JP2004209685A - Transfer sheet and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To secure a transfer region covering a broader area than heretofore by reducing the number of detection marks and cut a manufacturing cost relating to detection mark printing. <P>SOLUTION: This transfer sheet is constituted of each set of one or more transfer regions 12Y, 12M and 12C each having a different function, these sets being regarded as a group and these groups being formed with at least one detection mark 13 being formed per group. The detection mark 13 includes parts 13a and 13b whose transmittance and reflectance partially vary to a photosensor to be used for reading the detection mark 13. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a transfer sheet suitably used for an ink ribbon or the like of a thermal transfer printer, and more particularly to a transfer sheet having improved detection marks and a method for manufacturing the same.
[0002]
[Prior art]
Conventionally, this type of transfer sheet has been disclosed that includes a plurality of transfer areas having different functions and detection marks provided at right angles to the longitudinal direction of the transfer area (for example, Patent Document 1). ).
[0003]
[Patent Document 1]
JP 11-130056
[0004]
[Problems to be solved by the invention]
The above-mentioned conventional transfer sheet has a large amount of information in the detection mark, so that the same shape cassette can be used for different printers such as upper model, lower model and manufacturer, and can be identified. Thus, it is possible to provide a transfer sheet that does not narrow the transfer area.
However, with this configuration, a detection mark must be provided for each transfer area, and the reduction of the ink area due to this has led to an increase in cost.
[0005]
An object of the present invention is to provide a transfer sheet having a wider transfer area and a method for manufacturing the same, by greatly reducing the number of detection marks as compared with the prior art.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention of claim 1 is characterized in that a plurality of sets of transfer regions having different functions are formed into a plurality of sets, and the plurality of formed groups form one group. The transfer sheet is characterized in that a detection mark is formed for each one.
[0007]
According to a second aspect of the present invention, in the transfer sheet according to the first aspect, the detection mark includes a portion having partially different characteristics.
According to a third aspect of the present invention, in the transfer sheet according to the first or second aspect, at least one of the detection marks including a part having a partially different characteristic exists in the group. The transfer sheet is characterized by that.
[0008]
According to a fourth aspect of the present invention, in the transfer sheet according to any one of the first to third aspects, the detection mark is partially transmissive or reflective with respect to an optical sensor used for reading the detection mark. It is a transfer sheet characterized by including portions with different rates.
[0009]
According to a fifth aspect of the present invention, in the transfer sheet according to the fourth aspect, with respect to a mark including a portion having a partially different transmittance or reflectance in the detection mark, the portion having a high transmittance or reflectance and the transmission are transmitted. The transfer sheet is characterized in that a difference in transmittance or reflectance from a portion having a low reflectance or reflectance is 10% or less at any wavelength in the visible region (400 nm to 700 nm).
The invention according to claim 6 is the transfer sheet according to claim 4, wherein a portion of the detection mark that includes a portion having a partially different transmittance or reflectance has a high transmittance or reflectance. When the transmittance or reflectance is measured at any wavelength of 800 nm to 950 nm, the portion that is 1% or more and 10% or less and the transmittance or reflectance is low is any wavelength between 800 nm and 950 nm. No. 1 is a transfer sheet that is 1% or less when the transmittance or reflectance is measured.
[0010]
In the invention of claim 7, a plurality of sets of transfer regions having different functions are formed, and the plurality of formed groups form one group, and a detection mark is provided for each group. In the transfer sheet manufacturing method for manufacturing the formed transfer sheet, each transfer region is printed for each one group by a plurality of transfer layer printing cylinders each having a plurality of plate portions of the different transfer regions. In the method of manufacturing a transfer sheet, at least one detection mark in the one group is printed by a detection mark printing cylinder.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings.
(First embodiment)
FIG. 1 is a schematic view showing a first embodiment of a transfer sheet according to the present invention. FIG. 1 (A) is a plan view, and FIG. 1 (B) is an enlarged view of part B of FIG. 1 (A). is there.
The transfer sheet 10 of this embodiment includes a base sheet 11, a thermal transfer layer 12 (121Y, 121M, 121C, 122Y, 122M, 122C, 123Y, 123M, 123C), a detection mark 13, and the like.
