JPH10193888A - Partially reflective transfer sheet and manufacture of transfer sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent unnecessary heads from adhering to a material to be transferred by using a base sheet on which a partial pattern temporary bonded layer is applied, making a bead layer adhere in the partial design shape on the temporary bonding layer, and forming a given design pattern layer to which an ordinary pigment of plane shape different from that of the bead layer is added, and also forming a bonding layer. SOLUTION: A polyester film is used as a base sheet 4, and a design pattern of cellulose resin is printed on the surface of the film by screen printing, and a temporary bonded layer 2 is formed, and then a bead layer is formed on the surface of the base sheet 4 by using a bead adhesion device. Also a design pattern layer 5 is formed on the surface of the base sheet 4 on which the bead layer is formed in the partial design shape by screen printing. The design pattern layer 5 is composed of polyester resin or the like, and an ordinary color pigment is added to the layer. A bonding layer 6 composed of polyamide resin or the like is formed on the design pattern layer 5 by screen printing. The material to be transferred can be protected from the adhesion of unnecessary beads 3 by the arrangement.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a partially reflective transfer sheet in which unnecessary beads do not adhere to a material to be transferred at the time of thermal transfer. The present invention relates to a method for manufacturing a transfer sheet provided with an adhesive layer.

[0002]

2. Description of the Related Art As an existing sheet material, a bead sheet in which micro glass spheres are adhered to a surface of a base sheet such as paper or plastic film via a temporary adhesive layer on one side is commercially available. . For example, in Japanese Utility Model Publication No. 58-55024, Japanese Utility Model Application Laid-Open No. 59-184695 and Japanese Utility Model Application Laid-Open No. 62-65299, this type of bead sheet adhered to one side is used to partially print a design layer containing a color pigment on the bead surface. Further, a transfer sheet is manufactured by further providing an adhesive layer having the same planar shape as the design layer.

[0003] The above-mentioned sheet having a glass bead layer is used for school uniform, training wear, jogging wear,
When heat transfer is performed on shoes or the like, the transfer label has retroreflectivity with respect to the headlight irradiation of the vehicle, and it is possible to avoid the danger of school children and jockers encountering traffic accidents at dusk or at night. In recent years, not only foods and medicines but also the general public have been paying attention to all matters with safety. Therefore, the production and sales of retroreflective transfer sheets have been rapidly increasing, taking advantage of this trend.

[0004]

The retroreflective transfer sheet uses a bead sheet in which fine glass spheres are adhered to the entire surface of a base sheet. Is often contaminated. When small glass spheres with a particle size of about 100 μm enter into a cloth such as a knit, they cannot be easily removed with a brush or the like, and the remaining glass spheres on the finished product are not recognized in terms of safety, and are complicated. Must be removed by appropriate work.

To solve this problem, the registered utility model No. 30
In JP 23596, a colored coating layer is provided on a portion of the bead sheet where no adhesive layer exists, thereby preventing unnecessary glass balls from adhering to the material to be transferred during thermal transfer. In this transfer sheet, the adhesion of unnecessary glass spheres to the fabric is reduced, but the extra colored coating layer leads to an increase in the cost of the transfer sheet, and the fine glass that has entered the gap between the colored coating layer and the adhesive layer. The possibility of spheres remaining remains.

The present invention has been proposed in order to improve the above-mentioned problem relating to a conventional retroreflective sheet using a full-surface bead adhesive sheet. Unnecessary beads adhere to a transfer material during thermal transfer of the sheet. It is another object of the present invention to provide a partially reflective transfer sheet that can obtain a variety of label designs. It is another object of the present invention to provide a method for manufacturing a retroreflective transfer sheet at low cost and efficiently.

