JPS62799B2 - - Google Patents
Info
- Publication number
- JPS62799B2 JPS62799B2 JP55017397A JP1739780A JPS62799B2 JP S62799 B2 JPS62799 B2 JP S62799B2 JP 55017397 A JP55017397 A JP 55017397A JP 1739780 A JP1739780 A JP 1739780A JP S62799 B2 JPS62799 B2 JP S62799B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- activated clay
- color developer
- developer sheet
- coating liquid
- 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
- 238000000576 coating method Methods 0.000 claims description 38
- 239000011248 coating agent Substances 0.000 claims description 37
- 239000004927 clay Substances 0.000 claims description 36
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 28
- 239000007788 liquid Substances 0.000 claims description 25
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 14
- 239000002270 dispersing agent Substances 0.000 claims description 14
- 239000004816 latex Substances 0.000 claims description 14
- 229920000126 latex Polymers 0.000 claims description 14
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 13
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 13
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 12
- 239000002174 Styrene-butadiene Substances 0.000 claims description 12
- 239000011115 styrene butadiene Substances 0.000 claims description 12
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- 150000002894 organic compounds Chemical class 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000006116 polymerization reaction Methods 0.000 claims description 3
- 238000007127 saponification reaction Methods 0.000 claims description 3
- 239000003094 microcapsule Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 239000003463 adsorbent Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 17
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 8
- 239000002253 acid Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 6
- 238000004040 coloring Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 4
- 229940048086 sodium pyrophosphate Drugs 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 4
- 230000007423 decrease Effects 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
- 239000002245 particle Substances 0.000 description 3
- 239000005011 phenolic resin Substances 0.000 description 3
- 238000010298 pulverizing process Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 229960004889 salicylic acid Drugs 0.000 description 3
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- GJYCVCVHRSWLNY-UHFFFAOYSA-N 2-butylphenol Chemical compound CCCCC1=CC=CC=C1O GJYCVCVHRSWLNY-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-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
- 239000002775 capsule Substances 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- LNTHITQWFMADLM-UHFFFAOYSA-N gallic acid Chemical compound OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 description 2
- -1 malachite green lactone Chemical class 0.000 description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 2
- 239000011976 maleic acid Substances 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 2
