Composite thermal transfer sheet

Abstract

A composite thermal transfer sheet is disclosed, having a thermal transfer sheet comprising a substrate film and a heat-fusible ink layer disclosed on surface side thereof, a transfer receiving material, and a temporary adhesive layer capable of peelably bonding the heat-fusible ink layer of the thermal transfer sheet to the transfer-receiving material, wherein the temporary adhesive layer comprises adhesive particles having a low glass transition temperature, wax particles and resin particles having a high glass transition temperature.

What is claimed is:  
     
         1 . A composite thermal transfer sheet comprising: a thermal transfer sheet comprising a substrate film and a heat-fusible ink layer disposed on one surface side thereof; 
 a transfer-receiving material; and a temporary adhesive layer capable of peelably bonding the heat-fusible ink layer of the thermal transfer sheet to the transfer-receiving material, wherein the temporary adhesive layer comprises adhesive particles having a low glass transition temperature, wax particles and resin particles having a high glass transition temperature.    
     
     
         2 . A composite thermal transfer sheet according to  claim 1 , wherein the adhesive particles have a glass transition temperature of −90° C. to −60° C., and the resin particles have a glass transition temperature of 60° C. or higher.  
     
     
         3 . A composite thermal transfer sheet according to  claim 1 , wherein the weight ratio among the adhesive particles, resin particles and wax particles are (3-5):(1-2.5):(3-5).  
     
     
         4 . A composite thermal transfer sheet according to  claim 1 , wherein the temporary adhesive has a thickness of 0.2 to 20 μm.  
     
     
         5 . A composite thermal transfer sheet according to  claim 1 , wherein the temporary adhesive layer comprises a dispersion comprising adhesive particles, resin particles and wax particles.  
     
     
         6 . A composite thermal transfer sheet according to  claim 1 , wherein the adhesion strength between the thermal transfer sheet and the transfer-receiving material is in the range of 300 to 1500 g, when the adhesion strength is measured by cutting a sample having a width of 25 mm and a length of 55 mm, and subjecting the sample to measurement by means of a sliding friction meter (HEIDON-14, mfd. by Shinto Kagaku K.K.) at a pulling speed of 1800 mm/min.  
     
     
         7 . A composite thermal transfer sheet according to  claim 1 , wherein a hiding layer for hiding the heat-fusible ink layer is formed on at least one surface of the substrate film.  
     
     
         8 . A composite thermal transfer sheet according to  claim 7 , wherein the hiding layer comprises a colored mat layer.  
     
     
         9 . A composite thermal transfer sheet according to  claim 7 , wherein the hiding layer comprises a colored slip layer disposed on th e opposite side of the substrate film provided with the heat-fusible ink layer.  
     
     
         10 . A composite thermal transfer sheet according to  claim 1 , wherein the transfer-receiving material has a rigidity of 20 to 2500 gf/cm.  
     
     
         11 . A composite thermal transfer sheet according to  claim 10 , wherein the transfer-receiving material has an surface smoothness of 5 to 500 secs.  
     
     
         12 . A composite thermal transfer sheet according to  claim 10 , wherein the transfer-receiving material has a basis weight of 20 to 500 g/m 2  .  
     
     
         13 . A composite thermal transfer sheet comprising: a thermal transfer sheet comprising a substrate film and a heat-fusible ink layer disposed on one surface side thereof; a transfer-receiving material; and a temporary adhesive layer capable of peelably bonding the heat-fusible ink layer of the thermal transfer sheet to the transfer-receiving material, wherein at least one selected from interfaces between the respective layers, interiors thereof and surfaces thereof has been subjected to an antistatic treatment.  
     
     
         14 . A composite thermal transfer sheet according to  claim 13 , wherein an antistatic layer containing electroconductive carbon is disposed between the substrate film and the heat-fusible ink layer.  
     
     
         15 . A composite thermal transfer sheet according to  claim 13 , wherein an antistatic layer containing electroconductive carbon is disposed opposite to the heat-fusible ink layer with respect to the substrate film.  
     
     
         16 . A composite thermal transfer sheet according to  claim 13 , wherein the heat-fusible ink layer or the temporary adhesive layer contains electroconductive carbon.  
     
