201134658 六、發明說明： 【發明所屬之技術領域】 本發明係關於離型片，離型片之製造方法及合成皮革。 【先前技術】 離型片稱為澆鑄紙（casting pape〇 ，已用於製造由聚 胺基曱酸酯樹脂及氣乙烯樹脂製成之合成皮革。 離型片藉由以下方法製造：將諸如聚丙烯樹脂及聚曱 基戊烯樹脂之熱塑樹脂疊層於基板紙（基板片）表面上， 且用在表面上具有微小不規則外形（亦即凹形及凸形）之 壓印滾筒（例如如圖4A所示配置）壓印熱塑樹脂層。離型 片僅在疊層於基板紙（基板片）41上之熱塑樹脂層Ο上具 有壓印圖案》 〃 表面上轉印壓印圖案的合成皮革藉由以下方法製造： 藉由擠壓諸如聚胺基曱酸酯樹脂及氧乙烯樹脂之材料塗覆 離型片表面；乾燥聚胺基曱酸酯樹脂、氯乙烯樹脂及其類 似物以固化離型片；及剝離離型片以轉印離型片上之圖案。 離型片之另-實例於專利讀i中揭示，其包括紙層 及衣紙層上供之熱塑樹脂壓印層。專利文獻1中揭示之 整個離型片（亦即紙層及壓印層）彎曲成波形。在該種離 型片中，在製造期間施加之壓印壓力到達紙層（參見圖， 其中參考數字43表示紙層且參考數字44表示壓印層）。 以下專利文獻2揭示用於製造粗糙（亦即無光澤）物 品之另一種離型片，該離型片包括：基板片；在基板片上 提供之具有微小不規則外形之粗糙層；及於粗糙層表面上 201134658 層提層藉由含有超細粒子之離型樹脂塗覆 層“、㈣未經慶印，但其表面 不規則外形產生之較多微小不規料形。（層之^小 然而，已知離型片之熱塑樹脂層僅具 熱塑樹脂層提供之壓印圖窣藉由 圖案或具有粗糙形狀之微小不規 =右因此’僅可提供較少類型之壓印圖案，使得難以 製w具有較豐富紋理之合成皮革物品。 [專利文獻 1 丨 JP-A-2007-296672 [專利文獻 2] WO 2006/006713 【發明内容】 之合成皮 製造之合 本發明之目的為提供能夠製造具有豐富紋理 革之離型4 ’離型片之製造方法及使用該離型片 成皮革。 本發明内容如下所列者： 4 [1]根據本發明之一態樣之離型片包括：基板片及疊層 於忒基板片上之熱塑樹脂層’其中於熱塑樹脂層之表面上 形成兩種或兩種以上不同壓印圓案。 [2] 在根據以上態樣[丨]之離型片中，兩種或兩種以上 不同壓印圖案中—者之不規則外形的深度可小於另—壓印 圖案不規則外形之深度。 [3] 在根據[丨]或[2]之離型片中，基板片及熱塑樹脂声 可經各別壓印，且在基板片上形成之壓印圖案顯現在熱塑 樹脂層表面上。 [4] 在根據[3]之離型片中，藉由壓印熱塑樹脂層提供 201134658 之壓印圖案之不規則外形的度 ^ ^ m c n ^ 不没藉由壓印基板片提 仏之壓印圖案之不規則外形的深度。 [5]根據本發明之'態樣之離型片的製造方法包括:壓 第塵印步驟，將熱塑樹脂層疊層於壓印基板 片上之疊層步驟；及壓印疊層熱塑樹脂層之第二壓印步 驟，其中第-壓印步驟及第二壓印步驟所提供之壓印圖案 的不規則外形彼此不同。 [6] 皮革。 藉由使用根據[1]至[4]中任一者之離型片 製造合成 根據本發明，由於在離型片之熱塑樹脂層表面上提供 兩種或兩種以上不同麗印㈣，所以可製造具有較豐富紋 理之合成皮革。 【實施方式】 下文參考隨附圖式描述本發明之例示性具體實例。 圖1為根據本發明之例示性具體實例之離型片的截面。 離型片1包括基板片2及熱塑樹脂層熱塑樹脂層3 #層於基板片2上。在熱塑樹脂層3之表面上提供兩種不 同壓印圖亦即第一壓印圖案及第二壓印圖案）。壓印 圖案之詳細描述將於下文提及。 基板片 此例示性具體實例之基板片2可藉由適於支撐熱塑樹 脂層3之任何紙或膜基底提供。基板> 2之特定實例為： 紙基底，諸如面紙（tissue paper)、牛皮紙（kraft paper)、 棉賊紙（Iinter paper )、含磨木漿紙（w〇〇d c〇ntaining 6 201134658201134658 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a release sheet, a method for producing a release sheet, and a synthetic leather. [Prior Art] The release sheet is called cast paper (casting pape, which has been used to manufacture synthetic leather made of polyamine phthalate resin and gas vinyl resin. The release sheet is manufactured by the following method: A thermoplastic resin of a propylene resin and a polydecylpentene resin is laminated on a surface of a substrate paper (substrate sheet), and is used for an impression cylinder having a minute irregular shape (that is, a concave shape and a convex shape) on the surface (for example) The embossed thermoplastic resin layer is disposed as shown in Fig. 4A. The release sheet has an embossed pattern only on the thermoplastic resin layer laminated on the substrate paper (substrate sheet) 41. 转印 A transfer embossed pattern on the surface The synthetic leather is produced by: coating the surface of the release sheet by extruding a material such as a polyamino phthalate resin and an oxyethylene resin; drying the polyamino phthalate resin, vinyl chloride resin and the like To cure the release sheet; and to peel off the release sheet to transfer the pattern on the release sheet. Another example of the release sheet is disclosed in Patent Reading i, which comprises a thermoplastic resin embossing on the paper layer and the paper layer. Layer. The entire release sheet disclosed in Patent Document 1 ( That is, the paper layer and the embossing layer are bent into a wave shape. In the release sheet, the embossing pressure applied during the manufacturing reaches the paper layer (see the figure, wherein reference numeral 43 denotes a paper layer and reference numeral 44 denotes an embossing layer). Patent Document 2 discloses another release sheet for producing a rough (i.e., matte) article, the release sheet comprising: a substrate sheet; a rough layer having a minute irregular shape provided on the substrate sheet; On the surface of the rough layer, the layer of 201134658 is coated with a release resin containing ultrafine particles. (4) The film is not printed, but the surface irregular shape produces more tiny irregular shapes. However, it is known that the thermoplastic resin layer of the release sheet has only the embossing pattern provided by the thermoplastic resin layer, the micro irregularity by the pattern or the rough shape = the right side, and only a lesser type of embossing pattern can be provided. It is difficult to produce a synthetic leather article having a rich texture. [Patent Document 1 丨 JP-A-2007-296672 [Patent Document 2] WO 2006/006713 SUMMARY OF THE INVENTION The purpose of the present invention is to provide Able to manufacture The invention discloses a method for manufacturing a release type 4' release sheet rich in textured leather and using the release sheet to form leather. The present invention is as follows: 4 [1] A release sheet according to an aspect of the present invention includes: a substrate a sheet and a thermoplastic resin layer laminated on the base sheet, wherein two or more different embossing rounds are formed on the surface of the thermoplastic resin layer. [2] Release according to the above [丨] In the film, the depth of the irregular shape of the two or more different embossing patterns may be less than the depth of the irregular shape of the other embossing pattern. [3] The release according to [丨] or [2] In the sheet, the substrate sheet and the thermoplastic resin sound can be embossed separately, and the embossed pattern formed on the substrate sheet