200401064 玖、發明說明 【發明所屬之技術領域】 製造方法，且特別 材料微膠囊塗佈液 本發明是有關於一種織品塗佈液的 是有關於一種塗佈於織品上之具相變化 的製造方法。 【先前技術 熱儲存（釋放）材料即相變化材料 Material, PCMS)為一種在特定相 3δΘ_ 3〇9® 勺禋在特疋溫度範圍内，其物理錤可 由固相變化至液相，或由液相 、 ^ 主固相的物質。當鈇， 很多物質可以在某一溫度範圍 質 …、 r作為相變化材料，例如， 水-冰就可以在攝氏0度左右 石作為相變化材料使用。 對於相變化材料的逆用古 ㈣選用有兩個考量點，第_是相變化 村料適用的溫度範圍，第二 潛埶的吸收i?摆* 彳冑化材料在相變化時伴隨 澄熟的及收或釋放的大小。 mm ^ ^ ^ ^ ^ 基本上係視環境溫度的需要來 .^ 材料。再者，也會選擇具有較 大潛熱值的相變化材料來 M m , 仃應用，較大的潛熱值代表在 相變化時可以吸收/釋放更 r . ^ 文夕的熱量，而可以在相變化溫度 範圍内維持較長的時間， ]而侍到較佳的效果。 通常相變化材料在加埶 ，“'過程中所造成的溫度上昇現象 在到達熔點後會消失。在 # # A is IH ^ * 個相轉變過程完成後，相變化 材科及週圍環境的温度 舶 甘、0 ώ A 举待一疋，假如再對此類材料加 熱’其溫度會持續上昇。 6 200401064 ’潛熱將被釋放 溫度維持不變。 ’其溫度會持續 出 當 降 當冷卻至相變化材料結晶溫度時 來。在液相轉為固相時，相變化材料的 相變化完成後’若對此類材料持續降溫 低。 行 將 囊 化 由於相變化材料在實際應用 轉變，當相變化材料為液態時 會發生逸失的情形， 時會在於固態及液態間進 若無任何包覆層的包覆， 因此， 種將相變化材料利用微膠 包覆而避免液態相變化妯剌_褅生& t 文化材科逸失的技術已被運用於相變 材料的應用領域之内。 相變化材料在紡織品上應用’一般都是將相變化材料 包埋於微膠囊中後，再植入纖維中或塗佈在紡織品上。相 變化材料微膠囊塗佈紡織品除了提供潛熱的功能外，一般 會要求可呼吸性（breathability)、柔軟性（f|exibHty)、 可洗性（washability)及耐久性（durability);而且在塗 佈加工過程需能抵抗溫度變化、壓力變化及化學品的忍受 力。 習知包覆相變化材料的微膠囊具有疏水性的外殼，在 完成製造之後係分散於有機溶劑之中，之後需要移除有機 溶劑而形成微膠囊粉末或是微膠囊泥漿（Slurry)。美國專 利US6207738「包含吸熱相變化材料之的織品塗佈組成 -FABRIC COATING COMPOSITION CONTAINING ENERGY ABSORBING PHASE CHANGE MATERIAL」公告 於2001年3月27曰，揭露了 一個調配好的包含吸熱相變 化材料之的織品塗佈組成，利用包覆石蠟烷（Paraffinic 7 200401064200401064 发明. Description of the invention [Technical field to which the invention belongs] Manufacturing method, and special material microcapsule coating liquid The present invention relates to a fabric coating liquid, and relates to a manufacturing method with a phase change applied to a fabric . [Prior art material for thermal storage (release) is phase change material (Material, PCMS)), which is a kind of 3δΘ_309 in a specific phase. In a special temperature range, its physical properties can be changed from the solid phase to the liquid phase, or from the liquid phase. Phase, ^ Substance in the main solid phase. Many materials can be used as phase change materials in a certain temperature range. For example, water-ice can be used as phase change materials at about 0 ° C. There are two considerations for the selection of phase change materials. The first _ is the temperature range for which the phase change material is suitable. The second latent absorption i? Pendulum * The tritium material is accompanied by the mature phase change. And the size of the receipt or release. mm ^ ^ ^ ^ ^ Basically it depends on the needs of the ambient temperature. In addition, a phase change material with a larger latent heat value will also be selected for the application of M m, 较大. A larger latent heat value means that it can absorb / release more r. Maintain a longer time in the temperature range,] and better results. Generally, when the phase change material is added, the temperature rise phenomenon caused by the "" process will disappear after reaching the melting point. After the # # A is IH ^ * phase change process is completed, the phase change material and the ambient temperature Ca n’t wait a moment. If this kind of material is heated again, its temperature will continue to rise. 6 200401064 'Latent heat will be released and maintained at the same temperature.' Its temperature will continue to drop when it cools down to phase-change material crystals When the temperature changes. When the liquid phase is changed to the solid phase, the phase change of the phase change material is completed. If such materials continue to cool down, it will be encapsulated due to the phase change material in practical application. When the phase change material is liquid The escape situation sometimes occurs when there is no coating between the solid and liquid phases. Therefore, a phase change material is coated with a microgel to avoid liquid phase changes. 