408164 五 發明説明（1) Α7 Β7 丰發明係關於修正液。 握Γ正=絲上之修正手寫、打字、影印、或雷射印刷 : #而。’修正液以液體形式塗於錯誤標記上之紙 表面。况體繼而在表面形成有效地覆蓋錯誤標記之膜，並 且可接受修正之標記。在膜上製造修正標記已知爲..重窝” 〇 修正液—般包括—些標準成份，包括不透明顏料(通常 馬一乳化鈦）、膜形成聚合材料、與溶劑。 不透明顏料分散於流體，並且提供基本白色，其可以其 他义顏料凋色’而提供密切對應塗以流體之紙之顏色的修 正^不透明㈣用以遮蔽其上塗以修正液之錯誤標記。 膜形成聚合材料’亦已知爲黏合劑，將顏料黏合於紙， 並且助於形成撓性但读蜻费y &疋,逑K覆蓋，其一但在溶劑乾燥時仍 保留。 經濟部中央標準局員工消費合作社印製 溶劑用作爲其他成份用之載體^歷史上，_化烴已爲修 正液組合物之所選溶劑。自化烴溶劑表現特別之優點主要 因爲其具有提供快速與完全乾燥之修正液之蒸發速率。此 外’其不影響打字^記而造成不可接受之 '滲色。其亦有效 地溶解膜形成1合4料，其提供持久但是撓性之膜，而不 造成紙表面之過度起縐或變形。即使其用作爲修正液溶劑 之已知優點，函化烴溶劑之使用已變成增加顧慮之事項， 主要因爲其對環境之負面影響（同溫層臭氧消粍）。因此， 藉由排除_化烴蟓劑之使用而提供,，對臭氧無害，，的修正液 變成需要的。對臭氧無害的修正液表示不含移動至同溫 ---------- 4 _ 本紙張尺度通用中國國家標準（CNS ) Μϋγ 2 1 〇 χ 297公董； 408164 五、發明説明（2 A7 B7 經濟部中央橾隼局員工消費合作社印製 疋材料’或疋如果含此材料，此材料不造成臭氧濃度降低 之修正液。 已今試以非自化烴替代品取代自化烴溶劑。如美國專利 5’。32,599所述之水系系統對於廣泛種類之墨水成份無效。 或者’如美國專利1，199,976與5,306,755所述之非鹵化烴 溶劑，覆蓋廣泛範園之墨水型式，但是遭受不良之重寫特 性。 本發明之目的爲具有改良的重寫特性之基於非函化烴溶 劑系統的修正液α 一般而έ ’本發明係關於具有改良的重寫特性之對臭氧 典害的修正液°對臭氧無害的修正液因此具有伴隨自化烴 溶劑基礎修正液之主要益處（良好重寫特性），亦具有伴隨 自化烴溶劑基礎修正液之環境益處。 特別地，本發明係關於包含非鹵化烴溶劑、聚合相與不 透明相之對臭氧無荅的修正液，其中不透明相對聚合相之 比例爲約2.2至約3.8，較佳爲約2 4至約3 6 (基於重量）。 本發明《其他特點與優點由其較佳具體實施例之説明及 由申請專利範圍而明顯。 在此使用之名詞”重寫特性，，係關於接受墨水、簽字筆與 打字機撞擊之形式的新寫物質之修正液膜能力。不受理論 t束缚’申請人相信此特性有關膜強度與紙黏附性^當修 正液膜呈現微弱強度與不良之紙黏附性時，重寫特性非常 不良。其一般在膜上製造新筆寫標記時，生成修正液之溝 孔與結塊。因此，呈現良好”重寫特性"的修正液在正常書 I I I Ί Γ 訂 —.4-(请先閲讀背面之注意事項再填寫本頁) 1 本紙張尺度朝帽·轉（CNsTT^i72l0x騰釐） 經濟部中央標準局員工消費合作社印裝 408X64 A 7 -------ϋ___ 一 五、發明説明（3 ) _ 寫壓力時不呈現過量之結塊或碎片。由於施加之相當高麼 力’墨水筆與打字機重寫之良好重寫特性之重要性非常重 要。簽字筆之良好重窝特性之重要性—般較不重要。 依照本發明，已發現調整非齒化烴溶劑基礎之修正液的 不透明相對聚合相之比例’可得到戲劇性改良的重寫特性 〇 在此使用之名詞"不透明相”指修正液中所發現之不透明： 劑之總量。適用於本發明之不透明劑包括商業可得金紅石 二氧化鈦、銳鈦礦二氧化鈦、硫化鋅、氧化鋅、碳酸岛、 或這些材料之摻.合物或混合物。較佳爲，不透明劑具有約 0.2至約〇.4微米之平均粒度及約14磅油/ 1〇〇磅顏料至每 10 0續約3 6碎之平均吸油性。不透明劑之量非常視所需覆 蓋程度而定（較低之量提供較不良之覆蓋，而較高之量提 供非常不透明之覆蓋）。基於組成物之總重量，自約3 2至 約5 5重量％之不透明劑通常爲適當的。較佳爲，不透明劑 以基於组成物之總重量爲約3 8至約5 2重量％之程度，選自 包括金紅石二氧化鈦與銳鈦礦二氧化鈦之組。 在此使用之名詞"聚合相”指膜形成黏合劑（即樹脂）、塑 化劑、與分散劑。適用於本發明之黏合劑包括熱塑性甲基 丙烯酸丁酯（BMA)共聚物（如緬因州威靈頓之Zeneca樹脂 公司製造之Neocry 1 B 705或Neocry 1 B 700聚合物，或緬 因州馬爾登之Rohm技術公司供應之R〇hagum P 675);乙 烯基甲苯-丁二烯共聚物（如固特異化學公司製造者）；甲 基丙烯酸異丁酯聚合物（IBMP)(賓州費城之R0hm & Haa s -6 - 本紙張尺度適用中國國家標準（CNS ) A4規格（2!0X2SI7公釐） ---------—裝----^---^iT------1— ^ t請先閱讀背而之泣意事項存填寫本頁j 408164 A7 B7 經濟部中央標準局員工消費合作社印製 五、發明説明（4 ) 公司製造之Acryl〇idB67);甲基丙稀酸正丁酯聚合物（如 德拉瓦州威靈頓之杜邦公司製造之Elvacite 2〇44);甲基 丙烯酸正丁酯/甲基丙烯酸異丁醋共聚物（如杜邦公司製造 之ElvaClte 2046)，及其混合物。適當之"塑化劑”包括酞 酸二-十三酯。適當之分散劑包括硫琥珀酸二辛基鈉盥聚 合脂肪醋（美國ICI公司製造之HypermerLpi);及其混合 物。 在此使用 < 適當"非南化烴溶劑，，包括任何環己烷或烷基 化環己烷及含10或更少碳原子之脂族烴。較佳材料爲甲基 環己烷。 、視清形地，本發明之修正液亦可包括其他之典型修正液 成份，如調色著色劑，例如，燈黑、生赭土、黃氧化物等 。這些凋色著色劑在"不透明相"計算記爲不透明劑。少量 之芥子油（0.1-0.2。/。）經常如阻化劑而加入。 依照本發明，比較習知之非画化烴溶劑修正液系統時， 在2 ‘2至3.8之範圍之不透明相對聚合相比例提供優異之重 寫特性。較佳爲，不透明相對聚合相比例爲2 4至3 6。 ‘ 實例 以下之實例1 ·5描述具有依照本發明之不透明相對聚人 相比例之現體，在高濕流體鋪設，例如，5 mils膜厚度， 提供良好之重寫性質。以下之實例6顯示所請範圍外之比 例。使用時，實例6修正液在高濕流體鋪設顯示不良之重 寫性質。 ' 本紙張尺度適用 10Ϊϋ^·( CNS ) A4^m ('2Ϊ0Χ 297^¾ (請先閱讀背面之注意事項再填寫本頁) —裝- 訂 408164 A7 B7 五、發明説明（5 ) 實例1 成份_重量％ 1. 甲基環己烷 41.41 2. 熱塑性IBMA共聚物，Neocryl B 705聚合物 10.78 3. 酞酸二-十三酯 3.99 4. 聚合脂肪酉旨，Hypermer LP1(美國ICI公司） 2.22 5. 二氧化妖，Tipure R-93 1 41.39 6. 燈黑 0.07 7. 芬子油 0.12 8. 香料759292/0602 185(Haarmann & Reimer) 〇.〇2 100.00 不透明相對聚合相比例：2.44 經濟部中央標準局員工消費合作社印製 實例2 成份_重量0/〇 1. 甲基環己烷 42.30 2. 熱塑性IBMA共聚物，Neocryl B 705聚合物 9.65 3. 