[0007]

In order to achieve the above object, in a transfer sheet 1 according to the present invention, as shown in FIG. 1, a base in which a temporary adhesive layer 2 of a partial pattern is applied to the entire surface of a base sheet 4 is provided. Using the sheet 4, the beads 3 are formed on the temporary adhesive layer.
To adhere the bead layer in a partial pattern. On this bead layer, as shown in FIGS. 2 and 3, a predetermined design pattern layer 5 to which a normal pigment having a different planar shape from that of the bead layer is added, and an adhesive layer 6 are provided. In the transfer sheet 1, the adhesive layer 6 is substantially equal to the planar shape of the label pattern, and constitutes the planar shape of the transfer label 7 (FIG. 3). In the design pattern layer 5, the main component of the ink is a reactive, thermosetting or thermoplastic resin such as temporal crosslinking or solvent crosslinking, and the adhesive layer 6 is a thermosetting or thermoplastic resin.

In the transfer sheet 1, the design pattern layer 5 is composed of a single or two or more pigment layers, and a part or all of the pattern layer may be a persistence generating layer to which a luminous pigment is added. FIG.
As is clear from FIG. 2, the white shielding layer 9 can be formed between the pattern layer 5 and the adhesive layer 6, and the white shielding layer shields the ground color of the colored material 11 to be transferred. Transfer sheet prospering on the material 11 to be transferred can be obtained. Although not shown, a black shielding layer may be interposed between the white shielding layer 9 and the adhesive layer 6, and the black shielding layer can further enhance the ground color shielding. It is also possible to interpose a relatively thick intermediate adhesive layer between the adhesive layer 6 and the white or black shielding layer 9.

In the sheet manufacturing method according to the present invention, the temporary adhesive layer 2 is formed in a partial pattern on the surface of the horizontal base sheet 4, and while the temporary adhesive layer is in a plastic state,
And the bead storage tank 12 (FIG. 4) approaches the inverted base sheet 4. Next, bead storage tank 1
The beads 3 in 4 are pressed to adhere to the temporary adhesive layer 2, and thereafter, the temporary adhesive layer 2 is dried to fix the beads 3 to the surface thereof. The base sheet 4 is removed from the bead attaching device 8 (FIG. 4), a predetermined symbol pattern layer 5 is formed, and then an adhesive layer 6 substantially equal to the planar shape of the entire symbol is provided.

In the bead adhering device 8 used in the present invention, an appropriate amount of beads 3 is continuously raised by pressing the sprinkle bar horizontally below the bead storage tank 12, and is pressed and adhered to the temporary adhesive layer 2. This sprinkle bar is composed of eight round bars arranged horizontally in the embodiment, but the number of the round bars can be from one to about thirty, and may be elliptical or rectangular in cross section. The bead attaching device 8
The base sheet 4 is sucked and fixed to an upper suction plate of a rotary stage having, for example, a rectangular cross section, and the temporary adhesive layer 2 of the base sheet 4 is fixed.
While the is in a plastic state, the rotary stage is rotated 180 degrees to turn the base sheet 4 upside down. Then, the bead storage tank 12 is raised from below, and the sprinkle bar is horizontally moved from below the bead fluidized bed, so that an appropriate amount of beads 3 is formed.
Is continuously raised, pressed against the temporary adhesive layer 2 and adhered thereto,
Thereafter, the rotary stage is further rotated by 90 degrees, the surface of the base sheet 4 in the vertical position is brushed, and unnecessary beads are removed by blow suction.

Although not shown, in the case where the bead attaching apparatus is constituted by an endless belt or the like instead of the above-mentioned rotary stage, support sheets on which a temporary adhesive layer is formed are sequentially mounted on the endless belt, and each support sheet is a bendable rectangle. What is necessary is just to fix it on a belt with a holding frame or a magnetic material. Below this belt, a bead storage tank, a heater, a rotating brush and a suction mechanism are arranged at predetermined intervals. The support sheet is removed and then attached sequentially above the endless belt, and the support sheet is turned over by running the belt.
Once each support sheet stops above the bead storage tank, the bead storage tank rises and the bead fluidized bed approaches,
Next, the sprinkle bar moves horizontally, and an appropriate amount of beads is continuously raised to adhere to the temporary adhesive layer.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A temporary adhesive layer 2 and a bead layer are formed in a partial pattern on the surface of a base sheet 4 (FIG. 1) by a sheet manufacturing method according to the present invention. An adhesive layer 6 is provided. The base sheet 4 is a flat material such as a resin film such as a polyester sheet, synthetic paper, celluloid, cellophane, or a metal sheet. The temporary adhesive layer 2 applied to the base sheet 4 may be a cellulose resin, a rosin, a silicone resin, an acrylic resin, or the like. Even if it is thermoplastic, it does not melt at the thermal transfer temperature. It is necessary that the material has a low adhesive strength and does not adhere to the design pattern layer 5.
The beads 3 used are glass beads, vinyl acetate beads, or the like, and the particle size is usually 20 to 100 μm.