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 2
- 235000019832 sodium triphosphate Nutrition 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 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
- TUSDEZXZIZRFGC-UHFFFAOYSA-N 1-O-galloyl-3,6-(R)-HHDP-beta-D-glucose Natural products OC1C(O2)COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC1C(O)C2OC(=O)C1=CC(O)=C(O)C(O)=C1 TUSDEZXZIZRFGC-UHFFFAOYSA-N 0.000 description 1
- LNETULKMXZVUST-UHFFFAOYSA-N 1-naphthoic acid Chemical compound C1=CC=C2C(C(=O)O)=CC=CC2=C1 LNETULKMXZVUST-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-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
- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 description 1
- NTDQQZYCCIDJRK-UHFFFAOYSA-N 4-octylphenol Chemical compound CCCCCCCCC1=CC=C(O)C=C1 NTDQQZYCCIDJRK-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- 239000001263 FEMA 3042 Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 238000012695 Interfacial polymerization Methods 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- LRBQNJMCXXYXIU-PPKXGCFTSA-N Penta-digallate-beta-D-glucose Natural products OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-PPKXGCFTSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 229920000147 Styrene maleic anhydride Polymers 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- ZKURGBYDCVNWKH-UHFFFAOYSA-N [3,7-bis(dimethylamino)phenothiazin-10-yl]-phenylmethanone Chemical compound C12=CC=C(N(C)C)C=C2SC2=CC(N(C)C)=CC=C2N1C(=O)C1=CC=CC=C1 ZKURGBYDCVNWKH-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 229960000892 attapulgite Drugs 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- KADNTLDIZHQFCB-UHFFFAOYSA-N benzo[f]chromene Chemical compound C1=CC2=CC=CC=C2C2=C1OC=C=C2 KADNTLDIZHQFCB-UHFFFAOYSA-N 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- YXVFYQXJAXKLAK-UHFFFAOYSA-N biphenyl-4-ol Chemical compound C1=CC(O)=CC=C1C1=CC=CC=C1 YXVFYQXJAXKLAK-UHFFFAOYSA-N 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 238000005354 coacervation Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- GWZCCUDJHOGOSO-UHFFFAOYSA-N diphenic acid Chemical compound OC(=O)C1=CC=CC=C1C1=CC=CC=C1C(O)=O GWZCCUDJHOGOSO-UHFFFAOYSA-N 0.000 description 1
- XPPKVPWEQAFLFU-UHFFFAOYSA-N diphosphoric acid Chemical compound OP(O)(=O)OP(O)(O)=O XPPKVPWEQAFLFU-UHFFFAOYSA-N 0.000 description 1
- 229940074391 gallic acid Drugs 0.000 description 1
- 235000004515 gallic acid Nutrition 0.000 description 1
- LRBQNJMCXXYXIU-QWKBTXIPSA-N gallotannic acid Chemical compound OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@H]2[C@@H]([C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-QWKBTXIPSA-N 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 150000003951 lactams Chemical class 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229940107698 malachite green Drugs 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-M naphthalene-1-sulfonate Chemical compound C1=CC=C2C(S(=O)(=O)[O-])=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-M 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 235000013808 oxidized starch Nutrition 0.000 description 1
