*i〇l286 A6 B6 五、發明説明（1) 本發明乃關於描圖紙之製造方法，尤指一種在塑膠膜 片上塗佈一層具書寫性之半透明塗覆物而形成之工程或美 工用描圖紙之製造方法。 査一般描圖紙最常用的製作方法是在透明性基材上採噴沙 孀 法及塗佈法製成。塗佈法成本雖較高，然而品質較優異， 故目前國內市售品描圖紙多採用塗佈法製成，因國內尙無 廠商製造，市售品皆爲進口貨，償格非常昂貴。我們期盼 由塑膠膜到描圖紙，皆能由國內廠商自己製作，對國家、 社會來說當是一大福音。發明人等所服務之公司桃園廠專 門生產聚酯膜，而在技術部硏發製作其相關產品，描圖紙 卽爲其中之一。本發明是由發明人等自行開發硏究而成功 之新穎描圖紙之製造方法，塗覆物係在聚酯等透明塑膠膜 表面上塗佈以特定配合之塗覆物而形成者。 經濟部中央搮準局印裂 {請先聞讀背面之注意事項再填寫本頁) 本發明製作描圖紙之基材爲塑膠膜，所用之塗覆物係 利用特定配方，以適當程序加料及流程分散而成。塗覆物 組合成份所包含的溶劑系統是做爲其載體，在常溫下爲液 體，又分爲溶劑及非溶劑。以熱塑性樹脂作爲黏合劑，必 須溶解於該溶劑系統中。界面活性劑及非溶劑皆可幫助潤 濕無機顏料，降低其界面活化性能，使無機顏料更容易分 散於塗覆物中。 製作描圖紙塗覆物之最簡單方法及其應有之觀念，在 實施例中將予描述。在較佳之實施例中，述及更嚴格製作 流程及溶劑系統之變化髟響。丁酮與環己酮雖爲本系列黏 甲 4 (210X297 公沒） ^01286 A6 B6 經 濟 部 中 央 橾 準 印 裝 五、發8月説明（ 2 ) 合 劑 之良 好溶 劑 9 但 兩 者 物 性 相 差 甚 多 〇 丁 萌在 室 溫 下 之 黏 度 爲 0.497 cps， 而 環 己 _在 17.3 °c 之 黏 度 爲 2. 30 cps 9 然 而 在 39.1-C 時 之 黏 度 爲 20.3 cps ， 變 化 甚大 0 丁 酮 沸 點 79.6〇C » 揮發 速 率 爲 465 C 溶 劑 相 對 的 揮 發 速 率 以 醋 酸 乙 酯 爲 100 )， 環 己 酬 沸 點 156 7 °C 9 揮 發 速率 爲 25 〇 甲 苯 沸 點 111. 0 °C ，揮發速率： 爲 195 〇 因 此 塗 覆 物 用 溶 劑 之 選 擇 9 必 須考 慮其 溶 解 力 外 f 尙 須 顧 及 溶 劑 的 揮 發 性 0 因 溶 劑 的 揮 發速 率會 影 響 塗 覆 物 之 乾 燥 性 及 刷 塗 性 等 0 又 /flif 論 是 高 純 度甲 苯或 者 工 業 用 甲 苯 9 其 揮 發 速率 幾 乎 沒 有 什 麽 差 異 〇 若祇 是用 爲 稀 釋 劑 9 X 業 用 甲 苯 17ft? 應 視 爲 良 好 原 料 〇 塗覆 物含 固 形 份 20 60 重 且 里 百 分 率 9 若小於 20 重 量 百 分 率 ，塗 膜可 能 太 薄 i 若 大 於 60 重 量 百 分 率 9 塗 覆 物 可 能 黏 度 太高 ，或 者 塗 佈 器 之 轉 寫 率 可 能 不 足 9 以 致 不 易 施 行 塗 佈 作業 。無 地 機 顔 料 在 固 形 份 中 佔 30 60 重 量 百 分. 率 9 若 小 於 30重 量百 分率 9 塗 膜 書 寫 性 變 差 9 若大 於 60 重 量 百 分 率 9 塗膜 不易 黏 著 在 塑 膠 膜 上 9 易 產 生 掉 粉 現 象 0 至 於 — 種 合 宜之 溶劑 系 統 9 主 要 係 顧 及 其 對 黏 合 劑 之 溶 解 力 及 其 揮 發 性。 本一 系 列 試 驗 所 用 黏 合 劑 之 溶 解 度 參 數 與 脂 肪 族 溶 劑 者相 近， 所 以 脂 肪 族 溶 劑 可 佔 50 80 重 量 百 分 率 9 小 於 50 重量 百分率 9 黏 合 劑 不 易 溶 解 r±^ 兀 全 f 塗 覆 物 不 穩 定 9 黏 合 劑易 沈析分 離 出 來 〇 芳 香 族 溶 劑 可佔 20 50 重 量 百 分 率 9 若小於20 重 里 百分 率 9 4DJ： m 機 顔 料不 易 被 潤 濕 9 若大 於 50 重 量百 分率 9 卽 爲 上 述 fift 肪 族 溶 劑 小 於 50 重 •f立 里 分 率 之 甲 4(210X 297 公发） 3 201286 經濟部中央標準局印製 五、發明説明（3 ) 結果。黏合劑佔固形份4〇〜70重量百分率，小於40重量百 分率，塗膜乾燥後，易於脫落，大於70重量百分率，塗膜 書寫性變差，且提高成本。所用黏合劑其中乙烯基共聚物 及苯氧基樹脂，兩者溶液較易潤濕無機顔料，且能適度提 高塗膜表面硬度。而聚胺基甲酸酯主要目的是提供最強的 黏著力。乙烯基共聚物佔10〜50重量百分率，小於10重量 百分率造成塗覆物分散不佳，大於50重量百分率，塗膜易 脫落。苯氧基樹脂佔5〜25重量百分率，若小於5董量百 分率，塗膜硬度變低，若大於25重量百分率，塗湲物黏度 太高，不易塗佈。聚胺基甲酸酯佔40〜80簠量百分率，若 小於40重量百分率，塗膜不易牢固，若大於80重量百分率 ，不但影響塗覆物之分散狀況而且使塗膜硬度變低。 茲將本發明就下列代表性實施例（所用份數以重量計 )說明如下： 但在此先要聲明此等實施例並非限制本發明之基本構 成，例如，芳香族溶劑可用苯、甲苯、二甲苯或氯苯、酚 、甲酚等，而脂肪族溶劑可用丙_、丁酮、環戊酮、環己 酮、2 -甲基戊酮-〔4〕或其它高級酮或二甲基甲醯胺（ DMF )、四氢呋喃（THF)等。 實施例一： 取 25 份乙烯基共聚物（Vinyl Chloride/Vinyl Acetate Copolymer，可作黏合劑用），加入37.5份甲苯及37.5份丁 酮，予以攪禅混合，俟其完全溶解後，卽爲Α溶液。將25份聚 (請先閑讀背面之注意事項再填寫本页) •裝· ,打· •線· 甲 4(210X297公超） ^01286 A6 B6 五、發明説明（4 ) 胺基甲酸酷（Polyurethane，可作黏合劑用），加入50份 丁酮及25份環己酬，予以攪掸混合，俟其完全溶解後，卽 爲B溶液。 取30份A溶液及36份B溶液及19份丁酮，充份攪拌混 合，再緩慢加入10份矽石粉（顆粒大小〇·〇1〜4.0 //)及5 份碳酸鈣（顆粒大小〇.〇1〜4.0 //)，攪拌均勻再加以分散 2小時，較粗粉末係提供良好書寫性，較細粉末係幫助良 好筆跡消去性，兩者同時影響表面之粗度及摩擦係數。計 算出塗湲物中固形份佔31· 5%，無機顔料構成15 %之固形 份。把塗覆物塗佈在塑膠膜上，烘乾後卽成描圖紙。可用 原子筆、針筆、鋼筆、鉛筆在描圖紙上書寫。但如果描圖 紙要用鉛筆書寫且重覆擦拭使用，遂有下列實施例更優異 之塗覆物製法。 實施例二： 經濟部中央標準局印製 {請先聞讀背面之注意事項再蜞寫本頁) 取31.3份丁酮及6.9份瑷己酮及20.7份甲苯，充份混 合10分鐘，攪掸加入11。8份苯氧基樹脂（PHENOXY RESINS ，可作爲黏合劑用）及19.2份乙烯基共聚物，攪掸硏磨溶 解，卽成爲A溶液。取15份甲苯，37.5份丁酮及17.5份環 己_，充份混合10分鐘後，攪掸加入30份聚胺基甲酸酯， 攪拌硏磨4小時，做成B溶液。