In this sheet manufacturing method, the base sheet 4 needs to be turned over while the temporary adhesive layer 2 is in a plastic state. The temporary adhesive layer 2 in a plastic state includes a case where the adhesive is provided immediately after printing on the surface of the base sheet 4 and a case where the adhesive is imparted by heating or a solvent after curing. The base sheet 4 is automatically turned upside down by attaching it to a rotating stage 10 as illustrated in FIG. 4, and may be attached to an endless belt, an octagonal drum or a cylindrical drum instead of the rotating stage, or may be manually turned upside down. .

As exemplified in FIG. 5, the base sheet 4
Is turned over, the bead storage tank 12 is moved closer. The approach may be such that the bead storage tank 12 rises from below like the bead attaching device 8 or the base sheet 4 descends toward the fixed bead storage tank. The bead storage tank 12 may have a generally wide and shallow shape so that the bead fluidized bed 14 can be held.

The beads 3 in the bead storage tank 12 are pressed against the temporary adhesive layer 2 to adhere thereto. To attach the beads to the temporary adhesive layer 2, for example, the sprinkle bar 16
By horizontally moving below the 4, the elastic silicone rubber 18 is pushed up, and an appropriate amount of the beads 3 is continuously raised to make contact with the surface of the temporary adhesive layer 2. As shown in FIG. 7, the sprinkle bar 16 is composed of eight round bars which are horizontally adjacent to each other, and each of the round bars may be rotatable. In order to level the surface of the bead fluidized bed 14, a squeegee (not shown) having a length substantially equal to the width of the bead storage tank 12 is attached, and the squeegee is operated horizontally after the sprinkle bar 16 is horizontally moved. Good.

After attaching the beads 3 to the base sheet 4, the temporary adhesive layer 2 is dried, and the beads 3 are fixed to the surface of the temporary adhesive layer. In the bead attaching device 8 of FIG. 4, the rotating stage 10 is further rotated by 90 degrees after the beads 3 are attached, unnecessary beads are immediately removed from the surface of the base sheet 4 at the vertical position, and the base sheet 4 is removed from the device. After that, the temporary adhesive layer 2 is dried. The unnecessary bead removal step may be subsequent to the temporary adhesive layer drying step, and the temporary adhesive layer drying step may be set before and after the unnecessary bead removal step by applying a conveyor or an octagonal drum. A continuous working process may be achieved.

In the transfer sheet 1 according to the present invention, as shown in FIG. 2, after a bead layer is formed in a partial pattern on the surface of the base sheet 4, a predetermined pattern pattern layer 5 and an adhesive layer 6 are provided. Normal colored pigments and extender pigments can be added to the pattern layer 5. Pattern layer 5
Is a resin whose main component is a reactive, thermosetting or thermoplastic resin such as a temporal crosslinking or a solvent crosslinking, such as a polyurethane resin, a polyamide resin, a polyester resin,
It is an isocyanate resin alone or a mixture thereof, and may contain a plasticizer, a cross-linking agent, a silane coupling agent, or the like, if desired.

Although not shown, part or all of the design pattern layer 5 may be an afterglow generation layer to which a luminous pigment is added. The phosphorescent pigment added to the afterglow generating layer is, for example, a silver, copper, lead, manganese activator of zinc sulfide or a transition metal activator of another metal sulfide, and means a pigment that emits afterglow after light irradiation. . To this afterglow generation layer, other colored pigments or extenders may be added in addition to the above-mentioned phosphorescent pigments.