- 239000001254 oxidized starch Substances 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229940005657 pyrophosphoric acid Drugs 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 1
- 229940043267 rhodamine b Drugs 0.000 description 1
- 150000003870 salicylic acids Chemical class 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 229940032158 sodium silicate Drugs 0.000 description 1
- 235000019794 sodium silicate Nutrition 0.000 description 1
- 239000011973 solid acid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 235000015523 tannic acid Nutrition 0.000 description 1
- 229940033123 tannic acid Drugs 0.000 description 1
- 229920002258 tannic acid Polymers 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 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
- B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
- B41M5/132—Chemical colour-forming components; Additives or binders therefor
- B41M5/155—Colour-developing components, e.g. acidic compounds; Additives or binders therefor; Layers containing such colour-developing components, additives or binders
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Color Printing (AREA)
Description
本発明はノーカーボン複写紙用顕色剤シートの
製造方法に関するものでありさらに詳しくはあら
かじめ分散剤を混和した固体（粉体）の活性白土
を顕色剤としその一部を炭酸カルシウムに置き換
え接着剤としてポリビニルアルコールとスチレン
ブタジエンラテツクスを使用することを特徴とす
る顕色剤シートの製造方法に関する。ノーカーボ
ン複写紙は公知であり、例えば米国特許第
2712507号、同第2730465号、同第2730457号明細
書などに記載されている様に電子供与性、被吸着
性、呈色反応性を有する無色有機化合物（以下発
色剤と称す）の有機溶媒の溶液を含有したマイク
ロカプセルと電子受容性の反応性、吸着物質（以
下顕色剤と称す）を利用したものである。従来よ
りマイクロカプセル化法はコアセルベーシヨン
法、インサイチユー（in situ）法、界面重合法
などによりおこなわれており、発色剤としてはマ
ラカイトグリーンラクトン、クリスタルバイオレ
ツトラクトン、ベンゾイルロイコメチレンブル
ー、ローダミン・Ｂ・ラクタム、３−ジアルキル
アミノ−７−ジアルキルアミルフルオラン、３−
メチル−２・２−スピロピ（ベンゾ−〔ｆ〕−クロ
メン）などが使用されており、前記の顕色剤とし
ては一般に酸性白土、活性白土、アタパルジヤイ
ト、ゼオライト、ベントナイトなどの固体酸を用
いる方法とパラターシヤリブチルフエノール樹
脂、パラフエニルフエノール樹脂、パラオクチル
フエノール樹脂などのフエノール樹脂、或いはコ
ハク酸、タンニン酸、マロン酸、マレイン酸、没
食子酸などの有機化合物、さらに安息香酸、サリ
チル酸、置換サリチル酸、ナフトエ酸、ジフエン
酸などの芳香族カルボン酸、又はそれらの金属化
合物などを用いる方法がある。
これら顕色剤のうち特性上より実際に使用され
ているものは活性白土、フエノール樹脂及び置換
サリチル酸である。
これら顕色剤のうち有機顕色剤のフエノール樹
脂、置換サリチル酸（塩）は塗液の高濃度塗抹が
可能であるが印刷適性が悪く、又化学合成品であ
りコスト高となる。一方無機顕色剤の活性白土は
インキ吸収性のごとき印刷適性に優れ、コスト安
である塗液がゲル化気味で高濃度塗抹ができない
という欠点がある。
顕色剤に使用する活性白土は特公昭41−2373
号、同第41−7622号、同第42−8811号公報に記載
されている様に酸性白土、或いはこれに類似の粘
土類を鉱酸にて処理し、酸に可溶のアルミナ、
鉄、その他の塩基性成分を溶出してその表面積を
200m2／ｇ以上としたものである。また、こうし
て作られた活性白土は亜鉛、マグネシウムなどの
塩類が混合されても使用される。
Ｘ線的に観察しても活性白土は無定形であり、
また比表面積も大きく、一般紙塗工用の顔料とは
著しく性質を異にするものである。実際に活性白
土を水に分散するに際しその粒子形状及び表面活
性などのため多量の水を必要とする。
代表的な紙塗工用クレーであるカオリンは水系
分散時は70パーセント以上の濃度まで流動性を有
するが一方活性白土は45パーセント程度の濃度で
高粘度となり流動性を失いゲル化してしまう。現
在、生産性及び省エネルギーの点より高濃度塗液
で塗抹することが望まれているが活性白土は前に
述べた理由により高濃度塗液の調製が非常に困難
なため、現状では低濃度塗液を用いたエアーナイ
フコーター方式が主に行なわれている。
本発明の目的は活性白土使用のノーカーボン複
写紙顕色剤シート用塗液を低粘度化し、流動性を
よくし、高濃度塗抹を可能ならしめることにあ
る。
本発明はあらかじめ分散剤を乾式混合した固体
（粉体）の活性白土と炭酸カルシウムを併用し接
着剤としてポリビニルアルコールとスチレンブタ
ジエンラテツクスを使用して顕色剤シート用塗液
にする。
本発明により活性白土の水との分散性及び流動
性が非常によくなり塗液の低粘度化が可能となり
高濃度での塗抹を可能とし塗抹量のコントロール
がしやすく塗抹作業性が向上しそれと共に、省エ
ネルギー化、生産性の向上が図られた。
さらに得られた塗抹紙は面質が良くなり、それ
と共に平滑性が向上し、スマツジ（マサツによる
発色汚れ）が少なくなり表面強度が向上するとい
う効果があきらかになつた。本発明に使用する活
性白土は一般に酸性白土を酸処理し水洗し、乾
燥、粉砕することにより製造する。
本発明に使用する分散剤を混和する方法はいろ