以上各溶劑的百分比，並 非不可改變，是看設備及操作條件而定。不可疏忽的是高 沸點的溶劑如璦己酮，不宜加太多，因若其不能從塗膜中 揮發而殘存時，易產生塗膜的粉化，塗膜的附著性、耐久 甲 4(210X 297公藶） 一 5 — ^01288 A6 B6 五、發明説明（5 ) 性、硬度等皆會變差。雖然如此，亦不宜完全捨棄不用環 己酬，而只用丁酮，其揮發速率高，在乾燥階段易使塗膜 表面產生針孔或渦漩狀細胞。 取35份A溶液，加入6份白土（顆粒大小0. 1〜4 · 0 Λ )，均勻攪掸，分散2小時後，再加入52份B溶液，攪 掸分散均勻後，再緩慢加入6份矽石粉（與實施例一同） ，再分散2小時，卽成塗覆物主劑。取8〇〜95份塗覆物主 劑與5〜20份硬化劑（含異氰酸基，固形量50%重量百分 率）。以上主劑、硬化劑之重量百分率，主要視主劑所含 羥基量而定。攪拌均匀半小時後，將其塗佈在塑膠膜上， 進烘箱區乾燥，卽成描圖紙。可用的無機顔料尙有矽酸鈣 、二氧化鈦、硫酸鋇、碳酸鎂、氧化鋅等。若塗覆物要分 散得更好，或者無機顏料較不易分散者，可加入界面活性 劑，例如胺類界面活性劑。界面活性劑不宜加太多..，否則 會使塗膜對塑膠膜接著力降低。其加入量應視分散易程 度及其品質而決定，對無機顏料佔0 · 1〜10 %分散時間亦 非定規2小時，視設備、流程及原料而定。有一判定方法 可供參考，是用光學顯微鏡觀察其塗覆物，直到顆粒分散 均勻，且不再有大顆粒存在，卽爲完成分散程序。 (請先閱讀背面之注意事項再填"本頁) •訂· •線· 經濟部中央橾準局印裝 肀 4 (210X297公爱) ί.ι —* i〇l286 A6 B6 V. Description of the invention (1) The present invention relates to the manufacturing method of tracing paper, especially a kind of engineering or art use formed by coating a layer of writing translucent coating on a plastic film Manufacturing method of tracing paper. The most commonly used method for checking general tracing paper is made by sandblasting and coating on transparent substrates. Although the cost of coating method is high, but the quality is excellent, so the tracing paper of domestic commercial products is mostly made by coating method. Because domestic manufacturers do not manufacture them, the commercial products are all imported goods, which are very expensive. We hope that everything from plastic film to tracing paper can be made by domestic manufacturers, which is a great boon for the country and society. The Taoyuan Plant, a company served by the inventors and others, specializes in the production of polyester film, and its related products are produced in the Technical Department. Tracing paper is one of them. The present invention is a novel tracing paper manufacturing method developed and inventoried by the inventors themselves. The coating is formed by coating a coating material with a specific compound on the surface of a transparent plastic film such as polyester. Printed by the Central Bureau of Economic Affairs of the Ministry of Economic Affairs (please read the precautions on the back and then fill out this page) The base material for the tracing paper produced by the present invention is a plastic film, and the coating used is a specific formula, and the appropriate procedures for feeding and processes Scattered. Coatings The solvent system contained in the combination of components is used as a carrier, which is a liquid at normal temperature, and is divided into solvents and non-solvents. Thermoplastic resin as the binder must be dissolved in the solvent system. Both surfactants and non-solvents can help moisturize inorganic pigments, reduce their interface activation properties, and make inorganic pigments more easily dispersed in coatings. The simplest method of making a tracing paper coating and its proper concept will be described in the examples. In the preferred embodiment, more stringent manufacturing processes and changes in the solvent system are described. Butanone and cyclohexanone are sticky nails of this series 4 (210X297 public) ^ 01286 A6 B6 Central Ministry of Economic Affairs Printed in Fifth, issued in August (2) Good solvent for the mixture9, but the physical properties of the two are very different 〇Dingmeng ’s viscosity at room temperature is 0.497 cps, while the viscosity of cyclohexane_ at 17.3 ° c is 2. 