is displayed on the surface of the thermoplastic resin layer. [4] In the release sheet according to [3], The degree of irregular shape of the embossed pattern of 201134658 is provided by the embossed thermoplastic resin layer ^ ^ mcn ^ The depth of the irregular shape of the embossed pattern which is not embossed by the imprinted substrate sheet. [5] A method of manufacturing a release sheet according to the present invention, comprising: a step of pressing a dusting step, a laminating step of laminating a layer of a thermoplastic resin on the substrate of the imprinted substrate; and an embossing of the laminated thermoplastic resin layer The second imprinting step, wherein the irregular shapes of the imprint patterns provided by the first imprinting step and the second imprinting step are different from each other. [6] Leather. According to the present invention, by using the release sheet according to any one of [1] to [4], since two or more different prints (four) are provided on the surface of the thermoplastic resin layer of the release sheet, It can produce synthetic leather with rich texture. [Embodiment] Hereinafter, illustrative specific examples of the invention will be described with reference to the accompanying drawings. 1 is a cross section of a release sheet according to an exemplary embodiment of the present invention. The release sheet 1 includes a substrate sheet 2 and a thermoplastic resin layer thermoplastic resin layer 3 # layer on the substrate sheet 2. Two different imprint patterns, i.e., a first imprint pattern and a second imprint pattern, are provided on the surface of the thermoplastic resin layer 3. A detailed description of the embossed pattern will be mentioned below. Substrate Sheet The substrate sheet 2 of this exemplary embodiment can be provided by any paper or film substrate suitable for supporting the thermoplastic resin layer 3. Specific examples of the substrate > 2 are: paper substrates such as tissue paper, kraft paper, Iinter paper, and groundwood pulp paper (w〇〇d c〇ntaining 6 201134658)
PaPer 、道林紙（woodfree PaPer)、浸潰紙（impregnated PaPer)、塗佈紙（coat paper)、銅版紙（扣 paper)、植 物紙（Vegetable PaPer)及玻璃紙（glassine paper);聚烯 彳i知膜，諸如聚乙烯及聚丙烯；乙烯樹脂膜，諸如聚氣 烯聚偏一氣乙烯、聚乙烯醇、乙烯·乙酸乙烯酯共聚物 及乙烯-乙烯醇共聚物；聚酯樹脂膜，諸如聚對苯二甲酸乙 二酯、聚對笨二甲酸丁二酯及聚萘二曱酸乙二酯；及其他 s成树月曰膜，諸如聚苯乙烯、丙烯腈丁二烯苯乙烯共聚物、 三乙醯基纖維素、賽路凡（ceU〇phane)及聚碳酸酯。順帶 而言，就耐熱性及熱成形性而言紙基底較佳。其中，就極 佳耐熱性及尺寸穩定性而言，牛皮紙、含磨木漿紙、道林 紙及浸潰紙較佳。 基板片2之厚度及尺寸不受特別限制，但可以任何方 式根據離型片1之用途、基板片2之類型及其類似者選擇。 舉例而Q ®基板片2為紙基底時，基板片之基重較佳在 3〇 g/m2 至 200 g/m2 ’ 更佳 80 g/m2 至 14〇 g/m2 之範圍内。 當基板片2為合成樹脂膜時，基板片之厚度較佳在$ #⑺ 至500 # m，更佳15 # m至3〇〇 # m之範圍内。基板片2 可為連續帶形或滾筒形紙或膜。 當基板片2之基重小於3〇 g/m2或合成樹脂膜之厚度小 於5 "⑺時，因為基板片2較薄且基板片剛性較弱，戶^以 在隨後製程期間基板片2可能在處理及耐熱性方面較差。 另一方面，當基板片2之基重超過2〇〇 g/m2或基板片2之 厚度超過500 # m時，因為基板片2之單位面積重量增加， 201134658 所以離型片1可食$在名j㈤：存 …… 所纏繞之米數或運輸期間重 面弓丨起㈣。特定言之，當限制每個 :遵:重量限制缠繞片時，產生每個滾筒所纏繞之米i: 二：1題。此外’當對滾筒直徑無限制且每個滾筒纏繞所 *纏1“數時，產生每個滚筒之重量增加之問題。 =用紙基底作為基板片2肖；較佳可在紙基底背面 (亦即與塗覆有熱塑樹脂層之側相對之側）上進行防捲曲 處理。防捲曲處理防止其_狀y 〇 放 土板片2因熱、吸水或乾燥捲曲而 離型片1變形。藉由例如在紙基底背面塗覆合成樹脂， 諸如丙稀酸樹脂、聚苯乙稀樹脂及苯乙稀·丁二稀共聚物， 或養層聚烯烴樹脂膜及其類似物來施加防捲曲處理。 在此例示性具體實例之基板片2上提供基底屢印圖案 (參見圖3B)。基底壓印圖案之深度（亦即凸部分頂部斑 凹部分底部之間的距離）Μ較佳大於第二遷印圖案深度Μ (參見圖3B及3D) 〇當熱塑樹脂層3疊層於基板片2上 提供之基底壓印圖案之不規則外形上日寺，基底壓印圖案顯 現於熱塑樹脂;f 3表面上以提供第一壓印圖案。因此，預 先於基板Θ 2上提供對應於第—㈣圖案外形之基底壓印 圖案。 熱塑樹脂層 、藉由相對於形成合成皮革之樹脂展現極佳可離型性及 可塗覆性之樹脂提供熱塑樹脂層3,該樹脂之實例為聚烯烴 聚合物。聚烯烴聚合物之實例為α ·烯烴均聚物及共聚物。 α-婦經之實例為乙稀、丙烯 ' 卜丁稀、2甲基丁烯、卜 8 201134658 戍稀、2-甲基小戊烯、“己浠、2,二甲基小丁歸、2甲基 +己烯、4-甲基小戊稀、卜庚稀、2-曱基小己歸、3甲基 -1-己烯、2’2-二曱基+戊烯、3,3_二甲基小戊烯…二曱 基小戊烯、3·乙基小戊稀、2,2,3_三曱基小丁稀、！·辛料 2,2,4-三f基小辛稀。其中，乙稀、丙歸及^甲基+戊稀 聚合物尤佳。 熱塑樹脂層3之厚度及尺寸不受特別限制，但可以任 何方式根據離型片丨之用途及熱塑樹脂層3之類型選擇。 熱塑樹脂層3之厚度較佳在5心至2〇〇心：更佳 10 至100 μηι範圍内。當熱塑樹脂層3之厚户小於5PaPer, woodfree PaPer, impregnated PaPer, coat paper, coated paper, vegetable Paper, and glassine paper; Know film, such as polyethylene and polypropylene; vinyl film, such as polyene oxide polyvinylidene gas, polyvinyl alcohol, ethylene vinyl acetate copolymer and ethylene-vinyl alcohol copolymer; polyester resin film, such as poly pair Ethylene phthalate, poly(p-butylene dicarboxylate) and polyethylene naphthalate; and other s-ingering ruthenium films, such as polystyrene, acrylonitrile butadiene styrene copolymer, three Ethyl phthalocyanine, ceU〇phane and polycarbonate. Incidentally, the paper substrate is preferred in terms of heat resistance and thermoformability. Among them, kraft paper, wood-containing pulp paper, Daolin paper, and impregnated paper are preferred in terms of excellent heat resistance and dimensional stability. The thickness and size of the substrate sheet 2 are not particularly limited, but may be selected in any manner depending on the use of the release sheet 1, the type of the substrate sheet 2, and the like. For example, when the Q® substrate sheet 2 is a paper substrate, the basis weight of the substrate sheet is preferably in the range of 3 〇 g/m 2 to 200 g/m 2 ' more preferably 80 g/m 2 to 14 〇 g/m 2 . When the substrate sheet 2 is a synthetic resin film, the thickness of the substrate sheet is preferably in the range of $ #(7) to 500 # m, more preferably 15 #m to 3〇〇 #m. The substrate sheet 2 may be a continuous strip or roll paper or film. When the substrate sheet 2 has a basis weight of less than 3 〇g/m 2 or the thickness of the synthetic resin film is less than 5 " (7), since the substrate sheet 2 is thin and the substrate sheet is less rigid, the substrate sheet 2 may be used during the subsequent process. Poor in handling and heat resistance. On the other hand, when the basis weight of the substrate sheet 2 exceeds 2 μg/m 2 or the thickness of the substrate sheet 2 exceeds 500 # m, since the weight per unit area of the substrate sheet 2 increases, 201134658, the release sheet 1 is edible. Name j (five): save... The number of meters entangled or the heavy-duty bow during transportation (4). In particular, when each of the restrictions: according to the weight limit winding sheet, the rice entangled by each drum is produced: two: one title. In addition, when there is no limit to the diameter of the drum and each drum is wound by a number, the weight increase of each roller is caused. The paper substrate is used as the substrate sheet 2; preferably, it is on the back side of the paper substrate (ie, The anti-curl treatment is performed on the side opposite to the side coated with the thermoplastic resin layer. The anti-curl treatment prevents the release sheet 1 from being deformed by heat, water absorption or dry curling. For example, a synthetic resin such as an acrylic resin, a polystyrene resin, and a styrene-butadiene copolymer, or a polyolefin resin film and the like are applied to the back surface of the paper substrate to apply an anti-curl treatment. The substrate pattern 2 is provided on the substrate sheet 2 of this exemplary embodiment (see Fig. 3B). The depth of the substrate imprint pattern (i.e., the distance between the bottoms of the concave portions at the top of the convex portion) Μ is preferably larger than the second embossing Pattern depth Μ (see FIGS. 3B and 3D) 〇When the thermoplastic resin layer 3 is laminated on the irregular shape of the base embossed pattern provided on the substrate sheet 2, the base embossed pattern appears on the thermoplastic resin; f 3 Providing a first embossed pattern on the surface. Therefore, A substrate imprint pattern corresponding to the shape of the fourth (four) pattern is provided on the substrate Θ 2. The thermoplastic resin layer provides heat by a resin exhibiting excellent release property and coatability with respect to the resin forming the synthetic leather. Plastic resin layer 3, an example of the resin is a polyolefin polymer. Examples of the polyolefin polymer are α·olefin homopolymers and copolymers. Examples of α-women's women are ethylene, propylene, butadiene, 2 Base butene, Bu 8 201134658 戍 dilute, 2-methyl pentopentene, "hexidine, 2, dimethyl small dibutyl, 2 methyl + hexene, 4-methyl pentacene, bgg, 2-mercaptosylamine, 3methyl-1-hexene, 2'2-didecyl+pentene, 3,3-dimethylpentene, dinonylpentene, 3·ethyl Small pentacene, 2, 2, 3_ triterpene small dilute,! · Xin 2, 2, 4-tri-f-small sin. Among them, ethylene, propylene and ^methyl + pentene polymers are particularly preferred. The thickness and size of the thermoplastic resin layer 3 are not particularly limited, but may be selected in any manner depending on the use of the release sheet and the type of the thermoplastic resin layer 3. The thickness of the thermoplastic resin layer 3 is preferably in the range of 5 to 2 :: more preferably 10 to 100 μη. When the thickness of the thermoplastic resin layer 3 is less than 5
Mm時，由於薄，故可用於第二壓印圖案之設計較少，且熱 塑樹脂層無法形成統一厚度之膜。另—方自，當熱塑樹脂 層3之厚度超過200 ”時，由於使熔融樹脂固化需要長 時間’所以可能降低生產力，且可能掩埋第—壓印圖案。 第一壓印圖案、第二壓印圖案 由於在基板片2之基底壓印圖案上提供熱塑樹脂層3, 所以藉由與基底壓印圖帛1之不規Μ外形提供第一壓印 圖案。此時，第一壓印圖案之不規則外形的深度h2與基底 壓印圖案之不規則外形的深度h丨大致相同。 第二壓印圖案提供比第一壓印圖案更多的微小不規則 外形，且在具有第一壓印圖案之區域内與第一壓印圖案之 不規則外形一致。 第壓印圖案之不規則外形的深度h2較佳大於第二壓 印圖案之不規則外形的深度h3(參見圖3〇及31))。 201134658 離型片之製造方法 1之製造方法。 1 1、擠壓器1 2 其次，下文將參考隨附圖式描述離型片 圖2示意性展示離型片製造裝置丨〇。 離型片製造裝f 1〇包括第一壓印單元 及第二壓印單元13。 第-壓印單元印基板片2β第，單元u包括 第-壓印滾筒1U及第一壓力滾筒llbe第一壓印滾筒山 由金屬製成且其外圓周具有對應於第-壓印圖t (第_壓 印圖案之不規則外形在® 2中未示）之不規則外形。第一 壓力滾筒lib由橡膠製成，其外表面實質上平坦。 擠壓器1 2擠壓熱塑樹脂以塗覆熱塑樹脂於基板片2 上擠壓器1 2包括T字模《通過τ字模將熱塑樹脂擠壓至 基板片2上以便於其上疊層。 第二壓印單元13壓印熱塑樹脂層3。第二壓印單元13 包括第二壓印滾筒13a及第二壓力滾筒13b。第二壓印滾筒 13a由金屬製成且其外表面具有對應於第二壓印圖案之不 規則外形。向第二壓印滾筒丨3a内部供應冷卻水。因此，第 二壓印滾筒13a亦用作冷卻及固化疊層於基板片2上之熱塑 樹脂層3的冷卻滾筒。第二壓力滾筒13b由橡膠製成，其 外表面實質上平坦。 離型片1之製造步驟關於各別步驟中基板片2及熱塑 樹脂層3之截面於圖3A至3D中展示。 第一壓印步驟 第一壓印單元11之第一壓印滚筒lla及第一壓力滾筒 10 201134658 ub垂直相對安置。向離型片製造裝置ι〇中供應之基板片 2 (參見圖3 A ) f質上水平饋入’且夾於第一壓印滾筒… 與第一壓力滚筒nb之間。諸如所施加壓力及溫度之壓印 條件根據基板片2之材料及第一壓印滾筒Ua之不規則外形 確定。藉由蒸汽或熱空氣加熱滾筒表面之機構較佳於第二 壓印滾筒11 a内部之滾筒中提供。 將預先於第一壓印滾筒lla表面上提供之不規則外形 轉印於與第一壓印滾筒11a接觸之基板片2表面上（參見圖 3B )。不規則外形提供於熱塑樹脂層3表面上提供之第一 壓印圖案之基底壓印圖案。當提供基底壓印圊案時，較佳 加熱第一壓印滾筒lla表面以對基板片2施加熱。藉由在加 熱基底片2同時形成基底壓印圖案，可將基底壓印圖案之 不規則外形更清楚地轉印至基板片2上。 基板片2之製造步驟與壓印步驟可組合（亦即在線内 设備（inline equipment)中）。特定言之，離型片製造裝 置10中之第一壓印步驟可在基板片2之製造單元之後進行 以提供線内離型片製造裝置。使用該種線内設備，可提高 離型片1之製造效率。 舉例而言，當基板片2由紙基底製成時，可以線内製 程共同進行紙形成步驟及壓印步驟。 此時，紙形成方法不受限制，但紙漿均勻分散於水中 之紙材料（紙漿漿料）可例如於筒紙機（CyHnder paper maChine)、長網造紙機（Fourdrinier paper machine)、雙 罔k ’·’氏機（twin-wire paper machine )及單層斜網造紙機 201134658 (Single-layer inclined wire卿以邮也㈣中之單一—種 或其組合（多重形成）中供應。 可在紙基底經乾燥器處理之後，或者在紙基底半乾燥 時經乾燥H處理之前’例如在加熱紙基底的同時施加壓 印。在後種情況中，乾燥步驟必須在壓印後提供。 當紙基底為樹脂浸潰紙時，可在紙形成步驟期間藉由 她膠塗佈機（Slze press )及其類似物用樹脂浸潰紙，且可 在浸潰樹脂的同時施加壓印，隨後進行熱乾燥。欲浸潰之 樹脂不受限制’但適合使用SBR (苯乙稀·丁二稀橡膠）、 NBR(丙烯腈-丁二烯橡膠）、MBR (甲基丙烯酸甲酯·丁二 烯橡膠）、氣乙烯樹脂、丙烯酸系樹脂、乙酸乙烯酯樹脂、 EVA (乙烯·乙酸乙烯酯）樹脂、聚乙烯醇' 澱粉及其類似 物中之單 種或其組合。該樹脂可以水基乳液、水溶液 或有機溶劑溶液形式浸漬◦然而，就可加工性及安全性而 έ，水基乳液或水溶液較佳。