In this transfer sheet, as shown in FIG. 9, the white shielding layer 9 can be formed between the pattern layer 5 and the adhesive layer 6. The white shielding layer 9 is a relatively thin layer having the same or similar resin component as the pattern pattern layer 5,
Contains white pigments such as titanium oxide, barium sulfate and zinc white. The white shielding layer 9 optically shields the ground color of the colored transfer material 11 so that the transfer material 1 such as cloth can be used.
Even if 1 is a vivid color such as black or red or has a multicolor pattern, the design of the transfer label 7 prospers on the color transfer material 11.

Although not shown, in the transfer sheet of the present invention, a black shielding layer may be interposed between the white shielding layer 9 and the adhesive layer 6. The black shielding layer is a relatively thin layer having the same or similar resin component as the pattern layer 5, and contains a black pigment such as carbon black, ceramic black, and iron oxide. This black shielding layer is formed together with the white shielding layer 9 so that the colored transfer material 1
1 can further enhance the ground color shielding.

Further, a relatively thick intermediate adhesive layer is formed on the adhesive layer 6.
And the white or black shielding layer 9. Although this intermediate adhesive layer is a relatively thick layer having the same or similar resin component as the pattern layer 5, it is preferable to add a polyurethane resin to enhance elasticity. By interposing the intermediate adhesive layer, the cushioning property of the transfer label itself is increased, and the durability of the transferred material 11 against expansion and contraction can be increased.

Since the adhesive layer 6 is transferred only to the portion where the adhesive layer 6 is present, the adhesive layer is completely equal to or slightly larger than the planar shape of the label pattern, and the transfer label 7 (FIG. 3) Is formed. The adhesive layer 6 is a thermosetting or thermoplastic resin that can be adhered to the material to be transferred 11 such as a cloth by heating and pressing. For example, the adhesive layer 6 may be made of a polyurethane resin, a polyamide resin, a polyester resin, or the like, or a mixture thereof. is there. Pattern layer 5
The adhesive layer 6 may be formed by a known method such as screen printing, letterpress offset printing, intaglio offset printing, or flat plate printing, and the same applies to other layers such as the white shielding layer 9.

As illustrated in FIG. 10, the surface of the transfer sheet 1 is brought into contact with the surface of the material 11 to be transferred, and the transfer sheet 1 is heated at 80 to 200 ° C. by using a hot press or an iron.
Heat transfer and heat transfer for ~ 20 seconds for thermal transfer. Thereafter, when the base sheet 4 is peeled from the transfer material 11, a transfer label 7 having a light emitting pattern by the beads 3 in a part of the design pattern layer 5 is obtained as illustrated in FIG. When the above-mentioned afterglow generating layer is disposed below the beads 3, the light-emitting pattern has good retro-reflectivity for a long time and good visibility.

[0024]

Next, the present invention will be described based on examples, but the present invention is not limited to the examples. In the method of the present invention, a 100 μm thick polyester film is used as the base sheet 4, and the film has a thickness of 50 μm and a size of 500 × 600 mm. On the surface of the base sheet 4, a pattern of a cellulosic resin is printed by screen printing to form a temporary adhesive layer 2 having a thickness of 80 μm, and then a bead attaching device for forming a bead layer on the surface of the base sheet. 8 is used.

As shown in FIG. 4, the bead attaching device 8 includes a rotary stage 10 capable of adsorbing a plurality of base sheets 4, a bead storage tank 12 disposed below the rotary stage, and a bead storage tank 12 arranged below the bead storage tank. And eight sprinkle bars 16 that can move horizontally. As illustrated in FIG. 8, the rotating brushes 28 and 30 and the blow suction mechanism 3 that can travel in the vertical direction are
2 is arranged. Rotating stage 10, bead storage tank 12,
8 sprinkle bars 16, sheet retainers 20 and 22,
The rotating brushes 28 and 30 and the blow suction mechanism 32 operate synchronously with each other by a sequencer (not shown), and the other members are stopped when the rotating stage 10 rotates.
As soon as the rotary stage rotates 90 degrees and stops, the other members operate.