いろあるが１法は酸性白土を酸処理して水洗後に
分散剤を水溶液として添加する方法。２法は酸処
理し乾燥前に粉体の分散剤を添加混合して行なう
方法。３法は乾燥後に粉体の分散剤を添加混合し
て粉砕を行なう方法。４法は粉砕後に粉体の分散
剤を添加混合する方法などがありいずれの方法で
行なつても良好な結果が得られたがこれらの方法
に限られるものではない。
本発明に使用する分散剤としてはトリポリリン
酸ナトリウム、ヘキサメタリン酸ナトリウム、ピ
ロリン酸ナトリウム、ケイ酸ナトリウムなどの無
機分散剤。カルボン酸系（アクリル酸塩など）、
マレイン酸系（スチレン無水マレイン酸塩な
ど）、スルホン酸系（ナフタレンスルホン酸塩な
ど）の有機分散剤が使用できる。
分散剤の好適添加量は活性白土に対して0.1乃
至15重量パーセントであり特に好ましくは1.0乃
至8.0重量パーセントである。0.1重量パーセント
以下では充分な効果を示さず15重量パーセント以
上では効果は得られるが発色濃度が低下し実用的
ではない。
特に効果の著しい分散剤の例としてはピロリン
酸ナトリウム、トリポリリン酸ナトリウム、ヘキ
サメタリン酸ナトリウムをあげることができる。
本発明に使用する炭酸カルシウムは重質、軽質
共に使用できる。特に好ましい炭酸カルシウムと
しては粒子径が0.1乃至1.0ミクロンの立方形軽質
炭酸カルシウム、平均粒子径が1.0ミクロンの重
質炭酸カルシウムであるが特に限定されるもので
はない。
又、活性白土との併用量は活性白土95重量パー
セントに炭酸カルシウム５重量パーセント乃至活
性白土75重量パーセント炭酸カルシウム25重量パ
ーセントの範囲で特に好ましくは活性白土90乃至
85重量パーセントに炭酸カルシウム10乃至15重量
パーセントである。炭酸カルシウム５重量パーセ
ント以下では充分な効果を示さず25重量パーセン
ト以上では発色濃度が低下し顕色剤シート用塗液
としては不完全である。
本発明に使用するポリビニルアルコールはケン
化度が98モルパーセント以上で重合度が700以下
のポリビニルアルコールを使用する。前記以外の
ポリビニルアルコールは塗液の流動性に有効な効
果を示さない。使用量は活性白土に対して1.0乃
至10.0重量パーセントで特に好ましくは2.5乃至
6.0重量パーセントである。ポリビニルアルコー
ル1.0重量パーセント以下では充分な流動性が得
られず10重量パーセント以上では高粘度となり高
濃度塗液としては不充分である。
本発明に使用するスチレンブタジエンラテツク
スは主成分とするスチレンが55乃至65重量パーセ
ントを含むスチレンブタジエンラテツクスであ
る。
スチレンの含有パーセントが前記より増減する
と塗抹紙の耐水性が悪く印刷適性に問題を生ず
る。尚、本発明に使用するスチレンブタジエンラ
テツクスに接着力及び耐水性向上のためアクリル
酸、メタアクリル酸、イタコン酸の如き不飽和カ
ルボン酸を共重合したカルボキシル変性スチレン
ブタジエンラテツクスでも本発明の目的は疎外さ
れない。スチレンブタジエンラテツクスの使用量
は活性白土に対して0.5乃至20.0重量パーセント
である。特に好ましくは8.0乃至15.0重量パーセ
ントである。5.0重量パーセント以下では充分な
流動性が得られず20.0重量パーセント以上では発
色能力の低下が現われ、実用的ではない。
本発明の活性白土、炭酸カルシウム、ポリビニ
ルアルコール、スチレンブタジエンラテツクスを
使用し顕色剤シート用塗液とすることにより高濃
度での分散性がよくなり優れた流動性を示し塗抹
量をコントロールもしやすく、またコーターヘツ
ドへの塗液の供給及び回収も容易に行なわれコー
ター塗抹作業性が非常に向上した。また紙の如き
支持体に塗抹した塗抹紙においても面積がよいた
めに平滑性がよくカプセル面とこすれてもカプセ
ルを破壊することが少なく発色汚れをおこしにく
い。又表面強度も向上した。
本発明の高濃度とは塗液が45パーセント以上の
場合であり一般のコーテイングでの高濃度塗抹よ
りは低濃度である。
以下具体的な例について述べる。尚、発色剤シ
ートは市販ノーカーボン複写紙上用紙「三菱
NCR紙上−40」を使用した。
ノーカーボン複写紙顕色剤シートの製造
実施例 １
添加水60重量部に10％ポリビニルアルコール
（クラレ(株)製、PVA−105、ケン化度98.5モルパー
セント、重合度500）水溶液50重量部を混合した
溶液に重質炭酸カルシウム（備化粉化(株)製ソフト
ン＃2200）12.5重量部を撹拌しながら除々に添加
しよく分散したのち粉体の活性白土100重量部に
粉体のピロリン酸ナトリウム３重量部を添加し均
一になる様乾式混合した活性白土を87.5重量部を
撹拌しながら除々に添加し、よく分散したのち、
スチレンブタジエンラテツクス（ダウケミカル(株)
製Dow670、スチレン約60重量パーセント）10重
量部（固形分）添加しよく撹拌したのち20％カセ
イソーダでPHを9.5とし塗液とした。
この塗液を40ｇ／m2の上質紙に塗抹量が８ｇ／
m2（固形分）となる様にブレードコーターで塗抹
した。
比較例 １
添加水60重量部にピロリン酸ナトリウム1.0重
量部を添加し完全溶解したのち10％ポリビニルア
ルコール（PVA105）水溶液50重量部を混合した
溶液に活性白土100重量部を撹拌しながら除々に
添加しよく分散したのちアクリル系ラテツクス
（東洋インク(株)製、トクリールＳ−20、アクリル
酸エステルとスチレンの共重合体）10重量部（固
定分）添加しよく撹拌したのち20％カセイソーダ
でPHを9.5とし塗液とした。この塗液を40ｇ／m2
の上質紙に塗抹量が８ｇ／m2（固形分）となる様
にブレードコーターで塗抹した。
比較例 ２
添加水60重量部にピロリン酸ナトリウム1.0重
量部を添加し完全溶解したのち10％酸化デンプン
（日本食品(株)製MS−3800）水溶液50重量部を混合
した溶液に活性白土100重量部を撹拌しながら
除々に添加しよく分散したのちスチレンブタジエ
ンラテツクスDow670を10重量部（固形分）添加
しよく撹拌したのち20％カセイソーダでPHを9.5
とし塗液とした。この塗液を40ｇ／m2の上質紙に
塗抹量が８ｇ／m2（固形分）となる様にブレード
コーターで塗抹した。
試験結果
この様にして得られた塗液及び顕色剤シートに
ついて下記の様な方法にて試験、測定した。
Γ塗液
●粘度
Ｂ型粘度計（東京計器(株)製）でローターNo.４を
用いた60rpm1分後の値（cps：センチポイズ）
実施例１、比較例１、２、についてハーキユレス
型ハイシエアービスコメーター（日本理学工業
(株)製）での粘性曲線を図１，２，３に示す。
●形分
110℃で16時間乾燥させその固形分を測定し
た。
Γ顕色剤シート
●平滑性
熊谷理機(株)製のベツク平滑試験器で測定。数値
（秒）が大きい程平滑性がよい。
●スマツジ（マサツによる発色汚れ）
300ｇ／cm2の重量をかけて前述の発色紙とこす
り合わせ、この処理顕色剤シートの汚れを日本電
色測色色差計にて反射率（％）を測定した。値の
高い程汚れが少ないことを表わしている。
●表面強度
IGT試験器（熊谷理機(株)製）を使用してIPINo.