[0012]
The base sheet 11 serves as a carrier for the transfer sheet 10 and may have predetermined heat resistance and strength. For example, paper, plastic sheets such as PET, metal foil, and the like can be used. The thickness is 0.5 to 50 μm, preferably 3 to 10 μm.
[0013]
The thermal transfer layer 12 is formed on the base sheet 11, and forms one set in the order of transfer regions 12Y, 12M, and 12C for each color of yellow, magenta, and cyan. 121C, 122Y, 122M, 122C, 123Y, 123M, 123C) to form one group. A plurality of each group is provided in the longitudinal direction.
The thermal transfer layer 12 is a layer made of a resin containing a dye that melts or sublimates and migrates by heating, and the dye is preferably a heat sublimable disperse dye, an oily dye, or a basic dye. The molecular weight is 150 to 800, preferably 310 to 700. Among these, the heat sublimation temperature, the hue, the weather resistance, the solubility in the ink composition or the binder, and the like are selected.
The thermal transfer layer 12 is dissolved in a selected dye together with a resin using a solvent to form an ink composition, and then printed to a thickness of 0.3 to 2 μm by an appropriate printing method such as gravure printing.
[0014]
The detection mark 13 is a mark for detecting information about the thermal transfer sheet 10 and is formed of any material as long as the presence of the mark can be confirmed by optical, electrical, or magnetic detection means. May be.
It is sufficient to form the detection marks 13 at the leading portion of only the yellow (Y) transfer region 121Y which is the leading portion of each group, so that the detection marks 13 are formed at other Y, M, and C in the same group. There is no need, and this transfer sheet 10 is shorter than the conventional one, and has the merit of leading to a significant cost reduction.
Information on the thermal transfer sheet 10 includes, for example, front / back distinction of the thermal transfer sheet 10, recording start position, head / tail distinction (direction), type, grade, number of frames that can be printed on one roll of thermal transfer sheet, notice of termination, each color The boundary of the thermal transfer layer, the manufacturer name, the printer version, and the determination as to whether or not it is an authentic product.
[0015]
As the detection mark 13, for example, a mark made of a composition containing a pigment or a dye that can be distinguished by a light source used in a resin and detected optically, such as metal powder or carbon. A mark made of a conductive resin or metal foil contained in a resin, which is electrically detected, a magnetic composition containing a magnetic metal or a compound, or a mark made of a deposited film of magnetic metal, which is magnetically detected There are things, etc.
Any detection means can be used, but what can be simplified in terms of apparatus is optical detection means.
[0016]
When the thermal transfer layer 12 of each color and the detection mark 13 are overlapped in the same area and the dye or pigment in the detection mark 13 has a general hue, it is necessary to use an appropriate color filter. If the infrared ray transmitting dye is selected as the dye in the layer 12 and the detection mark 13 is detected by infrared rays as the infrared light shielding mark, detection can be performed regardless of the hue of the thermal transfer layer 12.
[0017]
The infrared ray shielding mark can be formed from a composition containing an infrared ray shielding material in a resin, and the most suitable infrared ray shielding material is carbon black that absorbs infrared rays most easily.
As the resin containing the infrared light shielding material, polyurethane resin, polyamide resin, vinyl chloride / vinyl acetate copolymer resin, vinyl chloride / acrylic copolymer resin, cellulose acetate butyrate, and the like are suitable. They can be used alone or in combination. These resins may be further crosslinked with a polyisocyanate compound.
[0018]
When using the infrared light shielding material, the weight ratio of the infrared light shielding material and the resin in the detection mark is infrared light shielding material / resin = 1/10 to 10/1, and the thickness is about 0.5 to 5 μm. It is.
The configuration of the apparatus that detects the infrared light shielding detection mark 13 is, for example, an infrared projector such as an infrared light emitting diode disposed on one surface of the traveling thermal transfer sheet 10, an infrared sensor, and the other of the thermal transfer sheet 10. It consists of a reflector arranged on the surface and a computer connected to the infrared sensor, and instructs the printer various operations based on signals from the infrared sensor.
[0019]
When an infrared projector capable of emitting infrared rays having a wavelength of 900 to 2500 nm, particularly 900 to 1000 nm, and an infrared sensor sensitive to the same wavelength region are used, the dye in the thermal transfer layer 12 absorbs infrared rays in this wavelength range. Therefore, regardless of the hue, infrared rays can be transmitted through the thermal transfer layer 12 to increase the detection efficiency of the detection mark 13 having an infrared shielding property.