As is apparent from FIGS. 4 and 6, the rotary stage 10 has a rectangular parallelepiped shape having a square cross section capable of adsorbing the base sheet 4 on each of four sides, and has a large number of small through holes 24 on each side. The plates 26 are each detachably secured. No screw holes or counterbores are formed on the surface of each suction plate 26 in order to prevent the base sheet 4 from being damaged or deformed. Inside the rotary stage 10, the suction chambers (not shown) of the respective suction plates 26 are independent, and air suction / blowing operations can be performed for each suction plate 26. Usually, four sides of the rotary stage 10 have a size of 50.
A suction plate 26 of 0 × 600 mm is fixed, and 300 or more through holes 24 having a diameter of 1 mm are provided in the suction plate. The 1/4 rotation time of the rotary stage 10 is within 2 seconds, and the bead attachment time per sheet is about 10 seconds.

The rectangular sheet retainer 20 or 22 is provided between the rotary housing 10 and the bead storage tank 12 at a position below the rotary stage 10 and between the rotary brushes 28 and 30 at a position lateral to the rotary stage 10. Sheet presser 20,
Reference numeral 22 has a planar shape corresponding to the suction plate 26, and its inner size is slightly smaller than that of the base sheet 4. By fixing the rubber plate 33 to the back surfaces of the sheet holders 20 and 22, before the bead storage tank 12 approaches below the rotary stage 10, the rotary brushes 28 and
Before the vehicle 30 travels, the suction plate 2 surrounds the base sheet 4.
6 can be brought into close contact with the surface. Normally, the sheet pressers 20 and 22 press the outer periphery of the base sheet 4 within 5 mm, and the sheet presser 20 is an annular flat surface.
2 has an inverted U-shaped plane.

The bead storage tank 12 has a shallow rectangular planar shape corresponding to the planar shape of the suction plate 26, is positioned horizontally below the rotary stage 10, and is easily attached to and detached from the bead attaching device 8. Install as possible. Bead storage tank 12
Is installed so as to be able to ascend and descend so as to approach the horizontal suction plate 26 located below every time the rotary stage 10 rotates 90 degrees. At the front and rear portions of the bead storage tank 12, vertical walls are provided to prevent the beads 3 from flowing out when the sprinkle bar 16 moves horizontally. Normally, the bead storage tank 12 and the sprinkle bar 16 located below the storage layer are configured as one block, and the entire vertical movement distance of the block is 50 mm. The bead storage tank 12 has a depth of 3
A silicon rubber sheet 18 (thickness 1 mm, hardness 50
°). The sprinkle bar 16 has a diameter of 10 m.
It is made of a chrome-plated iron bar with a height of ± 10 mm with respect to the bat. Eight sprinkle bars are 100-500 mm /
Reciprocates horizontally in adjustable seconds.

For example, sprinkle bars 16 composed of eight round bars are fixed and held horizontally adjacent to each other below the bead storage tank 12 and are moved up and down together with the bead storage tank. The height position of the sprinkle bar 16 can be appropriately adjusted by double-sided or cantilevered support, and the sprinkle bar 16 is positioned below the bead storage tank 12 so that the sheet 18 can be pushed up when moved upward. The sprinkle bar 16
The length is slightly shorter than the width of the bead storage tank 12, and FIG.
As shown by the arrow, the bead storage tank 12 horizontally moves forward or backward over almost the entire vertical width.

As illustrated in FIG. 8, rotating brushes 28 and 3 running in the vertical direction are provided on the sides of the rotating stage 10.
0 and a blow suction mechanism 32, which have a length corresponding to the vertical width of the suction plate 26, and are movable in the horizontal and vertical directions. Rotating brush 28 or rotating brush 3
The rotation brush 30 and the blow suction mechanism 32 reciprocate after the rotary brush 28 reciprocates, respectively. Normally, the rotating brush 28
, 30 and the blow suction mechanism 32 are configured as one block, and the rotating brush 28 or the rotating brush 30 and the blow suction mechanism 32 operate independently, and the horizontal and vertical speed of the entire block can be adjusted at 100 to 500 mm / sec. is there. Wool having a length of 40 mm is radially implanted in the rotating brushes 28 and 30, and the number of rotations is 100 to 500 rpm.
Can be adjusted individually.