     
         17 . A composite thermal transfer sheet according to  claim 14 , wherein the electroconductive carbon is porous.  
     
     
         18 . A composite thermal transfer sheet according to  claim 15 , wherein the electroconductive carbon is porous.  
     
     
         19 . A composite thermal transfer sheet according to  claim 16 , wherein the electroconductive carbon is porous.  
     
     
         20 . A composite thermal transfer sheet according to  claim 13 , wherein a hiding layer for hiding the heat-fusible ink layer is formed on at least one surface of the substrate film.  
     
     
         21 . A composite thermal transfer sheet according to  claim 13 , wherein the transfer-receiving material has a rigidity of 20 to 2500 gf/cm.  
     
     
         22 . A composite thermal transfer sheet comprising: a thermal transfer sheet comprising a substrate film and a heat-fusible ink layer disposed on one surface side thereof; a transfer-receiving material; and a temporary adhesive layer capable of peelably bonding the heat-fusible ink layer of the thermal transfer sheet to the transfer-receiving material, wherein the temporary adhesive layer comprises adhesive particles having a low glass transition temperature, wax particles and resin particles having a high glass transition temperature, and at least one selected from interfaces between the respective layers, interiors thereof and surfaces thereof has been subjected to an antistatic treatment.  
     
     
         23 . A composite thermal transfer sheet according to  claim 22 , wherein the adhesive particles have a glass transition temperature of −90° C. to −60° C., and the resin particles have a glass transition temperature of 60° C. or higher.  
     
     
         24 . A composite thermal transfer sheet according to  claim 22 , wherein the weight ratio among the adhesive particles, resin particles and wax particles are (3-5):(1-2.5):(3-5).  
     
     
         25 . A composite thermal transfer sheet according to  claim 22 , wherein the temporary adhesive has a thickness of 0.2 to 20 μm.  
     
     
         26 . A composite thermal transfer sheet according to  claim 22 , wherein the temporary adhesive layer comprises a dispersion comprising adhesive particles, resin particles and wax particles.  
     
     
         27 . A composite thermal transfer sheet according to  claim 22 , wherein an antistatic layer containing electroconductive carbon is disposed between the substrate film and the heat-fusible ink layer.  
     
     
         28 . A composite thermal transfer sheet according to  claim 22 , wherein an antistatic layer containing electroconductive carbon is disposed opposite to the heat-fusible ink layer with respect to the substrate film.  
     
     
         29 . A composite thermal transfer sheet according to  claim 22 , wherein the heat-fusible ink layer or the temporary adhesive layer contains electroconductive carbon.  
     
     
         30 . A composite thermal transfer sheet according to  claim 22 , wherein a hiding layer for hiding the heat-fusible ink layer is formed on at least one surface of the substrate film.  
     
     
         31 . A composite thermal transfer sheet according to  claim 22 , wherein the transfer-receiving material has a rigidity of 20 to 2500 gf/cm.  
     
     
         32 . A composite thermal transfer sheet comprising: a thermal transfer sheet comprising a substrate film and a heat-fusible ink layer disposed on one surface side thereof; a transfer-receiving material; and a temporary adhesive layer capable of peelably bonding the heat-fusible ink layer of the thermal transfer sheet to the transfer-receiving material, wherein the temporary adhesive layer comprises a wax and an adhesive resin having a low glass transition temperature.  
     
     
         33 . A composite thermal transfer sheet according to  claim 32 , wherein the adhesive resin have a glass transition temperature of −90° C. to −60° C.  
     
     
         34 . A composite thermal transfer sheet according to  claim 32 , wherein the weight ratio between the adhesive resin and wax are (0.5-1):(1-4.).  
     
     
         35 . A composite thermal transfer sheet according to  claim 32 , wherein the temporary adhesive has a thickness of 0.1 to 10 μm.  
     
     
         36 . A composite thermal transfer sheet according to  claim 32 , wherein the temporary adhesive layer comprises a dispersion including the adhesive resin and wax.  
     
     
         37 . A composite thermal transfer sheet according to  claim 32 , wherein the surface of the temporary layer is caused to have a minute unevenness shape.  
     
     
         38 . A composite thermal transfer sheet comprising: a thermal transfer sheet comprising a substrate film and two heat-fusible ink layers disposed on both sides thereof; a set of transfer-receiving materials; and temporary adhesive layers capable of peelably bonding each of the heat-fusible ink layers of the thermal transfer sheet to the corresponding transfer-receiving materials.  
     