妯 剌 妯 剌 生 & t The technology of cultural materials has been used in the field of phase change materials. The application of phase change materials in textiles is generally after the phase change materials are embedded in microcapsules. Implanted in fibers or coated on textiles. In addition to microcapsule-coated textiles with phase change materials, in addition to providing latent heat, they generally require breathability, softness (f | exibHty), and washability. And durability; and the coating process needs to be able to resist temperature changes, pressure changes and the tolerance of chemicals. Known microcapsules coated with phase change materials have a hydrophobic shell, which is dispersed after completion of manufacturing In the organic solvent, the organic solvent needs to be removed to form a microcapsule powder or a microcapsule slurry. US Patent US6207738 "Fabric Coating Composition Containing Endothermic Phase Change Materials-FABRIC COATING COMPOSITION CONTAINING ENERGY ABSORBING PHASE CHANGE The "MATERIAL" announcement was published on March 27, 2001, revealing a blended fabric coating composition containing an endothermic phase change material. The use of coated paraffin (Paraffinic 7 200401064
Hydrocarbons )相變化材料所形成的微膠囊、高分子接著 劑（Polymeric binder )、界面活性劑（Surfactant )、分散 劑（Dispersant)、消泡劑（Antifoam agent )及增稠劑 (Thickener)所形成的水溶液以形成塗佈液。 美國專利US6503976「包含吸熱相變化材料之的織 品塗佈組成及其製造方法-FABRIC COATING COMPOSITION CONTAINING ENERGY ABSORBING PHASE CHANGE MATERIAL AND METHOD OF MANUFACTURING SAME」公告於2003年1月7日，則 揭露了前述US6207738中之包含吸熱相變化材料之的織 品塗佈組成的製造方法。將包覆石蠟烷（Paraffinic Hydrocarbons)相變化材料所形成的微膠囊、界面活性劑 (Surfactant)、分散劑（Dispersant)及增稠劑（Thickener) 加水混和以形成第一分散液，再加入消泡劑（Antifoam agent)。接著，以高分子接著劑（polymeric binder)、界 面活性劑（Surfactant )、分散劑（Dispersant)、消泡劑 (Antifoam agent)及增稠劑（Thickener)加水混和以形成 第二分散液。將第一分散液及第二分散液混和之後形成塗 佈液。 習知之所以大費周章來形成塗佈液在於所用的微膠囊 粉末或是微膠囊泥漿具有疏水性的外殼，而適用於織品之 塗佈液對微膠囊的分散性的要求非常的高，為求能得到微 膠囊良好分散之塗佈液，不得不如此進行。 另外’習知提供之塗佈液，由於採用疏水性外殼之微 8 200401064 膠囊，習知採用的高分子接著劑為丙烯酸酯（Ac「yNc Ester )、苯乙烯（Styrene)、異戊二烯（Isoprene)、丙烯氰 (Acrylonitrile)、丁二稀（Butadiene)、乙酸乙烯酯（Vinyl Acetate)、乙烯基氯（Vinyl Chloride)、二乙烯基氯 (Vinyldiene Chloride)、乙稀（Ethylene)、丁烯（Butylene)、 丙烯（Propylene)和氣丙烯（Chioroprene)等等為單體之疏 水性高分子接著劑或是梦氧樹酯（Silicone)、環氧樹酯 (Epoxy)、聚胺基曱酸酯（Polyurethane)、氟碳化物 (Fluorocarbons)、聚乙烯磺醯氣（Ch|〇r〇sulf〇nated Polyethylene)和聚乙烯氣（Ch|orinated p〇丨yethy丨ene) 等等。因此，習知為確保高分子接著劑能確實分散於水相 中，&界面活性劑及分散劑又是無可避免的添加劑。 前兩篇專利中以水相的塗佈液取代有機相塗佈液以避 免了有溶劑危害微膠囊的問冑’大量的界面活性劑及分散 劑的添加使塗佈液製程的時間加*，如美國專利 US6503976所揭露的箆—八無$ ^ ^ . 的第分散液，必須靜置1〜48小時使 於6 ，姓刀佈達成平衡，而較佳的靜置時間係介 於b〜2 4小睥夕i , 何簡…— 間上非常的不經濟。因此，如 、、步形成的塗佈液，且塗佈液中 活性劑及分散劑 中無須添加界面 成為一個亟待解決的問題。 【發明内容】 在微膠囊疏水性的 法中，可以瞭解關鍵點係出現 能使用具有親水性外殼的微膠 200401064 囊’則微膠囊在水相中的分散性可獲大幅改善。 有鑑於此，本發明的目的就是在提供一種具 效應之織品塗佈液，無須添加界面活性劑及分散 使微膠囊均勻分佈於塗佈液中。 