The rotating brushes 28 and 30 rotate in the direction of the arrow in FIG. 8, and attach a wiping rod (not shown) to each brush. The beads scraped off by the rotating brush 28 may be returned to the bead storage tank 12 by the guide 34 as shown in FIG. 8, or may be stored in another collection tank (not shown). On the other hand, the bead residue scraped off by the rotating brush 30 is sucked by the blow suction mechanism 32, collected by the dust collector 36, and then discarded.

In the bead attaching device 8, the rotation stage 10 is set to stop every time it rotates 90 degrees. With respect to the suction plate 26 positioned above, first, air is blown out to remove the base sheet on which the beads are attached. The base sheet 4 on which the temporary adhesive layer 2 is formed is adsorbed by the suction pad 39 of the intake sheet guide 38, and is conveyed by the guide. The base sheet 4 is placed on the suction plate 26 located above the rotary stage 10, and the air inside the suction chamber is evacuated to be sucked and fixed to the suction plate 26. In the bead attaching device 8, the rotating stage 10 is further rotated by 90 degrees to 9
When the base sheet 4 rotates by 0 degrees, the base sheet 4 is positioned below and turned upside down.

When the rotary stage 10 is further rotated by 90 degrees and the base sheet 4 is located below, the sheet presser 2
0 rises to bring the periphery of the base sheet 4 into close contact with the surface of the suction plate 26. Next, the bead storage tank 12 rises, and the surface of the bead fluidized bed 14 comes close to the base sheet 4 (FIG. 5).
And FIG. 7). Beads 3 stored in bead storage tank 12
Is a transparent glass sphere having a particle size of 20 to 100 μm. In this state, by moving the eight sprinkle bars 16 horizontally, an appropriate amount of the beads 3 is continuously raised and pressed to adhere to the temporary adhesive layer 2 of the base sheet 4. When the attachment of the beads is completed, the bead storage tank 12 and the sheet presser 20 are lowered.

When the rotation stage 10 is further rotated by 90 degrees and the base sheet 4 is positioned vertically, the sheet presser 22 advances from the side, and the periphery of the base sheet 4 is moved around the suction plate 2.
6 is adhered to the surface. Then, the rotating brush 28 moves forward, contacts the base sheet 4, descends to the lower end of the sheet, rises again to the upper end of the sheet, and then retreats to scrape off unnecessary beads. Further, the rotating brush 30 and the blow suction mechanism 32 advance, and the rotating brush 30 comes down to the lower end of the sheet after coming into contact with the base sheet 4, rises again to the upper end of the sheet, and then retreats to remove the bead residue.

When the rotary stage 10 finally rotates 90 degrees and the base sheet 4 is positioned again above, the air inside the suction plate is blown out to remove the base sheet 4 and the bead attaching operation is repeated. The removed base sheet 4
It is sucked by the suction pad of another take-out sheet guide (not shown) and carried out by the guide. The base sheet 4 having the beads 3 adhered to the temporary adhesive layer 2 is cured by using an appropriate heating furnace or by natural drying.
The beads 3 are fixed to the surface of the temporary adhesive layer, and the temporary adhesive layer 2 is cured by, for example, performing a heat treatment at 120 ° C. for 70 seconds through a heating furnace.

As shown in FIG. 2, a predetermined design pattern layer 5 and an adhesive layer 6 are further provided on the surface of the base sheet 4 in which the bead layer is formed in a partial design. As shown in FIG. 2, one or two or more design pattern layers 5 are provided on the bead layer of the base sheet 4 by screen printing. The pattern pattern layer 5 is composed of 11% by weight of a polyester resin, 50% by weight of a polyurethane resin, 11% by weight of an isocyanate resin, and 28% by weight of a yellow pigment. Screen print and dry at 40 ° C. for 20 minutes. Further, screen printing is performed twice using an ink containing a normal red pigment and then a blue pigment, thereby completing a predetermined pattern having a thickness of 5 to 10 μm as a whole.

Next, the adhesive layer 6 is formed on the pattern layer 5 by screen printing so as to have the same planar shape. The adhesive layer 6 is composed of 60% by weight of a polyamide resin and 40% by weight of a polyurethane resin, and is screen-printed with a paste-like thermoplastic ink using a 70-mesh screen plate. After drying at 40 ° C. for 20 minutes, the adhesive layer 6
Has a thickness of 60 to 100 μm.

