Method and device for producing laminated composite

Abstract

A polyolefin resin drawn sheet 4 is laminated on at least one face of a sheet-form core material 6 having a density of 30 to 300 kgf/m 3 . At this time, a sheet or film 5 made of a bonding synthetic resin or rubber having a flow starting temperature lower than the thermal deformation temperature of the core material 6 and the melting point of the drawn sheet 4 is interposed between the core material 6 and the drawn sheet 4. The resultant stack product is heated to not less than the flow starting temperature of the synthetic resin or the rubber and not more than the thermal deformation temperature of the core material 6 and the melting point of the drawn sheet 4. At the same time of or after the heating, the stack product is pressed to apply a compression strain of 0.01 to 10% to the core material 6.

1 .- 8 . (canceled)  
     
     
         9 . A device for producing a laminated composite by laminating a longitudinal sheet and a lateral sheet on at least one face of a core material, comprising: core supplying means for supplying the core material in a longitudinal direction; longitudinal sheet supplying means for supplying the longitudinal sheet for a face material in the longitudinal direction onto at least one face of the core material; lateral sheet supplying means for supplying the lateral sheet for the face material in a lateral direction onto the upper or lower face of the longitudinal sheet; and sheet thermocompression-bonding means for pressing the longitudinal sheet and the lateral sheet stacked in an orthogonal form against the core material under heating.  
     
     
         10 . A method for producing a laminated composite by laminating a longitudinal sheet and a lateral sheet on at least one face of a core material, comprising: a core supplying step of supplying the core material in a longitudinal direction, a longitudinal sheet supplying step of supplying the longitudinal sheet for a face material in the longitudinal direction onto at least one face of the core material; a lateral sheet supplying step of supplying the lateral sheet for the face material in a lateral direction onto the upper or lower face of the longitudinal sheet; and a sheet thermocompression-bonding step of pressing the longitudinal sheet and the lateral sheet stacked in an orthogonal form against the core material under heating.  
     
     
         11 . The device for producing a laminated composite according to  claim 9 , wherein at a position where the longitudinal sheet starts to contact a heating roll of the sheet thermocompression-bonding means the lateral sheet supplying means supplies a cut piece of the lateral sheet between the heating roll and the longitudinal sheet.  
     
     
         12 . The method for producing a laminated composite according to  claim 10 , further comprising: a lateral sheet supplying step of supplying a cut piece of the lateral sheet between a heating roll and the longitudinal sheet at a position where the longitudinal sheet starts to contact the heating roll during the sheet thermocompression-bonding step.  
     
     
         13 . The device for producing a laminated composite according to  claim 9  or  11 , wherein the longitudinal sheet supplying means is means for supplying upper side longitudinal sheets and lower side longitudinal sheets to be arranged alternatively in the lateral direction, and the lateral sheet supplying means is means for supplying plural lateral sheets successively between the upper side longitudinal sheets and the lower side longitudinal sheets so as to be arranged in parallel.  
     
     
         14 . The method for producing a laminated composite according to  claim 10  or  12 , wherein the longitudinal sheet supplying step is a step of supplying upper side longitudinal sheets and lower side longitudinal sheets to be arranged alternatively in the lateral direction, and the lateral sheet supplying step is a step of supplying plural lateral sheets successively between the upper side longitudinal sheets and the lower side longitudinal sheets so as to be arranged in parallel.  
     
     
         15 . The device for producing a laminated composite according to  claim 9 ,  11  or  13 , wherein the lateral sheet supplying means includes an attracting roll set at a position where the longitudinal sheet starts to contact the heating roll of the sheet thermocompression-bonding means, and single sheet supplying means for supplying cut pieces of the lateral sheet one by one to the attracting roll.  
     
     
         16 . The method for producing a laminated composite according to  claim 10 ,  12  or  14 , wherein the lateral sheet supplying step includes a single sheet supplying step of supplying cut pieces of the lateral sheet one by one to an attracting roll set at a position where the longitudinal sheet starts to contact the heating roll during the sheet thermocompression-bonding step.  
     
     
         17 . A device producing a laminated composite by laminating a longitudinal sheet and a lateral sheet on at least one face of a core material, comprising: core material supplying means for supplying the core material in a longitudinal direction; longitudinal sheet supplying means for supplying the longitudinal sheet for a face material, in the longitudinal direction, onto at least one face of the core material; first thermocompression-bonding means for pressing the longitudinal sheet and the core material under heating to form an intermediate lamination; first cutting means for cutting the intermediate lamination; carrying means for carrying cut pieces of the intermediate lamination in a direction having a given angle to the longitudinal direction; lateral sheet supplying means for supplying the lateral sheet for the face material, in the carriage direction, onto the upper face or the lower face of the cut pieces; second thermocompression-bonding means for pressing the cut pieces of the intermediate lamination and the lateral sheet, which are stacked, under heating to form a final lamination; and second cutting means for cutting the final lamination.  
     
     
         18 . A method for producing a laminated composite by laminating a longitudinal sheet and a lateral sheet on at least one face of a core material, comprising: a core material supplying step of supplying the core material in a longitudinal direction; a longitudinal sheet supplying step of supplying the longitudinal sheet for a face material, in the longitudinal direction, onto at least one face of the core material; a first thermocompression-bonding step of pressing the longitudinal sheet and the core material under heating to form an intermediate lamination; a first cutting step of cutting the intermediate lamination; a carrying step of carrying cut pieces of the intermediate lamination in a direction having a given angle to the longitudinal direction; a lateral sheet supplying step of supplying the lateral sheet for the face material, in the carriage direction, onto the upper face or the lower face of the cut pieces; a second thermocompression-bonding step of stacking and pressing the cut pieces of the intermediate lamination and the lateral sheet under heating to form a final lamination; and a second cutting step of cutting the final lamination.  
     
     
         19 . A device for producing a laminated composite by laminating a longitudinal sheet and a lateral sheet on at least one face of a core material, comprising: core material supplying means for supplying the core material in a longitudinal direction; longitudinal sheet supplying means for supplying the longitudinal sheet for a face material, in the longitudinal direction, onto at least one face of the core material; first thermocompression-bonding means for pressing the longitudinal sheet and the core material under heating to form an intermediate lamination; first cutting means for cutting the intermediate lamination; carrying means for rotating cut pieces of the intermediate lamination at an angle of 90° to carry the cut pieces in the longitudinal direction; lateral sheet supplying means for supplying the lateral sheet for the face material, in the longitudinal direction, onto the upper face or the lower face of the cut pieces; second thermocompression-bonding means for pressing the cut pieces of the intermediate lamination and the lateral sheet, which are stacked, under heating to form a final lamination; and second cutting means for cutting the final lamination.  
     
     
         20 . A method for producing a laminated composite by laminating a longitudinal sheet and a lateral sheet on at least one face of a core material, comprising: a core material supplying step of supplying the core material in a longitudinal direction; a longitudinal sheet supplying step of supplying the longitudinal sheet for a face material, in the longitudinal direction, onto at least one face of the core material; a first thermocompression-bonding step of pressing the longitudinal sheet and the core material under heating to form an intermediate lamination; a first cutting step of cutting the intermediate lamination; a carrying step of rotating cut pieces of the intermediate lamination at an angle of 90° to carry the cut pieces in the longitudinal direction; a lateral sheet supplying step of supplying the lateral sheet for the face material, in the longitudinal direction, onto the upper face or the lower face of the cut pieces; a second thermocompression-bonding step of stacking and pressing the cut pieces of the intermediate lamination and the lateral sheet under heating to form a final lamination; and a second cutting step of cutting the final lamination.