用於浸潰之樹脂溶液中可另 外添加施膠劑（size agent)、蠟、交聯劑、著色劑及消 劑。 ’ 紙形成步驟及第一壓印步驟可於單一步驟中同時進 仃’且熱塑樹脂之疊層步驟及第二壓印步驟可在各別製裎 中進行。 當基板片2為樹脂膜材料時，樹脂片（膜材料）之擠 廢步驟與第一壓印步驟可在線内製程中共同進行。此時， 車乂佳可在第一壓印滾筒丨丨a中提供冷卻機構，使得自擠壓器 擠壓之炫融熱塑樹脂（亦即膜基底材料）得以冷卻，同時 12 201134658 轉印不規則外形。. 疊層步驟 自擠壓器、12之模擠壓熔融熱塑樹脂以便在已進行第— 壓印步驟之基板片2上疊層’且形成熱塑樹脂層3。： 熱塑樹脂層3與基板片2表面上提供之残料形 且提供第一壓印圖案（參見圖3c)。 諸如加熱溫度之擠壓器12之條件根據熱塑樹脂層 熱塑樹脂溶點及炫融流動速率設定。 第二壓印步驟 第二壓印單元13之第二壓印滾筒13a及第二壓力滾 13b—水平相對安置。基板片2(參見_ 3c)在進行疊層：驟 後貫質上向下饋入’且夾於第二壓印滾筒13a與第二壓力滾 筒13b之間。諸如所施加壓力及溫度之壓印條件根據熱 樹月曰之材料及第二壓印滾筒l 3a之不規則外形確定。 預先於第一麼印滾筒1 3a表面上提供之不規則外形轉 印於與第-壓印滾筒1 3a接觸之熱塑樹脂層3上，在此期間 使熱塑樹脂層3冷卻。轉印及冷卻提供第二壓印圖案（參 見圖3D)。第二壓印圖案沿第一壓印圖案之不規則外形形 成。 〆 因此，製造出離型片i。 其他步驟 藉由滾筒中之纏繞機（winding machine )(圖中未示、 纏繞進行第二壓印击明《你制、止夕Μ并丨w 丄 1步驟後製造之離型片。在使用前將經纏 繞離型片1切成與其應用相對應之尺寸。 13 201134658 合成皮革之製造方法 將諸如聚胺基曱酸酯樹脂及氣乙烯樹脂之合成皮革樹 脂塗覆於離型片1之熱塑樹脂層3表面上。乾燥及固化經 塗覆合成皮革樹脂後，經由黏著劑將底布（gr〇und fabric ) 附著於表面合成皮革樹脂上，將其乾燥並久置。隨後，剝 離離型片1，隨後提供合成皮革。合成皮革在自離型片丨剝 離後將帛Μ印圖案及第二壓印圖案轉印至熱塑樹脂層3 上。 順帶而言，可能不附著底布，而可能獨立使用所製造 之合成皮革樹脂層。 例示性具體實例之優勢 根據上述例示性具體實例，可獲得以下優勢。 (1)因4在離型#丨之熱塑樹脂層3表面上提供兩種 不同壓印圖案（亦即第一壓印圖案及第二壓印圖案），所 以可使用離型片丨製造紋理豐富的合成皮革，其具有習知 離型片無法提供之多種圖案。 (2 )因為離型片i之第—壓印圖案之不規則外形的深 度大於第二壓印圖案之不規則外形的深度，所以可清楚地 雕刻出兩種壓印圖案。 (3) 因為提供在具有第一壓印圖案之區域内與第一壓 印圖案之不規則外形—致的第二壓印圖案，所以相較於藉 由習知離型片製造者，絲型片可提供更接近天然皮革紋 理及木紋之圖案。 (4) 因為在離型；^丨之基板片2上提供基底壓印圖 14 201134658 案，所以顯現於熱塑樹脂層3表面上之第一壓印圖案係由 基底壓印圖案之不規則外形支撐。因此，即使在形成第二 壓印圖案時對第一壓印圖案施加熱及壓力，亦可防止第一 壓印圖案模糊。 具體貫例之修改 本發明範疇不限於上述例示性具體實例，而是包括如 下修改形式。 儘官對應於基板片2上基底壓印圖案之第一壓印圖案 在熱塑樹脂層3上經由基板# 2形成，但第一壓印圖案及 第二壓印圖案可在熱塑樹脂| 3丨直接形成，而不在基板 片2上形成基底壓印圖案。以上直接形成可藉由例如在疊 層熱塑樹脂層3後’在壓印期間使用預先具有不同的第一 及第二壓印圖案之壓印滾筒達成。 離型片1表面上之壓印圖案數目不限於兩#，而是可 能為三種或三種以上。在熱塑樹脂層3上提供更多數目之 壓印圖案相較於藉由兩種壓印圖案所提供者可更接近地仿 造天然皮革及其類似物之紋理。當例如欲提供三種壓印圖 案時’可在基板片2上提供第一壓印圖案之基底壓印圖案， 且可在熱塑樹脂層3上施加第二及第三壓印圖案。或者， 熱塑樹脂^ 3可為中間層與表面層疊層而成，第一壓印圖 案之基底壓印圖案可於基板Μ 2上形成，第二壓印圖案之 基底壓印圖案可在中間層上形成，且第三壓印圖案可在表 面層上形成。Λ時’各不規則外形之深度可較佳為"— 壓印圖案深度(第二璧印圖案深度）>(第三壓印圖案 15 201134658 深度）。 儘管在上述例示性具體實 不規則外形（亦即凹形及凸形 提供’但可能存在其他配置。 圖案。不規則外形之間隔及形 擬天然皮革及其類似物之組熊 例中第一及第二壓印圖案之 )以規則間隔實質上規則地 可隨機提供第一及第二壓印 狀可改變，以便更接近地模 0 可例如使用具有平板的平壓機（flatpress)而不使用壓 印滾筒進行壓該平板具有對應相印圖案之不規則外 形0 儘管在例示性具體實例中，第二壓印滾冑13a與第二壓 力滾筒Ub水平（亦即左右方向）相對安置，但第二壓印 滚筒13a與第二壓力滾筒13b亦可如第一壓印滾筒iu盥第 一壓力滾筒llb —樣垂直相對安置。在此配置中，在進行 第-壓印後，II由擠壓器1 2 »字熱塑樹脂疊層於基板片2 上，形成熱塑樹脂層3，隨後將其夾於第二壓印滚筒丨“與 第二壓力滾筒Bb之間，同時實質上水平饋入基板片2厂 此外，儘管在以上例示性具體實例中，與壓印滾筒 Ua、13a各別配對之壓力滾筒llb、13b由橡膠製成，但可 替代地根據基板片及熱塑樹脂片之材料使用金屬滚筒、合 成樹脂滾筒或金屬平台。 實施例 儘管以下將參考實施例詳細描述本發明，但應暸解本 發明範疇絕不會受該等實施例限制。 順帶而言’不規則外形之深度藉由表面粗糙度計 16 201134658 (surface roughness gauge)(由 Accretech (中國）有限公 司製造，型號：SURCOM480A)量測。 實施例1 使用具有1 20 g/m2基重之樹脂浸潰紙（由liNteC公 司製造’型號：FLEX-A )作為基板片。向以上例示性具體 實例中所述之離型片製造裝置中供應樹脂浸潰紙。在第一 壓印步驟中’在樹脂浸潰紙表面上形成基底壓印圖案，同 目守弟一壓印浪荀（由LINTEC公司製造，型號：HQ〗，具 有仿造一種牛皮之所謂的「犢牛皮」圖案）溫度設定為！ 3〇 °C。第一壓印滾筒表面上形成之不規則外形的深度為6〇 " m。樹脂浸潰紙上形成之基底壓印圖案之不規則外形的深度 為 60 # m。 其次，使用擠壓器，將聚丙烯（由SunA11_r有限公 司製造，PHA03 A )與低密度聚乙烯（由_八11〇職有限 公司製造，PH800C )之混合樹脂疊層於具有基底壓印圖案 之樹脂浸潰紙上。擠壓器溫度為請。c，且熱塑樹脂層厚度 為35 #m。此時’對應於基底壓印圖案之不規則外形之； -壓印圖案於熱塑樹脂層表面形成。帛一壓印圖 則外形的深度為60 # m。 在第二壓印步驟中， 丨丁哪〒$成第二壓印圖t，同時冷 由以上混合樹脂形成之孰塑招 …、塑树知層，第二壓印滾筒（由 UNTEC：公司製造，型號：R L由 丹虿访造一種牛皮之「佯 牛皮」圖案）之溫度設定為 C。因此，獲得具有兩種麼 印圖案（亦即犢牛皮圖案 種查 人丨丁卞反圓累）之離型片。第二 17 201134658 壓印滾筒表面上形成之不規則外形的深度為3〇 // m。第二 壓印圖案之不規則外形的深度為30 // m。 使用如此製造之離型片製造合成皮革。將聚胺基曱酸 6旨樹脂（由Suzhou finechemical ind.有限公司製造，型號： FB930 )塗覆於離型片之熱塑樹脂層表面上。乾燥經塗覆聚 胺基曱酸酯樹脂後’經由黏著劑（由Suzh〇u finechemical ind 有限公司製造，型號：FB7500 )將底布（由Zhejiang Hexin ind·有限公司製造，厚度：〇·55 mm)附著於聚胺基曱酸酯 樹脂表面上，將其乾燥並久置。隨後，剝離離型片獲得合 成皮革。在剝離離型片後，將熱塑樹脂層之第一壓印圖案 (犢牛皮圖案）及第二壓印圖案（仔牛皮圖案）轉印至合 成皮革上。 實施例2 以與實施例1相同之方式製造離型片及合成皮革，例 外之處為：將實施例1巾之熱塑樹脂改為聚甲基戊烯（由 Mitsui Chemicals公司製造，τρχ (註冊商標），型號： DX231);擠壓器溫度設定為29(Γ(：;纟第二遂印步鄉中所 用之壓印滚筒改為另—個第二壓印滾筒（由UNtEc公司製 造，型號：R-135，具有仿造牛皮，仿造山羊皮之「羊兰皮」 圖案）ϋ此，獲得在表面上具有兩種壓印圖案（亦即積 牛皮圖案及羊羔皮圖案）之離型片及合成皮革。 ’ 第一壓印滾筒表面上形成之不規則外形的深度為6〇 心樹脂浸潰紙上形成之基底壓印圖案之不規^ 度為60 // m。笛廊，向+ 〜的冰 U 第一壓印圖案之不規則外形的深度為6〇 18 201134658 m。第二壓印滾筒表面上形 m。第二壓印圖案之不規則 比較實施例1 , 成之不規則外形的深度為30 外形的深度為30以m。 β 以與實施例 1相同之方4制4 式製造離型片，例外之處為不 進行第-壓印步驟。第二壓印圖案的深度為3〇 p。以與 實施例i相同之方式製造合成皮革。因此，所製造之離型 片及合成皮革僅具有仔牛皮壓印圖案。 在實施例i及2之離型片表面上形成第一及第二壓印 圖案。此夕卜，提供在形成第—壓印圖案之區域内與第一壓 印圖案之不規則外形一致的第二壓印圖案。換言之，因為 具有較小深度之圖案在具有較大深度之另一圖案中形成， 所以可獲得之離型片相較於使用具有單一壓印圖案之離型 片製造之合成皮革（如比較實施例i中）可製造出具有更 豐苞紋理之合成皮革。實際上，於藉由實施例丨及2之離 型片製造之合成皮革表面上形成紋理較多之圖案。 產業利用性 本發明適用於離型片、離型片之製造方法及合成皮革 【圖式簡單說明】· 圖1為根據本發明之例示性具體實例之離型片的戴面 圖2為示意性展示根據例示性具體實例之離型 ^ 造方法的圖。 圖3為示意性展示根據例示性具體實例之離型片之製 造方法的圖，其中：圖3A展示第一壓印步驟前之基板片. 圖3B展示第一壓印步驟後之基板片；圖3C展示進行叠層 19 201134658 步驟後之疊層片；及圖3D展示第二壓印步驟後獲得之離型 片。 圖4A為根據相關技術之離型片之截面。 圖4B為根據另一相關技術之離型片之截面。 【主要元件符號說明】 1 :離型片 2 :基板片 3 :熱塑樹脂層 10:離型片製造裝置 1 1 :第一壓印單元 I 1 a :第一壓印滾筒 II b :第一壓力滾筒 1 2 :擠壓器 1 3 :第二壓印單元 13a :第二壓印滾筒 13b :第二壓力滾筒 h 1 :基底壓印圖案之不規則外形之深度 h2 :第一壓印圖案之不規則外形之深度 :第二壓印圖案之不規則外形之深度 20In the case of Mm, since it is thin, the design for the second embossed pattern is small, and the thermoplastic resin layer cannot form a film of uniform thickness. In addition, when the thickness of the thermoplastic resin layer 3 exceeds 200 Å, it takes a long time to cure the molten resin, so productivity may be lowered, and the first embossed pattern may be buried. The first embossed pattern, the second embossed pattern Since the printed pattern provides the thermoplastic resin layer 3 on the substrate imprint pattern of the substrate sheet 2, the first imprint pattern is provided by the irregular shape of the substrate imprint 帛 1. At this time, the first imprint pattern The depth h2 of the irregular shape is substantially the same as the depth h丨 of the irregular shape of the base imprint pattern. The second imprint pattern provides a slightly smaller irregular shape than the first imprint pattern, and has the first imprint The area of the pattern is consistent with the irregular shape of the first embossed pattern. The depth h2 of the irregular shape of the embossed pattern is preferably greater than the depth h3 of the irregular shape of the second embossed pattern (see FIGS. 3A and 31). 