     
         39 . A composite thermal transfer sheet according to  claim 38  wherein the temporary adhesive layer comprises adhesive particles having a low glass transition temperature, wax particles and resin particles having a high glass transition temperature.  
     
     
         40 . A composite thermal transfer sheet according to  claim 38 , wherein at least one of the transfer-receiving materials is transparent.  
     
     
         41 . A composite thermal transfer sheet comprising; a sheet-type thermal transfer sheet comprising a substrate film and a heat-fusible ink layer disposed on one surface side thereof; a transfer-receiving material having a substantially the same size as that of the sheet-type thermal transfer sheet; and a temporary adhesive layer capable of peelably bonding the heat-fusible ink layer of the thermal transfer sheet to the transfer-receiving material, wherein the thermal transfer sheet is fixed to the transfer-receiving material on at least one of the end portions thereof.  
     
     
         42 . A composite thermal transfer sheet according to  claim 41 , wherein notches are formed in a portion near the fixed portion of the thermal transfer sheet and the transfer-receiving material.  
     
     
         43 . A composite thermal transfer sheet according to  claim 41 , wherein the temporary adhesive layer comprises adhesive particles having a low glass transition temperature, wax particles and resin particles having a high glass transition temperature.  
     
     
         44 . A composite thermal transfer sheet according to  claim 41 , wherein at least one selected from interfaces between the respective layers, interiors thereof and surfaces thereof has been subjected to an antistatic treatment.  
     
     
         45 . A composite thermal transfer sheet according to  claim 41 , wherein a hiding layer for hiding the heat-fusible ink layer is formed on at least one surface of the substrate film.  
     
     
         46 . A composite thermal transfer sheet according to  claim 41 , wherein the transfer-receiving material has a rigidity of 20 to 2500 gf/cm.  
     
     
         47 . A composite thermal transfer sheet according to  claim 41 , wherein the surface of the temporary layer is caused to have a minute unevenness shape.  
     
     
         48 . A composite thermal transfer sheet according to  claim 41 , which has been cut from the thermal transfer material side.  
     
     
         49 . A composite thermal transfer sheet according to  claim 41 , wherein the transfer-receiving material has a curl prevention layer formed thereon.  
     
     
         50 . A composite thermal transfer sheet according to  claim 41 , wherein the curl prevention layer has a water-retaining property.  
     
     
         51 . A composite thermal transfer sheet according to  claim 41 , wherein the curl prevention layer has a sealing property.  
     
     
         52 . A composite thermal transfer sheet according to  claim 41 , wherein the adhesion strength between the thermal transfer sheet and transfer-receiving material is greater than the friction force between the back surface of the substrate film and the back surface of the transfer-receiving material.  
     
     
         53 . A composite thermal transfer sheet comprising: a thermal transfer sheet comprising a substrate film and a heat-fusible ink layer disposed on one surface side thereof; a transfer-receiving material; and a temporary adhesive layer capable of peelably bonding the heat-fusible ink layer of the thermal transfer sheet to the transfer-receiving material, wherein the thermal transfer sheet is fixed to the transfer-receiving material at the end portion of the outside of a roll of the composite thermal transfer sheet.  
     
     
         54 . A composite thermal transfer sheet according to  claim 53 , wherein either one of the thermal transfer sheet and transfer-receiving material is longer than the other member, and the end portion of the shorter member is fixed to the other member.  
     
     
         55 . A composite thermal transfer sheet according to  claim 53 , wherein an end portion-detecting mark is provided on either one of the thermal transfer sheet and transfer-receiving material in the vicinity of a core connected thereto.  
     
     
         56 . A composite thermal transfer sheet comprising: a thermal transfer sheet comprising a substrate film and a heat-fusible ink layer disposed on one surface side thereof; 
 a transfer-receiving material; and a temporary adhesive layer capable of peelably bonding the heat-fusible ink layer of the thermal transfer sheet to the transfer-receiving material, wherein the thermal transfer sheet is fixed to a tube for the winding thereof at the end portion of the outside of a roll of the composite thermal transfer sheet.    
     