30 cps 9 However, the viscosity at 39.1-C is 20.3 cps, the change is very big 0 Butanone boiling point 79.6〇C »The volatilization rate is 465 C. The relative volatilization rate of the solvent is ethyl acetate (100). The boiling point of cyclohexanone is 156 7 ° C. 9 The volatilization rate is 25. The toluene boiling point is 111.0 ° C. The volatilization rate: 195. Therefore, the coating The choice of material solvent 9 must consider its dissolving power. It must take into account the volatility of the solvent. Because the evaporation rate of the solvent will affect the drying and brushing properties of the coating. 0 / flif is high-purity toluene or industrial With toluene 9, there is almost no difference in the evaporation rate. Thinner 9 X Industrial toluene 17ft? Should be regarded as a good raw material. The coating contains 20 to 60% solids and a percentage of 9%. If it is less than 20% by weight, the coating film may be too thin i if it is greater than 60% by weight. 9 The coating may be The viscosity is too high, or the transfer rate of the applicator may be less than 9 so that it is not easy to perform the coating operation. The groundless pigments account for 30 60 weight percent of the solid content. Rate 9 If less than 30 weight percent 9 The paintability of the coating film deteriorates 9 If it is greater than 60 weight percent 9 The coating film is not easy to stick to the plastic film 9 Easy to produce dusting phenomenon 0 As for-a suitable solvent system 9 mainly considers its solubility to adhesives and its volatility. The solubility parameters of the adhesives used in this series of tests are similar to those of aliphatic solvents, so aliphatic solvents can account for 50 80% by weight 9 less than 50% by weight 9 Adhesives are not easy to dissolve r ± ^ Wu Quan f coating is unstable 9 Adhesion The agent is easily precipitated and separated. Aromatic solvents can account for 20 50 weight percent 9 if less than 20 weight percent 9 4DJ: m machine pigments are not easy to be wetted 9 if greater than 50 weight percent 9 are above 50% of the above-mentioned fifty aliphatic solvent • F Lili score A 4 (210X 297 public issue) 3 201286 Printed by the Central Bureau of Standards of the Ministry of Economy V. Description of invention (3) Result. The binder accounts for 40 to 70% by weight of the solid content, and is less than 40% by weight. After the coating film is dried, it is easy to fall off. If it is more than 70% by weight, the writing property of the coating film becomes poor, and the cost is increased. The adhesives used are vinyl copolymers and phenoxy