４インキＢスプリングで測定した。その強度を
〇、○△とした。
●発色濃度
顕色剤シートを前述発色紙と合わせて96Kg／cm
の圧力でカレンダーを通して発色させ下記の値を
測定した。
発色濃度（％）＝発色部の反射率／白紙部の反射率
×100
（カレンダー通したのち１時間後）
Γ塗液
The present invention relates to a method for manufacturing a color developer sheet for carbonless copying paper, and more specifically, solid (powder) activated clay mixed with a dispersant in advance is used as a color developer, and a part of it is replaced with calcium carbonate for adhesion. The present invention relates to a method for producing a color developer sheet, characterized in that polyvinyl alcohol and styrene-butadiene latex are used as agents. Carbonless copying paper is known, for example as described in U.S. Pat.
As described in No. 2712507, No. 2730465, No. 2730457, etc., organic solvents for colorless organic compounds (hereinafter referred to as color formers) having electron-donating properties, adsorption properties, and coloring reactivity are used. It utilizes microcapsules containing a solution, electron-accepting reactivity, and an adsorbing substance (hereinafter referred to as a color developer). Conventionally, microencapsulation methods have been carried out by coacervation method, in situ method, interfacial polymerization method, etc. Color formers include malachite green lactone, crystal violet lactone, benzoylleucomethylene blue, and rhodamine B.・Lactam, 3-dialkylamino-7-dialkylamylfluorane, 3-
Methyl-2,2-spiropy(benzo-[f]-chromene), etc. are used, and as the color developer, solid acids such as acid clay, activated clay, attapulgite, zeolite, and bentonite are generally used. Phenol resins such as paratarsia butylphenol resin, paraphenylphenol resin, and paraoctylphenol resin, or organic compounds such as succinic acid, tannic acid, malonic acid, maleic acid, and gallic acid, as well as benzoic acid, salicylic acid, substituted salicylic acid, There is a method using aromatic carboxylic acids such as naphthoic acid and diphenic acid, or metal compounds thereof. Among these color developers, activated clay, phenolic resin, and substituted salicylic acid are actually used due to their characteristics. Among these color developers, phenolic resins and substituted salicylic acids (salts), which are organic color developers, enable high-concentration coating of coating liquids, but have poor printability and are chemically synthesized products, resulting in high costs. On the other hand, activated clay, which is an inorganic color developer, has excellent printability such as ink absorption and is inexpensive, but it has the disadvantage that the coating liquid tends to gel, making it impossible to apply at high concentration. The activated clay used in the color developer was published in 1973-2373.
As described in No. 41-7622 and No. 42-8811, acid clay or similar clays are treated with mineral acid to produce acid-soluble alumina,
Elute iron and other basic components and increase their surface area.
200m 2 /g or more. Furthermore, the activated clay made in this way can be used even if it is mixed with salts such as zinc and magnesium. Activated clay is amorphous even when observed by X-rays,
It also has a large specific surface area, and its properties are significantly different from those of general paper coating pigments. When activated clay is actually dispersed in water, a large amount of water is required due to its particle shape and surface activity. Kaolin, a typical paper coating clay, has fluidity up to a concentration of 70% or more when dispersed in an aqueous system, whereas activated clay becomes highly viscous at a concentration of about 45% and loses its fluidity and turns into a gel. Currently, it is desired to apply coating with a high concentration coating liquid from the viewpoint of productivity and energy saving, but because activated clay is extremely difficult to prepare a high concentration coating liquid for the reasons mentioned above, it is currently difficult to apply coating with a low concentration coating liquid. An air knife coater method using a liquid is mainly used. The object of the present invention is to reduce the viscosity of a coating liquid for a color developer sheet for carbonless copying paper using activated clay, improve its fluidity, and enable high-density smearing. In the present invention, a coating liquid for a color developer sheet is prepared by using a combination of solid (powder) activated clay and calcium carbonate, which have been dry-mixed with a dispersant in advance, and polyvinyl alcohol and styrene-butadiene latex as an adhesive. According to the present invention, activated clay has very good dispersibility and fluidity with water, making it possible to lower the viscosity of the coating liquid, making it possible to apply at a high concentration, making it easier to control the amount of application, and improving application workability. At the same time, efforts were made to save energy and improve productivity. Furthermore, the obtained smeared paper had improved surface quality, improved smoothness, reduced smudges (colored stains due to smudges), and improved surface strength. The activated clay used in the present invention is generally produced by acid-treating acid clay, washing with water, drying, and pulverizing. There are various methods for mixing the dispersant used in the present invention, but one method is to treat acid clay with an acid, wash it with water, and then add the dispersant as an aqueous solution. The second method is to add and mix a powder dispersant before acid treatment and drying. Method 3 is a method in which a powder dispersant is added and mixed after drying and pulverization is performed. Method 4 includes a method in which a powder dispersant is added and mixed after pulverization, and good results were obtained no matter which method was used, but the method is not limited to these methods. Examples of the dispersant used in the present invention include inorganic dispersants such as sodium tripolyphosphate, sodium hexametaphosphate, sodium pyrophosphate, and sodium silicate. Carboxylic acids (acrylates, etc.),
