TW201002507A

TW201002507A - Method of manufacturing transferred resin sheet and device for manufacturing transferred resin sheet

Info

Publication number: TW201002507A
Application number: TW98104965A
Authority: TW
Inventors: Hisanori Oku; Masanori Tamada
Original assignee: Sumitomo Chemical Co
Priority date: 2008-02-21
Filing date: 2009-02-17
Publication date: 2010-01-16

Abstract

Provided is a method of manufacturing a transferred resin sheet by sandwiching a continuous resin sheet, continuously extruded in a heated and melted state through a die, between a first press roll and a second press roll, cooling the continuous resin sheet in a state in close contact with the second press roll, and thereafter sandwiching the continuous resin sheet between the second press roll and a transfer roll adjacent to the second press roll to transfer a surface shape of the transfer roll onto the continuous resin sheet, a plurality of concave grooves being formed in a surface of the transfer roll, and in a cross sectional shape thereof, a groove bottom interval P between bottoms of adjacent concave grooves being set to 10 μ m to 500 μm and a groove depth H of the concave groove being set to 3 μ m to 500 μm. Thereby, a transferred resin sheet onto which a surface shape of a transfer roll can be transferred accurately and quickly can be manufactured.

Description

201002507 六、發明說明：【發明所屬之技術領域】本發明係關於轉印樹脂薄片的製造方法，詳細而言，係關於將轉印模的表面形狀予以轉印之樹脂薄片的製造方法。【先前技術】以往，關於將轉印模的表面形狀轉印之樹脂薄片的製造方法’於專利文獻1[日本特開平9-11328號公報]中 ’揭示有一種如第5圖所示般，在加熱熔融狀態下將樹脂從模具32連續地擠壓出所製得之連續樹脂薄片31，夾入於第一按壓輥33與第二按壓輥34之間，藉此將該轉印輥的表面形狀轉印至連續樹脂薄片之方法。 [專利文獻1]日本特開平9-1 1328號公報【發明內容】然而，以往之轉印樹脂薄片的製造方法中，爲了高精度地將轉印輥的表面形狀轉印至連續樹脂薄片，必須降低轉印速度，所以並不能視爲生產性佳之方法。本發明之目的在於提供一種能夠以局精度且迅速地將轉印輥的表面形狀予以轉印之轉印樹脂薄片的製造方法及轉印樹脂薄片的製造裝置。本發明係關於上述轉印樹脂薄片的製造方法，爲將在加熱熔融狀態下從模具所連續擠壓出之連續樹脂薄片， -5- 201002507 夾入於第一按壓輥與第二按壓輥之間，在密接於第二按壓輥之狀態下使連續樹脂薄片冷卻，然後夾入於第二按壓輥與鄰接於該第二按壓輥之轉印輥之間，藉此將該轉印輥的表面形狀轉印至連續樹脂薄片之轉印樹脂薄片的製造方法，其特徵爲：於轉印輥的表面形成有複數個凹槽，於該剖面形狀，鄰接之凹槽的槽底間隔P設定爲1〇μιη~500μπι，凹槽的槽深度Η設定爲3μιη~5 00μιη。本發明之較佳型態爲轉印樹脂薄片的製造方法，其中，與轉印輥密接之面之連續樹脂薄片的表面溫度，爲較連續樹脂薄片之樹脂的維氏（Vicat)軟化點還高20°C〜60 °C之溫度。本發明之其他的較佳型態爲轉印樹脂薄片的製造方法，其中，凹槽的槽底間隔P設定爲ΙΟμηι〜200μιη，凹槽的槽深度Η設定爲3μιη〜200μηι。本發明之其他的較佳型態爲轉印樹脂薄片的製造方法，其中，於轉印輥的表面，形成有複數個剖面形狀爲大致半圓形狀之大致半圓凹槽，相鄰之大致半圓凹槽的槽底間隔Ρ設定爲1〇μιη〜2 00μιη，大致半圓凹槽的槽深度Η設定爲 3μιη~200μιη。本發明之另外的較佳型態爲轉印樹脂薄片的製造方法，其中，於轉印輥的面內，形成有複數個剖面形狀爲三角形之三角形凹槽，該三角形凹槽的底部槽角設定爲 4 0〜160度，鄰接之三角形凹槽的槽底間隔Ρ設定爲ΙΟμιη 〜2 0 0 μ m。 201002507 此外，本發明之其他的較佳型態爲轉印樹脂薄片的製造方法，其中，於轉印輥的表面形成有粗糙面，該粗糙面的形狀，其算術平均粗糙度Ra設定爲Ιμηι〜ΙΟμηι，粗糙面之凹凸的十點平均粗糙度Rz設定爲5μιη〜50μιη。本發明之其他的較佳型態爲轉印樹脂薄片的製造方法，其中，凹槽的槽底間隔Ρ設定爲超過2 0 0 μιη以上且爲500μιη以下，凹槽的槽深度Η設定爲3μιη〜5 00 μϊη。本發明之其他的較佳型態爲轉印樹脂薄片的製造方法，其中凹槽，其剖面形狀爲大致半圓形狀。本發明之其他的較佳型態爲轉印樹脂薄片的製造方法，其中凹槽，其剖面形狀爲三角形，該三角形的頂角爲 40° 〜160、本發明之其他的較佳型態爲轉印樹脂薄片的製造方法，其中，上述樹脂爲聚丙烯樹脂，凹槽的槽底間隔Ρ設定爲10μιη~200μϊη，凹槽的槽深度Η設定爲3μπι〜5 00μηι。此外，本發明係關於轉印樹脂薄片的製造裝置，爲包含：連續地擠壓出加熱熔融狀態的樹脂來製造連續樹脂薄片之模具；及按壓輥；以及藉由將連續樹脂薄片夾入於與該按壓輥之間，而將表面形狀轉印至連續樹脂薄片之轉印輥，其特徵爲：轉印輥，係於該表面形成有複數個凹槽，凹槽的槽底間隔Ρ設定爲ΙΟμιη〜500μπι，凹槽的槽深度 Η 設定爲 3μιη~5 00μηι。上述製造裝置的較佳型態，是一種凹槽的剖面形狀爲三角形，該三角形的頂角爲40°〜160°之製造裝置。 -7- 201002507 根據本發明的製造方法或製造裝置，能夠以高精度且迅速地將轉印輥的表面形狀轉印至樹脂薄片，而能夠製造出精度及生產性優良之轉印樹脂薄片。本發明之上述及其他目的、特徵、狀況及優點，可從與附加圖面關聯所能夠理解之關於本發明的詳細說明中更加明瞭。【實施方式】以下說明本發明之製造方法。在此，第1圖爲模式性顯示表面形狀轉印樹脂薄片的製造裝置。此製造裝置，係包含：連續地擠壓出加熱熔融狀態的樹脂以製得連續樹脂薄片11之模具12;及一對的按壓輥13、14;以及轉印輥15，藉由將上述連續樹脂薄片夾入於一方的按壓輥 1 4與和此鄰接之轉印輥1 5之間，而將轉印輥1 5的表面形狀轉印至上述連續樹脂薄片1 1。與上述轉印輥密接之面之連續樹脂薄片的表面溫度，較理想爲較上述連續樹脂薄片之樹脂的維氏軟化點還高20°C〜60°C之溫度。在此’ 本發明中，所謂與上述轉印輥密接之面之連續樹脂薄片的表面溫度，是指在接觸於轉印輥之前方從密接點往薄片搬運相反方向爲50mm處之密接於轉印輥之一側的薄片表面溫度。此表面溫度可使用紅外線輻射溫度計來測定。 <樹脂材料> 本發明之製造方法所使用的樹脂，可使用藉由加熱 201002507 進行硬化之熱硬化性樹脂，但一般係使用藉由加熱而成爲熔融狀態之熱可塑性樹脂。例如有苯乙烯系樹脂、丙烯酸系樹脂、聚乙烯樹脂、聚丙烯樹脂、環狀聚烯烴聚合物樹脂、丙烯腈-丁二烯-苯乙烯（ABS)樹脂、聚對苯二甲酸乙二酯（PET )樹脂、聚碳酸酯（pc)樹脂等。此外，當運用聚丙嫌樹脂作爲樹脂時，在寬廣範圍的槽底間距p或槽深度Η的轉印模中，尤其可獲得良好的轉印率。上述樹脂亦可添加光擴散劑、紫外線吸收劑、熱安定劑、防帶電劑等添加劑。光擴散劑可爲無機系光擴散劑或是有機系光擴散劑。無機系光擴散劑，例如有碳酸鈣、硫酸鋇、氧化鈦、羥化鋁、二氧化矽、無機玻璃、滑石、雲母、白碳、氧化鎂、氧化鋅等之無機化合物的粒子。用以提升分散性之無機系光擴散劑，可藉由脂肪酸等的表面處理劑進行表面處理。有機系光擴散劑，例如有苯乙烯系聚合物粒子、丙嫌酸系聚合物粒子、矽氧烷系聚合物粒子等之有機化合物的粒子。當添加光擴散劑時，所添加之光擴散劑的折射率與樹脂的折射率之差的絕對値，就光擴散效果的觀點來看， —般爲0.02以上，就所製得之表面形狀轉印樹脂薄片之光透射性的觀點來看’ 一般爲0.20以下，較理想爲〇.! 3 以下。添加光擴散劑於樹脂所製造出之表面形狀轉印樹脂薄片，可用作爲光擴散板。 -9- 201002507 <樹脂的擠壓成型> 如第1圖所示，用以將連續樹脂薄片1 1從擠壓機1 〇擠壓出之模具12，可使用與一般擠壓成形法中所使用者爲相同之金屬製的T型模具等。在加熱熔融狀態下從模具 12擠壓出樹脂時，可使用一般擠壓成形法中所使用之擠壓機。擠壓機可爲單軸擠壓機或雙軸擠壓機。樹脂於擠壓機內被加熱，並在熔融狀態被運送至模具進行擠壓。在加熱熔融狀態下從模具擠壓出樹脂時，可將1種樹脂供應至模具，並以單層進行擠壓，或是供應2種以上的樹脂，在層合的狀態下進行共擠壓。在層合的狀態下將 2種以上的樹脂予以共擠壓時，例如可使用2種3層分配型的分層器（圖中未顯示），並經由此分層器將樹脂供應至模具。從模具所擠壓出之樹脂，一般係擠壓成連續的薄片狀而成爲連續樹脂薄片11。連續樹脂薄片11的厚度，可因應所製得之薄片的用途而適當地調整，例如當用作爲光擴散板時，可形成爲 1 · 0 m m 〜3.0 m m 〇 <壓輥成形> ±述從模具所連續擠壓出之連續樹脂薄片1 1，係同時夾入於第〜按壓輥！3及第二按壓輥14。第一按壓輥及第二按壓輕的材料，一般係使用由不鏽鋼、鋼材等金屬所構成之金屬製壓輕，該直徑一般爲100mm〜500mm。當使用金屬製壓輥作爲上述第一按壓輥及第二按壓 -10- 201002507 輥時，該表面可施以鍍鉻、鍍銅、鍍鎳、鍍鎳磷等之電鍍處理。此外，按壓輥的表面可爲鏡面，若不需高精度地進行轉印，則亦可構成爲施以壓印等的凹凸後之轉印面。本發明中，可附加設置用以移送連續樹脂薄片之驅動輥或是用以成形之壓輥，該壓輥可設置於模具12與上述第一按壓輥13、第二按壓輥14之間，當上述連續樹脂薄片11接觸於第二按壓輥14時，可設置爲與該第二按壓輥1 4鄰接。在此，以第一按壓輥13與第二按壓輥14所按壓之連續樹脂薄片1 1，係在密接於第二按壓輥1 4的表面之狀態下，隨著第二按壓輥1 4的旋轉而被搬運至鄰接的轉印輥1 5。該連續樹脂薄片11接觸於第一按壓輥13及第二按壓輥14，並且在附著於第二按壓輥14的表面而旋轉之間被冷卻，此外，並藉由來自外部氣溫的冷卻，而使溫度從模具所擠壓出之加熱熔融狀態下降。 <轉印輥> 上述連續樹脂薄片1 1，係在第二按壓輥1 4與轉印輥 1 5之間再次被按壓，從第二按壓輥1 4剝離並附著於轉印輥15的表面，並且隨著轉印輥15的旋轉而被搬運。此時，當連續樹脂薄片1 1的表面溫度高，即使不藉由第二按壓輥1 4與轉印輥1 5予以按壓，連續樹脂薄片1 1亦可充分地附著於轉印輥1 5時，第二按壓輥1 4與轉印輥1 5之 -11 - 201002507 間，可較連續樹脂薄片的厚度開啓地更大一些。轉印輥被壓抵於連續樹脂薄片的表面，而將該表面形狀以相反模的方式轉印至連續樹脂薄片。 <轉印輥的表面形狀1 > 於上述轉印輥的表面形成有複數個凹槽，於該剖面形狀，以鄰接之凹槽的槽底間隔（反轉之樹脂薄片的頂端間隔p，以下有稱爲間距間隔p或間距p時）所定義之間距P，係設定爲ΙΟμίΏ〜2 00μιη，凹槽的槽深度Η設定爲 3 μ m〜2 0 0 μ m。在此，間距P亦包含槽底間隔非一定時。第2圖爲顯示，藉由形成有複數個上述轉印輥的表面上所形成之凹槽的剖面形狀爲大致半圓形狀之大致半圓凹槽，所轉印之連續樹脂薄片表面的剖面形狀之槪略圖。鄰接之大致半圓凹槽彼此的槽底間隔，係設定爲1 〇μπι ~200μιη，上述大致半圓凹槽的槽深度 Η 設定爲 3μπι〜200μηι 〇當轉印輥的間距間隔ρ未滿1 opm時，其製造較爲困難，所以較理想爲3 0 μηι以上。另一方面，當間距間隔Ρ 超過2 0 0 μ m時，反轉之樹脂薄片的表面變得粗糙，使外觀變差。此外，上述大致半圓凹槽的槽深度 Η在 3 μπι~2 0 0 μηι的範圍中，容易進行轉印輥的製作，一般爲 ΙΟμιη以上，較理想爲 50μιη以上。另一方面，當上述大致半圓凹槽的槽深度Η超過2〇〇μιη時，乃不利於高精度地轉印表面形狀。 -12- 201002507 較理想爲，於上述轉印輥的面內，形成有複數個剖面形狀爲三角形之三角形凹槽，該三角形凹槽的側壁上所形成之底部槽角設定爲40〜160度，鄰接之三角形凹槽的間距間隔P設定爲1 〇μιη〜200μιη。上述轉印輥表面的凹槽，例如爲平行地設置有多數個V槽之形狀。V槽的底部槽角一般爲160°以下，就容易製作之觀點來看’ 一般爲40' 以上。V槽的間距間隔Ρ，就容易製作轉印輥之觀點來看，一般爲ΙΟμηα以上，較理想爲50μιη以上。較理想爲，於上述轉印輥的表面形成有粗糙面’該粗糙面的形狀，其算術平均粗糙度Ra設定爲1〜1 0μηι ’上述粗糙面之凹凸的十點平均粗糙度RZ設定爲5-5 Ομπι。 <轉印輥的表面形狀2 > 本發明中，上述轉印輥之凹槽的間距間隔Ρ，就容易製作轉印輥的表面形狀之觀點來看，一般爲1 Ομηι以上，較理想爲5 0 μιη以上。但本發明之其他的較佳型態中，當凹槽的間距間隔 Ρ 爲 50μιη〜500μιη ，較理想爲 200μιη〜5〇〇μιη時，乃較爲適合，在如此的間距間隔Ρ時，凹槽的槽深度較理想爲3μιη〜50 Ομηι。當滿足此間距間隔Ρ及槽深度時，即使連續樹脂薄片未滿足後述之關於維氏軟化點的表面溫度，亦可連續地將轉印輥的形狀賦予至連續樹脂薄片。尤其當上述間距間隔Ρ爲1 0μιη~200μηι時，即使使用聚丙烯樹脂作爲樹脂，亦能夠製造出轉印模之形狀的轉印效率佳之連續樹脂薄片。 -13- 201002507 在此其他的較佳型態中，上述轉印模的形狀，例如有第2圖所示之大致半圓形狀的大致半圓凹槽，鄰接之大致半圓凹槽的間距間隔P時，就容易製作轉印輥之觀點來看，一般爲1 0 μιη以上’較理想爲5 0 μπι以上，間距間隔 Ρ爲50 μηι〜500 μιη的範圍中，乃較爲適合。此外，當滿足該間距間隔Ρ時，上述大致半圓凹槽的槽深度Η在3 μιη 〜500μιη的範圍中時，可適當地轉印表面形狀。本發明中，上述連續樹脂薄片，如第1圖所示，由於在經由第二按壓輥1 4後被供應至轉印輥而賦予表面形狀，所以在此連續薄片的製造方法中，可將凹槽深度的上限擴大至500μιη 爲止上述所謂大致半圓，如第2圖所示，並不限定於剖面爲半圓弧狀之形狀，例如第3圖所示，亦可爲使圓柱體平行於該軸線，且在以不含該軸線之平面來切斷時之剖面的任一個爲弧狀之形狀者，或者是剖面爲半橢圓弧狀，或該半橢圓弧狀的一部分爲扁平彎曲狀等之形狀。上述所謂「大致半圓凹槽」，亦包含此類大致半圓的剖面之凹槽。上述轉印輥的表面所具備之轉印模的形狀’並不限於剖面形狀爲大致半圓形狀的槽，例如有在轉印輥的圓周上平行地設置有多數個V字槽（V字凹部）之形狀。此時的剖面形狀爲三角形。V字槽（三角形）的頂角一般爲 160。以下，就容易製作的觀點來看，一般爲40°以上° V 字槽（三角形）的間距間隔P，就容易製作轉印_之觀點來看，一般爲ΙΟμιη以上，較理想爲50μιη以上，但本發 -14- 201002507 明之其他的較佳型態中，間距間隔P爲50μιη〜5 00μιη的範圍，較理想爲200μιη〜500μιη。轉印輥的表面形狀之製作方法，皆在由不鏽鋼、鋼材等之金屬壓輥的面內施以例如鍍鉻、鍍銅、鍍鎳、鍍鎳磷等之電鍍處理後，可使用金剛石刀具或金屬硏磨砂輪等來進行去除加工，或是進行雷射加工或化學蝕刻來加工形狀，但並不限定於這些手法。轉印輥的表面狀態，例如可在不損及表面形狀的精度之水準下’於表面形狀的加工後施以鍍鉻、鍍銅、鍍鎳、鍍鎳磷等之電鍍處理。可藉由將轉印輥的表面形狀轉印至連續樹脂薄片，而製造出目的的表面形狀轉印樹脂薄片。所製得之表面形狀轉印樹脂薄片’ 一般係在冷卻後切斷成片狀，並且例如用作爲構成液晶顯7Κ裝置之見度提升薄片等。此外，當使用添加光擴散劑者作爲樹脂時，可用作爲在表面轉印有形狀之光擴散板。上述轉印輕表面的凹凸部’例如爲平行地設置有多數個V槽之形狀。V槽的頂角—般爲160。以下，就容易製作之觀點來看，一般爲40。以上。ν槽的間距，就容易製作轉印輥之觀點來看，一般爲ΙΟμηι以上，較理想爲 5〇_以上。本發明之製造方法，在間距爲1〇μιη〜2〇〇_ 的範圍中’乃較爲適合’此外，當將間距設定爲 50μιη〜500μΙη，較理想爲200μπι〜5〇〇μιη時，即使將凹槽深度設定爲3μιη〜500μηι，亦能夠使表面形狀的轉印率成爲 -15 - 201002507 良好。 <維氏軟化點> 本發明之製造方法中，當轉印輥滿足上述表面形狀1 時，與上述轉印輥密接之面之連續樹脂薄片的表面溫度，較理想爲較上述連續樹脂薄片之樹脂的維氏軟化點還高 20°C ~6(TC之溫度。在此，當配合樹脂的維氏軟化點來調整上述樹脂薄片的表面溫度時，可藉由適當地調整轉印輥的溫度，或是調整上述第二按壓輥14的溫度，此外並調整第二按壓輥1 4與轉印輥1 5的旋轉溫度來進行。當與上述轉印輥密接之面之連續樹脂薄片的表面溫度較上述連續樹脂薄片之樹脂的維氏軟化點未滿20 °C時，由於樹脂會冷卻而固化，所以無法充分地提高轉印率，另一方面，若超過60 °C，則難以高精度地轉印表面形狀。尤其當轉印輥之表面形狀的間距間隔P爲1 Ομιη〜200μιη時，如上述般，可藉由將連續樹脂薄片的溫度設定爲較樹脂的維氏軟化點還高2 0 °C〜6 0 °C之溫度，更能夠良好地達成上述本發明之效果。例以下係舉出實施例來更詳細說明本發明，但本發明並不限定於此。 <原材料> -16- 201002507 透光性樹脂A :苯乙烯樹脂（折射率1 · 5 9、維氏軟化點 106.8°C ) 透光性樹脂B: MS樹脂（苯乙烯/甲基丙烯酸甲酯 =80質量份/20質量份、折射率1.57、維氏軟化點102.1 ) 結晶性樹脂C1 :丙烯-乙烯無規共聚物樹脂（住友化學株式會社製、「FSX20L8」、丙烯單位含有量99質量％以上、乙烯單位含有量1質量％以下）紫外線吸收劑：苯並三唑系紫外線吸收劑（2,2’-伸甲雙[6- (2H-苯並三唑-2-基）-4- (1,1，3,3-四甲基丁基）酚](ADEKA 社製「AdekastabLA31」））光安定劑：受阻胺系光安定劑（Chiba Specialty Chemicals 株式會社製、「Tinuvin XT 8 5 5FF」）成核劑：有機磷酸鹽成核劑（磷酸2，2 ’ -伸甲雙（ 4,6-二-三級丁基苯基）鈉（ADEKA社製「Adekastab ΝΑΙ 1」））防氧化劑：磷系防氧化劑（三（2,4-二-三級丁基苯基）亞磷酸鹽（Chiba Specialty Chemicals株式會社製、 Irg168 )) <母料> 表層母料ΜΑ :將98.7質量份的結晶性樹脂Cl、0.5 質量份的紫外線吸收劑（L A3 1 )、0 · 5質量份的光安定劑 (Tinuvin XT 8 5 5FF ) 、〇_ 1 質量份的成核劑（Adekastab -17- 201002507 N A 1 1 ) 、0 ·2質量份的防氧化劑（I r g 1 6 8 )予以乾式摻合而製得摻合物。將此摻合物投入於65mm雙軸擠壓機的供料斗，在22 5 °C〜2 6 0 °C的缸體內進行熔融捏合後，擠壓成線狀並予以小球化’而獲得小球狀的表層母料Μ A。中間層母料Μ B :將9 4 · 0質量份的結晶性樹脂C 1 ' 2.0質量份的成核劑（AdekastabNAll) 、4.0質量份的防氧化劑（Irg 168 )予以乾式摻合而製得摻合物。將此摻合物投入於65mm雙軸擠壓機的供料斗，在225°C〜260°C的缸體內進行熔融捏合後，擠壓成線狀並予以小球化，而獲得小球狀的中間層母料MB。 <轉印輥1 > 半圓凹槽：本實施例及比較例中，在無特別提及時 ’施加於轉印輥的比面之該半圓形狀凹槽之複印模的剖面形狀（第2圖），爲間距間隔（P ) = 1 1 8.2 ( μ m )，凸音|3 間的平坦部=15.2 ( μιη )，從槽至頂點爲止的距離（Η ) = 48.5 ( μιη)，筒度與寬度之比例（Α = Η/ Ρ) =0.41之尺寸之柱狀透鏡形狀，各槽部係以等間隔（間距間隔）平行地構成。在此，所謂柱狀透鏡形狀，亦稱爲圓柱透鏡，爲至少一面呈圓柱的一部分之形狀的透鏡（參考第3圖），例如意味著將圓柱往軸方向分割爲二之形狀。粗糙面：施加於轉印模的全面之粗糙面的形狀，係構成爲算數平均粗稳度Ra爲7.55μιη，上述粗糙面的十黑占平均粗糙度Rz爲39.17μιη’上述粗糙面的平均長度^如爲 -18- 201002507 1 1 4 μηι 〇 <實施例1 > 將透光性樹脂Α在缸體內的溫度爲190〜260 °C之第1 擠壓機中進行熔融捏合，並供應至分層器。另一方面，將透光性樹脂B在缸體內的溫度爲190〜26(TC之第2擠壓機中進行熔融捏合，並供應至分層器。以從上述第1擠壓機供應至分層器之樹脂成爲主層，從上述第2擠壓機供應至分層器之樹脂成爲表層（主層的雙面）之方式，於擠壓樹脂溫度26 0 °C中進行共擠壓成形，並以按壓輥進行按壓與冷卻，藉此製作出厚度2.0mm 之由3層的層合板所形成之連續樹脂薄片（S1)。此外，上述成形時係使用2個按壓輥，爲了按壓從擠壓機所吐出之連續樹脂薄片，係於上側配置第一按壓輥，於下側配置第二按壓輥。再者，連續樹脂薄片（S1) ’ 在密接於第二按壓輥且被搬運時被冷卻，然後再藉由第二按壓輥與轉印輥予以按壓。此時，於轉印輥之輥表面的圓周上形成有大致半圓凹槽，在連續樹脂薄片（S1)表層的上面側轉印有大致半圓凹槽的相反模，而獲得表面形狀轉印樹脂薄片（S1 )。上述成形時各壓輥的溫度，係設定爲第一按壓輥的溫度（a) =95。(：，第二按壓輥的溫度（b) =105°c ’轉印輥的溫度（c ) =1081：。此外，係設定爲2個按壓輥與1 個轉印輥與樹脂拉取輥的旋轉速度（r ) =〇.58rpm °上述 -19- 201002507 成形時與轉印輥密接之面之樹脂的上述表面溫度，爲127 t。轉印於上述表面形狀轉印樹脂薄片（S 1 )之形狀的轉印率，爲79%。樹脂的上述表面溫度，係使用紅外線輻射溫度計來測定。 [表面形狀轉印樹脂薄片的評估] 切斷所製得之表面形狀轉印樹脂薄片（S 1 )，對剖面進行鏡面加工後，以超深度形狀測定顯微鏡[KEYENCE 社製「VK-8 5 00」]進行觀察，並測定從轉印至表面之大致半圓凹槽之相反模的槽開始至頂點爲止之距離（N )，然後從複印模（轉印模）的剖面形狀槽開始至頂點爲止之距離（Η )中，藉由下列式（1 )算出轉印率々（％ )。 β =N/Hxl 00 ( % )......( 1 ) 該結果如第1表所示。 <實施例2 > 將上述成形時各壓輥的溫度設定爲第一按壓輥的溫度（a ) =9 5t：，第二按壓輥的溫度（b ) =l〇3°C，轉印輥的溫度（c ) =107 °C。此外，係設定爲2個按壓輥與1個轉印輥與樹脂拉取輥的旋轉速度（r ) =〇.65rpm，以獲得厚度2.0mm之連續樹脂薄片（S2 )，除此之外，其他係進行與實施例1相同之操作。上述成形時與轉印輥密接之 -20- 201002507 面之樹脂的上述表面溫度，爲135°c。轉印於上述表面形狀轉印樹脂薄片（S2 )之形狀的轉印率，爲75%。 <實施例3 > 將透光性樹脂A在缸體內的溫度爲190〜260°C之第1 擠壓機中進行熔融捏合，並供應至分層器。另一方面，將透光性樹脂B在缸體內的溫度爲190〜260 °C之第2擠壓機中進行熔融捏合，並供應至分層器。以從上述第1擠壓機供應至分層器之樹脂成爲主層，從上述第2擠壓機供應至分層器之樹脂成爲表層（主層的雙面）之方式，於擠壓樹脂溫度260 °C中進行共擠壓成形，並以按壓輥進行按壓與冷卻’藉此製作出厚度2.0mm 之由3層的層合板所形成之連續樹脂薄片（S3 )。此外，上述成形時係使用2個按壓輥’爲了按壓從擠壓機所吐出之連續樹脂薄片’係於上側配置第一按壓輥，於下側配置第二按壓輥。再者，連續樹脂薄片（s 3 ) ’ 在密接於第二按壓輥且被搬運時被冷卻，然後再藉由第二按壓輥與轉印輥予以按壓。此時，於轉印輥之輥表面的全面上形成有上述粗糙面，在連續樹脂薄片（S3 )表層的上面側轉印有粗糙面的相反模，而獲得表面形狀轉印樹脂薄片（S 3 )。上述成形時各壓輥的溫度，係設定爲第一按壓輥的溫度（a) =95°C，第二按壓輥的溫度（b ) =95°C，轉印輥的溫度（c ) = 1 0 9 °C。此外，係設定爲2個按壓輥與1個 -21 - 201002507 轉印輥與樹脂拉取輥的旋轉速度（r) =0.59rpm。上述成形時與轉印輥密接之面之樹脂的上述表度，爲1 30°C。轉印於上述表面形狀轉印樹脂薄片（之形狀’ Ra爲4.16μιη，Rz爲20·6μιη’上述粗稳面均長度Sm爲173μιη。 <比較例1 > 當進行與實施例1相同之操作以獲得連續樹脂 (S4 )時，係使用2個按壓輥，如第5圖所示，爲了從擠壓機所吐出之連續樹脂薄片，係於上側配置第一輥，於下側配置轉印輥。再者，連續樹脂薄片（S4 ) 密接於轉印輥且被搬運時被冷卻，然後再藉由轉印輕二按壓輥予以按壓。此時，於轉印輥之輥表面的圓周上形成有大致凹槽，在連續樹脂薄片（S4 )表層的下面側轉印有大圓凹槽的相反模，而獲得厚度2.0mm之表面形狀轉脂薄片（S4 )。上述成形時各壓輥的溫度，係設定爲第一按壓溫度（a ) =95°C，第二按壓輥的溫度（b ) =108°C，輥的溫度（c) =105 °C。此外，係設定爲2個按壓輕個轉印輥與樹脂拉取輥的旋轉速度（r ) =0.58rpm。成形時與轉印輥密接之面之樹脂的上述表面溫度，爲 °C。轉印於上述表面形狀轉印樹脂薄片（S4 )之形狀印率，爲39.0%。面溫 S3 ) 的平薄片按壓按壓，在與第半圓致半印樹輥的轉印與1 上述 255 的轉 -22- 201002507 <比較例2 > 當進行與實施例1相同之操作以獲得連續樹脂薄片 (S5)時，係使用2個按壓輥，如第5圖所示’爲了按壓從擠壓機所吐出之連續樹脂薄片，係於上側配置第一按壓輥，於下側配置轉印輥。再者，連續樹脂薄片（S 5 )，在密着於轉印輥且被搬運時被冷卻’然後再藉由轉印輥與第二按壓輥予以按壓。此時，於轉印輥之輥表面的圓周上形成有大致半圓凹槽，在連續樹脂薄片（S 5 )表層的下面側轉印有大致半圓凹槽的相反模，而獲得厚度2.0mm之表面形狀轉印樹脂薄片（S 5 )。上述成形時各壓輥的溫度’係設定爲第一按壓輥的溫度（a) =95°C，第二按壓輥的溫度（b) =108°c，轉印輥的溫度（c ) = 10 5 °C。此外，係設定爲2個按壓輥與1 個轉印輥與樹脂拉取輥的旋轉速度（r) =0.65 rpm。上述成形時與轉印輥密接之面之樹脂的上述表面溫度，爲255 t。轉印於上述表面形狀轉印樹脂薄片（S 5 )之形狀的轉印率，爲2 4.0 %。 <比較例3 > 將透光性樹脂A在缸體內的溫度爲iQO〜260 °c之第1 擠壓機中進行熔融捏合’並供應至分層器。另一方面，將透光性樹脂B在缸體內的溫度爲190〜260 °C之第2擠壓機中進行熔融捏合，並供應至分層器。 -23- 201002507 以從上述第1擠壓機供應至分層器之樹脂成爲主層，從上述第2擠壓機供應至分層器之樹脂成爲表層（主層的雙面）之方式，於擠壓樹脂溫度260°C中進行共擠壓成形，並以按壓輥進行按壓與冷卻，藉此製作出厚度2.0mm 之由3層的層合板所形成之連續樹脂薄片（S6)。此外，上述成形時係使用2個按壓輥，爲了按壓從擠壓機所吐出之連續樹脂薄片，係於上側配置第一按壓輥，於下側配置第二按壓輥。再者，連續樹脂薄片（S6 ) ’ 在密接於第二按壓輥且被搬運時被冷卻，然後再藉由第二按壓輥與轉印輥予以按壓。此時，於轉印輥之輥表面的全面上形成有上述粗糙面，在連續樹脂薄片（S6)表層的上面側轉印有粗糙面的相反模，而獲得厚度2.0mm之表面形狀轉印樹脂薄片（S 6 )。上述成形時各壓輥的溫度，係設定爲第一按壓輥的溫度（a) =90 °C ’第二按壓輥的溫度 (b ) = 9 4 °C，轉印輥的溫度（c ) = 1 1 0 °C。此外，係設定爲2個按壓輥與1個轉印輥與樹脂拉取輥的旋轉速度（r ) =0.59rpm。上述成形時與轉印輥密接之面之樹脂的上述表面溫度，爲1 1 5 °C。轉印於上述表面形狀轉印樹脂薄片（S6 )之形狀，Ra爲1 .61 μηι，RZ爲 8.86μπι >上述粗糙面的平均長度Sm爲3 06 μηι。 <比較例4 > 當進行與實施例1相同之操作以獲得連續樹脂薄片 (S7)時，係使用2個按壓輥，爲了按壓從擠壓機所吐出 -24- 201002507 之連續樹脂薄片，係於上側配置第一按壓輥，於轉印輥。再者，連續樹脂薄片（S7 )，在密着於被搬運時被冷卻，然後再藉由轉印賴與第二按壓壓。此時，於轉印輥之輥表面的全面上形成有面’在連續樹脂薄片（S 7 )表層的上面側轉印有相反模，而獲得表面形狀轉印樹脂薄片（S 7 )。上述成形時各壓輥的溫度，係設定爲第一溫度（a ) =8 2°C ’第二按壓輥的溫度（b ) =1 1G 輥的溫度（c ) = 9 2 °C。