201134658 Manufacturing method of manufacturing method 1 of release sheet 1 1. Extruder 1 2 Next, the release sheet manufacturing apparatus will be schematically illustrated with reference to the accompanying drawings. Sheet manufacturing equipment f 1〇 includes the first The printing unit and the second embossing unit 13. The first embossing unit prints the substrate sheet 2β, the unit u includes the first impression cylinder 1U and the first pressure roller llbe. The first impression cylinder is made of metal and has an outer circumference. There is an irregular shape corresponding to the first embossing t (the irregular shape of the _ embossed pattern is not shown in о 2). The first pressure roller lib is made of rubber and its outer surface is substantially flat. The extruder 12 extrudes the thermoplastic resin to coat the thermoplastic resin on the substrate sheet 2. The extruder 1 2 includes a T-shaped mold. The thermoplastic resin is extruded onto the substrate sheet 2 by a zi-shaped mold to facilitate lamination thereon. The second imprint unit 13 imprints the thermoplastic resin layer 3. The second imprint unit 13 includes a second impression cylinder 13a and a second pressure cylinder 13b. The second impression cylinder 13a is made of metal and its outer surface has a corresponding The irregular shape of the second embossing pattern is supplied with cooling water to the inside of the second impression cylinder 3a. Therefore, the second impression cylinder 13a is also used to cool and cure the thermoplastic resin layer 3 laminated on the substrate sheet 2. Cooling roller. The second pressure roller 13b is made of rubber and its outer surface is substantially flat. Manufacturing Steps of the Pattern 1 The cross-section of the substrate sheet 2 and the thermoplastic resin layer 3 in the respective steps is shown in Figures 3A to 3D. The first imprinting step The first impression cylinder 11a of the first imprinting unit 11 and the first A pressure roller 10 201134658 ub is vertically disposed oppositely. The substrate sheet 2 supplied to the release sheet manufacturing device ι (see Fig. 3A) f is horizontally fed in and clamped to the first impression cylinder... with the first pressure The embossing conditions between the rollers nb, such as the applied pressure and temperature, are determined according to the material of the substrate sheet 2 and the irregular shape of the first impression cylinder Ua. The mechanism for heating the surface of the drum by steam or hot air is preferably second. The inside of the cylinder of the impression cylinder 11a is provided. The irregular shape previously provided on the surface of the first impression cylinder 11a is transferred onto the surface of the substrate sheet 2 which is in contact with the first impression cylinder 11a (see Fig. 3B). The irregular shape provides a base imprint pattern of the first embossed pattern provided on the surface of the thermoplastic resin layer 3. When the substrate imprinting is provided, it is preferable to heat the surface of the first impression cylinder 11a to apply heat to the substrate sheet 2. By forming the substrate imprint pattern while heating the substrate sheet 2, the irregular shape of the substrate imprint pattern can be more clearly transferred onto the substrate sheet 2. The manufacturing steps of the substrate sheet 2 can be combined with the imprinting step (i.e., in inline equipment). Specifically, the first imprinting step in the release sheet manufacturing apparatus 10 can be performed after the manufacturing unit of the substrate sheet 2 to provide an in-line release sheet manufacturing apparatus. By using such an in-line device, the manufacturing efficiency of the release sheet 1 can be improved. For example, when the substrate sheet 2 is made of a paper substrate, the paper forming step and the embossing step can be carried out collectively in the in-line process. At this time, the paper forming method is not limited, but the paper material (pulp slurry) in which the pulp is uniformly dispersed in water can be, for example, a CyHnder paper maChine, a Fourdrinier paper machine, a double 罔k ' · Twin-wire paper machine and single-layer inclined paper machine 201134658 (Single-layer inclined wire is supplied in a single type or a combination (multiple form) in the mail (4). After the dryer treatment, or before the paper substrate is semi-dried, before the drying H treatment, 'for example, while the paper substrate is heated, embossing is applied. In the latter case, the drying step must be provided after the embossing. When the paper substrate is resin dipped When the paper is broken, the paper may be impregnated with a resin by a glue coater (Slze press) or the like