200904922 九、發明說明： 【發明所屬之技術領域】 本發明係-種製作水性塗料的方法，尤其是一種能將 油性石肖化纖維素水性化，再與丙稀酸系的水性樹脂混合形 成塗料，以使其具有抗回黏效果的方法。 【先前技術】 一般紙張或紙盒，如包裝禮盒、鞋盒等，由於其表面 白會印刷有圖t、文字等，因此通常會在表面塗佈一層塗 料’以保護紙張或紙盒的表面，並且增加亮度以及質感。 遠塗料係以上光程序、壓光程序或紫外光（uv)照射程 序來將塗料塗佈於紙張或紙盒的表面，其皆係先利用滾輪 將：塗佈在紙張或紙盒表面，以形成一層塗膜，可再經過 熱=加熱（上光程序）、已加熱之鐵板輸送帶（壓光程序）， 或是以溫度較高且熱源穩定之uv燈管照射（uv照射程序）， 使土膜固著於紙張或紙^表面，乾燥後的塗膜能夠提 張或紙盒的表面亮度。 间v 、 、< "1/分，丨土兴〉Φ性）、透 漆以及水溶性樹脂n其中該水溶性塗料係以水作 d (稀釋劑），故不具有毒性，因此既環保，成本又低y 且不可燃也不助燃’因此可安全地運送紙張或紙盒，_目: 是廣被利用的塗料；'然而，以紙盒為㈣，這種塗 ： 的塗膜具有熱可塑性，所以在受壓、高溫或座 ：成 下會產生回黏（aftertack)，通常是發峰/又门裱境 或儲存的時候，由於紙盒的相互堆疊會產生 ”中 7，而且不 5 200904922 因此回黏的情形 易控制運送以及健存環境的溫度與澄度 時常發生。 所謂的「回黏 又Μι* 」又稱再黏化現象’是在塗膜乾燥後， 再發生黏化而呈現未乾焊妝能 钇岛狀l。而產生回黏的後果就是塗 ::再黏附於周側的紙盒表面’―但乾燥，就會使複數個 :黏者在一《，若施力將其分開，則紙盒的表面就會隨 者塗膜-起與紙盒分開，而造成紙盒的撕裂、毁損。 該水性塗料在三十年前就已經開始發展，但是目前使 用單-水性塗料仍會有回黏的問題，而無法解決。 另外一種塗料則是油性塗料，該油性塗料在任何環境 下都不會產生如上所述的回黏問題1而，目前所用的油 性塗料係利用揮發性物質當溶劑（如甲苯），因此有相當的 毒性，對於進行塗料加卫之操作員的健康毫無保障，而對 於接觸該具有油性 '參腹夕祕各认，^ 、另湖旺1膘之紙i的人也可能會有傷害，所以 該油性塗料更不能使用在與食品有關的產品上。 【發明内容】 本發明人有鑑於目前的水性塗料會有回黏的問題，而 油性塗料又具有毒性，因此經過不斷的研究以及努力不懈 的試驗之後，終於發明出此製作抗回黏之水性塗料的方 法0 本發明之目的係在於提供一種能將油性硝化纖維素水 性化，再與丙烯酸系的水性樹脂混合成為塗料，以使其具 有抗回黏效果的方法。 為達上述目的，本發明製作抗回黏之水性塗料的方 200904922 法，其係包括以下步驟： 將 30 wt%至 40 wt%的硝化纖維素（nitrocellulose) 溶解於 60 wt%至 70 wt%的乙酸丁酯（n-butyl acetate)中， 以形成硝化纖維素溶液；將該硝化纖維素溶液與尿素曱醛 樹脂（urea-formaldehyde, UF)及水混合，以形成第一混 合溶液’並以65〜9(TC的溫度將該第一混合溶液隔水加熱 2至3小時，使該第一混合溶液分為上、下層，下層為沉 殿的粉體’而上層則為液體； 之後，移除上層液，並於下層的粉體中加入體積至少 為粉體兩倍以上的乙二醇丁醚（ethylene glyc〇1 monobutyl ether)，以形成第二混合溶液； 再於該第二混合溶液中加入非離子型界面活性劑，以 形成第三混合溶液； 最後將3 wt%至15 wt%的第三混合溶液加入一水溶性 塗料中’即可得到抗回黏的水性塗料。 較佳的是，第一溶液中的硝化纖維素溶液、尿素甲醛 树月曰及水的混合體積比例為約1 : 1 : 2。 較佳的是，第一溶液中的水是利用無礦物質的蒸餾 水。 較佳的是’將第一混合溶液隔水加熱的溫度為8 0。(：。 較佳的是’加入下層粉體中之乙二醇丁醚的體積為粉 體的2〜3倍。 較佳的是，加入第二混合溶液中的非離子型界面活性 J為整體第三溶液的20 wt%。 7 200904922 車义佳的i ’該水溶性塗料為丙烯酸系的樹脂(即壓克 L肖化纖料係作為油性塗料的基材，但使用本 X，曰方法將其水性化後，添加至水溶性塗料中，即可讓 所仔到的水性塗料具有抗回黏的效果，塗佈於紙張或紙盒 之後’旎夠讓其方便運送，而不會損㉟，而且本發明之方 去中無需使用到笨環類的有毒揮發溶劑，因此無論是塗料 加工的操作員或是使用者都無需擔心，而且能夠放心地使 用在食品包裝方面。 【實施方式】 請參看第一圖所示，本發明製作抗回黏之水性塗料的 方法，其係包括以下步驟： 硝化纖維素溶液製備步驟（1):將3〇 wt%至4〇 的 硝化纖維素（nitrocellul〇se)在室溫中溶解於6〇 ^%至 wt%的乙酸丁酯（n_butyl acetate)中以形成硝化纖維素 液； ' ' 第一混合溶液製備步驟（2):將該硝化纖維素溶液、 尿素甲醛樹脂（urea-formaldehyde, UF)及蒸餾水以丨：】. 2的體積比例混合，以形成第一混合溶液，並以65〜9〇它 的溫度將該第一混合溶液隔水加熱2至3小時，而較佳的 加熱溫度為80°C，使該第一混合溶液分為上、下層，下層 為沉澱的粉體，而上層則為液體； 第二混合溶液製備步驟（3):移除第一溶液中的上層 液’並將下層的粉體瀝乾，之後在粉體中加入體積至少為 200904922 粉體兩至三倍的乙二醇丁醚（ethylene giycol m〇n〇butyl ether)，以形成第二混合溶液，以使得在硝化纖維素中導 入親水性的官能基； 第三混合溶液製備步驟（4):再於該第二混合溶液中 加入非離子型界面活性劑’以形成第三混合溶液，其中該 非離子型界面活性劑為整體第三溶液的2〇 wt%，其中該非 離子型界面活性劑係包括低泡界面活性劑，如氧乙稀—氧 丙烯共聚合物（E〇/P〇 cop〇iymer)等、增黏劑（c〇c〇amide DEA)、珠光劑（EGDS)a其其他於本領域具有通常知識者所 能知悉的非離子型界面活性劑； 產物製備步驟（5):最後將3 wt%至15 wt%的第三混 合溶液加入一丙烯酸系的樹脂塗料中，即可得到抗回黏的 水性塗料。 實施例·· 以下實施例係提供於本領域具有通常知識者，使其更 能了解本發明的製作方法，並非限制本發明之範疇。 將35 wt%的硝化纖維素溶解於65评伐的乙酸丁酯中， 再將上述溶液與尿素甲搭樹脂及水混合，並以sot的溫度 將其隔水加熱2至3小時，使其分層，之後移除上層液， 並在沉殿於下層的粉體中加人體積至少為粉體3倍的乙二 醇丁醚’再於该上述混合溶液中加入2〇的非離子型界 面活性劑，最後10 wt%具有非離子型界面活性劑的混合溶 液加入-丙烯酸樹脂中，即可得到抗回黏的水性塗料。 200904922 一般的硝化纖維素係作為油性 主针的基材，但油性塗 料必須使用有毒的揮發性溶劑，作 ⑷ 本發明之方法是將苴水 性化後，添加至水溶性塗料中， 八 j讓所传到的水性塗料 具有抗回黏的效果，無須使用揮發 . 设『生，合劑，，因此盔論是 塗料加工的操作員或是使用者都I '' …、而擔，而能放心地使 用在食品包裝方面。再者，由於故扯丄 .. ;雖然本發明之塗料為水溶 性，但其可達成與油性塗料相同 认y u的柷回黏效果，所以塗佈 ;、、氏張或紙盒之後，能夠讓其方便 乃使運送，而不會損壞》 【圖式簡單說明】 ' 第一圖係本發明之製作流程方塊圖。 