此外，係設定爲2個按壓轉印輥與樹脂拉取輥的旋轉速度（r ) = 0 · 5 5 r p m 形時與轉印輥密接之面之樹脂的上述表面溫度，。轉印於上述表面形狀轉印樹脂薄片（S 7 )之爲2_60μηι’ Rz爲11·7μπι，上述粗糖面的平均長 2 5 2 μηι ° <比較例5 > 當進行與實施例1相同之操作以獲得連續 (S 8 )時，係使用2個按壓輥，爲了按壓從擠壓之連續樹脂薄片，係於上側配置轉印輥，於下側按壓輥。再者，連續樹脂薄片（S8)，在密着於輥且被搬運時被冷卻，然後再藉由第一按壓輥與輥予以按壓。此時，於轉印輥之輥表面的全面上形成有下側配置轉印輥且輥予以按上述粗糙粗糙面的按壓輥的 t，轉印輥與1個。上述成爲 24 5 °C 形狀，Ra 度S m爲樹脂薄片機所吐出配置第一第一按壓第二按壓上述粗糙 -25- 201002507 面’在連續樹脂薄片（s 8)表層的上面側轉印有粗相反模’而獲得表面形狀轉印樹脂薄片（S 8 )。上述成形時各壓輥的溫度，係設定爲第一按溫度（a) =95°c，第二按壓輥的溫度（b) =97°c ’ 的溫度（Ο = 1 1 〇°C。此外’係設定爲2個按壓輥轉印賴與樹脂拉取輕的旋轉速度（r) =0_55rpm。开多時與轉印輥密接之面之樹脂的上述表面溫度’爲。轉印於上述表面形狀轉印樹脂薄片（S 8 )之形爲〇 82μιη，Rz爲2·93μηι，上述粗糙面的平均長虔 5 3 2μηι ° 糙面的壓輥的轉印輥與1個上述成 -2 4 5 °C 狀，Ra ;Sm爲 -26- 201002507 ss】形狀轉印率 (%) σ> 卜 LO r- σ> co 1 速度 (rpm) 〇0 in ο 0. 65 1 0.58 1 0. 65 壓輥溫度rc) 轉印輥 g τ~· 5 m τ-— g 第二 g CO o Ln Ο g 第一按壓輥 in a> ITD LO 0¾ LO σ> 轉印前的樹脂溫度 rc) (Sj m CO T—· ΙΟ in CM LO LO CM 樘县溫度 rc) § CM o CO 04 O CD § 04 轉印輥的位置画濉第3個 1第2個1 第2個實施例1 1實施例2 比較例1 比較例2 Μ m Sm ("m) CO y— CD 宕 CM in CM Csi CO Lf> 迪 s m m 迪 Rz ("m) 20.6 0¾ od 1 T— ▼— CT> cvi Ra ("m) CNJ CD CO cvi oo o 1拉取1 速度 (rpm) σ> LO o 1 0.59 1 1 0. 55 I 0. 55 壓輥溫度（°c) 轉印輥 g Ο τ— o r— o 第二 LO s 04 σ> 卜 σ> 第一按壓輥 LO σ> § CN oo LO CT> s te S 驄 IW· 1 · ·^ ·^ * · -^ 樹脂溫度 (°C) LD τ— in LO 樽县溫度 (°C) g CVI s CSJ g CNJ g CNJ 轉印輥的位置第3個第3個第2個第1個實施例3 1比較例3」 1比較例4 1 比較例5 27- 201002507 第1表、第2表之轉印輥的欄，從接近於擠壓機的模具之壓輥開始依序設定爲第1個、第2個、第3個。關於實施例1-3，比較例3，第1圖中第1個爲第一按壓輥，第2個爲第二按壓輥，第3個爲轉印輥。關於比較例1、 2及4，就簡便上係於第二按壓輥的欄顯示轉印輥的壓輥溫度，於轉印輥的欄顯示第二按壓輥的壓輥溫度。 <算數平均粗糙度Ra測定法> 依據Jis BO60 1 - 1 994測定出算數平均粗糙度Ra。亦即，使用表面粗糙度計（Mitutoyo製「SJ-201P」），測定，轉印模的粗糙面與表面形狀轉印樹脂薄片的粗糙面之算數平均粗糙度Ra。表面粗糙度計的測定條件’係設定爲截止値：2.5x5。 <十點平均粗糙度Rz測定法> 依據JIS BO601 · 1 994測定出十點平均粗糙度Rz。亦即，使用表面粗糙度計（Mitutoyo製「SJ-201P」）’測定，轉印模的粗糙面與表面形狀轉印樹脂薄片的粗糙面之十點平均粗糙度Rz。表面粗糙度計的測定條件’係設定爲截止値：2.5x5。 <平均長度Sm測定法> 依據JI S Β Ο 6 0 1 - 1 9 9 4測定出平均長度S m。亦即’使用表面粗糙度計（Mitutoyo製「SJ-20 1 P」）’測定，轉 -28- 201002507 印模的粗糙面與表面形狀轉印樹脂薄片的粗糙面之平均長度Sm。表面粗糙度計的測定條件，係設定爲截止値：2.5 <評估結果1 > 實施例1及比較例1 ’係以拉取速度爲一定（ 0.58rpm)並分別將轉印前的樹脂溫度設定在135°C及255 °C，由於比較例1爲遠較樹脂的維氏軟化點（1 02 · 1 °C ) 還高之溫度，所以形狀轉印率爲3 9 %之低値。實施例2及比較例2，係以拉取速度爲一定（ 0.65rpm)並分別將轉印前的樹脂溫度設定在135C及255 t，由於比較例2爲遠較樹脂的維氏軟化點（1 〇2· 1 °C ) 還高之溫度，所以形狀轉印率爲24%之低値。實施例 3及比較例 3，係以拉取速度爲一定（ 0.59rpm)並分別將轉印前的樹脂溫度設定在13〇°C及115 。(：，由於比較例3與樹脂的維氏軟化點（102.1 °C )之差約爲1 31，所以粗糙面的粗糙度Ra、Rz爲較實施例3還小之値。 <轉印輥2 > 此外，轉印輥係使用具有第3表所記載的形狀之各個大致半圓凹槽A~D。第3表中，P、d、H爲第2圖所示之大致半圓凹槽的複印模之剖面形狀的各距離，1"間$胃隔P」爲鄰接的凹槽之槽底間距離，「平坦部的寬度d」 -29- 201002507 爲鄰接的凹槽間之平坦部的寬度，「槽深度Η」爲轉印模表面圓周上與平坦部之間的距離。此外，「深寬比Α」，爲槽深度Η與間距間隔ρ之比例Η/P。各個大致半圓凹槽 Α〜D爲上述柱狀透鏡形狀。 V字凹槽：施加於轉印模之V字凹槽的複印模之剖面形狀（第4圖），係顯示於第5表。「間距間隔P」爲鄰接的凹槽之槽底間距離，「槽深度Η」爲至凹槽的頂角爲止之垂直距離，「Θ」爲 V字凹部之頂點的角度（頂角）。第5表所示之各V字凹槽Ε〜Η，爲稜鏡透鏡（角柱透鏡）形狀，如第4圖所示，各槽部係以等間隔（間距間隔Ρ )平行地構成。以下係說明分別運用上述大致半圓凹槽Α〜D及V字凹槽E〜Η作爲轉印輥的表面形狀時之實施例。 <實施例4 > 將透光性樹脂Α在缸體內的溫度爲190〜25 〇°C之第1 擠壓機中進行熔融捏合，並供應至分層器。另一方面’將透光性樹脂B在缸體內的溫度爲190〜2 5 0 °C之第2擠壓機中進行熔融捏合，並供應至分層器。以從上述第1擠壓機供應至分層器之樹脂成爲主層，從上述第2擠壓機供應至分層器之樹脂成爲表層（主層的雙面）之方式，於擠壓樹脂溫度25 0 °C中進行共擠壓成形’並以第1圖所示之按壓輕進行按壓與冷卻’藉此製作出厚度2.0mm之由3層的層合板所形成之連續樹脂薄片 -30- 201002507 (S9 ) ° 於連續樹脂薄片（S9)的製造時，爲了按壓從擠壓機所吐出之連續樹脂薄片，係於該薄片的上側配置第一按壓輥1 3，於下側配置第二按壓輥1 4。藉由第一按壓輥1 3 與第二按壓輥1 4予以按壓後，密接於第二按壓輥1 4的表面且被搬運，並於此時被冷卻。然後再藉由第二按壓輥14與在表面具有轉印模之轉印輥1 5予以按壓。轉印輥1 5係於該表面形成有第3表所示之大致半圓凹槽A作爲轉印模，於上述第二按壓輥14 與轉印輥15的按壓時，在連續樹脂薄片（S9)表層的上面側轉印有大致半圓凹槽A的相反模，而獲得表面形狀轉印樹脂薄片（S 9 )。上述製造時各輥表面的溫度，係調整成第一按壓輥 13爲70°C，第二按壓輥14爲88°C，轉印輥1 5爲94°C。轉印於實施例4中所製得之表面形狀轉印樹脂薄片 (S 9 )之形狀的形狀轉印率τ，爲9 0.4 %。 <實施例5 > 係調整按壓輥的按壓使連續樹脂薄片的厚度成爲 1 .5 m m ’除此之外，其他與實施例4相同而獲得由3層的層合板所形成之連續樹脂薄片（S 1 0 )。此時，於轉印輥 15之輕表面的圓周上形成有大致半圓凹槽A，在連續樹脂薄片（S 1 0 )表層的上面側轉印有大致半圓凹槽a的相反模’而獲得表面形狀轉印樹脂薄片（S 1 〇 )。 -31 - 201002507 轉印於實施例5中所製得之表面形狀轉印樹脂薄片 (S 1 0 )之形狀的形狀轉印率Τ，爲96.1 %。 <實施例6 > 將透光性樹脂A在缸體內的溫度爲190〜25 0 °C之第3 擠壓機中進行熔融捏合’並供應至分層器。另一方面，將透光性樹脂B在缸體內的溫度爲190〜250 °C之第4擠壓機中進行熔融捏合，並供應至分層器。以從上述第3擠壓機供應至分層器之樹脂成爲主層，從上述第4擠壓機供應至分層器之樹脂成爲表層（主層的雙面）之方式，於擠壓樹脂溫度25 0 °C中進行共擠壓成形，並以按壓輥進行按壓與冷卻，藉此製作出厚度2.0mm 之由3層的層合板所形成之連續樹脂薄片（S11)。此外，上述製造時係使用3個按壓輥，爲了按壓從擠壓機所吐出之連續樹脂薄片，係於上側配置第一按壓輥 1 3 ’於下側配置第二按壓輥1 4。再者，連續樹脂薄片（ S11)，在密接於第二按壓輥14且被搬運時被冷卻，然後密接於轉印輥15且被搬運，然後被拉取至第四按壓輥（圖中未顯示）。此時，於第二按壓輥14與轉印輥1 5以及轉印輕1 5與第四按壓輥之間，連續樹脂薄片未被按壓，而形成有空隙。上述轉印輥之輥表面的圓周上形成有大致半圓凹槽B ，在連續樹脂薄片（S11)表層的上面側轉印有大致半圓凹槽B的相反模’而獲得表面形狀轉印樹脂薄片（s 1 1 ) -32- 201002507 上述製造時各輥表面的溫度’係調整成第一按壓輥 13的溫度爲78 °C ’第二按壓輥14的溫度爲78 °C，轉印輥1 5的溫度爲9 8 °C。轉印於實施例6中所製得之表面形狀轉印樹脂薄片 (S11)之形狀的形狀轉印率Τ’爲78.6%。 <實施例7 > 係調整按壓輥的按壓使連續樹脂薄片的厚度成爲 1.5mm，除此之外，其他與實施例6相同而獲得厚度 1.5mm之由3層的層合板所形成之連續樹脂薄片（S12) 〇於轉印輥15之輥表面的圓周上形成有大致半圓凹槽 B，在連續樹脂薄片（S 1 2 )表層的上面側轉印有大致半圓凹槽B的相反模，而獲得表面形狀轉印樹脂薄片（S 1 2 )° 轉印於實施例7中所製得之表面形狀轉印樹脂薄片 (S12 )之形狀的形狀轉印率T，爲92.8%。 <比較例6 > 如第5圖所示，未於轉印輥上而是在第二按壓輥3 4 表面上形成轉印模，並且變更冷卻溫度’除此之外’其他進行與實施例5相同之操作而獲得厚度1 . 5 mm之連續樹脂薄片（S 1 3 )。連續樹脂薄片（S 1 3 )，在密接於作爲轉 -33- 201002507 印輥之第二按壓輥14且被搬運時被冷卻，然後被拉取至第三按壓輥35且被搬運。此時，於轉印輥與第三按壓輥 3 5之間形成有空隙，連續樹脂薄片於這些壓輥之間處於未被按壓之狀態。上述轉印輥之輥表面的圓周上形成有大致半圓凹槽C ，在連續樹脂薄片（s 1 3 )表層的下面側轉印有大致半圓凹槽C的相反模，而獲得表面形狀轉印樹脂薄片（S 1 3 ) 〇上述製造時各輥表面的溫度，係調整成第一按壓輥 33的溫度爲50 °C，第二按壓輥34(轉印輥）的溫度爲80 t，第三按壓輥35的溫度爲90°C。轉印於比較例6中所製得之表面形狀轉印樹脂薄片 (S 1 3 )之形狀的形狀轉印率T，爲3 0 · 0 %。 <實施例8 > 除了變更轉印模及冷卻溫度之外，其他與實施例4 相同，於第三按壓輥具備轉印模（參考第1圖），並以按壓輥與轉印輥進行按壓及冷卻，藉此獲得厚度2.0mm之由3層的層合板所形成之連續樹脂薄片（S14)。於上述轉印輥之輥表面的圓周上形成有大致半圓凹槽C，在連續樹脂薄片（S 1 4 )表層的下面側轉印有大致半圓凹槽C的相反模，而獲得表面形狀轉印樹脂薄片（ S 1 4 ) ° 上述製造時各輥表面的溫度，係調整成第一按壓輥 -34- 201002507 I3的溫度爲7〇°C ’第二按壓輥14的溫度爲i〇8〇c，第三按壓輥15的溫度爲88。(：。轉印於實施例8中所製得之表面形狀轉印樹脂薄片 (S 1 4 )之形狀的形狀轉印率τ，爲4 〇 . 〇 %。 <比較例7 > 係於轉印輥之輕表面的圓周上形成有大致半圓凹槽 D ’除此之外’其他進行與比較例6相同之操作而獲得厚度1.5mm之表面形狀轉印樹脂薄片（sl5)。轉印於比較例1 7中所製得之表面形狀轉印樹脂薄片 (S 1 5 )之形狀的形狀轉印率τ，爲4 8 · 〇 %。 <實施例9 > 係於轉印輥之輥表面的圓周上形成有大致半圓凹槽 D ’除此之外，其他進行與實施例8相同之操作而獲得厚度2.0mm之表面形狀轉印樹脂薄片（S16)。轉印於實施例9中所製得之表面形狀轉印樹脂薄片 (S 1 6 )之形狀的形狀轉印率τ，爲6 5.0 %。 <實施例1 〇 > 將95質量份的結晶性樹脂C1與5質量份的中間層母料MB進行乾式摻合後，在缸體內的溫度爲190〜26 0。(：之第1擠壓機中進行熔融捏合，並供應至分層器。另一方面，將表層母料MA在缸體內的溫度爲190〜260 °C之第2 -35- 201002507 擠壓機中進行熔融捏合，並供應至分層器。以從上述第1擠壓機供應至分層器之結晶性樹脂C1 與中間層母料MB經乾式摻合者成爲主層，從上述第2擠壓機供應至分層器之表層母料MA成爲上述主層的雙面（表層）之方式，於擠壓樹脂溫度250 °C中進行共擠壓成形，並以第1圖所示之按壓輥進行按壓與冷卻，藉此製作出厚度1.5mm之由3層的層合板所形成之連續樹脂薄片（ S7 )。於連續樹脂薄片（S17)的製造時，爲了按壓從擠壓機所吐出之連續樹脂薄片，係於該薄片的上側配置第一按壓輥1 3，於下側配置第二按壓輥1 4。藉由第一按壓輥1 3 與第二按壓輥1 4予以按壓後，密接於第二按壓輥1 4的表面且被搬運，並於此時被冷卻。然後再藉由第二按壓輥14與在表面具有轉印模之轉印輥1 5予以按壓。於轉印輥，形成有第5表所示之V型凹槽E作爲轉印模，於上述第二按壓輥1 4與轉印輥1 5的按壓時，在連續樹脂薄片（S17)表層的上面側轉印有第 4圖所示之V型凹槽E的凸部與凹部爲相反之模，而獲得表面形狀轉印樹脂薄片（S 1 7 )。[Technical Field] The present invention relates to a method for producing a transfer resin sheet, and more particularly to a method for producing a resin sheet for transferring a surface shape of a transfer mold. [Prior Art] In the related art, a method for producing a resin sheet for transferring a surface shape of a transfer mold is disclosed in Japanese Laid-Open Patent Publication No. Hei 9-11328. The resin is continuously extruded from the mold 32 in a heated and molten state, and the obtained continuous resin sheet 31 is sandwiched between the first pressing roller 33 and the second pressing roller 34, whereby the surface shape of the transfer roller is formed. A method of transferring to a continuous resin sheet. [Patent Document 1] Japanese Laid-Open Patent Publication No. Hei 9-1 1328. However, in the conventional method for producing a transfer resin sheet, in order to transfer the surface shape of the transfer roller to the continuous resin sheet with high precision, it is necessary. Lowering the transfer speed is not a good method of productivity. An object of the present invention is to provide a method for producing a transfer resin sheet which can transfer a surface shape of a transfer roller with a high degree of precision and a device for producing a transfer resin sheet. The present invention relates to a method for producing the above-mentioned transfer resin sheet, which is a continuous resin sheet which is continuously extruded from a mold in a heated and molten state, -5-201002507 is sandwiched between a first pressing roller and a second pressing roller And cooling the continuous resin sheet in a state of being in close contact with the second pressing roller, and then sandwiching between the second pressing roller and the transfer roller adjacent to the second pressing roller, thereby the surface shape of the transfer roller A method for producing a transfer resin sheet transferred to a continuous resin sheet, characterized in that a plurality of grooves are formed on a surface of the transfer roller, and in the cross-sectional shape, the groove bottom interval P of the adjacent groove is set to 1〇 Ιιη~500μπι, the groove depth Η of the groove is set to 3μιη~5 00μιη. A preferred embodiment of the present invention is a method for producing a transfer resin sheet, wherein a surface temperature of the continuous resin sheet which is in close contact with the transfer roller is higher than a Vicat softening point of the resin of the continuous resin sheet. Temperature from 20 ° C to 60 ° C. Another preferred embodiment of the present invention is a method of producing a transfer resin sheet in which the groove bottom interval P is set to ΙΟμηι to 200 μm, and the groove depth Η is set to 3 μm to 200 μm. Another preferred mode of the present invention is a method for producing a transfer resin sheet, wherein a plurality of substantially semicircular grooves having a substantially semicircular cross-sectional shape and adjacent substantially semicircular grooves are formed on a surface of the transfer roller. The groove bottom spacing Ρ is set to 1 〇 μηη to 2 00 μιη, and the groove depth Η of the substantially semicircular groove is set to 3 μιη to 200 μιη. A further preferred embodiment of the present invention is a method for producing a transfer resin sheet, wherein a plurality of triangular grooves having a triangular cross-sectional shape are formed in a plane of the transfer roller, and a bottom groove angle of the triangular groove is set The ratio is ΙΟμιη to 2 0 0 μm. 201002507 Further, another preferred embodiment of the present invention is a method for producing a transfer resin sheet, wherein a rough surface is formed on a surface of the transfer roller, and the shape of the rough surface is set to an arithmetic mean roughness Ra of Ιμηι~十μηι, the ten-point average roughness Rz of the unevenness of the rough surface is set to 5 μm to 50 μm. Another preferred embodiment of the present invention is a method for producing a transfer resin sheet, wherein the groove bottom spacing Ρ is set to be more than 200 μm or more and 500 μm or less, and the groove depth Η is set to 3 μm. 5 00 μϊη. Another preferred embodiment of the present invention is a method of producing a transfer resin sheet in which a groove has a substantially semicircular cross-sectional shape. Another preferred embodiment of the present invention is a method for manufacturing a transfer resin sheet, wherein the groove has a triangular cross-sectional shape, and the apex angle of the triangle is 40° to 160, and the other preferred form of the present invention is a rotation. In the method for producing a printed resin sheet, the resin is a polypropylene resin, and the groove bottom spacing is set to 10 μm to 200 μm, and the groove depth Η is set to 3 μm to 5 00 μm. Further, the present invention relates to a manufacturing apparatus for a transfer resin sheet, comprising: a mold for continuously producing a resin in a heated molten state to produce a continuous resin sheet; and a pressing roller; and by sandwiching a continuous resin sheet A transfer roller that transfers the surface shape to the continuous resin sheet between the pressing rollers, wherein the transfer roller is formed with a plurality of grooves formed on the surface, and the groove bottom spacing is set to ΙΟμιη ~500μπι, the groove depth Η of the groove is set to 3μιη~5 00μηι. A preferred embodiment of the above manufacturing apparatus is a manufacturing apparatus in which the cross-sectional shape of the groove is a triangle and the apex angle of the triangle is 40 to 160. -7-201002507 According to the manufacturing method or the manufacturing apparatus of the present invention, the surface shape of the transfer roller can be transferred to the resin sheet with high precision and speed, and the transfer resin sheet excellent in precision and productivity can be produced. The above and other objects, features, aspects and advantages of the present invention will become more apparent from the Detailed Description [Embodiment] Hereinafter, a production method of the present invention will be described. Here, Fig. 1 is a view showing a device for manufacturing a pattern display surface shape transfer resin sheet. The manufacturing apparatus includes: a mold 12 that continuously extrudes a resin in a heated molten state to obtain a continuous resin sheet 11; and a pair of pressing rolls 13, 14; and a transfer roller 15 by using the above-mentioned continuous resin The sheet is sandwiched between one of the pressing rolls 14 and the transfer roller 15 adjacent thereto, and the surface shape of the transfer roller 15 is transferred to the above-mentioned continuous resin sheet 11. The surface temperature of the continuous resin sheet which is in close contact with