本發明的另一目的就是在提供一種具潛熱變 織品塗佈液，係為一水性塗佈液。 本發明的又一目的就是在提供一種具潛熱變 Hi # & U有親水性外殼之微膠囊。 本發明的再一目的就是在提供一種具潛熱變 織°°塗佈液的製造方法，僅需一步製程，10分鐘 的靜置’即可形成適用於塗佈於織品上塗佈液。 本發明所揭露之具潛熱變化效應之織品塗佈 覆相變化材料的微膠囊’係具有一親水性的外殼 有親水性外殼之微膠囊，係可以為利用界面聚 成°其中親水性的外殼係由水相中的水性聚胺酯 性 t 胺基曱酸酉旨（Waterborne Polyurethane )含 2 甲基）丙酸或其三乙基胺鹽 '磺酸鈉的二胺鹽及 和所組成之族群和在有機相中之油相單體，例如 胺或異氰酸鹽，聚合而成。λ中，相變化材料係 酸酯、烷基或芳香基的碳氫化物、飽和或不飽和 脂肪酸、脂肪醇、C6-C30脂肪胺、酯類、天然及 函素化碳氫化物及其任意組和之族群。其中， C1-C10烷基脂肪酸酯，如丙基（或曱基）十六 基十八酸酯或曱基十六酸酯或混合或曱基ρ 潛熱變化 劑，即可 化效應之 化效應之 化效應之 至6小時 液中的包 。此一具 合法來形 ，例如水 “2-雙（羥 其任意組 三聚氰醯 選自於羧 C6-C30 合成臘、 其酯類為 酸酯，曱 句桂酸醋 10 200401064 (Methyl Cinnamate)、等等。 在經過均質機高速乳化並進行加熱，即可形成包覆相 變化材料的微膠囊分散存在於水相之中。最後可以得到 有25%〜55%固型物之水溶液，其中微膠囊的大小會介於 1微米至1 0微米之間。將具有微膠囊的水溶液加 八同分子 接著劑及增稍劑，以每分鐘1000轉至4000轉的魅$ & 释迷進行 攪拌至黏稠度介於6000cps至I2000cps後，靜置1〇八 鐘至6小時’及可供織品塗佈之用。在進行大量處理時， 若有大量泡沫產生，可另外加入消泡劑，但消泡劑的使用 並非必要的。 由於微膠囊具有親水性的外殼，所以在完成微膠囊# 製程之後，微膠囊已經分散於水中。高分子接著劑的目的 在於將微膠囊附著於織品之上’ 一般是使用矽氧樹酯、環 氧樹酯、水性聚胺基甲酸酯、氟碳化物、聚乙烯續醯氣、 聚乙烯氣 '三聚氰醯胺、異氰酸鹽或其任意組和》高分子 接著劑的使用量為微膠囊使用量的1%至90%。 使用增稠劑的目的在於使塗佈液黏稠，在將塗佈液塗 佈在織品上時，不會發生塗佈液穿透織品而逸漏。一般增 稠劑係選自於聚丙烯酸（p〇|y Acry|ic Acid)、纖維素酯 (Cellulose Ester)和其衍生物（Derivatives )、聚乙烯 醇或其他已知可增加黏稠度的的物質及其任意組和所組成 之族群。增稠劑的使用的重量約為微膠囊使用重量的2% 至1 2 %之間。至於消泡劑的選用’可選擇如脂肪酸鹽、磺 11 酸睫、4 i 性为散之矽油或水性分散之矽粉等等，.％ % @ m 使用量為塗佈液重量的。…％。塗佈二=劑的 於_至㈣之間。 纟佈^水含量約介 額外所提供的具潛熱變化效應之織品塗佈液，無須 另外添加分散劑和界面活性劑’ :掉後1需…。分…小時即可使：的和= 即的組成及製造方法相較之下，可以大幅降低成本 P卽4製備之時間。 【實施方式】 .為了讓本發明所提供之適具潛熱變化效應之織品塗佈 液及製造方法更加彡杳播扣目 t , 清楚起見下文特舉數個較佳實施例， 來詳細說明如何運用本發明所想諡+ / +赞Λ所揭露之組成及製造方法，並 進一步由實施例之揭露來瞭解本發明之優點。 實施例一 取内含40%包覆相變化 材質之親水性微膠囊之水溶 液100克，加入異氮酸鹽1妾 乍為高分子接合劍，再加入 聚乙烯醇3.5克’經每分鐘 υ〇轉之轉速攪拌至容易黏 稠度大於8000cps為止，靜晉 〇分鐘，即可形成水含量 為57.4%之具潛熱變化效應 織•品塗佈液。 膏施例二 取内含 40%包覆相變 化材質之親 水性微膠囊之水溶 12 200401064 液1 0 0克，加入水性聚胺基甲酸酯/三聚氰醯胺3 6克作為 高分子接合劑，再加入纖維素酯1 .4 8克，經每分鐘3 0 0 0 轉之轉速攪拌至容易黏稠度大於6500cps為止，靜置2小 時，即可形成水含量為4 3.6 %之具潛熱變化效應之織品塗 佈液。 實施例三 取内含 50 %包覆相變化材質之親水性微膠囊之水溶 液1 00克，加入水性聚胺基甲酸酯/異氰酸鹽44克作為高 分子接合劑，再加入纖維素酯1 .48克，經每分鐘2000轉 之轉速攪拌至容易黏稠度大於7000cps為止，靜置4小 時，即可形成水含量為3 4.3 %之具潛熱變化效應之織品塗 佈液。 實施例四 取内含30 %包覆相變化材質之親水性微膠囊之水溶 液100克，加入異氰酸鹽1克作為高分子接合劑，再加入 聚乙烯醇3.5克，經每分鐘2000轉之轉速攪拌至容易黏 稠度大於8000cps為止，靜置20分鐘，即可形成水含量 為67 %之具潛熱變化效應之織品塗佈液。 實施例五 取内含40 %包覆相變化材質之親水性微膠囊之水溶 液5 0 0 0克，加入水性聚胺基曱酸酯4 0 0克作為高分子接 13 200401064 合劑，再加入纖維素酯 80克，另外，尚須加入消泡劑水 性分散之矽粉5.5克，經每分鐘2000轉之轉速攪拌至容 易黏稠度大於8000cps為止，靜置6小時，即可形成水含 量為54 6%之具潛熱變化效應之織品塗佈液。 一般而言，在小量試製的時候，並不需要加入消泡劑， 只要在大量生產時，才需視情形加入適量的消泡劑。在本 實施例中，消泡劑的添加量僅需〇 · 1 %重量百分率即可。 【圖式簡單說明】 【元件代表符號簡單說明】 14Hydrocarbons) phase change material formed microcapsules, polymer binder (Polymeric binder), surfactant (Surfactant), dispersant (Dispersant), antifoam agent (Antifoam agent) and thickener (Thickener) An aqueous solution to form a coating liquid. U.S. Patent US6503976 "Fabric Coating Composition Containing Endothermic Phase Change Material and Manufacturing Method-FABRIC COATING COMPOSITION CONTAINING ENERGY ABSORBING PHASE CHANGE MATERIAL AND METHOD OF MANUFACTURING SAME" was published on January 7, 2003, and disclosed in the aforementioned US6207738 A method for manufacturing a fabric coating composition containing an endothermic phase change material. Mixing microcapsules, surfactants, dispersants, and thickeners formed by coating phase change materials with paraffinic hydrocarbons to form a first dispersion, and then adding antifoam Agent (Antifoam agent). Next, a polymer binder, a surfactant, a dispersant, an