Accordingly, as the dye in the thermal transfer layer 12, it is preferable to select and use a dye that substantially transmits infrared rays having a wavelength in the above range.
[0020]
In addition, since detailed composition of each part etc. is disclosed by Unexamined-Japanese-Patent No. 1-202091 proposed by this applicant for such a thermal transfer sheet, detailed description is abbreviate | omitted.
[0021]
In this embodiment, the detection mark 13 further includes portions 13a and 13b having different transmittances (or reflectances) as shown in FIG. Depending on the information to be written, it is sufficient that at least one detection mark 13 is present in the group among all the detection marks 13.
[0022]
The different portions 13a and 13b of the detection mark 13 are partially different in transmittance (or reflectance) from the optical sensor used for reading the detection mark 13, here, the infrared (IR) sensor. Yes.
[0023]
Regarding the portions 13a and 13b having different transmittances or reflectances, a difference in transmittance (or reflectance) between a portion having a high transmittance (or reflectance) and a portion having a low transmittance (or reflectance) is a visible region ( It is desirable that it is 10% or less at any wavelength of 400 nm to 700 nm. This is because the difference is difficult to understand visually and has an effect of preventing forgery.
[0024]
Further, regarding the different portions 13a and 13b, the portion having a high transmittance (or reflectance) is 1% or more and 10% or less when the transmittance (or reflectance) is measured at any wavelength of 800 nm to 950 nm. In addition, the portion having low transmittance (or reflectance) is desirably 1% or less when the transmittance (or reflectance) is measured at any wavelength of 800 nm to 950 nm.
When the transmittance (or reflectance) is measured at any wavelength between 800 nm and 950 nm, the optical characteristics of the portion having a high transmittance (or reflectance) is less than 10%, and erroneous detection is unlikely to occur. preferable. For example, the mark ink is the most common black mark kneaded with carbon black, and when detection is performed using a general-purpose IR sensor, detection is not stable when the transmittance in the IR region is 10% or more.
[0025]
Different portions 13a and 13b such as transmittance (or reflectance) can be formed by changing the above-described gravure printing plate depth. In addition, the widths and numbers of the different portions 13a and 13b such as transmittance (or reflectance) can be set as appropriate, and the information can be detected based on the width and number of pulses at the time of detection.
The different portions 13a and 13b may be detected by matching the mark reading sensitivity with a portion having the lowest transmittance and the like. For example, when determining an authentic product, since it is difficult to visually determine the transmittance (or reflectance) and the like, it can be easily determined if a complicated pattern is used.
[0026]
According to the present embodiment, since the detection mark 13 is provided with portions having different transmittances (or reflectances), more information regarding the thermal transfer sheet 10 can be recorded.
In addition, for example, when used in a printer of a different version, or when a cassette of a transfer sheet that is not an authentic product is mounted, the detection mark 13 is different, so that an error can be displayed to make it unusable. .
[0027]
Since the detection method on the printer side is described in detail in Japanese Patent Publication No. 2-21951, etc., the description thereof is omitted here.
[0028]
(Second to fifth embodiments)
FIG. 2 is a plan view showing second to fifth embodiments of the transfer sheet according to the present invention. In each embodiment described below, parts having the same functions as those of the first embodiment described above are denoted by the same reference numerals or common reference numerals at the end thereof, and repeated descriptions are appropriately omitted. To do.
Here, each detection mark 13 has a portion with different transmittance (or reflectance) as in the first embodiment.
[0029]
As shown in FIG. 2A, the transfer sheet 10A of the second embodiment has two detection marks 131YY corresponding to the transfer regions 121Y, 121M, and 121C of the first set of the thermal transfer layer group 12. And a single detection mark 131M, 131C. The detection marks 131YY, 131M, and 131C are formed to full width.
[0030]
As shown in FIG. 2 (B), the transfer sheet 10B of the third embodiment corresponds to the first set of transfer areas 121Y, 121M, 121C of the respective colors of the thermal transfer layer group 12, and the detection marks 131Y, 131m, 131c is provided. The detection mark 131Y is formed to the full width, and the detection marks 131m and 131c are formed halfway in the width direction.