the transfer roller is preferably 20 ° C to 60 ° C higher than the Vickers softening point of the resin of the continuous resin sheet. In the present invention, the surface temperature of the continuous resin sheet on the surface in contact with the transfer roller means that it is in contact with the transfer roller from the close contact point to the sheet conveyance direction of 50 mm in the opposite direction to the transfer roller. The surface temperature of the sheet on one side of the roll. This surface temperature can be measured using an infrared radiation thermometer. <Resin Material> As the resin used in the production method of the present invention, a thermosetting resin which is cured by heating 201002507 can be used, but a thermoplastic resin which is in a molten state by heating is generally used. For example, there are a styrene resin, an acrylic resin, a polyethylene resin, a polypropylene resin, a cyclic polyolefin polymer resin, an acrylonitrile-butadiene-styrene (ABS) resin, and polyethylene terephthalate ( PET) resin, polycarbonate (pc) resin, and the like. Further, when a polyacrylic resin is used as the resin, a particularly good transfer ratio can be obtained in a wide range of transfer patterns of the groove bottom pitch p or the groove depth Η. Additives such as a light diffusing agent, an ultraviolet absorber, a heat stabilizer, and an antistatic agent may be added to the above resin. The light diffusing agent may be an inorganic light diffusing agent or an organic light diffusing agent. Examples of the inorganic light diffusing agent include particles of an inorganic compound such as calcium carbonate, barium sulfate, titanium oxide, aluminum hydroxide, cerium oxide, inorganic glass, talc, mica, white carbon, magnesium oxide, or zinc oxide. The inorganic light diffusing agent for improving the dispersibility can be surface-treated with a surface treating agent such as a fatty acid. The organic light diffusing agent is, for example, a particle of an organic compound such as styrene polymer particles, acrylic acid polymer particles or siloxane polymer particles. When the light diffusing agent is added, the absolute enthalpy of the difference between the refractive index of the added light diffusing agent and the refractive index of the resin is generally 0.02 or more from the viewpoint of the light diffusing effect, and the surface shape is changed. From the viewpoint of light transmittance of the printed resin sheet, it is generally 0.20 or less, and more preferably 〇. A surface-transfer resin sheet produced by adding a light-diffusing agent to a resin can be used as a light-diffusing sheet. -9- 201002507 <Extrusion of Resin> As shown in Fig. 1, the mold 12 for extruding the continuous resin sheet 11 from the extruder 1 can be used as used in the general extrusion molding method. The same metal T-die, etc. When the resin is extruded from the mold 12 in a heated and molten state, an extruder used in a general extrusion molding method can be used. The extruder can be a single shaft extruder or a twin shaft extruder. The resin is heated in the extruder and is conveyed to the mold in a molten state for extrusion. When the resin is extruded from the mold in a heated and molten state, one type of resin may be supplied to the mold and extruded in a single layer, or two or more kinds of resins may be supplied, and co-extruded in a laminated state. When two or more kinds of resins are co-extruded in a laminated state, for example, two types of three-layered type layerers (not shown) can be used, and the resin is supplied to the mold through the layerer. The resin extruded from the mold is generally extruded into a continuous sheet shape to form a continuous resin sheet 11. The thickness of the continuous resin sheet 11 can be appropriately adjusted in accordance with the use of the sheet to be produced, for example, when used as a light diffusing plate, it can be formed to be 1 · 0 m m to 3.0 m m 〇 <Press Roll Forming> The continuous resin sheet 1 1 which is continuously extruded from the mold is sandwiched between the first and the pressing rolls! 3 and the second pressing roller 14. The first pressing roller and the second pressing material are generally made of a metal made of a metal such as stainless steel or steel, and the diameter is generally 100 mm to 500 mm. When a metal press roll is used as the first press roll and the second press -10-201002507 roll, the surface may be plated with chrome plating, copper plating, nickel plating, nickel plating phosphor or the like. Further, the surface of the pressing roller may be a mirror surface, and if it is not required to perform transfer with high precision, the transfer surface may be formed by applying unevenness such as embossing. In the present invention, a driving roller for transferring a continuous resin sheet or a pressing roller for forming may be additionally provided, and the pressing roller may be disposed between the mold 12 and the first pressing roller 13 and the second pressing roller 14, when When the continuous resin sheet 11 is in contact with the second pressing roller 14, it may be disposed adjacent to the second pressing roller 14. Here, the continuous resin sheet 11 pressed by the first pressing roller 13 and the second pressing roller 14 is in a state of being in close contact with the surface of the second pressing roller 14, with the rotation of the second pressing roller 14 It is transported to the adjacent transfer roller 15 . The continuous resin sheet 11 is in contact with the first pressing roller 13 and the second pressing roller 14, and is cooled between rotations attached to the surface of the second pressing roller 14, and further, by cooling from the outside air temperature The temperature is lowered from the heated and molten state extruded from the mold. <Transfer Roller> The continuous resin sheet 11 is pressed again between the second pressing roller 14 and the transfer roller 15, and is peeled off from the second pressing roller 14 and attached to the transfer roller 15. The surface is carried and conveyed as the transfer roller 15 rotates. At this time, when the surface temperature of the continuous resin sheet 11 is high, the continuous resin sheet 11 can be sufficiently adhered to the transfer roller 15 even if it is not pressed by the second pressing roller 14 and the transfer roller 15. The second pressing roller 14 and the transfer roller 15 between -11 and 201002507 may be opened larger than the thickness of the continuous resin sheet. The transfer roller is pressed against the surface of the continuous resin sheet, and the surface shape is transferred to the continuous resin sheet in a reverse mode. <Surface Shape 1 of Transfer Roller> A plurality of grooves are formed on the surface of the transfer roller, and the cross-sectional shape is spaced by the groove bottom of the adjacent groove (the tip interval p of the reversed resin sheet, The distance P defined by the spacing interval p or the pitch p is set to ΙΟμίΏ~2 00μηη, and the groove depth Η of the groove is set to 3 μm~2 0 0 μm. Here, the pitch P also includes the interval at which the groove bottom is not constant. Fig. 2 is a view showing the cross-sectional shape of the surface of the transferred continuous resin sheet by a substantially semicircular groove having a substantially semicircular cross-sectional shape in which the groove formed on the surface of the plurality of transfer rolls is formed. Sketch map. The groove bottom spacing of the adjacent substantially semicircular grooves is set to be 1 〇μπι to 200 μm, and the groove depth Η of the substantially semicircular groove is set to 3 μπι to 200 μηι 〇 when the pitch interval ρ of the transfer roller is less than 1 opm. It is difficult to manufacture, so it is preferably 30 μm or more. On the other hand, when the pitch interval Ρ exceeds 200 μm, the surface of the inverted resin sheet becomes rough, which deteriorates the appearance. Further, the groove depth Η of the substantially semicircular groove is in the range of 3 μπι to 2 0 0 μη, and the transfer roller can be easily produced, and is generally ΙΟμηη or more, preferably 50 μm or more. On the other hand, when the groove depth Η of the above substantially semicircular groove exceeds 2 μm, it is disadvantageous in transferring the surface shape with high precision. -12- 201002507 Preferably, a plurality of triangular grooves having a triangular cross-sectional shape are formed in a surface of the transfer roller, and a bottom groove angle formed on a sidewall of the triangular groove is set to 40 to 160 degrees. The pitch interval P of the adjacent triangular grooves is set to 1 〇μιη to 200 μιη. The grooves on the surface of the transfer roller are, for example, in the shape in which a plurality of V grooves are provided in parallel. The bottom groove angle of the V-groove is generally 160 or less, and it is generally 40' or more from the viewpoint of easy production. The pitch of the V-grooves is generally ΙΟμηα or more, and preferably 50 μm or more from the viewpoint of facilitating the production of the transfer roller. Preferably, a rough surface is formed on the surface of the transfer roller, and the arithmetic mean roughness Ra is set to 1 to 10 μm. The ten-point average roughness RZ of the rough surface is set to 5 -5 Ομπι. <Surface Shape 2 of Transfer Roller> In the present invention, the pitch of the grooves of the transfer roller is preferably 1 Ομηι or more from the viewpoint of easily forming the surface shape of the transfer roller. 5 0 μηη or more. However, in other preferred embodiments of the present invention, when the pitch interval Ρ of the grooves is 50 μm to 500 μm, and preferably 200 μm to 5 μm, it is suitable. The groove depth is preferably 3 μm to 50 Ομηι. When the pitch interval and the groove depth are satisfied, the shape of the transfer roller can be continuously imparted to the continuous resin sheet even if the continuous resin sheet does not satisfy the surface temperature with respect to the Vickers softening point to be described later. In particular, when the pitch interval Ρ is from 10 μm to 200 μm, even if a polypropylene resin is used as the resin, a continuous resin sheet having a transfer efficiency of a transfer mold shape can be produced. -13- 201002507 In another preferred embodiment, the shape of the transfer mold is, for example, a substantially semicircular groove having a substantially semicircular shape as shown in Fig. 2, and a spacing interval P between adjacent substantially semicircular grooves, From the viewpoint of facilitating the production of the transfer roller, it is generally suitable for a range of 10 μm or more, preferably 50 μm or more, and a pitch interval Ρ of 50 μη to 500 μm. Further, when the pitch interval 满足 is satisfied, when the groove depth Η of the substantially semicircular groove is in the range of 3 μm to 500 μm, the surface shape can be appropriately transferred. In the present invention, as shown in Fig. 1, the continuous resin sheet is supplied to the transfer roller after being passed through the second pressing roller 14, thereby imparting a surface shape. Therefore, in the method for producing a continuous sheet, the concave sheet can be concave. The upper limit of the groove depth is increased to 500 μm, and the above-mentioned substantially semicircle is not limited to a shape having a semicircular arc shape as shown in Fig. 2, and for example, as shown in Fig. 3, the cylinder may be parallel to the axis. And any one of the cross sections when the plane is not cut by the axis is an arc shape, or the cross section is a semi-elliptical arc shape, or a part of the semi-elliptical arc shape is a flat curved shape or the like. . The above-mentioned "substantially semi-circular groove" also includes such a substantially semicircular section of the groove. The shape of the transfer mold provided on the surface of the transfer roller is not limited to a groove having a substantially semicircular cross-sectional shape. For example, a plurality of V-shaped grooves (V-shaped recesses) are provided in parallel on the circumference of the transfer roller. The shape. The cross-sectional shape at this time is a triangle. The apex angle of the V-shaped groove (triangle) is generally 160. In the following, from the viewpoint of easy production, the pitch P of the V-shaped groove (triangle) of 40° or more is generally ΙΟμιη or more, and preferably 50 μm or more. In other preferred embodiments of the present invention, the pitch interval P is in the range of 50 μm to 50,000 μm, and more preferably 200 μm to 500 μm. The surface shape of the transfer roller can be formed by applying a plating process such as chrome plating, copper