【主要元件符號說明】 (1 )硝化纖維素溶液製備步驟 (2 )第一混合溶液製備步驟 (3)第一混合溶液製備步驟 (4 )第三混合溶液製備步驟 (5 )產物製備步驟 10200904922 IX. Description of the Invention: [Technical Field] The present invention relates to a method for producing an aqueous coating, in particular, an aqueous one which can be made of an oily stone, and then mixed with an acrylic resin to form a coating. To make it have a method of anti-sticking effect. [Prior Art] Generally, paper or paper boxes, such as packaging gift boxes, shoe boxes, etc., because of the white surface printed with a picture t, text, etc., usually a coating is applied on the surface to protect the surface of the paper or carton. And increase the brightness and texture. The far coating is a light program, a calendering procedure or an ultraviolet (uv) irradiation procedure to apply the coating to the surface of the paper or the carton, which is first applied by a roller to the surface of the paper or the carton to form A layer of coating film can be further subjected to heat=heating (glazing procedure), heated iron plate conveyor belt (calendering procedure), or uv lamp irradiation (UV irradiation procedure) with high temperature and stable heat source. The soil film is fixed on the surface of the paper or paper, and the dried film can lift the surface or the surface of the carton. v, , <"1/分,丨土兴〉Φ性), lacquer and water-soluble resin n. The water-soluble paint uses water as d (diluent), so it is not toxic, so it is environmentally friendly. , the cost is low y and non-flammable and does not support combustion 'so it can safely transport paper or paper box, _ mesh: is widely used paint; 'However, the carton is (four), this coating: the film has heat Plasticity, so after pressing, high temperature or seat: it will produce aftertack, usually in the peak / back door or storage, because the carton stacking will produce "medium 7, and not 5 200904922 Therefore, it is easy to control the temperature and the degree of stability of the transportation and the living environment. The so-called "rebonding and Μι*", also known as re-adhesion phenomenon, is caused by the adhesion of the coating film after drying. The dry weld makeup can be made in the shape of an island. The result of the stickiness is that the coating:: adheres to the surface of the carton on the side of the circumference. - But when it is dry, it will make a plurality of pieces: the stick is in one. If the force is applied to separate it, the surface of the carton will be The film is then separated from the carton, causing tearing and damage to the carton. The waterborne coatings began to develop 30 years ago, but the use of single-waterborne coatings still has the problem of stickiness and cannot be solved. Another type of coating is an oily coating which does not cause the problem of tackiness as described above under any circumstances. 1 The oily coatings currently used utilize volatile substances as solvents (such as toluene), so there is considerable Toxicity is not guaranteed for the health of the operator who is applying the paint. However, people who come into contact with the oily 's confession, ^, and another lake, may also be hurt, so Oily coatings cannot be used on food-related products. SUMMARY OF THE INVENTION The present inventors have in view of the problem that the current water-based paints have a