during the paper forming step, and imprinting may be applied while impregnating the resin, followed by thermal drying. The resin is not limited 'but is suitable for SBR (styrene-butadiene rubber), NBR (acrylonitrile-butadiene rubber), MBR (methyl methacrylate-butadiene rubber), gas-vinyl resin ,acrylic acid a single or a combination of a resin, a vinyl acetate resin, an EVA (ethylene vinyl acetate) resin, a polyvinyl alcohol 'starch, and the like. The resin may be impregnated in the form of a water-based emulsion, an aqueous solution or an organic solvent solution. In terms of processability and safety, a water-based emulsion or an aqueous solution is preferred. A size agent, a wax, a crosslinking agent, a coloring agent, and a reducing agent may be additionally added to the resin solution for impregnation. 'The paper forming step and the first imprinting step can be simultaneously carried out in a single step' and the laminating step of the thermoplastic resin and the second imprinting step can be carried out in separate processes. When the substrate sheet 2 is a resin film material When the step of squeezing the resin sheet (film material) and the first embossing step can be performed together in the in-line process, at this time, the rut can provide a cooling mechanism in the first impression cylinder 丨丨a, so that the self-squeezing The squeezing of the thermoplastic resin (that is, the film substrate material) is cooled, and the irregular shape is transferred at the same time. 12 201134658. The lamination step is performed by extruding the 12-mold die to melt the thermoplastic resin so that Perform the first - imprint The substrate sheet 2 of the step is laminated 'and the thermoplastic resin layer 3 is formed.: The thermoplastic resin layer 3 and the residue sheet provided on the surface of the substrate sheet 2 are provided and provide a first embossed pattern (see Fig. 3c). The conditions of the extruder 12 are set according to the melting point of the thermoplastic resin layer of the thermoplastic resin layer and the flow rate of the glaze. The second imprinting step is performed by the second impression cylinder 13a and the second pressure roller 13b of the second imprinting unit 13 The substrate sheet 2 (see _3c) is fed in a stepwise manner: a stepwise feed down and is sandwiched between the second impression cylinder 13a and the second pressure cylinder 13b. The embossing conditions such as the applied pressure and temperature are determined according to the material of the heat tree and the irregular shape of the second impression cylinder 13a. The irregular shape provided on the surface of the first impression cylinder 13a is previously transferred onto the thermoplastic resin layer 3 in contact with the first impression cylinder 13a, during which the thermoplastic resin layer 3 is cooled. Transfer and cooling provide a second embossing pattern (see Figure 3D). The second embossed pattern is formed along an irregular shape of the first embossed pattern. 〆 Therefore, the release sheet i is produced. The other steps are carried out by a winding machine in the drum (not shown, entangled and subjected to a second embossing to strike the release sheet manufactured by the method of "made by you, 止夕Μ and 丨w 丄1". Before use The wound release sheet 1 is cut into a size corresponding to its application. 13 201134658 Method for producing synthetic leather A synthetic leather resin such as polyamino phthalate resin and vinyl chloride is applied to the thermoplastic sheet of the release sheet 1 On the surface of the resin layer 3. After drying and solidifying the coated synthetic leather resin, the ground fabric (g〇und fabric) is attached to the surface synthetic leather resin via an adhesive, dried and left for a long time. Subsequently, the release sheet is peeled off. 1. Synthetic leather is then provided. The synthetic leather is transferred onto the thermoplastic resin layer 3 after peeling off the release sheet. By the way, the base fabric may not be attached, and may The synthetic leather resin layer produced is used independently. Advantages of Exemplary Embodiments According to the above illustrative specific examples, the following advantages can be obtained: (1) Since 4 provides two different kinds on the surface of the thermoplastic resin layer 3 of the release type #丨Imprint (that is, the first embossing pattern and the second embossing pattern), so that the textured sheet can be used to produce a texture-rich synthetic leather having various patterns that are not provided by conventional release sheets. (2) Because of the release sheet The thickness of the irregular shape of the embossed pattern is greater than the depth of the irregular shape of the second embossed pattern, so that the two embossed patterns can be clearly engraved. (3) Since the first embossed pattern is provided The second embossed pattern in the region and the irregular shape of the first embossed pattern, so that the silk sheet can provide closer to the natural leather texture and wood grain than by the conventional release sheet manufacturer. (4) Since the substrate imprinting pattern 14 201134658 is provided on the substrate sheet 2 of the release type, the first imprint