plating, nickel plating, nickel-plated phosphorous or the like to the surface of a metal press roll such as stainless steel or steel, and then using a diamond cutter or metal. The grinding wheel or the like is used for the removal processing, or the laser processing or chemical etching is used to process the shape, but it is not limited to these methods. The surface state of the transfer roller can be subjected to plating treatment such as chrome plating, copper plating, nickel plating, nickel plating phosphorous or the like after the surface shape is processed, for example, without impairing the accuracy of the surface shape. The intended surface shape transfer resin sheet can be produced by transferring the surface shape of the transfer roller to the continuous resin sheet. The obtained surface-shaped transfer resin sheet ' is generally cut into a sheet shape after cooling, and is used, for example, as a visibility-increasing sheet constituting a liquid crystal display device. Further, when a light diffusing agent is used as the resin, it can be used as a light diffusing plate having a shape transferred to the surface. The uneven portion of the transfer light surface described above is, for example, a shape in which a plurality of V grooves are provided in parallel. The apex angle of the V-groove is generally 160. In the following, from the viewpoint of easy production, it is generally 40. the above. The pitch of the ν groove is generally ΙΟμηι or more, and is preferably 5 〇 or more from the viewpoint of easily producing a transfer roller. The manufacturing method of the present invention is 'suitable' in the range of a pitch of 1 〇 μηη to 2 〇〇 _ further, when the pitch is set to 50 μm to 500 μΙη, more preferably 200 μm to 5 μmηη, even if The groove depth is set to 3 μm to 500 μm, and the transfer rate of the surface shape can be made -15 - 201002507. <Vickers softening point> In the manufacturing method of the present invention, when the transfer roller satisfies the surface shape 1, the surface temperature of the continuous resin sheet which is in close contact with the transfer roller is preferably the above-mentioned continuous resin sheet The Vickers softening point of the resin is also higher by 20 ° C to 6 (temperature of TC. Here, when the surface temperature of the above resin sheet is adjusted by the Vickers softening point of the resin, the transfer roller can be appropriately adjusted The temperature is adjusted by adjusting the temperature of the second pressing roller 14 and adjusting the rotation temperature of the second pressing roller 14 and the transfer roller 15. The surface of the continuous resin sheet on the surface in close contact with the transfer roller When the Vickers softening point of the resin of the above-mentioned continuous resin sheet is less than 20 ° C, the resin is solidified by cooling, so that the transfer rate cannot be sufficiently increased. On the other hand, if it exceeds 60 ° C, it is difficult to have high precision. In particular, when the pitch P of the surface shape of the transfer roller is 1 Ομιη to 200 μm, the temperature of the continuous resin sheet can be set higher than the Vickers softening point of the resin as described above. 0 Temperature of C~6 0 ° C, can be more satisfactorily achieve the effect of the present invention. Examples thereof include the following embodiments of the present invention is based in more detail, but the present invention is not limited thereto. <Raw material> -16- 201002507 Translucent resin A: Styrene resin (refractive index 1 · 5 9 , Vickers softening point 106.8 ° C) Translucent resin B: MS resin (styrene/methacrylic acid A) Ester = 80 parts by mass / 20 parts by mass, refractive index of 1.57, and Vickers softening point of 102.1) Crystalline resin C1: propylene-ethylene random copolymer resin ("Sixon Chemical Co., Ltd.", "FSX20L8", propylene unit content: 99 mass % or more, ethylene unit content: 1% by mass or less) UV absorber: benzotriazole-based UV absorber (2,2'-extension of methyl [6-(2H-benzotriazol-2-yl)-4) - (1,1,3,3-tetramethylbutyl) phenol] ("Adekastab LA31" manufactured by ADEKA)) Light stabilizer: Hindered amine light stabilizer (manufactured by Chiba Specialty Chemicals Co., Ltd., "Tinuvin XT 8 5 5FF") Nucleating agent: organic phosphate nucleating agent (phosphoric acid 2,2 '-extended methyl bis(4,6-di-tert-butylphenyl) sodium ("Adekastab ΝΑΙ 1" manufactured by ADEKA)) Oxidant: phosphorus-based antioxidant (tris(2,4-di-tert-butylphenyl) phosphite (manufactured by Chiba Specialty Chemicals Co., Ltd.) Irg168 )) <Masterbatch> Surface layer masterbatch: 98.7 parts by mass of the crystalline resin Cl, 0.5 parts by mass of the ultraviolet absorber (L A3 1 ), and 0.5 parts by mass of the light stabilizer (Tinuvin XT 8 5 5FF ) 〇 _ 1 part by mass of a nucleating agent (Adekastab -17-201002507 NA 1 1 ), and 0.2 parts by mass of an antioxidant (I rg 1 6 8 ) were dry blended to prepare a blend. The blend was placed in a supply hopper of a 65 mm twin-screw extruder, melt-kneaded in a cylinder at 22 5 ° C to 2 60 ° C, extruded into a strand and spheroidized to obtain a small Spherical surface masterbatch Μ A. Intermediate layer masterbatch Μ B: dry blending of 9 4 parts by mass of crystalline resin C 1 '2.0 parts by mass of nucleating agent (AdekastabNAll) and 4.0 parts by mass of antioxidant (Irg 168 ) Compound. The blend is put into a hopper of a 65 mm twin-screw extruder, melt-kneaded in a cylinder of 225 ° C to 260 ° C, and then extruded into a linear shape and spheroidized to obtain a small spherical shape. Intermediate layer masterbatch MB. <Transfer Roller 1 > Semicircular Groove: In the present embodiment and the comparative example, the cross-sectional shape of the copying mold of the semicircular groove applied to the specific surface of the transfer roller, unless otherwise specified (Fig. 2) ), the spacing interval (P ) = 1 1 8.2 ( μ m ), the flat portion between the convex sounds | 3 = 15.2 ( μιη ), the distance from the groove to the apex (Η ) = 48.5 ( μιη), the tube length and The ratio of the width (Α = Η / Ρ) = the shape of the lenticular lens of the size of 0.41, and each groove portion is formed in parallel at equal intervals (pitch intervals). Here, the cylindrical lens shape, which is also referred to as a cylindrical lens, is a lens having a shape of a part of a cylinder (see Fig. 3). For example, it means that the column is divided into two shapes in the axial direction. Rough surface: the shape of the rough surface applied to the transfer mold is such that the arithmetic mean roughness Ra is 7.55 μm, and the average roughness Rz of the rough surface is 39.17 μm. ^如为-18- 201002507 1 1 4 μηι 〇 <Example 1> The light-transmitting resin was melt-kneaded in a first extruder having a temperature of 190 to 260 ° C in a cylinder and supplied to a separator. On the other hand, the translucent resin B is melt-kneaded in a second extruder having a temperature of 190 to 26 (TC), and is supplied to a separator. The supply is supplied from the first extruder to the sub-extractor. The resin of the layerer becomes the main layer, and the resin supplied from the second extruder to the layerer becomes a surface layer (double-sided of the main layer), and co-extrusion is performed at a temperature of the extruded resin of 26 0 °C. By pressing and cooling with a pressing roller, a continuous resin sheet (S1) made of a three-layer laminated plate having a thickness of 2.0 mm was produced. Further, in the above molding, two pressing rolls were used, and the pressing was performed for pressing. The continuous resin sheet discharged from the machine is provided with a first pressing roller on the upper side and a second pressing roller on the lower side. Further, the continuous resin sheet (S1)' is cooled while being in close contact with the second pressing roller and being conveyed. Then, it is pressed by the second pressing roller and the transfer roller. At this time, a substantially semicircular groove is formed on the circumference of the roller surface of the transfer roller, and the upper surface of the surface of the continuous resin sheet (S1) is transferred. The opposite mode of the semicircular groove, and the surface shape is obtained The resin sheet (S1) is printed. The temperature of each of the press rolls is set to the temperature of the first press roll (a) = 95. (:, the temperature of the second press roll (b) = 105 ° c 'Transfer The temperature of the roll (c) = 1081: In addition, the rotation speed (r) of the two transfer rolls and one transfer roll and the resin take-up roll is set to 58.58 rpm ° -19-201002507 The surface temperature of the resin in contact with the surface of the printing roller was 127 t. The transfer rate of the shape transferred to the surface shape transfer resin sheet (S 1 ) was 79%. The above surface temperature of the resin was infrared. [Measurement of the surface shape transfer resin sheet] The surface shape transfer resin sheet (S 1 ) obtained was cut, and the cross section was mirror-finished, and the microscope was measured in an ultra-depth shape [KEYENCE CORPORATION] VK-8 5 00"] observes and measures the distance (N) from the start of the groove of the opposite mold transferred to the substantially semicircular groove of the surface to the apex, and then the groove from the cross section of the copying die (transfer die) In the distance (Η) from the beginning to the apex, by the following formula (1) The transfer rate 々 (%) was calculated. β = N / Hxl 00 ( % ) (1) The results are shown in Table 1. <Example 2> The temperature of each of the press rolls at the time of the above molding was set to the temperature of the first press roll (a) = 9 5t: the temperature of the second press roll (b) = l 〇 3 ° C, transfer The temperature of the roll (c) = 107 °C. Further, the rotation speed (r ) = 65.65 rpm of two pressing rolls and one transfer roller and the resin drawing roller was set to obtain a continuous resin sheet (S2 ) having a thickness of 2.0 mm, and other things. The same operation as in Example 1 was carried out. The surface temperature of the resin of the surface of -20-201002507 which is in close contact with the transfer roller during the above molding is 135 °C. The transfer rate of the shape transferred to the surface-shaped transfer resin sheet (S2) was 75%. <Example 3> The light-transmitting resin A was melt-kneaded in a first extruder having a temperature of 190 to 260 ° C in a cylinder, and supplied to a separator. On the other hand, the light-transmitting resin B was melt-kneaded in a second extruder having a temperature of 190 to 260 ° C in the cylinder and supplied to the separator. The resin supplied from the first extruder to the layerer becomes the main layer, and the resin supplied from the second extruder to the layerer becomes the surface layer (double-sided of the main layer) at the temperature of the extruded resin Co-extrusion molding was carried out at 260 ° C, and pressing and cooling were performed by a pressing roller to thereby produce a continuous resin sheet (S3 ) composed of a three-layer laminate having a thickness of 2.0 mm. Further, in the above molding, the two pressing rolls are used to press the continuous resin sheet discharged from the extruder, and the first pressing roller is disposed on the upper side, and the second pressing roller is disposed on the lower side. Further, the continuous resin sheet (s 3 )' is cooled while being in close contact with the second pressing roller and being conveyed, and then pressed by the second pressing roller and the transfer roller. At this time, the rough surface is formed on the entire surface of the roller surface of the transfer roller, and the opposite surface of the rough surface is transferred on the upper surface side of the surface layer of the continuous resin sheet (S3) to obtain a surface shape transfer resin sheet (S 3 ). The temperature of each of the press rolls during the above forming is set to the temperature of the first pressing roll (a) = 95 ° C, the temperature of the second pressing roll (b) = 95 ° C, and the temperature of the transfer roll (c) = 1 0 9 °C. In addition, it is set to two pressing rolls and one -21 - 201002507. The rotation speed (r) of the transfer roller and the resin drawing roller is 0.59 rpm. The above-mentioned degree of the resin which is in contact with the transfer roller at the time of the above molding is 1 30 °C. The surface shape transfer resin sheet was transferred (the shape 'Ra' was 4.16 μm, and Rz was 20·6 μmη'. The above-mentioned rough surface uniform length Sm was 173 μm. <Comparative Example 1 > When the same operation as in Example 1 was carried out to obtain a continuous resin (S4), two pressing rolls were