antifoam agent, and a thickener are mixed with water to form a second dispersion liquid. The first dispersion liquid and the second dispersion liquid are mixed to form a coating liquid. The reason why it takes a lot of time to form a coating liquid is that the microcapsule powder or the microcapsule slurry has a hydrophobic shell, and the coating liquid suitable for fabrics has very high requirements for the dispersibility of the microcapsules. To obtain a coating solution in which microcapsules are well dispersed, this has to be done. In addition, because the coating solution provided by Xizhi uses a microshell with a hydrophobic shell, the 200401064 capsules, and the polymer adhesives conventionally used are acrylate (Ac "yNc Ester", styrene (Styrene), isoprene ( Isoprene), Acrylonitrile, Butadiene, Vinyl Acetate, Vinyl Chloride, Vinyldiene Chloride, Ethylene, Butene Butylene), Propylene, Chioroprene, etc. are hydrophobic polymer adhesives for monomers, or Silone, Epoxy, Polyurethane ), Fluorocarbons (Fluorocarbons), polyethylene sulfonium gas (Ch | 〇or〇sulfonated Polyethylene) and polyethylene (Ch | orinated p〇 丨 yethy 丨 ene), etc. Therefore, it is known to ensure high The molecular adhesive can be dispersed in the water phase, and the surfactant and dispersant are unavoidable additives. In the first two patents, the organic phase coating liquid was replaced by the water phase coating liquid to avoid solvents. Questions about harm to microcapsules' The amount of surface active agent and dispersant is added to increase the time of the coating liquid process. For example, as disclosed in US Patent No. 6,503,976, the first dispersion liquid must be left for 1 to 48 hours to reach 6 , The name of the knife cloth reached a balance, and the better standing time is between b ~ 2 4 Xiao Xi Xi, He Jian ... It is very uneconomical. Therefore, the coating solution formed by, The need to add interfaces to the active agent and dispersant in the coating solution has become an urgent problem. [Abstract] In the microcapsule hydrophobic method, it can be understood that the key point is the use of microgels with a hydrophilic shell. 200401064 Capsules 'The dispersibility of the microcapsules in the water phase can be greatly improved. In view of this, the object of the present invention is to provide an effective fabric coating liquid without adding surfactants and dispersing so that the microcapsules are evenly distributed on the coating. Cloth liquid. Another object of the present invention is to provide a latent heat variable fabric coating liquid, which is an aqueous coating liquid. Another object of the present invention is to provide a latent heat variable Hi # & U is hydrophilic Extra-sex Microcapsules. Another object of the present invention is to provide a manufacturing method of latent heat-varying °° coating solution, which requires only one step process and 10 minutes of standing time to form a coating suitable for coating on fabrics. The microcapsules with a latent heat change effect and coated with a phase change material disclosed in the present invention are microcapsules with a hydrophilic outer shell and a hydrophilic outer shell. The shell is composed of a diamine salt of sodium