JP2020046361A - Length indicator tape - Google Patents

Abstract

To provide a length indicator tape which can be easily mass-produced and features superior wear resistance, water resistance, and stain resistance.SOLUTION: A length indicator tape 1 provided herein comprises a transparent base material film 2, a print layer 3 formed on an inner surface of the transparent base material film 2 by means of digital printing, and a reinforcement layer 4. The print layer 3 is formed to cover an area other than a margin area 7 provided along an entire peripheral edge of the transparent base material film 2, and the reinforcement layer 4 covers the print layer 3 and extends to the margin area 7.SELECTED DRAWING: Figure 2

Description

  An embodiment of the present disclosure relates to a length indicating tape used for measuring a distance and indicating a length.

  2. Description of the Related Art Conventionally, a tape measure is known in which a curved strip-shaped steel sheet is painted, a numeral indicating a distance from a graduation and a zero point is printed, and the strip-shaped steel sheet is wound and stored in a case and the number m is measured. Also, a glass cloth or cloth impregnated with a resin is coated, a numeral indicating a distance from a scale and a zero point is printed, and a tape measure for measuring several tens of meters of the glass or cloth wound up is also widely used.

  These tape measures are printed on a rotary printing press with scales and auxiliary figures of the same color as the scales. A number indicating the distance from the zero point to the tape measure is stamp-printed in a separate step. The auxiliary number is not a number indicating the distance from the zero point, but a number indicating the distance from the “number indicating the distance from the zero point”. The supplementary digits are usually from 1 cm to 9 cm every 1 cm or every 10 mm, and the scale and the supplementary digits are printed on one plate. In addition, there is a tape measure on which an auxiliary numeral is not printed. The reason that the number indicating the distance from the zero point is printed in a separate process and by a stamp is that when printing numbers on a rotary printing machine, a plate with a diameter obtained by dividing the length of the tape measure by the pi is required. This is because Therefore, printing a 10-meter tape measure on a rotary printing press requires a huge plate having a diameter of about 3.2 m, which is usually difficult to implement. Therefore, it is difficult to print the number indicating the distance from the zero point at an accurate position, but it is possible to print the scale accurately, and a tape measure including a JIS first-grade scale can be easily manufactured.

  In addition, a technique of coating a tape measure with a saturated polyester resin has been developed to impart abrasion resistance and rust resistance to a curved tape-shaped steel tape measure (see Patent Document 1).

  Furthermore, a technology relating to a glass cloth tape measure impregnated with a thermosetting polyester resin has been developed (see Patent Document 2).

  However, mass production is difficult because these tapes are printed one by one, and in particular, the process of impregnating or applying a resin to impart abrasion resistance and rust resistance takes time and costs, It makes mass production more difficult.

  Further, even though the intervals between the scales are matched, the number indicating the distance from the zero point is not printed at an accurate position with respect to the scale, but varies.

  In addition, a length indicating tape with a scale printed on white polypropylene film by gravure printing and an adhesive treatment on the back side has been developed, and this length indicating tape is used for photographing and recording construction sites. . However, since it is not common to use a gravure printing machine capable of printing on a film, the equipment exceeding the perimeter of the plate is not common, such a length indicating tape is only printed with scales and auxiliary figures every 10 cm or 20 cm. At present, there is no indication of "1 m" from the zero point. Therefore, if the point being viewed is longer than the zero point, it is difficult to determine how many meters from the zero point. Further, this length indicating tape is obtained by printing on the surface of white polypropylene, and has poor abrasion resistance.

JP 2001-4301 A JP 2005-257272 A

  Embodiments of the present disclosure have been made in view of the above points, and provide a length indicating tape that is easily mass-produced and has excellent friction resistance, water resistance, and contamination resistance. With the goal.

  In the present embodiment, in the elongated length indicating tape, a transparent substrate film, a printing layer provided on the inner surface of the transparent substrate film, formed by digital printing, and printing on the transparent substrate film A reinforcing layer that covers the entire surface of the transparent substrate film, the reinforcing layer covering the entire area of the printing layer and the transparent substrate. A length indicating tape extending to the blank portion of the material film.

  The present embodiment is a length indicating tape in which the printing layer includes a scale indication and a distance indication of 2 m or more from a zero point.

  The present embodiment is a length indicating tape having a multilayer structure, in which the reinforcing layer has a reinforcing layer main body made of a nonwoven fabric and a pair of synthetic resin layers provided on both surfaces of the reinforcing layer main body.

  The present embodiment is a length indicating tape, wherein the reinforcing layer further has an additional base film provided on the synthetic resin layer on the side opposite to the printing layer.

  The present embodiment is a length indicating tape, wherein the reinforcing layer has an additional printing layer provided on an inner surface of the additional base film.

  According to the embodiments of the present disclosure, it is possible to obtain a length indicating tape that can be easily mass-produced and is excellent in abrasion resistance, water resistance, and contamination resistance.

FIG. 1 is a schematic view showing a cross section of a length indicating tape according to the embodiment. FIG. 2 is a plan view showing the appearance of the length indicating tape according to the embodiment. FIG. 3 is a diagram showing a detailed cross section of the length indicating tape according to the embodiment. FIG. 4 is a plan view showing the appearance of a modification of the length indicating tape according to the embodiment. FIG. 5 is a plan view showing a length indicating tape as a comparative example. FIG. 6 is a schematic view showing the appearance of a steel tape measure as a comparative example.