used, as shown in Fig. 5, for the continuous resin sheet discharged from the extruder The first roller is disposed on the upper side and the transfer roller is disposed on the lower side. Further, the continuous resin sheet (S4) is adhered to the transfer roller and cooled while being conveyed, and then pressed by the transfer light pressing roller. At this time, a substantially groove was formed on the circumference of the roller surface of the transfer roller, and the opposite mold of the large circular groove was transferred on the lower surface side of the surface layer of the continuous resin sheet (S4), and a surface shape of a thickness of 2.0 mm was obtained. Sheet (S4). The temperature of each of the press rolls at the time of the above molding was set to the first pressing temperature (a) = 95 ° C, the temperature of the second pressing roll (b) = 108 ° C, and the temperature of the roll (c) = 105 °C. Further, the rotation speed (r ) of the two light transfer rollers and the resin drawing roller was set to 0.58 rpm. The above surface temperature of the resin which is in contact with the transfer roller at the time of molding is °C. The shape of the surface-transferred resin sheet (S4) transferred to the above-mentioned surface shape was 39.0%. The flat sheet of surface temperature S3 ) is pressed and pressed, and the transfer of the semi-printed tree roller with the first semicircle is 1 with the above 255 turn -22- 201002507 <Comparative Example 2 > When the same operation as in Example 1 was carried out to obtain a continuous resin sheet (S5), two pressing rolls were used, as shown in Fig. 5, 'for continuous pressing from the extruder In the resin sheet, a first pressing roller is disposed on the upper side, and a transfer roller is disposed on the lower side. Further, the continuous resin sheet (S 5 ) is cooled while being adhered to the transfer roller and conveyed, and then pressed by the transfer roller and the second pressing roller. At this time, a substantially semicircular groove is formed on the circumference of the roller surface of the transfer roller, and a reverse mold of a substantially semicircular groove is transferred on the lower surface side of the surface layer of the continuous resin sheet (S 5 ) to obtain a surface having a thickness of 2.0 mm. Shape transfer resin sheet (S 5 ). The temperature of each press roll during the above forming is set to the temperature of the first pressing roll (a) = 95 ° C, the temperature of the second pressing roll (b) = 108 ° C, and the temperature of the transfer roller (c) = 10 5 °C. Further, the rotation speed (r) of the two pressing rolls and one of the transfer rolls and the resin drawing rolls was set to 0.65 rpm. The surface temperature of the resin in the surface in contact with the transfer roller at the time of molding described above was 255 t. The transfer ratio of the shape transferred to the surface shape transfer resin sheet (S 5 ) was 24.0%. <Comparative Example 3 > The light-transmitting resin A was melt-kneaded in a first extruder having a temperature of iQO to 260 °c in the cylinder and supplied to a separator. On the other hand, the light-transmitting resin B was melt-kneaded in a second extruder having a temperature of 190 to 260 ° C in the cylinder and supplied to the separator. -23- 201002507 The resin supplied from the first extruder to the layerer becomes the main layer, and the resin supplied from the second extruder to the layerer becomes the surface layer (double-sided of the main layer). The extrusion resin was subjected to co-extrusion at a temperature of 260 ° C, and pressed and cooled by a pressing roller to prepare a continuous resin sheet (S6) composed of a three-layer laminate having a thickness of 2.0 mm. Further, in the above molding, two pressing rolls are used, and in order to press the continuous resin sheet discharged from the extruder, the first pressing roller is disposed on the upper side and the second pressing roller is disposed on the lower side. Further, the continuous resin sheet (S6)' is cooled while being in close contact with the second pressing roller and being conveyed, and then pressed by the second pressing roller and the transfer roller. At this time, the rough surface was formed on the entire surface of the roller surface of the transfer roller, and the opposite surface of the rough surface was transferred on the upper surface side of the surface layer of the continuous resin sheet (S6) to obtain a surface shape transfer resin having a thickness of 2.0 mm. Sheet (S 6 ). The temperature of each press roll during the above forming is set to the temperature of the first pressing roll (a) = 90 ° C 'The temperature of the second pressing roll (b) = 9 4 ° C, the temperature of the transfer roller (c) = 1 1 0 °C. Further, the rotation speed (r ) of the two pressing rolls and the one transfer roller and the resin drawing roller was set to 0.59 rpm. The surface temperature of the resin on the surface in contact with the transfer roller at the time of molding described above was 1 15 °C. The shape transferred to the surface shape transfer resin sheet (S6) was Ra of 1.61 μηι, RZ was 8.86 μπι > and the average length Sm of the rough surface was 306 μm. <Comparative Example 4 > When the same operation as in Example 1 was carried out to obtain a continuous resin sheet (S7), two pressing rolls were used, in order to press a continuous resin sheet of -24-201002507 discharged from the extruder, The first pressing roller is disposed on the upper side on the transfer roller. Further, the continuous resin sheet (S7) is cooled while being adhered to the conveyance, and then pressed by the transfer and the second pressing. At this time, a surface is formed on the entire surface of the roller surface of the transfer roller, and a reverse mold is transferred on the upper surface side of the surface layer of the continuous resin sheet (S 7 ) to obtain a surface shape transfer resin sheet (S 7 ). The temperature of each of the press rolls at the time of the above formation was set to the first temperature (a) = 8 2 ° C. The temperature of the second press roll (b) = 1 1G The temperature of the roll (c) = 9 2 °C. Further, it is set as the above-mentioned surface temperature of the resin which is pressed against the surface of the transfer roller by the rotational speed (r) of the two transfer rollers and the resin take-up roller. The transfer to the surface shape transfer resin sheet (S 7 ) is 2_60 μηι' Rz of 11·7 μm, and the average length of the above-mentioned raw sugar noodles is 2 5 2 μηι ° <Comparative Example 5 > When the same operation as in Example 1 was carried out to obtain continuous (S 8 ), two pressing rolls were used, and in order to press the continuous resin sheet from the pressing, the transfer roller was disposed on the upper side, Press the roller on the lower side. Further, the continuous resin sheet (S8) is cooled while being adhered to the roller and conveyed, and then pressed by the first pressing roller and the roller. At this time, a transfer roller on the lower side is disposed on the entire surface of the roller surface of the transfer roller, and the roller is pressed by the above-mentioned rough and rough surface, and one transfer roller is provided. The above-mentioned shape is 24 5 ° C, and the Ra degree S m is the first first press of the discharge of the resin sheet machine. The second press is pressed. The rough -25 - 201002507 surface is transferred on the upper surface of the surface of the continuous resin sheet (s 8). The surface shape transfer resin sheet (S 8 ) is obtained by the rough opposite mold. The temperature of each of the press rolls during the above forming is set to a temperature at which the first temperature (a) = 95 ° C and the temperature of the second press roll (b) = 97 ° c ' (Ο = 1 1 〇 ° C. 'The system is set to two pressing roller transfer and the resin is pulled at a light rotation speed (r) = 0_55 rpm. The above-mentioned surface temperature of the resin which is in close contact with the transfer roller is "transferred to the above surface shape". The transfer resin sheet (S 8 ) is in the form of 〇82μηη, Rz is 2·93μηι, and the rough surface has an average length of 5 3 2μηι °. The transfer roller of the rough surface of the pressure roller and one of the above-mentioned -2 4 5 ° C shape, Ra; Sm is -26- 201002507 ss] Shape transfer rate (%) σ> Bu LO r- σ> co 1 speed (rpm) 〇0 in ο 0. 65 1 0.58 1 0. 65 Pressure roller temperature Rc) Transfer roller g τ~· 5 m τ-— g Second g CO o Ln Ο g First pressing roller in a> ITD LO 03⁄4 LO σ> Resin temperature before transfer rc) (Sj m CO T— · ΙΟ in CM LO LO CM 樘温度 temperature rc) § CM o CO 04 O CD § 04 Position of the transfer roller 濉 3rd 1st 2nd 1 2nd Embodiment 1 1 Example 2 Comparison 1 Comparison Example 2 Μ m Sm (&quo t;m) CO y— CD 宕CM in CM Csi CO Lf> di smm di Rz ("m) 20.6 03⁄4 od 1 T— ▼— CT> cvi Ra ("m) CNJ CD CO cvi oo o 1 pull Take 1 speed (rpm) σ> LO o 1 0.59 1 1 0. 55 I 0. 55 Press roll temperature (°c) Transfer roll g Ο τ — or — o Second LO s 04 σ> σ σ> First Press roller LO σ> § CN oo LO CT> s te S 骢IW· 1 · ·^ ·^ * · -^ Resin temperature (°C) LD τ—in LO 樽 County temperature (°C) g CVI s CSJ g CNJ g CNJ Position of the transfer roller 3rd, 3rd, 2nd, 1st, 3rd Embodiment 3 1 Comparative Example 3" 1 Comparative Example 4 1 Comparative Example 5 27- 201002507 Transfer Roller of Table 1 and Table 2 The column is sequentially set to the first, second, and third from the press rolls of the mold close to the extruder. Regarding Examples 1-3 and Comparative Example 3, the first one in the first drawing is the first pressing roller, the second one is the second pressing roller, and the third one is the transfer roller. With respect to Comparative Examples 1, 2 and 4, the press roll temperature of the transfer roller was simply displayed in the column of the second press roller, and the press roll temperature of the second press roll was displayed in the column of the transfer roller. <Average Average Roughness Ra Measurement Method> The arithmetic mean roughness Ra was measured in accordance with Jis BO60 1 - 1 994. In other words, the arithmetic mean roughness Ra of the rough surface of the transfer mold and the rough surface of the surface shape transfer resin sheet was measured using a surface roughness meter ("SJ-201P" manufactured by Mitutoyo Co., Ltd.). The measurement condition of the surface roughness meter was set to a cutoff 値: 2.5x5. <Ten point average roughness Rz measurement method> The ten point average roughness Rz was measured in accordance with JIS BO601 · 1 994. In other words, the ten-point average roughness Rz of the rough surface of the transfer mold and the rough surface of the surface shape transfer resin sheet was measured using a surface roughness meter ("SJ-201P" manufactured by Mitutoyo Co., Ltd.). The measurement condition of the surface roughness meter was set to a cutoff 値: 2.5x5. <Average length Sm measurement method> The average length S m was measured in accordance with JI S Β Ο 6 0 1 - 1 9 9 4 . In other words, the surface roughness meter ("SJ-20 1 P" manufactured by Mitutoyo Co., Ltd.') was used to measure the average length Sm of the rough surface of the stamp and the rough surface of the surface shape transfer resin sheet of -28-201002507. The measurement conditions of the surface roughness meter are set to cut off: 2.5 <Evaluation result 1 > Example 1 and Comparative Example 1 'The draw temperature was constant (0.58 rpm) and the resin temperature before transfer was set to 135 ° C and 255 ° C, respectively, since Comparative Example 1 It is much higher than the Vickers softening point of the resin (1 02 · 1 °C), so the shape transfer rate is 39% lower. In Example 2 and Comparative Example 2, the drawing speed was constant (0.65 rpm) and the resin temperature before transfer was set to 135 C and 255 t, respectively, since Comparative Example 2 was farther than the Vickers softening point of the resin (1). 