酞酸二-十三酯 、 3.57 4. 聚合脂防醋，Hypermer LP1 (美國ICI公司） 1.98 5. 二氧化鈥，Tipure R-93 1 42.29 6. 燈黑 0,07 7. 芥子油 Ό.12 8. 香料759292/0602185(Haarmann & Reimer) 〇.〇2 100.00 不透明相對聚合相比例：2.78 -8- 本紙張尺度適用中國國家標準（CMS〉A4現格（2丨0X297公釐） --------—裝----^----訂--------戒 (請先閲讀背面之注意事項再填寫本頁) 408164408164 V. Description of the invention (1) Α7 Β7 Feng invention is about correction fluid. Holding Γ 正 = correction handwriting, typing, photocopying, or laser printing on the silk: # 而。 'The correction fluid is applied to the paper surface of the error mark as a liquid. The condition then forms a film on the surface that effectively covers the erroneous marks, and can accept corrected marks. Making correction marks on the film is known as “.. Heavy nests” 〇 Correction liquid generally includes some standard ingredients, including opaque pigments (usually horse-emulsified titanium), film-forming polymeric materials, and solvents. The opaque pigments are dispersed in the fluid, It also provides a basic white color, which can be used for other pigments, and provides a correction that closely corresponds to the color of the fluid-coated paper. It is opaque, which is used to mask the false markings on the paper coated with correction fluid. Adhesive, which glues the pigment to the paper, and helps to form a flexible but long-term coverage of y & 疋, 其 K, one of which remains when the solvent dries. It is used for printing solvents by the Ministry of Economic Affairs' Central Standards Bureau, Consumer Consumption Cooperative As a carrier for other ingredients ^ Historically, hydrogenated hydrocarbons have been the solvent of choice for correction fluid compositions. The self-chemicalized hydrocarbon solvent exhibits particular advantages primarily because it has an evaporation rate that provides a fast and completely dry correction fluid. In addition, ' It does not affect typing and writing and causes unacceptable 'bleeding. It also effectively dissolves the film to form a 1-in-4 material, which provides a durable but flexible film without causing Excessive creping or deformation of the surface. Even with its known advantages as a correction fluid solvent, the use of functional hydrocarbon solvents has become a concern, mainly because of its negative impact on the environment (stratosphere ozone elimination). Therefore, by excluding the use of chemical hydrocarbon liniments, the correction fluid that is harmless to ozone becomes necessary. The correction fluid that is harmless to ozone means that it does not move to the same temperature --------- -4 _ This paper standard is in accordance with the Chinese National Standard (CNS) Μϋγ 2 1 〇χ 297 public directors; 408164 V. Description of the invention (2 A7 B7 Printed by the Consumers' Cooperative of the Central Government Bureau of the Ministry of Economic Affairs, or if it contains this Material, this material does not cause a decrease in the concentration of ozone. A non-chemicalized hydrocarbon substitute has been tried to replace the chemicalized hydrocarbon solvent. The aqueous system described in US Patent 5 '. 