sulfonate containing 2 methyl) propionic acid or its triethylamine salt, and a waterborne polyurethane in the aqueous phase. The oil phase monomers in the organic phase, such as amines or isocyanates, are polymerized. In λ, the phase change material is an acid ester, an alkyl or aromatic hydrocarbon, a saturated or unsaturated fatty acid, a fatty alcohol, a C6-C30 fatty amine, an ester, a natural and a functionalized hydrocarbon, and any combination thereof. And the ethnic group. Among them, C1-C10 alkyl fatty acid esters, such as propyl (or fluorenyl) hexadecyl octadecanoate or fluorenyl hexadecanoate or mixed or fluorenyl ρ latent heat change agents, can convert the effect The chemical effect is up to 6 hours in the liquid bag. This is a legal form, for example, water "2-bis (hydroxy, cyanocyanine of any group thereof is selected from carboxylic C6-C30 synthetic wax, its esters are acid esters, and haiku laurate 10 200401064 (Methyl Cinnamate) Etc. After the homogenizer is emulsified and heated at high speed, the microcapsules forming the phase change material can be dispersed in the water phase. Finally, an aqueous solution containing 25% to 55% solids can be obtained, in which The size of the capsule will be between 1 micrometer and 10 micrometers. The aqueous solution with microcapsules is added with the same molecular adhesive and thinner, and stirred at a speed of 1000 to 4000 revolutions per minute. After the viscosity is between 6000cps and I2000cps, let it stand for 108 to 6 hours and can be used for fabric coating. If a large amount of foam is generated during a large amount of processing, an additional defoamer can be added, but the defoaming The use of the adhesive is not necessary. Because the microcapsules have a hydrophilic shell, after the completion of the microcapsule # process, the microcapsules have been dispersed in water. The purpose of the polymer adhesive is to attach the microcapsules to the fabric. Use Silox Resin, epoxy resin, water-based polyurethane, fluorocarbon, polyethylene gas, polyethylene gas, melamine, isocyanate or any combination thereof, and polymer adhesive The amount used is 1% to 90% of the amount of microcapsules. The purpose of using a thickener is to make the coating liquid thick, and when the coating liquid is coated on the fabric, the coating liquid does not penetrate the fabric and Leakage. Generally thickener is selected from polyacrylic acid (Polyacrylic acid), cellulose ester (Cellulose Ester) and its derivatives (Derivatives), polyvinyl alcohol or other known to increase viscosity Substances and any groups and groups thereof. The weight of the thickener used is between 2% and 12% of the weight of the microcapsules. As for the choice of defoaming agents, such as fatty acid salts, 11 acid eyelashes, 4 i properties are loose silicon oil or water-dispersed silicon powder, etc., %% @ m The amount used is the weight of the coating solution ....%.