〇2· 1 °C) The temperature is still high, so the shape transfer rate is as low as 24%. In Example 3 and Comparative Example 3, the pulling speed was constant (0.59 rpm) and the resin temperature before transfer was set to 13 ° C and 115, respectively. (: Since the difference between the Vickers softening point (102.1 °C) of Comparative Example 3 and the resin was about 1 31, the roughness Ra and Rz of the rough surface were smaller than those of Example 3. <Transfer Roller 2 > Further, the transfer roller is formed by each of the substantially semicircular grooves A to D having the shape described in the third table. In the third table, P, d, and H are the respective distances of the cross-sectional shape of the copying mold of the substantially semicircular groove shown in Fig. 2, and the 1"$ gastric septum P" is the distance between the groove bottoms of the adjacent grooves. "Width d of the flat portion" -29- 201002507 is the width of the flat portion between the adjacent grooves, and the "groove depth Η" is the distance between the circumference of the transfer mold surface and the flat portion. In addition, the "depth to width ratio" is the ratio of the groove depth Η to the pitch interval ρ / P. Each of the substantially semicircular grooves Α to D is in the shape of the above lenticular lens. V-groove: The cross-sectional shape of the copying mold applied to the V-shaped groove of the transfer mold (Fig. 4) is shown in Table 5. The "pitch interval P" is the distance between the groove bottoms of the adjacent grooves, the "groove depth Η" is the vertical distance from the apex angle of the groove, and "Θ" is the angle (the apex angle) of the apex of the V-shaped concave portion. Each of the V-shaped grooves Ε Η Η shown in Table 5 is in the shape of a 稜鏡 lens (corner lens), and as shown in Fig. 4, each groove portion is formed in parallel at equal intervals (pitch interval Ρ). Hereinafter, an embodiment in which the above-described substantially semicircular grooves D to D and V-shaped grooves E to Η are used as the surface shape of the transfer roller, respectively, will be described. <Example 4> The light-transmitting resin was melt-kneaded in a first extruder having a temperature of 190 to 25 ° C in a cylinder and supplied to a separator. On the other hand, the light-transmitting resin B was melt-kneaded in a second extruder having a temperature of 190 to 250 ° C in a cylinder, and supplied to a separator. The resin supplied from the first extruder to the layerer becomes the main layer, and the resin supplied from the second extruder to the layerer becomes the surface layer (double-sided of the main layer) at the temperature of the extruded resin Co-extrusion molding at 25 ° C and pressing and cooling with the pressing shown in Fig. 1 to produce a continuous resin sheet formed of a three-layer laminate having a thickness of 2.0 mm - 30 - 201002507 (S9) ° In the production of the continuous resin sheet (S9), in order to press the continuous resin sheet discharged from the extruder, the first pressing roller 13 is disposed on the upper side of the sheet, and the second pressing roller is disposed on the lower side. 1 4. After being pressed by the first pressing roller 13 and the second pressing roller 14, the surface is adhered to the surface of the second pressing roller 14 and conveyed, and is cooled at this time. Then, it is pressed by the second pressing roller 14 and the transfer roller 15 having a transfer mold on the surface. The transfer roller 15 is formed with a substantially semicircular groove A shown in the third table as a transfer mold on the surface, and the continuous resin sheet (S9) is pressed by the second pressing roller 14 and the transfer roller 15. The upper side of the surface layer was transferred with the opposite mold of the substantially semicircular groove A, and the surface shape transfer resin sheet (S 9 ) was obtained. The temperature of each roller surface at the time of the above production was adjusted so that the first pressing roller 13 was 70 ° C, the second pressing roller 14 was 88 ° C, and the transfer roller 15 was 94 °C. The shape transfer rate τ of the shape transferred to the surface shape transfer resin sheet (S 9 ) obtained in Example 4 was 9 0.4%. <Example 5> A continuous resin sheet formed of a three-layer laminate was obtained in the same manner as in Example 4 except that the pressing of the pressing roller was adjusted so that the thickness of the continuous resin sheet was 1.5 mm. (S 1 0 ). At this time, a substantially semicircular groove A is formed on the circumference of the light surface of the transfer roller 15, and an opposite mold of the substantially semicircular groove a is transferred on the upper surface side of the surface layer of the continuous resin sheet (S 1 0) to obtain a surface. Shape transfer resin sheet (S 1 〇). -31 - 201002507 The shape transfer rate 转印 of the shape of the surface shape transfer resin sheet (S 1 0) obtained in Example 5 was 96.1%. <Example 6> The light-transmitting resin A was melt-kneaded in a third extruder at a temperature of 190 to 25 ° C in the cylinder and supplied to a separator. On the other hand, the light-transmitting resin B was melt-kneaded in a fourth extruder having a temperature of 190 to 250 ° C in the cylinder, and supplied to a delaminator. The resin supplied from the third extruder to the layerer becomes the main layer, and the resin supplied from the fourth extruder to the layerer becomes the surface layer (double-sided of the main layer) at the temperature of the extruded resin Co-extrusion molding was carried out at 25 ° C, and pressing and cooling were performed by a pressing roll, thereby producing a continuous resin sheet (S11) composed of a three-layer laminated plate having a thickness of 2.0 mm. Further, in the above-described manufacturing, three pressing rollers are used, and in order to press the continuous resin sheet discharged from the extruder, the first pressing roller 1 3 ' is disposed on the upper side, and the second pressing roller 14 is disposed on the lower side. Further, the continuous resin sheet (S11) is cooled while being in close contact with the second pressing roller 14 and being conveyed, and then adhered to the transfer roller 15 and transported, and then pulled to the fourth pressing roller (not shown in the drawing) ). At this time, between the second pressing roller 14 and the transfer roller 15 and between the transfer light 15 and the fourth pressing roller, the continuous resin sheet is not pressed, and a void is formed. A substantially semicircular groove B is formed on the circumference of the roller surface of the transfer roller, and an opposite mold of the substantially semicircular groove B is transferred on the upper surface side of the surface layer of the continuous resin sheet (S11) to obtain a surface shape transfer resin sheet ( s 1 1 ) -32- 201002507 The temperature of each roller surface at the time of manufacture is adjusted so that the temperature of the first pressing roller 13 is 78 ° C. The temperature of the second pressing roller 14 is 78 ° C, and the transfer roller 15 The temperature is 9 8 °C. The shape transfer rate Τ' of the shape of the surface shape transfer resin sheet (S11) obtained in Example 6 was 78.6%. <Example 7> A continuous three-layer laminate having a thickness of 1.5 mm was obtained in the same manner as in Example 6 except that the pressing of the pressing roller was adjusted so that the thickness of the continuous resin sheet was 1.5 mm. The resin sheet (S12) is formed with a substantially semicircular groove B on the circumference of the roller surface of the transfer roller 15, and a reverse mold of a substantially semicircular groove B is transferred on the upper surface side of the surface layer of the continuous resin sheet (S1 2 ), The shape transfer rate T at which the surface shape transfer resin sheet (S 1 2 ) was transferred to the shape of the surface shape transfer resin sheet (S12) obtained in Example 7 was 92.8%. <Comparative Example 6 > As shown in Fig. 5, a transfer mold was formed on the surface of the second pressing roller 34 without being on the transfer roller, and the cooling temperature was changed other than that. The same operation as in Example 5 was carried out to obtain a continuous resin sheet (S 1 3 ) having a thickness of 1.5 mm. The continuous resin sheet (S 1 3 ) is cooled while being intimately attached to the second pressing roller 14 as a transfer roller of -33 - 201002507, and is then drawn to the third pressing roller 35 and conveyed. At this time, a gap is formed between the transfer roller and the third pressing roller 35, and the continuous resin sheet is not pressed between the pressure rollers. A substantially semicircular groove C is formed on the circumference of the roller surface of the transfer roller, and a reverse mold of a substantially semicircular groove C is transferred on the lower surface side of the surface layer of the continuous resin sheet (s 13 3) to obtain a surface shape transfer resin. The sheet (S 1 3 ) 〇 The temperature of each roller surface at the time of manufacture is adjusted so that the temperature of the first pressing roller 33 is 50 ° C, and the temperature of the second pressing roller 34 (transfer roller) is 80 t, the third pressing The temperature of the roller 35 was 90 °C. The shape transfer rate T of the shape of the surface shape transfer resin sheet (S 1 3 ) obtained in Comparative Example 6 was 3 0 · 0%. <Example 8> In the same manner as in Example 4 except that the transfer mold and the cooling temperature were changed, the third pressing roller was provided with a transfer mold (refer to Fig. 1), and the pressing roller and the transfer roller were used. Pressing and cooling were performed to obtain a continuous resin sheet (S14) formed of a three-layer laminate having a thickness of 2.0 mm. A substantially semicircular groove C is formed on the circumference of the roller surface of the transfer roller, and a reverse mold of a substantially semicircular groove C is transferred on the lower surface side of the surface layer of the continuous resin sheet (S 14 ) to obtain a surface shape transfer. Resin sheet (S 1 4 ) ° The temperature of each roller surface at the time of manufacture is adjusted so that the temperature of the first pressing roller -34 - 201002507 I3 is 7 ° C. The temperature of the second pressing roller 14 is i 〇 8 〇 c The temperature of the third pressing roller 15 is 88. (: The shape transfer rate τ transferred to the shape of the surface shape transfer resin sheet (S 14 ) obtained in Example 8 was 4 〇. 〇 %. <Comparative Example 7 > A substantially semicircular groove D' was formed on the circumference of the light surface of the transfer roller. Otherwise, the same operation as in Comparative Example 6 was carried out to obtain a surface shape transfer having a thickness of 1.5 mm. Resin sheet (sl5). The shape transfer rate τ of the shape of the surface shape transfer resin sheet (S 15 ) obtained in Comparative Example 17 was 4 8 · 〇 %. <Example 9> The same operation as in Example 8 was carried out to obtain a surface shape transfer having a thickness of 2.0 mm, except that a substantially semicircular groove D' was formed on the circumference of the roll surface of the transfer roller. Resin sheet (S16). The shape transfer rate τ of the shape of the surface shape transfer resin sheet (S 16 ) obtained in Example 9 was 6 5.0%. <Example 1> 95 > After 95 parts by mass of the crystalline resin C1 and 5 parts by mass of the intermediate layer masterbatch MB were dry blended, the temperature in the cylinder was 190 to 260. (: The first extruder is melt-kneaded and supplied to the delaminator. On the other hand, the surface master batch MA is in the cylinder at a temperature of 190 to 260 °C, the second -35-201002507 extruder Melt kneading is carried out and supplied to the layerer. The crystalline resin C1 supplied from the first extruder to the layerer and the intermediate layer masterbatch MB are dry blended to become the main layer, from the second extrusion The surface master batch MA supplied by the press to the layerer is a double-sided (surface layer) of the above-mentioned main layer, and is co-extruded at a temperature of the extruded resin of 250 ° C, and the pressing roll shown in Fig. 1 is used. Pressing and cooling were performed to produce a continuous resin sheet (S7) composed of a three-layer laminate having a thickness of 1.5 mm. In order to press the continuous resin sheet (S17), in order to press the continuous discharge from the extruder In the resin sheet, the first pressing roller 13 is disposed on the upper side of the sheet, and the second pressing roller 14 is disposed on the lower side. The first pressing roller 13 and the second pressing roller 14 are pressed, and then adhered to the second sheet. Second, the surface of the roller 14 is pressed and carried, and is cooled at this time. Then by the second The pressing roller 14 and the transfer roller 15 having a transfer mold on the surface are pressed. On the transfer roller, a V-shaped groove E shown in Table 5 is formed as a transfer mold, and the second pressing roller 14 is formed. When the transfer roller 15 is pressed, the convex portion and the concave portion of the V-shaped groove E shown in FIG. 4 are transferred to the upper surface side of the surface layer of the continuous resin sheet (S17), and the surface shape is changed. Printed resin sheet (S 17).