     
         57 . A composite thermal transfer sheet according to  claim 56 , wherein the thermal transfer sheet is longer than the transfer-receiving material, and the end portion of the thermal transfer sheet is fixed to the winding tube.  
     
     
         58 . A composite thermal transfer sheet according to  claim 56 , wherein the end portion of the thermal transfer sheet is fixed to the winding tube by the medium of another film.  
     
     
         59 . A composite thermal transfer sheet according to  claim 56 , wherein an end portion-detecting mark is provided on either one of the thermal transfer sheet and transfer-receiving material in the vicinity of a core connected thereto.  
     
     
         60 . A composite thermal transfer sheet comprising: a thermal transfer sheet comprising a substrate film and a heat-fusible ink layer disposed on one surface side thereof; a transfer-receiving material; and a temporary adhesive layer capable of peelably bonding the heat-fusible ink layer of the thermal transfer sheet to the transfer-receiving material, wherein the transfer-receiving material has a rigidity of 20 to 2500 gf/cm.  
     
     
         61 . A composite thermal transfer sheet according to  claim 60 , wherein the transfer-receiving material has an surface smoothness of 5 to 500 sec.  
     
     
         62 . A composite thermal transfer sheet according to  claim 60 , wherein the transfer-receiving material has a basis weight of 20 to 500 g/m 2 .  
     
     
         63 . A composite thermal transfer sheet according to  claim 60 , wherein the temporary adhesive layer comprises adhesive particles having a low glass transition temperature, wax particles and resin particles having a high glass transition temperature.  
     
     
         64 . A composite thermal transfer sheet according to  claim 63 , wherein the adhesive particles have a glass transition temperature of −90° C. to −60° C., and the resin particles have a glass transition temperature of 60° C. or higher.  
     
     
         65 . A composite thermal transfer sheet according to  claim 63 , wherein the weight ratio among the adhesive particles, resin particles and wax particles and wax particles are (3-5):(1-2.5):(3-5).  
     
     
         66 . A composite thermal transfer sheet according to  claim 63 , wherein the temporary adhesive has a thickness of 0.2 to 20 μm.  
     
     
         67 . A composite thermal transfer sheet according to  claim 63 , wherein the temporary adhesive layer comprises a dispersion comprising adhesive particles, resin particles and wax particles.  
     
     
         68 . A composite thermal transfer sheet according to  claim 60 , wherein an antistatic layer containing electroconductive carbon is disposed between the substrate film and the heat-fusible ink layer.  
     
     
         69 . A composite thermal transfer sheet according to  claim 60 , wherein an antistatic layer containing electroconductive carbon is disposed opposite to the heat-fusible ink layer with respect to the substrate film.  
     
     
         70 . A composite thermal transfer sheet according to  claim 60 , wherein the heat-fusible ink layer or the temporary adhesive layer contains electroconductive carbon.  
     
     
         71 . A composite thermal transfer sheet according to  claim 60 , wherein a hiding layer for hiding the heat-fusible ink layer is formed on at least one surface of the substrate film.  
     
     
         72 . A package of a composite thermal transfer sheet comprising the composite thermal transfer sheet wound around a cylindrical core into a roll form, a container having openings on both sides and being capable of housing the roll, and a retention member for retaining the roll hung in the container; the composite thermal transfer sheet comprising a thermal transfer sheet comprising a substrate film and a heat-fusible ink layer disposed on one surface side thereof, a transfer-receiving material, and a temporary adhesive layer capable of peelably bonding the heat-fusible ink layer of the thermal transfer sheet to the transfer-receiving material; wherein the inside diameter has substantially the same shape as that of the openings disposed on both sides of the container, the retention member comprises a flange portion and a projection, and the projection is inserted into the opening of the container and the inside of the cylindrical core.  
     
     
         73 . A bag-type package comprising a humidity resistance-imparted bag and a composite thermal transfer sheet housed therein; the composite thermal transfer sheet comprising a sheet-type thermal transfer sheet comprising a substrate film and a heat-fusible ink layer disposed on one surface side thereof, a transfer-receiving material having substantially the same size as that of the sheet-type thermal transfer sheet, and a temporary adhesive layer capable of peelably bonding the heat-fusible ink layer of the thermal transfer sheet to the transfer-receiving material.