resins. The two solutions are easier to wet the inorganic pigments and can moderately increase the surface hardness of the coating film. The main purpose of polyurethane is to provide the strongest adhesion. The vinyl copolymer accounts for 10 to 50% by weight, and less than 10% by weight causes poor dispersion of the coating, and more than 50% by weight, the coating film is likely to come off. The phenoxy resin accounts for 5 to 25% by weight. If it is less than 5% by weight, the hardness of the coating film becomes low. If it exceeds 25% by weight, the viscosity of the coating is too high to be easily applied. Polyurethane accounts for 40 ~ 80% by weight. If it is less than 40% by weight, the coating film is not easy to be strong. If it is more than 80% by weight, it not only affects the dispersion of the coating but also reduces the hardness of the coating film. The following representative examples (parts used by weight) of the present invention are described as follows: However, it should be stated here that these examples do not limit the basic composition of the present invention. For example, aromatic solvents may use benzene, toluene, and Toluene or chlorobenzene, phenol, cresol, etc., and the aliphatic solvent can be propyl, butanone, cyclopentanone, cyclohexanone, 2-methylpentanone- [4] or other higher ketones or dimethylformamide Amine (DMF), tetrahydrofuran (THF), etc. Example 1: Take 25 parts of vinyl copolymer (Vinyl Chloride / Vinyl Acetate Copolymer, which can be used as a binder), add 37.5 parts of toluene and 37.5 parts of methyl ethyl ketone, mix by stirring, and when it is completely dissolved, it will be A Solution. Bring 25 copies together (please read the precautions on the back before filling in this page) • Install ·, hit · • Line · A 4 (210X297 Super) ^ 01286 A6 B6 V. Description of the invention (4) Amino acid cool ( Polyurethane, which can be used as a binder), add 50 parts of methyl ethyl ketone and 25 parts of cyclohexanone, stir and mix it, and when it is completely dissolved, it will be B solution. Take 30 parts of solution A and 36 parts of solution B and 19 parts of methyl ethyl ketone, stirring and mixing, then slowly add 10 parts of silica powder (particle size 〇 · 〇1 ~ 4.0 //) and 5 parts of calcium carbonate (particle size 〇. 〇1 ~ 4.0 //), stir evenly and then disperse for 2 hours. The coarser powders provide good writing performance, and the finer powders help to eliminate the handwriting. Both affect the surface roughness and friction coefficient. It is calculated that the solid content in the coating is 31.5%, and the inorganic pigment constitutes 15% of the solid content. The coating is coated on the plastic film, dried and then tracing paper. You can use ball pen, stylus, pen, pencil to write on tracing paper. However, if the tracing paper is to be written with a pencil and wiped repeatedly, then there are more excellent methods for producing coatings in the following examples. Example 2: Printed by