stickiness, and the oil-based paints are toxic. Therefore, after continuous research and unremitting trials, the inventors have finally invented the anti-sticking water-based paints. Method 0 The object of the present invention is to provide a method capable of water-reducing oily nitrocellulose and mixing it with an acrylic water-based resin to form a coating to have an anti-sticking effect. In order to achieve the above object, the present invention produces a non-sticking water-based paint method 200904922, which comprises the steps of: dissolving 30 wt% to 40 wt% of nitrocellulose in 60 wt% to 70 wt% N-butyl acetate to form a nitrocellulose solution; mixing the nitrocellulose solution with urea-formaldehyde (UF) and water to form a first mixed solution' and ~9 (the temperature of the TC is heated by heating the first mixed solution for 2 to 3 hours, so that the first mixed solution is divided into upper and lower layers, the lower layer is the powder of the sinking chamber, and the upper layer is liquid; after that, removing a supernatant liquid, and adding ethylene glycol oxime (ethylene glyc 〇 1 monobutyl ether) in a volume of at least twice the powder to the lower layer powder to form a second mixed solution; and adding the second mixed solution The non-ionic surfactant is used to form a third mixed solution; finally, 3 wt% to 15 wt% of the third mixed solution is added to a water-soluble paint to obtain an anti-adhesive water-based paint. Preferably, Nitrocellulose in the first solution The mixed volume ratio of the solution, urea formaldehyde tree, and water is about 1: 1: 2. Preferably, the water in the first solution is distilled water using minerals. Preferably, the first mixed solution is used. The temperature for heating by water is 80. (: It is preferred that the volume of ethylene glycol butyl ether added to the lower layer powder is 2 to 3 times that of the powder. Preferably, it is added to the second mixed solution. The nonionic interfacial activity J is 20 wt% of the whole third solution. 7 200904922 Che Yijia's water-soluble coating is an acrylic resin (ie, the acrylic L-filament fiber system is used as a substrate for oily coatings, However, using this X, the method of watering it, adding it to the water-soluble paint, can make the water-based paint that has been obtained have anti-sticking effect, and after being coated on paper or paper box, it is convenient to make it convenient. It can be transported without damaging 35, and the party of the present invention does not need to use the toxic volatile solvent of the stupid ring, so no matter whether it is the operator or the user of the paint processing, there is no need to worry, and it can be safely used in the food packaging. Aspect. [Embodiment] Please refer to the The present invention shows a method for producing an anti-sticking aqueous coating comprising the following steps: a nitrocellulose solution preparation step (1): 3 〇 wt% to 4 〇 of nitrocellulose (〇) Dissolved in 6〇% to wt% of n-butyl acetate at room temperature to form a nitrocellulose solution; ' 'First mixed solution preparation step (2): the nitrocellulose solution, urea formaldehyde resin (urea-formaldehyde, UF) and distilled