Maleic acid-based (styrene maleic anhydride, etc.) and sulfonic acid-based (naphthalene sulfonate, etc.) organic dispersants can be used. The preferred amount of the dispersant added is 0.1 to 15% by weight, particularly preferably 1.0 to 8.0% by weight, based on the activated clay. If the amount is less than 0.1% by weight, sufficient effect will not be exhibited, and if it is more than 15% by weight, the effect may be obtained, but the coloring density will decrease, making it impractical. Examples of particularly effective dispersants include sodium pyrophosphate, sodium tripolyphosphate, and sodium hexametaphosphate. Both heavy and light calcium carbonate can be used in the present invention. Particularly preferred calcium carbonate is cubic light calcium carbonate with a particle diameter of 0.1 to 1.0 microns, and heavy calcium carbonate with an average particle diameter of 1.0 microns, but is not particularly limited. The combined amount of activated clay is in the range of 95% by weight of activated clay and 5% by weight of calcium carbonate to 75% by weight of activated clay and 25% by weight of calcium carbonate, particularly preferably 90% to 25% by weight of activated clay.
85% by weight and 10-15% by weight of calcium carbonate. If calcium carbonate is less than 5% by weight, sufficient effects will not be exhibited, and if it is more than 25% by weight, the color density will decrease and the coating solution for color developer sheets will be incomplete. The polyvinyl alcohol used in the present invention has a saponification degree of 98 mol percent or more and a polymerization degree of 700 or less. Polyvinyl alcohols other than those mentioned above do not have an effective effect on the fluidity of the coating liquid. The amount used is 1.0 to 10.0% by weight, preferably 2.5 to 10.0% by weight, based on activated clay.
6.0% by weight. If polyvinyl alcohol is less than 1.0% by weight, sufficient fluidity cannot be obtained, and if it is more than 10% by weight, the viscosity becomes high and is insufficient for a highly concentrated coating liquid. The styrene-butadiene latex used in the present invention is a styrene-butadiene latex containing 55 to 65 weight percent of styrene as a main component. If the content percentage of styrene is increased or decreased from the above range, the water resistance of the smeared paper will be poor, causing problems in printability. Furthermore, carboxyl-modified styrene-butadiene latex, which is obtained by copolymerizing the styrene-butadiene latex used in the present invention with unsaturated carboxylic acids such as acrylic acid, methacrylic acid, and itaconic acid, to improve adhesive strength and water resistance, can also be used for the purpose of the present invention. are not left out. The amount of styrene-butadiene latex used is 0.5 to 20.0 percent by weight based on activated clay. Particularly preferred is 8.0 to 15.0 weight percent. If it is less than 5.0% by weight, sufficient fluidity cannot be obtained, and if it is more than 20.0% by weight, the coloring ability decreases, which is not practical. By using the activated clay, calcium carbonate, polyvinyl alcohol, and styrene-butadiene latex of the present invention to form a coating liquid for color developer sheets, it has good dispersibility at high concentrations, exhibits excellent fluidity, and can control the amount of coating. Moreover, the coating liquid can be easily supplied to and collected from the coater head, and the coater coating workability has been greatly improved. Furthermore, even when smeared on a support such as paper, the coating has a good surface area, has good smoothness, and even if it rubs against the capsule surface, the capsule will not be destroyed, and color development stains will be less likely to occur. The surface strength was also improved. In the present invention, high concentration means that the coating liquid is 45% or more, which is lower than the high concentration smearing in general coatings. A specific example will be described below. The coloring agent sheet is a commercially available carbonless copying paper "Mitsubishi
NCR Paper-40'' was used. Manufacturing Example of Carbonless Copying Paper Color Developer Sheet 1 50 parts by weight of a 10% polyvinyl alcohol (manufactured by Kuraray Co., Ltd., PVA-105, degree of saponification 98.5 mol percent, degree of polymerization 500) aqueous solution was added to 60 parts by weight of added water. To the mixed solution, 12.5 parts by weight of heavy calcium carbonate (Softon #2200 manufactured by Bika Funka Co., Ltd.) was gradually added with stirring and well dispersed, and then powdered pyrophosphoric acid was added to 100 parts by weight of activated clay powder. 87.5 parts by weight of activated clay, which had been dry-mixed with 3 parts by weight of sodium, was gradually added while stirring, and after being well dispersed,
Styrene-butadiene latex (Dow Chemical Co., Ltd.)