the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before writing this page) Take 31.3 parts of methyl ethyl ketone and 6.9 parts of hexanone and 20.7 parts of toluene, mix thoroughly for 10 minutes, stir Add 11.8 parts of phenoxy resin (PHENOXY RESINS, which can be used as a binder) and 19.2 parts of vinyl copolymer, stir and grind to dissolve, and then become A solution. Take 15 parts of toluene, 37.5 parts of methyl ethyl ketone, and 17.5 parts of cyclohexane, and mix them in full for 10 minutes. After stirring, add 30 parts of polyurethane, stir and grind for 4 hours to make solution B. The percentage of each of the above solvents is not unchangeable, it depends on the equipment and operating conditions. It should not be neglected that high-boiling solvents such as hexanone should not be added too much, because if it cannot be evaporated from the coating film and remains, it will easily produce powdering of the coating film, and the adhesion and durability of the coating film 4 (210X 297 Gong Li) One 5 — ^ 01288 A6 B6 V. Description of the invention (5) The properties and hardness will become worse. Nevertheless, it is not advisable to completely abandon the use of cyclohexanone, but only methyl ethyl ketone, which has a high volatilization rate, and it is easy to cause pinholes or vortex cells on the surface of the coating film during the drying stage. Take 35 parts of A solution, add 6 parts of clay (particle size 0. 1 ~ 4 · 0 Λ), evenly stir, after 2 hours of dispersion, then add 52 parts of B solution, after stirring evenly dispersed, then slowly add 6 parts The silica powder (along with the examples) was dispersed for another 2 hours to form the main agent of the coating. Take 80 ~ 95 parts of coating main agent and 5 ~ 20 parts of hardener (containing isocyanate group, solid content 50% by weight). The weight percentages of the above main agent and hardener mainly depend on the amount of hydroxyl groups contained in the main agent. After stirring for half an hour, coat it on the plastic film, dry it in the oven area, and form a tracing paper. The available inorganic pigments include calcium silicate, titanium dioxide, barium sulfate, magnesium carbonate, zinc oxide, etc. If the coating is to be dispersed better, or inorganic pigments are not easily dispersed, surfactants, such as amine surfactants, can be added. The surfactant should not be added too much. Otherwise, the adhesion of the coating film to the plastic film will be reduced. The amount of its addition should be determined according to the ease of dispersion and its quality. For inorganic pigments, which account for 0.1-1 to 10%, the dispersion time is also not regular for 2 hours, depending on the equipment, process and raw materials. There is a judgment method for reference, which is to observe the coating with an optical microscope until the particles are evenly dispersed, and there are no longer large particles, so as to complete the dispersion process. (Please read the precautions on the back and then fill in the " page.)