纟 The water content of the cloth is about the additional fabric coating liquid with latent heat change effect, no additional dispersant and interfacial activity are needed. Sex agent ': It takes 1 minute after the drop. Hours can be used: Sum = The composition and manufacturing method can greatly reduce the cost of the preparation time of P 卽 4. [Embodiment] In order to make this The fabric coating liquid and manufacturing method provided by the present invention are suitable for fabricating liquids, and for clarity, several preferred embodiments are given below to illustrate how to use the present invention. + The composition and manufacturing method disclosed by Zan Λ, and the advantages of the present invention will be further understood through the disclosure of the embodiment. Example 1 Take 100 g of an aqueous solution of a hydrophilic microcapsule containing 40% of a coated phase-change material, and add isocyanate. Nitric acid salt 1 is a polymer-bonded sword, and then add 3.5 grams of polyvinyl alcohol, and stir it at a speed of υ〇 revolutions per minute until the viscosity is easy to exceed 8000cps. After static cooling for 0 minutes, a water content of 57.4% can be formed. Laminating product with latent heat change effect. Example 2 of the cream: Take the water-soluble 12 200401064 liquid microcapsules containing 40% of the coated phase-change material in water, and add 100 grams of liquid, and add 36 grams of water-based polyurethane / melamine as polymer bonding. Add 1.8 g of cellulose ester, stir at a speed of 3,000 revolutions per minute until the viscosity is more than 6,500 cps, and leave it for 2 hours to form a latent heat change with a water content of 4 3.6%. Effect fabric coating solution. Example 3 Take 100 g of an aqueous solution of a hydrophilic microcapsule containing 50% coated phase-change material, add 44 g of an aqueous polyurethane / isocyanate as a polymer binder, and then add cellulose ester 1.48 grams, stirring at a speed of 2000 revolutions per minute until the viscosity is easily greater than 7000 cps, and standing for 4 hours, a fabric coating solution with a latent heat change effect with a water content of 3 4.3% can be formed. Example 4: Take 100 g of an aqueous solution of a hydrophilic microcapsule containing 30% coated phase-change material, add 1 g of isocyanate as a polymer binder, and then add 3.5 g of polyvinyl alcohol. After 2000 revolutions per minute, Stir at a speed until the viscosity is more than 8000 cps, and leave it for 20 minutes to form a fabric coating solution with a latent heat change effect with a water content of 67%. Example 5 Take 500 g of an aqueous solution of a hydrophilic microcapsule containing 40% of a coated phase-change material, and add 400 g of an aqueous polyaminophosphonate as a macromolecule 13 200401064 mixture, and then add cellulose 80 grams of esters. In addition, 5.5 grams of water-dispersed silica powder must be added to the defoamer. Stir at 2000 revolutions per minute until the viscosity is more than 8000 cps. Let stand for 6 hours to form a water content of 54 6%. Fabric coating liquid with latent heat change effect. Generally speaking, it is not necessary to add an antifoaming agent during trial production in small quantities, as long as it is necessary to add an appropriate amount of antifoaming agent in mass production. In this embodiment, the addition amount of the defoaming agent only needs to be 0.1% by weight. [Brief description of the diagram] [Simple description of the element representative symbols] 14