water are mixed in a volume ratio of 丨: 2 to form a first mixed solution, and the first mixed solution is heated by water at a temperature of 65 to 9 Torr for 2 to 3 hours, The preferred heating temperature is 80 ° C, so that the first mixed solution is divided into upper and lower layers, the lower layer is a precipitated powder, and the upper layer is a liquid; the second mixed solution preparation step (3): removing the first The upper layer in the solution' and draining the lower layer of powder, and then adding ethylene glyceryl ether (ethylene giycol m〇n 〇 butyl ether) having a volume of at least 200904922 powder to the powder to form Second mixed solution to introduce in nitrocellulose a water-based functional group; a third mixed solution preparation step (4): adding a non-ionic surfactant to the second mixed solution to form a third mixed solution, wherein the non-ionic surfactant is a whole third solution 2〇wt%, wherein the nonionic surfactant comprises a low foaming surfactant, such as an oxyethylene-oxypropylene copolymer (E〇/P〇cop〇iymer), etc., a tackifier (c〇c 〇amide DEA), pearlescent agent (EGDS) a other nonionic surfactant known to those of ordinary skill in the art; product preparation step (5): finally 3 wt% to 15 wt% of the third The mixed solution is added to an acrylic resin coating to obtain an anti-sticking water-based paint. EXAMPLES The following examples are provided to those of ordinary skill in the art to make the present invention more versatile and not to limit the scope of the invention. Dissolve 35 wt% of nitrocellulose in 65 butyl acetate, mix the solution with urea resin and water, and heat it at a temperature of sot for 2 to 3 hours. a layer, after which the upper layer liquid is removed, and a volume of at least 3 times the amount of ethylene glycol butyl ether is added to the lower layer of the powder in the sinking chamber. Then, 2 〇 of nonionic interfacial activity is added to the mixed solution. The last 10 wt% of a mixed solution of a nonionic surfactant is added to the acrylic resin to obtain an anti-sticking aqueous coating. 200904922 General nitrocellulose is used as the base material for oily main needles, but oily coatings must use toxic volatile solvents. (4) The method of the present invention is to add water to the water-soluble paint after being hydrophobized. The water-based paint that has been passed has anti-sticking effect and does not need to be volatilized. It is set to "raw, mix, and therefore the helmet theory is the operator or user of the paint processing, and can use it with confidence." In food packaging. Furthermore, although the coating of the present invention is water-soluble, it can achieve the same 柷 柷 柷 与 与 , 油 , , , , , , , , 油 油 油 油 油 油 油 油 油 油 油 油 油 油 油 油 油 油 油 油The convenience is to make the transportation without damage. [The simple description of the drawing] 'The first picture is a block diagram of the production process of the present invention. [Description of main component symbols] (1) Preparation step of nitrocellulose solution (2) Preparation step of first mixed solution (3) Preparation step of first mixed solution (4) Preparation step of third mixed solution (5) Step of preparing product 10