pattern appearing on the surface of the thermoplastic resin layer 3 is not imprinted by the substrate. The regular shape is supported. Therefore, even if heat and pressure are applied to the first embossed pattern when the second embossed pattern is formed, the first embossed pattern can be prevented from being blurred. The specific scope of the invention is not limited to the above exemplified specifics. Instance, but The first embossed pattern corresponding to the substrate embossed pattern on the substrate sheet 2 is formed on the thermoplastic resin layer 3 via the substrate #2, but the first embossed pattern and the second embossed pattern can be The thermoplastic resin is directly formed without forming a base embossed pattern on the substrate sheet 2. The above direct formation can be performed by, for example, after laminating the thermoplastic resin layer 3, using a different first in the embossing period. The impression cylinder of the second imprint pattern is achieved. The number of imprint patterns on the surface of the release sheet 1 is not limited to two #, but may be three or more. A larger number of imprints are provided on the thermoplastic resin layer 3. The pattern can more closely mimic the texture of natural leather and the like compared to those provided by the two embossed patterns. The first embossed pattern can be provided on the substrate sheet 2 when, for example, three embossing patterns are to be provided. The substrate is imprinted, and the second and third imprint patterns are applied on the thermoplastic resin layer 3. Alternatively, the thermoplastic resin 3 may be formed by laminating an intermediate layer and a surface, a base imprint pattern of the first imprint pattern may be formed on the substrate crucible 2, and a base imprint pattern of the second imprint pattern may be in the intermediate layer Formed thereon, and the third embossed pattern can be formed on the surface layer. The depth of each irregular shape may be preferably "- embossed pattern depth (second embossed pattern depth)> (third embossed pattern 15 201134658 depth). Although in the above-described exemplary concrete irregular shape (ie, concave and convex shape provided, there may be other configurations. Patterns, irregular shape spacing and the formation of natural leather and the like of the group of bears first and The second embossing pattern can be randomly provided at regular intervals, and the first and second embossing shapes can be randomly changed so as to be closer to the dies 0. For example, a flat press having a flat plate can be used without using a pressure. The printing cylinder is pressed to have an irregular outer shape corresponding to the phase printing pattern. Although in the exemplary embodiment, the second embossing roller 13a and the second pressure roller Ub are disposed horizontally (ie, the left and right direction), but the second The impression cylinder 13a and the second pressure roller 13b may also be vertically opposed as the first impression cylinder iu 盥 first pressure roller 11b. In this configuration, after the first-imprinting, II is laminated on the substrate sheet 2 by the extruder 1 2 -word thermoplastic resin to form a thermoplastic resin layer 3, which is then sandwiched between the second impression cylinders.丨 "between the second pressure roller Bb and substantially horizontally feeding into the substrate sheet 2, in addition, although in the above exemplary embodiment, the pressure rollers 11b, 13b respectively paired with the impression cylinders Ua, 13a are made of rubber It is made, but alternatively, a metal drum, a synthetic resin drum or a metal platform is used depending on the material of the substrate sheet and the thermoplastic resin sheet. Embodiments Although the present invention will be described in detail below with reference to the embodiments, it should be understood that This embodiment is limited by the fact that the depth of the irregular shape is measured by a surface roughness gauge 16 201134658 (surface roughness gauge (manufactured by Accretech (China) Co., Ltd., model: SURCOM480A). A resin-impregnated paper having a basis weight of 1 20 g/m 2 (manufactured by LiNteC Co., Ltd. model: FLEX-A) was used as a substrate sheet. The resin was supplied to the release sheet manufacturing apparatus described in the above exemplary embodiments. Knocking paper. In the first imprinting step, 'the base imprint pattern is formed on the surface of the resin impregnated paper, and the same is the same as the embossed wave (made by LINTEC, model: HQ), which has the imitation of a kind of cowhide. The "犊牛皮" pattern) temperature is set to! 3〇 °C. The irregular shape formed on the surface of the first impression cylinder has a depth of 6 〇 " m. The irregular shape of the base embossed pattern formed on the resin impregnated paper has a depth of 60 # m. Next, a mixed resin of polypropylene (manufactured by SunA11_R Co., Ltd., PHA03 A) and low-density polyethylene (manufactured by _8 11 〇, Ltd., PH800C) was laminated on a substrate having an imprint pattern using an extruder. The resin is impregnated on the paper. The extruder temperature is please. c, and the thickness of the thermoplastic resin layer