上述製造時各輥表面的溫度，係調整成第一按壓輥 1 3爲8 0°C，第二按壓輥1 4爲7 8 °C，轉印輥1 5爲1 1 5 °C <實施例1 1 > -36- 201002507 使用形成有第5表所示的V字凹槽F之轉印輥作爲轉印模，除此之外，其他與實施例1 0相同而製造出表面形狀轉印樹脂薄片（S 1 8 )。 <實施例1 2 > 使用形成有第5表所示的V字凹槽G之轉印輥作爲轉印模，除此之外，其他與實施例1 0相同而製造出表面形狀轉印樹脂薄片（s 1 9 )。 <實施例1 3 > 使用形成有第5表所示的V字凹槽Η之轉印輥作爲轉印模，除此之外，其他與實施例1 〇相同而製造出表面形狀轉印樹脂薄片（S20 )。 <實施例1 4 > 係調整按壓輥的按壓使連續樹脂薄片的厚度成爲 1.0mm，並且變更各按壓輥的表面溫度，除此之外，其他與實施例1〇相同而獲得由3層的層合板所形成之表面形狀轉印樹脂薄片（S 2 1 )。此時，於轉印輥1 5之輥表面的圓周上形成有第5表所示之V字凹槽E作爲轉印模，在連續樹脂薄片（s 2 1 )表層的上面側轉印有第4表所示之 V字凹槽E的凸部與凹部爲相反之模，而獲得表面形狀轉印樹脂薄片（S21 )。上述製造時各輥表面的溫度，係調整成第一按壓車昆 -37- 201002507 1 3 爲 1 0 〇 °C 1 1 9 〇C 。第二按壓輥 W爲98 °C，第三按壓輥15爲 <實施例1 5 > 使用开/成有第5表所示的V字凹槽F之轉印輥作爲轉印模’除此之外’其他與實施例」i 4相同而製造出表面形狀轉印樹脂薄片（S22)。 <實施例1 6 > 使用形成有第5表所示的v字凹槽G之轉印輥作爲轉印模，除此之外，其他與實施例1 4相同而製造出表面形狀轉印樹脂薄片（S 2 3 )。 <實施例1 7 > 使用形成有第5表所示的V字凹槽Η之轉印輥作爲轉印模，除此之外，其他與實施例Μ相同而製造出表面形狀轉印樹脂薄片（S 2 4 )。 -38 - 201002507 【喪城】深寬比A CO Ο 0.42 I o 0.36 迷 114.8 115.3 o 〇 g 平坦部寬度d (um) LO cd CSI CO cr>_ CSI o o iri 間距間隔P (^m) 248.1 272.1 o £5 140.0 大致半圓凹槽 <c 03 o 〇【f城3 形狀轉印率 (%) § CD OO CO csi σ> 〇〇〇 Ο 〇 to ς〇墼輥溫度（。〇 m 濉 OO σ> oo σ> § 00 OO § oo oo 11 濉〇〇〇〇 CO oo 00 oo § g T— § g 1 塒〇 ο co oo s o g ο 大致半圓凹槽 < •c CO CO o o ο ο 轉印輥的位置第3個第3個第3個第3個第2個丨第3個第2個第3個板厚 (mm) 〇 CSJ i〇 Ο cvj in LO Ο csi LO Ο cxi 實施例4 實施例5 實施例6 實施例7 比較例6 實施例8 比較例7 實施例9 -39- 201002507 ΘThe temperature of each roller surface at the time of manufacture is adjusted so that the first pressing roller 13 is 80 ° C, the second pressing roller 14 is 78 ° C, and the transfer roller 15 is 1 15 ° C. Example 1 1 > -36- 201002507 The surface shape was changed in the same manner as in Example 10 except that the transfer roller formed with the V-shaped groove F shown in Table 5 was used as the transfer mold. Printed resin sheet (S 18). <Example 1 2 > Surface transfer was carried out in the same manner as in Example 10 except that a transfer roller formed with the V-shaped groove G shown in Table 5 was used as the transfer mold. Resin sheet (s 1 9 ). <Example 1 3 > Surface transfer was carried out in the same manner as in Example 1 except that a transfer roller having a V-groove Η shown in Table 5 was used as a transfer mold. Resin sheet (S20). <Example 1 4> The thickness of the continuous resin sheet was changed to 1.0 mm, and the surface temperature of each of the pressing rolls was changed, and other layers were obtained in the same manner as in Example 1 The surface shape formed by the laminate is a transfer resin sheet (S 2 1 ). At this time, the V-shaped groove E shown in the fifth table is formed as a transfer mold on the circumference of the roller surface of the transfer roller 15, and the transfer is performed on the upper surface side of the surface layer of the continuous resin sheet (s 2 1 ). The convex portion and the concave portion of the V-shaped groove E shown in Table 4 are opposite to each other, and the surface shape transfer resin sheet (S21) is obtained. The temperature of each roller surface at the time of manufacture is adjusted to be 1 0 〇 °C 1 1 9 〇C for the first press brake car -37-201002507 1 3 . The second pressing roller W is 98 ° C, and the third pressing roller 15 is <Example 15 > Using a transfer roller having a V-shaped groove F shown in Table 5 as a transfer die The surface shape transfer resin sheet (S22) was produced in the same manner as in the other embodiments. <Example 1 6 > Surface transfer was carried out in the same manner as in Example 14 except that the transfer roller formed with the v-groove G shown in Table 5 was used as the transfer mold. Resin sheet (S 2 3 ). <Example 1 7> A surface transfer printing resin was produced in the same manner as in Example 使用 except that a transfer roller having a V-shaped groove 所示 shown in Table 5 was used as a transfer mold. Sheet (S 2 4 ). -38 - 201002507 [Lone City] Aspect Ratio A CO Ο 0.42 I o 0.36 Fan 114.8 115.3 o 〇g Flat section width d (um) LO cd CSI CO cr> _ CSI oo iri Spacing interval P (^m) 248.1 272.1 o £5 140.0 Approximate semicircular groove <c 03 o 〇[f city 3 shape transfer rate (%) § CD OO CO csi σ> 〇〇〇Ο 〇to ς〇墼 roll temperature (.〇m 濉OO σ&gt ; oo σ> § 00 OO § oo oo 11 濉〇〇〇〇CO oo 00 oo § g T— § g 1 埘〇ο co oo sog ο roughly semicircular groove < •c CO CO oo ο ο transfer roller Position 3rd 3rd 3rd 3rd 2nd 丨 3rd 2nd 3rd plate thickness (mm) 〇CSJ i〇Ο cvj in LO Ο csi LO Ο cxi Example 4 Example 5 Example 6 Example 7 Comparative Example 6 Example 8 Comparative Example 7 Example 9 -39- 201002507 Θ