After adding 10 parts by weight (solid content) of Dow 670 (styrene, about 60% by weight) and stirring well, the pH was adjusted to 9.5 with 20% caustic soda to prepare a coating solution. Apply this coating liquid to 40g/ m2 of high-quality paper in an amount of 8g/m2.
m 2 (solid content) using a blade coater. Comparative Example 1 After 1.0 parts by weight of sodium pyrophosphate was added to 60 parts by weight of added water and completely dissolved, 100 parts by weight of activated clay was gradually added to a solution of 50 parts by weight of 10% polyvinyl alcohol (PVA105) aqueous solution while stirring. After well-dispersing, 10 parts by weight (fixed amount) of acrylic latex (manufactured by Toyo Ink Co., Ltd., Tocryl S-20, a copolymer of acrylic acid ester and styrene) was added, stirred thoroughly, and the pH was adjusted with 20% caustic soda. 9.5 and used as a coating liquid. 40g/m 2 of this coating liquid
It was coated on high-quality paper using a blade coater at a coating amount of 8 g/m 2 (solid content). Comparative Example 2 1.0 parts by weight of sodium pyrophosphate was added to 60 parts by weight of added water and completely dissolved, and then 100 parts by weight of activated clay was added to a solution of 50 parts by weight of 10% oxidized starch (MS-3800, manufactured by Nippon Shokuhin Co., Ltd.) aqueous solution. 10 parts by weight (solid content) of styrene-butadiene latex Dow 670 was added, stirred well, and the pH was adjusted to 9.5 with 20% caustic soda.
It was made into a coating liquid. This coating solution was applied to 40 g/m 2 of high-quality paper using a blade coater so that the coating amount was 8 g/m 2 (solid content). Test Results The coating liquid and developer sheet thus obtained were tested and measured in the following manner. Γ Coating liquid ●Viscosity Value after 1 minute at 60 rpm using a B-type viscometer (manufactured by Tokyo Keiki Co., Ltd.) using rotor No. 4 (cps: centipoise) For Example 1 and Comparative Examples 1 and 2, Hercules type high shear Viscometer (Nihon Rigaku Kogyo)
1, 2, and 3 show the viscosity curves for the products manufactured by Co., Ltd.). ●Form content The solid content was measured after drying at 110°C for 16 hours. Γ developer sheet ●Smoothness Measured using a Beck smoothness tester manufactured by Kumagai Riki Co., Ltd. The larger the number (seconds), the better the smoothness. ●Smudge (colored stains caused by smudges) A weight of 300 g/cm 2 was applied to rub the sheet against the coloring paper mentioned above, and the reflectance (%) of the stain on this treated color developer sheet was measured using a Nippon Den colorimeter colorimeter. . The higher the value, the less dirt there is. ●Surface strength IPINo using an IGT tester (manufactured by Kumagai Riki Co., Ltd.).
Measured using 4 Ink B Spring. The strength was marked as ○ and ○△. ●Color density: 96Kg/cm including the developer sheet and the coloring paper mentioned above.
The color was developed by passing it through a calendar at a pressure of Color density (%) = Reflectance of colored area/Reflectance of blank area x 100 (1 hour after calendaring) Γ coating liquid
【表】
表１より比較例１、２にくらべ本発明の実施例
１は同固形分でありながら粘度が大きく低下して
おり流動性もよい。また図１，２，３よりあきら
かに比較例１、２は実施例１にくらべ高回転数で
の粘度が高く、又低回転数の場合でも高粘度でゲ
ル化している。
Γ顕色剤シート[Table] From Table 1, compared to Comparative Examples 1 and 2, Example 1 of the present invention had a significantly lower viscosity and good fluidity despite having the same solid content. Furthermore, from FIGS. 1, 2, and 3, it is clear that Comparative Examples 1 and 2 have higher viscosity at high rotational speeds than Example 1, and gelation occurs with high viscosity even at low rotational speeds. Γ developer sheet
【表】
表１、２図１，２，３よりあらかじめ分散剤を
混和した活性白土、炭酸カルシウム、ポリビニル
アルコール、スチレンブタヂエンラテツクスを使
用することにより塗液の粘度、及び顕色剤シート
の平滑性、スマツジ、表面強度に非常に効果を得
ることができる。[Table] Tables 1 and 2 From Figures 1, 2, and 3, the viscosity of the coating liquid and the color developer sheet can be determined by using activated clay, calcium carbonate, polyvinyl alcohol, and styrene-butadiene latex mixed with a dispersant in advance. It can be very effective in improving smoothness, smoothness, and surface strength.