32,599 is not effective for a wide variety of ink components. Or 'The non-halogenated hydrocarbon solvents described in U.S. Patent Nos. 1,199,976 and 5,306,755 cover a wide range of ink types, but suffer from poor rewrite characteristics. The object of the present invention is to have improved rewrite characteristics. Correction liquid based on non-functionalized hydrocarbon solvent system α Generally, the present invention relates to a correction solution for ozone that is harmful to ozone with improved rewriting characteristics. Therefore, the correction solution that is not harmful to ozone has a base for accompanying hydrocarbon solvents. The main benefit of the correction fluid (good rewrite characteristics) also has the environmental benefits associated with the self-chemical hydrocarbon solvent base correction fluid. In particular, the present invention relates to ozone-free compounds that contain non-halogenated hydrocarbon solvents, polymeric phases and opaque phases. The ratio of the opaque phase to the polymerized phase is about 2.2 to about 3.8, and preferably about 24 to about 36 (based on weight). The "other features and advantages of the present invention are explained by the description of its preferred embodiments and by The scope of patent application is obvious. The term "rewrite property" used here refers to the ability to correct the liquid film of new writing materials in the form of receiving the impact of ink, pen and typewriter. Without being bound by theory, the applicant believes that this characteristic is related to film strength and paper adhesion ^ When the correction liquid film exhibits weak strength and poor paper adhesion, the rewriting characteristics are very poor. Generally, when a new pen-writing mark is made on the film, grooves and lumps of correction fluid are generated. Therefore, the correction fluid showing good "rewriting characteristics" is in the normal book III Ί Γ order—.4- (Please read the precautions on the back before filling in this page) 1 This paper is facing toward the cap and turning (CNsTT ^ i72l0x 腾(%) Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs 408X64 A 7 ------- ϋ ___ One. Five, invention description (3) _ Do not show excessive clumps or fragments when writing pressure. Is it due to the high application? The importance of good rewrite characteristics of ink pens and typewriter rewriting is very important. The importance of good repetition characteristics of signature pens is generally less important. In accordance with the present invention, corrections to adjust the basis of non-dentified hydrocarbon solvents have been found The ratio of the opacity of the liquid to the polymeric phase 'can give dramatic improved overwrite characteristics. The term "opaque phase" as used herein refers to the total amount of opacity found in the correction liquid: the total amount of agent. Opaque agents suitable for use in the present invention include commercially available rutile titanium dioxide, anatase titanium dioxide, zinc sulfide, zinc oxide, carbonic acid islands, or blends or mixtures of these materials. Preferably, the opaque agent has an average particle