OS ouOS ou

OS ou (01¾ ) 1¾ 001OS ou (013⁄4 ) 13⁄4 001

OOCVJ 99 (m/y) dffiwl圈酲 001 001OOCVJ 99 (m/y) dffiwl circle 001 001 001

OOCSJOOCSJ

I 班3^>I class 3^>

|s5 ο in σ> Ο ίη σ> o LO 0¾ o iri σ> o LO σ> 〇 iri σ> 〇 LO σ> o in 壓輥溫度ΓΟ 111 濉 in Τ·" ιη r~- LO LO Oi cn cr> T— σ> π m οο CO oo oo 00 σ> oo σ> oo σ> oo Ο) 1 濉 § g § § o T- o o o o ο v字凹槽 UJ ϋ- ◦ 工 LU LL. ◦ 工拉取速度 (m-min·1) CO CO CO CO 另 CO 异 CO ΓΟ ΓΟ 板厚 (mm) LO τ— ΙΓ> r· LO LO o r— o r· o r-· 〇 r— Ο CNI CO LO CO i lllll « _(辑華 V〇 . I -------- 濉濉 -40- 201002507 第4表及第6表中，壓輥溫度的「第一」、「第二」、「第三」，分別相當於第1圖或第5圖所示之按壓輥，例如，關於第1圖，「第一」爲第一按壓輥13，「第二」爲第二按壓輥14，「第三」爲第三按壓輥（實施例中爲轉印輥1 5 )。從第4表及第6表的結果中可得知，上述實施例1 〇〜實施例17中所製造之表面形狀轉印樹脂薄片（Si7)〜（ S24 )，其形狀轉印率分別爲95%，實施例中，其轉印率 (轉印性能）特別優良。本發明之轉印樹脂薄片的製造方法及製造裝置，由於轉印薄片與表面形狀的精度高，且轉印速度快，所以可廣泛地運用於液晶顯示器等之擴散薄片等。以上係詳細說明本發明，但此僅爲用以例示而非用以限定，可明瞭的是，本發明之範圍係由下列申請專利範圍所解釋。【圖式簡單說明】第1圖爲本發明之轉印樹脂薄片的製造裝置之槪略圖。第2圖爲顯示藉由本發明的製造方法中所使用之轉印輥的表面凹槽將轉印模轉印後之連續樹脂薄片表面的剖面形狀之槪略圖。第3圖爲柱狀透鏡的形狀之槪略圖。第4圖爲轉印了施加在轉印輥表面上之V字凹槽之 -41 - 201002507 連續樹脂薄片表面的剖面形狀之槪略圖。第5圖爲以往之轉印樹脂薄片的製造裝置之槪略圖【主要元件符號說明】 8 :柱狀透鏡 1 〇 :擠壓機 1 1 :樹脂薄片 1 2 :模具 1 3 :第一按壓輥 1 4 :第二按壓輥 1 5 :轉印輥 -42-|s5 ο in σ> Ο ίη σ> o LO 03⁄4 o iri σ> o LO σ> 〇iri σ> 〇LO σ> o in pressure roller temperature ΓΟ 111 濉in Τ·" ιη r~- LO LO Oi cn Cr> T_ σ> π m οο CO oo oo 00 σ> oo σ> oo σ> oo Ο) 1 濉§ g § § o T-oooo ο v-word groove UJ ϋ- ◦ LU LL. ◦ Take speed (m-min·1) CO CO CO CO Other CO Different CO ΓΟ 板 Plate thickness (mm) LO τ— ΙΓ> r· LO LO or — or· o r-· 〇r— Ο CNI CO LO CO i Lllll « _(《华华V〇. I -------- 濉濉-40- 201002507 In the 4th and 6th tables, the first, second and third of the pressure roller temperature For example, in the first drawing, "first" is the first pressing roller 13, and "second" is the second pressing roller 14, "third." It is a third pressing roller (transfer roller 15 in the embodiment). From the results of the fourth table and the sixth table, the surface shape transfer produced in the above-mentioned Embodiment 1 to Example 17 can be known. Resin flakes (Si7) ~ (S24), the shape transfer rate of which is 9 5%, in the examples, the transfer rate (transfer performance) is particularly excellent. The method and apparatus for producing a transfer resin sheet of the present invention have high precision in transfer sheet and surface shape, and have a high transfer speed. Therefore, the present invention can be widely applied to a diffusion sheet or the like of a liquid crystal display or the like. The present invention is described in detail above, but is merely illustrative and not intended to be limiting, and the scope of the present invention is defined by the following claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing a manufacturing apparatus of a transfer resin sheet of the present invention. Fig. 2 is a view showing a surface groove of a transfer roller used in the manufacturing method of the present invention. A schematic view of the cross-sectional shape of the surface of the continuous resin sheet after the transfer of the stamp. Fig. 3 is a schematic view showing the shape of the lenticular lens. Fig. 4 is a view showing the transfer of the V-shaped groove applied to the surface of the transfer roller. -41 - 201002507 A sketch of the cross-sectional shape of the surface of the continuous resin sheet. Fig. 5 is a schematic view of a conventional apparatus for manufacturing a transfer resin sheet [Description of main components] 8: lenticular lens 1 挤压: extruder 1 1 : Resin sheet 1 2 : Mold 1 3 : First pressing roller 1 4 : Second pressing roller 1 5 : Transfer roller -42-

Claims

201002507 VII. Patent application scope: 1 . A method for manufacturing a transfer resin sheet, which is a continuous resin sheet which is continuously extruded from a mold in a heated and molten state, sandwiched between a first pressing roller and a second pressing roller The continuous resin sheet is cooled in a state of being in close contact with the second pressing roller, and then sandwiched between the second pressing roller and a transfer roller adjacent to the second pressing roller, thereby turning the rotation A method for manufacturing a transfer resin sheet in which a surface shape of a printing roller is transferred to a continuous resin sheet, characterized in that: a plurality of grooves are formed on a surface of the transfer roller, and a groove bottom of the adjacent groove is formed in the cross-sectional shape The interval P is set to ΙΟμιη to 5 00 μm, and the groove depth Η of the groove is set to 3 μm to 5 00 μm. The method for producing a transfer resin sheet according to the first aspect of the invention, wherein a surface temperature of the continuous resin sheet which is in contact with the transfer roller is a Vickers of the resin of the continuous resin sheet ( Vicat) The softening point is also higher than the temperature of 20 °C ~ 60 °C. 3. The method for producing a transfer resin sheet according to the second aspect of the invention, wherein the groove bottom spacing P of the groove is set to 10 μm to 200 μm, and the groove depth η of the groove is set to 3 μm to 2 〇〇μιη. 4. The method for producing a transfer resin sheet according to the second aspect of the invention, wherein a plurality of substantially semicircular grooves having a substantially semicircular cross-sectional shape are formed on a surface of the transfer roller, adjacent to each other. The groove bottom spacing 半 of the semicircular groove is set to 1 〇 μηη to 200 μπι, and the groove depth Η of the substantially semicircular groove is set to 3 μm to 200 μm. The method of manufacturing a transfer resin sheet according to the second aspect of the invention, wherein a triangular groove having a triangular shape is formed in a surface of the transfer roller, and the triangular groove is formed. The setting is 40 to 160 degrees, and the P between adjacent groove grooves is ΙΟμιη to 200μπι. 6. The method for producing a transfer tree according to the second aspect of the invention, wherein a rough rough surface is formed on a surface of the transfer roller, and an arithmetic mean roughness Ra is set to 1 μm. The ten point average roughness Rz is set to 5 ~ 50 μιη. The transfer tree manufacturing method according to the first aspect of the invention, wherein the groove bottom spacing is set to be 200 μm or more and 500 μm or less, and the groove depth of the groove is 3 μπι to 500 μmη ° 8 The method for producing a transfer tree according to the seventh aspect of the invention, wherein the groove has a cross-sectional shape of a substantially half. The method for producing a transfer tree according to claim 7, wherein the groove is cut. The apex angle of the triangular shape is 40 ° to 1 60 °. The method for producing a transfer tree according to claim 7, wherein the resin is a polypropylene resin, and the bottom spacer is set to 1 Ομηη to 2 00 μm, and the groove has a groove depth of 3 μm to 500 μm. . 1 1 . A manufacturing apparatus for transferring a resin sheet, comprising: preparing a continuous resin sheet by extruding a resin in a heated and molten state; and setting a plurality of bottom surface groove angles S Ρ setting a rough surface of the fat sheet, the η 〜1 0 μηι The round shape of the 5 μιη fat flakes was set to be more than the crucible set to the fat flakes. The thickness of the groove of the triangular grease film is set to: a continuous mold; -44-201002507 and lightly pressed; and by sandwiching the aforementioned continuous resin sheet between the pressing roller and the pressing roller The transfer roller having a surface shape transferred to the continuous resin sheet is characterized in that: the transfer roller is formed with a plurality of grooves on the surface, and the groove bottom interval P of the groove is set to ΙΟμηη to 500 μm, the groove The groove depth Η is set to 3 μm to 500 μm. The apparatus for producing a transfer resin sheet according to the above aspect of the invention, wherein the groove has a triangular cross-sectional shape, and a apex angle of the triangle is 40. ~1 6 0. . -45-