
化ポロン（ＢＮ）と５ｉｎ２の混合物を用いることによ
って、発色性に優れ、また耐退色性、耐光性に優れ、白
色度の高いロイコ系色素用顕色剤を提供することができ
る。Table 1 [Effects of the invention] As described above, by using a mixture of alumina and poron nitride (BN) or a mixture of alumina and poron nitride (BN) 5in2 as a color developer for leuco dyes, the color development property can be improved. It is possible to provide a color developer for leuco dyes that has excellent properties, excellent fading resistance, light resistance, and high whiteness.
Claims (2)
ボロン（ＢＮ）の混合物をもちいたことを特徴とするロ
イコ系色素用顕色剤。(1) A color developer for leuco dyes, characterized in that a mixture of alumina and boron nitride (BN) is used as the color developer for leuco dyes.
ボロン（ＢＮ）とＳｉＯ＿２の混合物をもちいたことを
特徴とするロイコ系色素用顕色剤。(2) A color developer for leuco dyes, characterized in that a mixture of alumina, boron nitride (BN), and SiO_2 is used as a color developer for leuco dyes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63187765A JPH0236983A (en) | 1988-07-27 | 1988-07-27 | Leuco dye color developer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63187765A JPH0236983A (en) | 1988-07-27 | 1988-07-27 | Leuco dye color developer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0236983A true JPH0236983A (en) | 1990-02-06 |
| JPH0476790B2 JPH0476790B2 (en) | 1992-12-04 |
Family
ID=16211817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63187765A Granted JPH0236983A (en) | 1988-07-27 | 1988-07-27 | Leuco dye color developer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0236983A (en) |
-
1988
- 1988-07-27 JP JP63187765A patent/JPH0236983A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0476790B2 (en) | 1992-12-04 |
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| JPS6135284A (en) | Releasable paper for two-color thermal recording type label | |
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| JPH0236985A (en) | Leuco dye color developer | |
| JPH0118877B2 (en) | ||
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| JPH0236984A (en) | Leuco dye color developer | |
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| JPS6311998B2 (en) | ||
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Legal Events
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| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
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| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
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| LAPS | Cancellation because of no payment of annual fees |