size of about 0.2 to about 0.4 micrometers and an average oil absorption of about 14 pounds of oil per 100 pounds of pigment to about 36 crushes per 100. The amount of opaque agent is very much dependent on the degree of coverage required (lower amounts provide poorer coverage and higher amounts provide very opaque coverage). Based on the total weight of the composition, opaque agents from about 32 to about 55 weight percent are generally suitable. Preferably, the opaque agent is selected from the group consisting of rutile titanium dioxide and anatase titanium dioxide to an extent of about 38 to about 52% by weight based on the total weight of the composition. The term " polymeric phase " as used herein refers to film-forming adhesives (i.e. resins), plasticizers, and dispersants. Adhesives suitable for use in the present invention include thermoplastic butyl methacrylate (BMA) copolymers such as Burmese Neocry 1 B 705 or Neocry 1 B 700 polymer manufactured by Zeneca Resin Company, Wellington, IN, or Rohagum P 675 supplied by Rohm Technologies, Inc. of Malden, Maine); vinyl toluene-butadiene copolymerization (Such as Goodyear Chemical Co., Ltd.); isobutyl methacrylate polymer (IBMP) (R0hm & Haa s -6 in Philadelphia, PA-This paper size applies to China National Standard (CNS) A4 specifications (2! 0X2SI7 mm) ---------— install ---- ^ --- ^ iT ------ 1— ^ tPlease read the Weeping Things Behind and fill in this page j 408164 A7 B7 Printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 5. Description of the invention (4) AcrylOidB67 manufactured by the company); n-butyl methyl acrylic polymer (such as manufactured by DuPont of Wellington, Delaware) Elvacite 2044); n-butyl methacrylate / isobutyl methacrylate copolymer (such as ElvaClte 2046 manufactured by DuPont) ), And mixtures thereof. Suitable "plasticizers" include di-tridecyl phthalate. Suitable dispersing agents include sodium dioctyl thiosuccinate toilet fatty vinegar (Hypermer Lpi manufactured by ICI Corporation, USA); and mixtures thereof. ≪ Appropriate " non-salinized hydrocarbon solvents are used herein, including any cyclohexane or alkylated cyclohexane and aliphatic hydrocarbons containing 10 or less carbon atoms. A preferred material is methylcyclohexane. As apparent, the correction fluid of the present invention may also include other typical correction fluid components, such as hueing colorants, for example, lamp black, raw earth, yellow oxide, and the like. These faded colorants are counted as opaque in the "opaque phase" calculation. Small amounts of mustard oil (0.1-0.2%) are often added as inhibitors. According to the present invention, when comparing conventional non-painted hydrocarbon solvent correction fluid systems, opaque relative polymerization ratios in the range of 2'2 to 3.8 provide excellent rewriting characteristics. Preferably, the opaque relative polymerization ratio is 24 to 36. ‘Examples The following examples 1 and 5 describe the present invention with an opaque, relatively human-comparative example according to the present invention, which is laid in a high-humidity fluid, for example, a film thickness of 5 mils, to provide good rewrite properties. Example 6 below shows the ratio outside the requested range. In use, the correction fluid of Example 6 exhibited poor rewriting properties in high-humidity fluid laying. 