As shown in FIG. 3, the surface of the transfer sheet 1 is brought into contact with the surface of the white cotton knit fabric 11 and heated and pressed at 160 ° C. for 10 seconds using a hot press.
Thereafter, when the base sheet 4 is peeled off from the cotton knitted fabric 11, a label design in which a part of the design pattern layer 5 is covered with a bead layer can be transferred. This transfer label is clearly retroreflected when illuminated with a vehicle light and is easily visible even from a distance.

Further, using the base sheet 4 described above, an afterglow generating layer to which a luminous pigment substantially equal to the planar shape of the bead layer of the partial pattern is added is formed. This afterglow generation layer,
The same resin component as that of the pattern layer 5 containing 75% by weight of a yellow luminous pigment, and a paste-like thermally crosslinkable ink containing 1%
The screen is printed in a predetermined pattern using a 00 mesh screen plate, and then dried at 40 ° C. for 20 minutes.

Further, a pattern pattern layer 5 is provided in the same manner as described above, and then a white shielding layer 9 (FIG. 9) is formed on the entire surface of the pattern pattern layer 5 by screen printing. The white shielding layer 9 is composed of 10% by weight of a polyester resin, 30% by weight of a polyurethane resin,
10% by weight of isocyanate resin and titanium oxide pigment 5
0% by weight, and paste-like heat-crosslinkable ink
Screen printing using a 0 mesh screen plate,
Further, it is dried at 40 ° C. for 20 minutes. Again, the same adhesive layer 6 as described above is provided, and the thickness of the adhesive layer is 60 to 100 μm.
It is.

As shown in FIG. 10, the surface of this transfer sheet is brought into contact with the surface of the black cotton knitted fabric 11, and heated and pressed at 160 ° C. for 10 seconds using a hot press. When the base sheet 4 is peeled off from the knitted fabric 11, a label design having the white shielding layer 9 on the lower side can be transferred. This transfer label is clearly retroreflected when illuminated with a vehicle light and is easily visible even from a distance. In this label, the white shield layer 9 optically shields the ground color of the black knitted fabric 11 to prosper the design.

[0042]

According to the transfer sheet of the present invention, by forming the bead layer only in a size equal to or smaller than the planar shape of the adhesive layer, that is, the label design, unnecessary glass spheres adhere to the transfer material during thermal transfer. Can be prevented. In this transfer sheet, since the light-emitting pattern by the retroreflection may be a part of the label design, the label design becomes diversified, and if only a part of the light-emitting pattern is made to have higher persistence, the design can be further diversified. This transfer sheet does not leave adhered beads in the cloth that is the material to be transferred, and can avoid the complicated work of removing beads.

In the sheet manufacturing method of the present invention, there is no need to provide an extra colored coating layer or the like, so that the manufacturing cost does not increase, and moreover, only a required amount of beads is attached to the temporary adhesive layer, which is very economical. It is a target. The method of the present invention is less affected by the shape and weight of the beads to be adhered compared to the bead adhesion method by sprinkling, the amount of beads adhered to the temporary adhesive layer is uniform over the whole, and the amount of adhered beads Is easy to adjust.

Further, in the method of the present invention, the beads are raised and adhered by the sprinkle bar, so that the method is less affected by the strength of the adhesive force of the temporary adhesive layer of the base sheet.
Even if the adhesive strength is somewhat weak, beads can be sufficiently adhered. In the method of the present invention, scattering of beads is reduced, and scattering to the surroundings in a factory is reduced, so that the working environment is less deteriorated.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing an example of a base sheet used in the present invention.

FIG. 2 is a schematic sectional view showing an example of a transfer sheet according to the present invention.

FIG. 3 is a schematic sectional view showing a state in which beads are attached to a temporary adhesive layer in the base sheet of FIG.

FIG. 4 is a schematic cross-sectional view showing a bead attaching device.

FIG. 5 is a partial cross-sectional view showing a state in which a bead storage tank approaches a base sheet that is sucked and fixed to a suction plate of a rotary stage.

FIG. 6 is a schematic longitudinal sectional view showing the bead attaching apparatus of FIG.