is 35 #m. At this time, 'corresponds to the irregular shape of the base embossed pattern; - the embossed pattern is formed on the surface of the thermoplastic resin layer. The embossed image has a depth of 60 # m. In the second imprinting step, the crucible is made into the second imprint t, and the cold is formed by the above mixed resin. The plastic stamping layer, the second impression cylinder (manufactured by UNTEC: company) , Model: RL is set by C. Tanjung to create a cowhide "佯" pattern with a temperature of C. Therefore, a release sheet having two kinds of stencil patterns (i.e., 犊 图案 图案 ) ) Second 17 201134658 The irregular shape formed on the surface of the impression cylinder has a depth of 3 〇 // m. The irregular shape of the second embossed pattern has a depth of 30 // m. Synthetic leather is produced using the release sheet thus produced. A polyamino phthalic acid 6 resin (manufactured by Suzhou Fine Chemical Ind. Co., Ltd., model: FB930) was applied to the surface of the thermoplastic resin layer of the release sheet. After drying the coated polyamine phthalate resin, the base fabric (manufactured by Zhejiang Hexin ind Co., Ltd., thickness: 〇·55 mm) was passed through an adhesive (manufactured by Suzh〇u Finechemical Ind Co., Ltd., model: FB7500). Adhered to the surface of the polyurethane phthalate resin, dried and left for a long time. Subsequently, the release sheet was peeled off to obtain a synthetic leather. After the release sheet is peeled off, the first embossed pattern (犊 图案 图案 pattern) and the second embossed pattern (Bag cowhide pattern) of the thermoplastic resin layer are transferred onto the synthetic leather. Example 2 A release sheet and a synthetic leather were produced in the same manner as in Example 1 except that the thermoplastic resin of Example 1 was changed to polymethylpentene (manufactured by Mitsui Chemicals Co., Ltd., τρχ (registered) Trademark), model: DX231); extruder temperature set to 29 (Γ (:; 压 纟 纟 纟 乡 乡 乡 乡 改为 改为 改为 改为 改为 改为 改为 改为 改为 改为 改为 压 压 压 压 压 压 压 压 压 压 压 压 压 压 压 压 压 压 压 压 压:R-135, with imitation cowhide, mimicking the "salt skin" pattern of goatskin), this gives a release sheet and composite with two embossed patterns (ie, cowhide pattern and lamb skin pattern) on the surface. Leather. 'The irregular shape formed on the surface of the first impression cylinder is 6 〇 树脂 树脂 树脂 树脂 树脂 树脂 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 U The irregular shape of the first embossed pattern has a depth of 6〇18 201134658 m. The surface of the second impression cylinder has a shape of m. The irregularity of the second embossed pattern is compared with the embodiment 1, and the depth of the irregular shape is 30 The depth of the profile is 30 m. β is the same as the embodiment 1 A release sheet was produced in the same manner, except that the first-embossing step was not performed. The depth of the second embossed pattern was 3 〇p. Synthetic leather was produced in the same manner as in Example i. The type sheet and the synthetic leather have only the embossed pattern of the velvet. The first and second embossing patterns are formed on the surfaces of the release sheets of Examples i and 2. Further, in the region where the first embossed pattern is formed a second embossed pattern conforming to the irregular shape of the first embossed pattern. In other words, since the pattern having a smaller depth is formed in another pattern having a larger depth, the obtained release sheet is used as compared with the use A synthetic leather made from a release sheet having a single embossed pattern (as in Comparative Example i) can produce a synthetic leather having a more sturdy texture. In fact, it is manufactured by the release sheet of Examples 2 and 2 A pattern having a large texture formed on the surface of the synthetic leather. Industrial Applicability The present invention is applicable to a production method of a release sheet, a release sheet, and a synthetic leather. [FIG. 1 is an exemplary embodiment according to the present invention. Release Figure 2 is a view schematically showing a release molding method according to an exemplary embodiment. Figure 3 is a view schematically showing a method of manufacturing a release sheet according to an exemplary embodiment, wherein: Figure 3A shows a substrate sheet before an imprinting step. FIG. 3B shows the substrate sheet after the first imprinting step; FIG. 3C shows the lamination sheet after the lamination step 19 201134658; and FIG. 3D shows the second imprinting step. Fig. 4A is a cross section of a release sheet according to the related art. Fig. 4B is a cross section of a release sheet according to another related art. [Description of main components] 1 : Release sheet 2: Substrate sheet 3: Thermoplastic Resin layer 10: release sheet manufacturing apparatus 1 1 : first imprint unit I 1 a : first impression cylinder II b : first pressure cylinder 1 2 : extruder 1 3 : second imprint unit 13a: The second impression cylinder 13b: the second pressure roller h 1 : the depth h2 of the irregular shape of the base embossed pattern: the depth of the irregular shape of the first embossed pattern: the depth of the irregular shape of the second embossed pattern 20