[0031]
As shown in FIG. 2C, the transfer sheet 10C of the fourth embodiment is provided with detection marks 131YL, 131M, and 131C corresponding to the first set of transfer regions 121Y, 121M, and 121C of the thermal transfer layer group 12. It is a thing. The detection mark 131YL is a detection mark provided at 121Y which is the head of each group, and is thicker than usual. The detection marks 131M and 131C are formed in the transfer areas 121M and 121C, respectively.
[0032]
(Fifth to seventh embodiments)
FIG. 3 is an enlarged view of the detection marks on the transfer sheet according to the fifth to seventh embodiments.
As shown in FIG. 3A, the detection mark 13A according to the fifth embodiment has portions 13c and 13d having different transmittances in the width direction.
[0033]
As shown in FIG. 3B, the detection mark 13B according to the sixth embodiment has three portions 13e, 13f, and 13g having different transmittances in the longitudinal direction. In this way, more information can be recorded. There may be four or more parts having different transmittances.
[0034]
In the detection mark 13C according to the seventh embodiment, as shown in FIG. 3C, portions 13h and 13i having different transmittances are formed so that one of them surrounds the other. There may be two or more enclosed portions 13h.
[0035]
In each of the embodiments described above, one detection mark includes a part having different characteristics. However, in each of the following embodiments, each detection mark has a uniform characteristic (partially different). The detection mark indicating one area and the detection mark indicating another area have different characteristics (transmittance or reflectance).
Here, the method of applying detection marks will be described as a comparative example, and will be described while clarifying differences from the following embodiments.
[0036]
(Eighth to tenth embodiments)
FIG. 4 is a plan view showing eighth to tenth embodiments of the transfer sheet. In the following embodiment, it is assumed that the detection mark 42 has uniform characteristics.
In the transfer sheet 40A according to the eighth embodiment, transfer groups having Y, M, and C as one set form a group of three sets, and the first set of 421Y, Detection marks 431Y ′ Y ′, 431M, and 431C are provided only on 421M and 421C, respectively. The detection marks 431Y ′ Y ′ are two detection marks, both of which are detection marks having higher transmittance (or reflectance) than 431M and 431C.
Reference numerals 431M and 431C are one detection mark having a low transmittance (or reflectance). In this case, there is an advantage that only one optical sensor is required. Further, since the transmittance (or reflectance) of 431Y'Y 'is different from that of other 431M and 431C, the start of each group can be notified to the printer side, and each color is shifted due to erroneous detection such as skipping a mark. There will be no detection.
[0037]
Regarding detection marks having different transmittance or reflectance, the difference in transmittance or reflectance between a detection mark having a high transmittance or reflectance and a detection mark having a low transmittance or reflectance is in the visible region (400 nm to 700 nm). Even at a wavelength of 10%, it is desirable that it is 10% or less.
Further, regarding detection marks having different transmittances or reflectances, detection marks having a high transmittance or reflectance are 1% or more and 10% when the transmittance or reflectance is measured at any wavelength of 800 nm to 950 nm. The detection mark having a low transmittance or reflectance is preferably 1% or less when the transmittance or reflectance is measured at any wavelength of 800 nm to 950 nm. Note that the transmittance or reflectance is the same as that of the first embodiment, and thus detailed description thereof is omitted. Further, in each of the following embodiments, only the transmittance will be described, but the present invention can be similarly applied even when the reflectance is different.
[0038]
In the transfer sheet 40B according to the ninth embodiment, transfer groups having Y, M, and C as one set form a group of three sets, and the first Y, M, and C in the transfer area at the head of each group. Only C is provided with a detection mark. Two detection marks 431YY are provided on 421Y, and one detection mark 431M, 431C ′ is provided on the other transfer areas 421M and 421C.
At this time, only 431C ′ provided in 421C has high transmittance (or reflectance), and the other detection marks 431YY and 431M are detection marks with low transmittance (or reflectance). In this case, there is an advantage that only one optical sensor is required. Further, since only 431C ′ has a high transmittance (or reflectance), there is an effect that it is in one group and notifies the end of the first set of transfer regions. However, the base sheet becomes longer by the amount of the two detection marks 431YY, which increases costs.