7 is a partial vertical sectional view showing an approaching state of the bead storage tank of FIG. 5;

FIG. 8 is a partial cross-sectional view schematically showing a rotating brush and a blow suction mechanism in the bead attaching device.

FIG. 9 is a schematic sectional view showing a modified example of the transfer sheet.

FIG. 10 is a schematic cross-sectional view illustrating a state in which the transfer sheet of the invention is thermally transferred to a material to be transferred.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transfer sheet 2 Temporary adhesive layer 3 Bead 4 Base sheet 5 Pattern layer 6 Adhesive layer 7 Transfer label 8 Bead attaching device

Claims (6)

[Claims] An ordinary pigment having a planar shape different from that of the bead layer by using a base sheet to which a temporary adhesive layer of a partial pattern is applied, pressing beads on the temporary adhesive layer to adhere the bead layer in a partial pattern. A partially-reflective transfer sheet having a predetermined design pattern layer to which is added, an adhesive layer substantially equal to the planar shape of the whole design, and a light-emitting pattern on a part or all of the label design. 2. Using a base sheet to which a temporary adhesive layer of a partial design is applied, pressing a bead onto the temporary adhesive layer to attach the bead layer in a partial design, and substantially changing the planar shape of the partial design of the bead layer. Along with forming a persistence generating layer to which a luminous pigment equal to the above is added, and forming a predetermined pattern pattern layer to which a normal pigment having a different planar shape from this bead layer is added, and furthermore, adhesion substantially equal to the planar shape of the entire pattern A partially reflective transfer sheet provided with a layer and having a highly luminous pattern in part or all of the label design. 3. Using a base sheet to which a temporary adhesive layer of a partial pattern is applied, pressing a bead onto the temporary adhesive layer to adhere the bead layer in a partial pattern, and to substantially match the planar shape of the bead row of the partial pattern. Along with forming the afterglow generating layer to which a luminous pigment equal to the above is added, and forming a predetermined pattern pattern layer to which a normal pigment having a different planar shape from the bead layer is added, furthermore, a white color substantially equal to the planar shape of the entire pattern A partially reflective transfer sheet provided with an adhesive layer via a shielding layer, having a highly luminescent pattern in part or all of the label design, and prospering on a colored cloth. 4. A temporary adhesive layer is formed in a partial pattern on the surface of a horizontal base sheet, and the base sheet is turned over while the temporary adhesive layer is in a plastic state. , The beads in the bead storage tank are pressed against and adhered to the temporary adhesive layer, and then the temporary adhesive layer is dried to fix the beads on the surface thereof. A method for manufacturing a transfer sheet, comprising forming an adhesive layer substantially equal to the planar shape of the entire pattern after forming the pattern layer. 5. A temporary adhesive layer is formed in a partial pattern on the surface of a horizontal base sheet, and the base sheet is turned upside down while the temporary adhesive layer is in a plastic state. By horizontally moving the sprinkle bar below the storage tank, an appropriate amount of beads are continuously raised, pressed against the temporary adhesive layer and adhered, and then the temporary adhesive layer is dried and the beads are fixed to the surface, and then A method for manufacturing a transfer sheet, comprising removing a base sheet from a bead attaching apparatus, forming a predetermined design pattern layer, and then providing an adhesive layer substantially equal to the planar shape of the entire design. 6. A base sheet having a thin temporary adhesive layer formed in a partial pattern on the surface thereof, and the base sheet is sucked and fixed to an upper suction plate of a rotary stage having a square cross section, and the temporary adhesive layer of the base sheet is plasticized. While in the state, the base stage is turned upside down by rotating the rotary stage by 180 degrees, then the bead storage tank is raised from below, and the sprinkle bar is horizontally moved below the bead storage tank to continuously supply an appropriate amount of beads. Then, the rotary stage is further rotated by 90 degrees, the surface of the base sheet at a vertical position is brushed, and unnecessary beads are removed by blow suction, and then the base sheet is removed. A transfer sheet which is removed from the bead attaching device, and after forming a predetermined pattern pattern layer, is provided with an adhesive layer substantially equal to the planar shape of the entire pattern. Production method.