'This paper size applies to 10Ϊϋ ^ · (CNS) A4 ^ m (' 2Ϊ0Χ 297 ^ ¾ (Please read the precautions on the back before filling out this page) — Binding-Order 408164 A7 B7 V. Description of the invention (5) Example 1 Ingredients _% By weight 1. Methylcyclohexane 41.41 2. Thermoplastic IBMA copolymer, Neocryl B 705 polymer 10.78 3. Di-tridecyl phthalate 3.99 4. Polymeric fat purpose, Hypermer LP1 (American ICI Corporation) 2.22 5 Dioxin, Tipure R-93 1 41.39 6. Light black 0.07 7. Fragrant oil 0.12 8. Fragrance 759292/0602 185 (Haarmann & Reimer) 〇.〇2 100.00 Opaque relative polymerization Comparative example: 2.44 Central Printed by the Bureau of Standards Staff Consumer Cooperative Example 2 Ingredients_Weight 0 / 〇1. Methylcyclohexane 42.30 2. Thermoplastic IBMA copolymer, Neocryl B 705 polymer 9.65 3. Di-tridecyl phthalate, 3.57 4. Polymerization Lipid-proof vinegar, Hypermer LP1 (American ICI) 1.98 5. Dioxide ', Tipure R-93 1 42.29 6. Light black 0,07 7. Mustard oil tincture. 12 8. Spice 759292/0602185 (Haarmann & Reimer) 〇.〇2 100.00 Comparative example of opaque relative polymerization: 2.78 -8- This paper size applies Chinese national standards CMS> A4 is now (2 丨 0X297 mm) ------------ install ---- ^ ---- order -------- (Fill in this page) 408164
經濟部中央標準局員工消費合作杜印製 成份 重量％ 1.甲基環己烷 40.17 2.熱塑性IBMA共聚物，Neocryl B 705聚合物 9.16 3.酞酸二-十三酯 3.39 4.聚合脂肪醋，Hypermer LP1(美國ICI公司） 1.88 5,二氧化鈦，Tipure R-93 1 45.19 6.燈黑 0.08 7.芥子油 . 0.11 8.香料759292/0602185(Haarmann & Reimer) 0.02 不透明相對聚合相比例：3.13 100.00 實例4 成份 重量％ 1.曱基環己烷 39.69 2.熱塑性IBMA共聚物，Neocryl B 705聚合物 8.52 3. g太酸二-十三醋 、 3.15 4,聚合脂肪醋，Hypermer LP1(美國ICI公司） 1.75 5.二氧化欽，Tipure R-931 46.68 6.燈黑 0.08 7.芥子油 0.11 8.香料759292/0602185(Haarmann & Reimer) 0.02 不透明相對聚合相比例：3.48 100.00 -9- 本紙張尺度適用中國國家標準（CNS ) A4規格（2Ϊ0Χ 297公釐） I---------裝---1----訂-------威 (請先¾讀背面之注意事項再填寫本頁) A7 經濟部中央標準局員工消費合作杜印製 408164 __B7 五、發明説明（7 ) 成份 重量％ 1.甲基環己烷 46,21 2.乙烯基曱苯-丁二烯共聚物（固特異化學公司） 9.68 3.酞酸二-十三酯 2.64 4.聚合脂肪醋，Hypermer LP1(美國ICI公司） 1.65 5.二氧化鈦，Tipure R-93 1 39.60 6.燈黑 0.07 7.芥子油 . 0.13 8,香料759292/0602I85(Haarmann & Reimer) 0.02 100.00 不透明相對聚合相比例：2.83 實例6 成份 重量％ 1.甲基環己烷 48.91 2.乙晞基甲苯-丁二烯共聚物（固特異化學公司） 8.53 3.硫號拍酸二辛基納、 - 1.56 4.二氧化飲，Tipure R-931 40.79 5.燈黑 0.07 6.芥子;治 0.14 100.00 不透明相對聚合相比例：4.04 -10- --------‘裝----^----訂-----II ^ (請先閲讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家榇隼（CNS ) Αί(規格（210X 297公釐） 408164 A7 B7 五、發明説明（8 含以上成份之修正液藉由首先將黏合劑溶解於溶劑系統 而製備。其次，加入分散劑、塑化劑與不透明劑，而且混 合物在加入燈黑與芥子油後於粒磨機分散3小時，而得最 終之流體组合物。 其他具體實施例在申請專利範圍之内。例如，除了最佳 成份，組合物亦可包括熟悉此技藝者已知之各種添加物。 加入這些添加物以改良指定之性質。其包括控制膜成長之 平坦劑、控制書寫、調平與沈降之流動添加物與増稠劑、 及降低成本之顏料補充劑。 ' II * 裝 ： 訂 _ 1 I ^ -* (婧先閲讀背面之注意事項具填寫本育) 經濟部4-央標率局員工消費合作社印製 -11 本紙張尺度適用中國國家標率（CNS ) A4規格（210X 297公釐）The consumption cooperation of employees of the Central Bureau of Standards of the Ministry of Economic Affairs is based on the weight percent of Du Yin. 1. Methylcyclohexane 40.17 2. Thermoplastic IBMA copolymer, Neocryl B 705 polymer 9.16 3. Di-tridecyl phthalate 3.39 4. Polymerized fatty vinegar , Hypermer LP1 (American ICI Company) 1.88 5, Titanium Dioxide, Tipure R-93 1 45.19 6. Lamp Black 0.08 7. Mustard Oil. 0.11 8. Spice 759292/0602185 (Haarmann & Reimer) 0.02 Opaque Relative Polymerization Comparative Example: 3.13 100.00 Example 4 Ingredient weight% 1. Benzylcyclohexane 39.69 2. Thermoplastic IBMA copolymer, Neocryl B 705 polymer 8.52 3. g diacid ditridecyl acetate, 3.15 4, polymeric fatty vinegar, Hypermer LP1 (US ICI Company) 1.75 5. Chlorine Dioxide, Tipure R-931 46.68 6. Lamp Black 0.08 7. Mustard Oil 0.11 8. Spice 759292/0602185 (Haarmann & Reimer) 0.02 Opaque Relative Polymerization Comparative Example: 3.48 100.00 -9- This paper Dimensions are applicable to Chinese National Standard (CNS) A4 specifications (2Ϊ0 × 297 mm) I --------- install --- 1 ---- order ------- wei (please read the back first (Please note this page before filling out this page) A7 Consumption Cooperation of Employees of the Central Bureau of Standards, Ministry of Economic Affairs 40 8164 __B7 V. Description of the invention (7) Ingredients by weight% 1. Methylcyclohexane 46, 21 2. Vinyl toluene-butadiene copolymer (Goodyear Chemical Co.) 9.68 3. Di-tridecyl phthalate 2.64 4. Polymeric fatty vinegar, Hypermer LP1 (American ICI) 1.65 5. Titanium dioxide, Tipure R-93 1 39.60 6. Light black 0.07 7. Mustard oil. 0.13 8, Spice 759292 / 0602I85 (Haarmann & Reimer) 0.02 100.00 Opaque relative polymerization comparative example: 2.83 Example 6 Ingredient weight% 1. Methylcyclohexane 48.91 2. Ethyl toluene-butadiene copolymer (Goodyear Chemical Co.) 8.53 3. Sulfuric acid dioctyl sodium, -1.56 4. Dioxide drink, Tipure R-931 40.79 5. Lamp black 0.07 6. Mustard; cure 0.14 100.00 Opaque relative polymerization Comparative example: 4.04 -10- -------- '装 ---- ^ ---- Order ----- II ^ (Please read the notes on the back before filling this page) This paper size is applicable to China National Standard (CNS) Αί (specification (210X 297 mm) 408164 A7 B7 V. DESCRIPTION OF THE INVENTION (8) A correction fluid containing the above ingredients is prepared by first dissolving an adhesive in a solvent system. Secondly, a dispersant, a plasticizer and an opaque agent are added, and the mixture is dispersed in a pellet mill for 3 hours after adding lamp black and mustard oil to obtain a final fluid composition. Other specific embodiments are within the scope of patent application. For example, in addition to the best ingredients, the composition may include various additives known to those skilled in the art. These additives are added to improve the specified properties. It includes leveling agents that control film growth, flow additives and thickeners that control writing, leveling and sinking, and pigment supplements that reduce costs. 'II * Packing: Order _ 1 I ^-* (Jing first read the notes on the back to fill in this education) Printed by the Ministry of Economic Affairs 4-Central Standards Bureau Employee Consumption Cooperatives -11 This paper size applies to China National Standards (CNS ) A4 size (210X 297mm)