[0039]
As shown in FIG. 4C, the transfer sheet 40C according to the tenth embodiment is provided with an OP (surface protective layer) transfer region after the transfer regions of the respective colors Y, M, and C of the thermal transfer layer 42. The transfer regions having one set of Y, M, C, and OP form one group with three sets. Among them, 431YY ′, 431M, 431C, and 431OP are provided corresponding to each of the first set 421Y, 421M, 421C, and 421OP. Two full-width detection marks 431YY ′ having different transmittance (or reflectance) are provided in the transfer area 421Y at the head of each group, and the transmittance (or reflectance) is provided in the other transfer areas 421M, 421C, and 421OP. Low detection marks 431M, 431C, and 431OP.
In this case, only one optical sensor is required, and since the form of 431YY ′ is different from 431M and 431C, the start of each group can be notified to the printer side. In addition, the time required for detection can be shortened.
[0040]
(11th to 13th embodiments)
FIG. 5 is a plan view showing the 11th to 13th embodiments of the transfer sheet according to the present invention.
5A and 5B can select different types of transfer sheets (ribbons) in the same form as the transfer sheet 40B in FIG. 2B.
In the transfer sheet 50A of the eleventh embodiment, one detection mark 531Y ′ having a high transmittance (or reflectance) is provided in the transfer area 521Y at the top of the first set of each group, and the other transfer areas 521M, 521C is provided with detection marks 531m and 531c that are short to the middle in the width direction and have low transmittance (or reflectance).
[0041]
The detection mark 531Y ′ and the detection marks 531m and 531c have different (higher or lower) transmittances (or reflectances) than the optical sensors used for reading the respective detection marks 53, here, infrared sensors. I have to.
[0042]
In the transfer sheet 50B of the twelfth embodiment, the first set of transfer areas 521Y, 521M, and 521C at the head of each group has a full width detection mark 531Y with low transmittance (or reflectance) in the transfer area 521Y. 521M is provided with a short 531m halfway in the width direction with low transmittance (or reflectance), and a short 531c ′ halfway in the width direction with high transmittance (or reflectance) is provided in the transfer region 521C. It is provided.
[0043]
In the transfer sheet 50C of the thirteenth embodiment, the transfer region 521Y at the head of the first set of each group has a single sheet having different transmittance (or reflectance) in the width direction as shown in FIG. The detection mark 53Y ′ m ′ is provided, and the other transfer regions 521M, 521C, and 521OP are provided with short detection marks 531m, 531c, and 531op ′ that are halfway in the width direction where the transmittance (or reflectance) is low. It is.
[0044]
According to these embodiments, even one upper optical sensor can detect a region, and more information can be detected by providing the optical sensor also on the lower side. Further, because of the detection mark, the base sheet is not lengthened, and the time required for detection can be shortened.
[0045]
(14th, 15th embodiment)
FIG. 6 is a plan view showing fourteenth to fifteenth embodiments of a transfer sheet according to the present invention.
In the transfer sheet 60A of the fourteenth embodiment, a full width detection mark 631Y ′ having high transmittance (or reflectance) is provided in the transfer area 621Y at the head of each group first set, and the other transfer areas 621M and 621C are provided. Is provided with detection marks 631M and 631C having a full width and low transmittance (or reflectance).
[0046]
In the transfer sheet 60B of the fifteenth embodiment, a full width detection mark 631Y ′ having a high transmittance (or reflectance) is provided in the transfer area 621Y at the head of the first set of each group, and the transfer areas 621M, 621C, 621OP are provided. Is provided with detection marks 631M, 631C, and 631OP having a full width and low transmittance.
[0047]
According to these embodiments, only one optical sensor is required, and in each of the embodiments, the first set of 631M and 631C has the same form of the detection mark formed on the first 631Y of the first set of each group. Therefore, the top of each group can be notified to the printer side, and the transfer area can be prevented from shifting.
[0048]
(Sixteenth embodiment)
FIG. 7 is a plan view showing a sixteenth embodiment of a transfer sheet according to the present invention.
The transfer sheet 70 according to the sixteenth embodiment forms one group by connecting five transfer regions each having three colors Y, M, and C as a set, and the transfer at the head of the first set of each group. One detection mark 731Y having a low transmittance (or reflectance) is provided in the region 721Y.
In this embodiment, the start of each group can be notified to the printer side by one optical sensor, and the length of the transfer sheet is not unnecessarily increased and the time required for detection is also shortened. Can do.
[0049]
(17th and 18th embodiments)
FIG. 8 is a plan view showing the seventeenth and eighteenth embodiments of the transfer sheet according to the present invention.