図１，２，３は夫々本発明の実施例１、比較例
１、２における塗液のレオロジー図である。
1, 2, and 3 are rheology diagrams of coating liquids in Example 1 of the present invention and Comparative Examples 1 and 2, respectively.
Claims (1)
プセルを該無色有機化合物を吸着して呈色する吸
着性物質である活性白土とを組合せて成るノーカ
ーボン複写紙用顕色剤シートに於てあらかじめ分
散剤を混和した固体（粉体）の活性白土95乃至75
重量パーセントと炭酸カルシウム５乃至２５重量
パーセントを併用しさらに接着剤としてポリビニ
ルアルコールとスチレンブタジエンラテツクスを
含む塗液を塗抹してなるノーカーボン複写紙用顕
色剤シートの製造方法。 ２ ポリビニルアルコールがケン化度98モルパー
セント以上で重合度700以下である特許請求の範
囲第１項記載のノーカーボン複写紙用顕色剤シー
トの製造方法。 ３ ポリビニルアルコールを活性白土の1.0乃至
10.0重量パーセント、スチレンブタジエンラテツ
クスを活性白土の5.0乃至20.0重量パーセント使
用する特許請求の範囲第１項又は第２項記載のノ
ーカーボン複写紙用顕色剤シートの製造方法。 ４ 塗液の濃度が45％以上である特許請求の範囲
第１項、第２項、第３項のいずれか記載のノーカ
ーボン複写紙用顕色剤シートの製造方法。[Scope of Claims] 1. A color developer sheet for carbonless copying paper, comprising a combination of microcapsules containing an electron-donating colorless organic compound and activated clay, which is an adsorbent substance that adsorbs the colorless organic compound and develops a color. Solid (powder) activated clay 95 to 75 mixed with a dispersant in advance
A method for producing a color developer sheet for carbonless copying paper, which comprises using a combination of 5 to 25 weight percent of calcium carbonate and a coating liquid containing polyvinyl alcohol and styrene-butadiene latex as an adhesive. 2. The method for producing a color developer sheet for carbonless copying paper according to claim 1, wherein the polyvinyl alcohol has a saponification degree of 98 mol percent or more and a polymerization degree of 700 or less. 3 Add polyvinyl alcohol to activated clay from 1.0 to
3. The method for producing a color developer sheet for carbonless copying paper according to claim 1 or 2, wherein styrene-butadiene latex is used in an amount of 5.0 to 20.0 weight percent based on activated clay. 4. The method for producing a color developer sheet for carbonless copying paper according to any one of claims 1, 2, and 3, wherein the coating liquid has a concentration of 45% or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1739780A JPS56113493A (en) | 1980-02-15 | 1980-02-15 | Developer sheet for no-carbon copying paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1739780A JPS56113493A (en) | 1980-02-15 | 1980-02-15 | Developer sheet for no-carbon copying paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56113493A JPS56113493A (en) | 1981-09-07 |
| JPS62799B2 true JPS62799B2 (en) | 1987-01-09 |
Family
ID=11942853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1739780A Granted JPS56113493A (en) | 1980-02-15 | 1980-02-15 | Developer sheet for no-carbon copying paper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56113493A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58153686A (en) * | 1982-03-09 | 1983-09-12 | Mitsubishi Paper Mills Ltd | Color developing sheet for no-carbon copying paper |
| JPS58203091A (en) * | 1982-05-21 | 1983-11-26 | Mitsubishi Paper Mills Ltd | Carbonless copying paper |
| JPS6096487A (en) * | 1983-10-31 | 1985-05-30 | Mitsubishi Paper Mills Ltd | Manufacture of color developing sheet for image recording material |
| JPS60190826A (en) * | 1984-03-10 | 1985-09-28 | Matsumoto Kosan Kk | Manufacture of temperature indicating sheet |
| JPS6149887A (en) * | 1984-08-16 | 1986-03-11 | Kanzaki Paper Mfg Co Ltd | Single-element pressure sensitive recording sheet |
| US4797802A (en) * | 1987-12-03 | 1989-01-10 | Sundstrand Corp. | Multiple phase rectifier with active filter for removing noise in triggering signals and digital phase shift compensator for phase shifting signal passed through |
-
1980
- 1980-02-15 JP JP1739780A patent/JPS56113493A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56113493A (en) | 1981-09-07 |
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