In the transfer sheet 80A of the seventeenth embodiment, a full width detection mark 831Y having a low transmittance (or reflectance) is provided in the transfer region 821Y at the top of the first set of each group, and the transfer region at the start of the second set. A full width detection mark 832Y ′ having a high transmittance (or reflectance) is provided on 822Y.
[0050]
In the transfer sheet 80B according to the eighteenth embodiment, a detection mark 831Y having a low transmittance (or reflectance) is provided in the transfer area 821Y at the top of each group first set, and the transfer area at the top of the third set. 823Y is provided with a full width detection mark 833Y ′ having a high transmittance (or reflectance).
In these embodiments, by one detection mark, in this embodiment, by one optical sensor, the start of each group can be notified to the printer side, and the length of the transfer sheet is unnecessarily increased. In addition, the time required for detection can be shortened.
[0051]
(Nineteenth embodiment)
As shown in FIG. 9, the transfer sheet 90 of the nineteenth embodiment is provided with a full width detection mark 931Y having a low transmittance (or reflectance) in the transfer region 921Y at the top of the first set of the thermal transfer layer group 92. The second set of transfer regions 922M is provided with a detection mark 932M ′ having a high transmittance (or reflectance).
In this embodiment, only one optical sensor is required, and by providing two detection marks in one group, the position of each transfer region can be accurately detected, and each color due to erroneous detection is detected with a shift. There is nothing wrong.
[0052]
(20th embodiment)
As shown in FIG. 10, the transfer sheet 100 of the twentieth embodiment is provided with a detection mark 1031 </ b> Y of a full width with a low transmittance (or reflectance) in the transfer region 1021 </ b> Y at the top of the first set of the thermal transfer layer group 102, A detection mark 1032M ′ having a high transmittance (or reflectance) is provided in the second set of transfer areas 1022M, and a detection mark 1033C having a low transmittance (or reflectance) is provided in the third set of transfer areas 1023C. . In this embodiment, only one optical sensor is required, three detection marks are included in one group, the first is the first set of first transfer areas 1021Y, and the second is the second set of second transfer areas 1022M. Third, by providing the third transfer area 1023C in the third set, the position of each intra-group transfer area can be accurately detected, and each color is not detected as being shifted due to erroneous detection. .
[0053]
(Embodiment of transfer sheet manufacturing method)
FIG. 11 is a diagram for explaining a first embodiment of a transfer sheet manufacturing method according to the present invention.
In this embodiment, the YMC printing cylinders 101, 102, and 103 have substantially the same circumference as the transfer layers 12 forming one group, and the YMC transfer layers 12nY, 12nM, and 12nC have plate portions. Three (n = 1 to 3) are provided (three faces).
Further, the mark printing cylinder 104 has the same circumference, and the plate portion of the detection mark 13Y is provided only at the head of the first set of Y transfer layers 121Y.
[0054]
First, three Y transfer areas 121Y, 122Y, and 123Y are simultaneously printed by the Y printing cylinder 101, and then three M transfer areas 121M, 122M, and 123M are simultaneously printed by the M printing cylinder 102, and further C printing is performed. The cylinder 103 simultaneously prints three C transfer areas 121C, 122C, and 123C. Finally, different detection marks 13 are printed by the mark printing cylinder 204.
[0055]
The detection mark 13 is recorded with information indicating the positional relationship with respect to the plate portion at the time of manufacture in addition to information indicating the color of the conventional YMC, and the characteristics of each transfer layer 12 of the manufactured transfer sheet 10 are measured in advance. In addition, when printing with the printer, the correction of the hue can be performed by inputting the correction value of the characteristic.
[0056]
According to this embodiment, the transfer sheet 10 can be efficiently manufactured by attaching three surfaces of each transfer layer. Further, since the positional relationship between the three transfer layers provided on the three surfaces can be known by the detection mark 13 of the transfer sheet 10, a good image without unevenness can be formed by performing transfer with the characteristics corrected. can do.
[0057]
(Deformation)
The present invention is not limited to the embodiment described above, and various modifications and changes are possible, and these are also within the equivalent scope of the present invention.
For example, although different portions of the detection mark or different detection marks have been described as having different transmittance or reflectance for the optical sensor, characteristics for the electrical sensor (conductivity) and characteristics for the magnetic sensor (magnetic permeability) ) Etc. may be made different.
The transfer sheet can also be applied to a sheet having a receiving layer.
Furthermore, the detection mark may be a bar code so that it has a lot of information.
Furthermore, different detection marks (eighth embodiment to twentieth embodiment) may include partially different portions (first embodiment to seventh embodiment).
[0058]
【The invention's effect】
As described above in detail, according to the present invention, since at least one detection mark needs to be formed in each group, it can be shorter than the conventional one, leading to a significant cost reduction. There is.
[0059]
In addition, since the detection mark is provided with a portion having different characteristics, there is an effect that more information can be recorded without changing the size of the transfer region or the detection mark.
Furthermore, since detection marks having different characteristics are provided in the transfer area, the transfer areas of each set and each color can be clearly distinguished.
[Brief description of the drawings]
1A and 1B are schematic views showing a first embodiment of a transfer sheet according to the present invention, in which FIG. 1A is a plan view, and FIG. 1B is an enlarged view of a portion B in FIG. is there.
FIGS. 2A to 2C are plan views showing second to fourth embodiments of a transfer sheet according to the present invention.
FIGS. 3A to 3C are enlarged views of detection marks on transfer sheets according to fifth to seventh embodiments. FIGS.
FIG. 4 is also a plan view showing eighth to tenth embodiments of a transfer sheet according to the present invention.
FIG. 5 is a plan view showing first to thirteenth embodiments of a transfer sheet according to the present invention.
FIG. 6 is a plan view showing fourteenth and fifteenth embodiments of a transfer sheet according to the present invention.
FIG. 7 is a plan view showing a sixteenth embodiment of a transfer sheet according to the present invention.
FIG. 8 is a plan view showing seventeenth and eighteenth embodiments of a transfer sheet according to the present invention.
FIG. 9 is a plan view showing a nineteenth embodiment of a transfer sheet according to the present invention.
FIG. 10 is a plan view showing a twentieth embodiment of a transfer sheet according to the present invention.
FIG. 11 is a diagram for explaining a first embodiment of a transfer sheet manufacturing method according to the present invention.
[Explanation of symbols]
10, 40, 50, 60, 70, 80, 90, 100 Transfer sheet 11 Base sheet 12, 42, 52, 62, 72, 82, 92, 102 Thermal transfer layer 13, 43, 53, 63, 73, 83, 93 , 103 Detection marks 13a to 13i Parts having different transmittances

Claims (7)

A plurality of sets of transcription regions having different functions are formed,
The transfer sheet, wherein the plurality of formed groups form one group, and a detection mark is formed for each group. The transfer sheet according to claim 1,
The detection mark includes a portion having partially different characteristics, In the transfer sheet according to claim 1 or 2,
The transfer sheet is characterized in that at least one of the detection marks including a part having a partially different characteristic exists in the group. In the transfer sheet according to any one of claims 1 to 3,
The transfer sheet according to claim 1, wherein the detection mark includes a portion partially different in transmittance or reflectance from an optical sensor used to read the detection mark. In the transfer sheet according to claim 4,
Among the detection marks, regarding a mark including a part with partially different transmittance or reflectance, there is a difference in transmittance or reflectance between a portion with high transmittance or reflectance and a portion with low transmittance or reflectance. The transfer sheet is 10% or less at any wavelength in the visible region (400 nm to 700 nm). In the transfer sheet according to claim 4,
Among the detection marks, with respect to a mark including a part having a partially different transmittance or reflectance, a portion having a high transmittance or reflectance is measured for transmittance or reflectance at any wavelength of 800 nm to 950 nm. When the transmittance or reflectance is measured at any wavelength of 800 nm to 950 nm, the portion having a transmittance of 1% to 10% and low transmittance or reflectance is 1% or less. A transfer sheet characterized by being. A plurality of sets of transfer regions having different functions are formed, and the plurality of formed groups form one group, and a transfer sheet on which a detection mark is formed is manufactured for each group. In the transfer sheet manufacturing method,
By printing a plurality of transfer layer printing cylinders each of which the plate portions of the different transfer areas are multifaceted, the transfer areas are printed for each group.
A method for producing a transfer sheet, wherein at least one detection mark in the one group is printed by a detection mark printing cylinder.

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