(Length indicating tape according to the present embodiment)
Next, the length indicating tape 1 according to the present embodiment will be described with reference to FIGS. Here, FIG. 1 is a side sectional view schematically showing a length indicating tape. As shown in FIG. 1, the length indicating tape 1 has an elongated shape and has, for example, a scale display 6 for every 10 cm and a distance display 5 for displaying a distance from a zero point. Used in. The length indicating tape 1 has a relatively long measuring range of, for example, 2 m or more from the zero point.

  Such a length indicating tape 1 includes a transparent base film 2, a printing layer 3 provided on the inner surface of the transparent base film 2, and formed by digital printing, including a scale indication 6 and a distance indication 5, and a printing layer 3. And a reinforcing layer 4 that covers the upper surface 3.

  The print layer 3 is formed leaving a blank portion 7 formed along the entire periphery of the transparent base film 2, and the reinforcing layer 4 covers the entire area of the print layer 3 and extends to the blank portion 7 of the transparent base film 2. It extends and preferably covers the entire area of the margin 7.

  Further, as shown in FIG. 3, the reinforcing layer 4 may have a single-layer structure or a multilayer structure. Among them, the reinforcing layer 4 having a multilayer structure is composed of a reinforcing layer main body 4b made of non-woven fabric, a pair of synthetic resin layers 4a and 4c provided on both surfaces of the reinforcing layer main body 4b, and a synthetic resin layer 4c on the opposite side of the printing layer 3. And an additional base film 4d provided thereon. An additional printing layer 4e is provided on the inner surface of the additional base film.

  The printing layer 3 provided on the inner surface of the transparent base film 2 of the length indicating tape 1 has black printing or red printing formed by digital printing, and additional printing provided on the inner surface of the additional base film 4d. The layer 4e has a gravure printing or a full solid white printing made of a water-resistant ink by flexographic printing without a blank portion, but the additional printing layer 4e can be omitted as described later.

  In addition, by providing the adhesive layer 9 on the outermost surface of the reinforcing layer 4, the length indicating tape 1 can be attached to a wall, a plate, or the like.

  As described above, the length indicating tape 1 has the transparent base film 2, the scale indication 6, the distance indication 5 indicating the distance from the zero point, and the printing layer 3 on which other characters and the like are printed. Since the reinforcing layer 4 is present on the back surface of the substrate, it has excellent wear resistance, water resistance, and contamination resistance. Although the printing layer 3 is formed by printing on the inner surface of the transparent base film 2, it may be formed by printing on the outer surface of the reinforcing layer 4.

  Conventional length display tapes are printed with numbers and other characters indicating the distance from the scale or zero point on the surface of the white film, and are inferior in abrasion resistance, water resistance, stain resistance, weather resistance, etc. Although it could not be used outdoors for a long period of time, the length indicating tape 1 according to the present embodiment is excellent in abrasion resistance, water resistance and stain resistance.

  Next, each component will be described.

(Transparent substrate film)
As the transparent base material film 2 used for the length indicating tape 1 according to the present invention, a plastic film having transparency, mechanical suitability for a printing machine, water resistance and the like can be used. Specifically, as the transparent substrate film, a biaxially stretched, uniaxially stretched, or unstretched film formed of a resin such as polyethylene terephthalate, polypropylene, polyethylene, or polyamide can be used. A stretched polyethylene terephthalate film can be suitably used.

  The transparent base film 2 used for the length indicating tape 1 according to the present invention may have a plurality of bonded transparent base films.

(Printed layer 3)
The printing layer 3 of the length indicating tape 1 has an accurate registration of the scale indication 6 and a number (distance indication) 5 indicating the distance from the zero point, unless printing that does not require registration such as providing a solid printing on the background. It is necessary to continuously print on the transparent substrate film 2 in one step in order to meet the requirements. The scale display 6 and the numeral 5 indicating the distance from the zero point are registered and printed over several meters by digital printing.

  In addition, since the digital printing ink has poor water resistance, if the printing layer 3 is exposed on the end face of the length indicating tape 1, the printing layer 3 may be peeled off or discolored due to water wetting. For this reason, the printing layer 3 of the length indicating tape 1 is covered with the reinforcing layer 4 so as not to be exposed on the end surface over the entire circumference of the transparent base film 2 of the length indicating tape 1.

(Reinforcing layer 4)
The reinforcing layer 4 of the length indicating tape 1 is provided to protect the printing layer 3 from water and the like and to add physical strength to the length indicating tape 1.

  As the reinforcing layer 4, a biaxially stretched, uniaxially stretched, or unstretched transparent or colored plastic film formed of a resin such as polyethylene terephthalate, polypropylene, polyethylene, or polyamide can be used. . Alternatively, the reinforcing layer 4 may have a single-layer structure or a multilayer structure having a nonwoven fabric.

  In particular, since the nonwoven fabric has extremely poor tearability, incorporating the nonwoven fabric into the reinforcing layer 4 makes it difficult to cut the length indicating tape 1 even if it is strongly pulled.

Next, the configuration of the reinforcing layer 4 will be specifically described. In this case, if the structure of the reinforcing layer 4 is devised so that the film structure of the length indicating tape 1 becomes an object on the front and back, curling is suppressed and the device is easy to use. For example, as the reinforcing layer 4, a biaxially stretched polyethylene terephthalate film constituting the synthetic resin layer 4 a 25 μm / printing layer / polyethylene 15 μm / nonwoven fabric (basis weight 50 g / m ² ) serving as the reinforcing layer main body 4 b / synthetic resin layer 4 c A, B, C, A / B / C / B / A, A / B / A, A / B / B / Curling can be reduced by adopting a structure having a symmetrical constituent layer such as A.

  By the way, as a method for laminating the transparent base film 2 and the reinforcing layer 4, a general laminating method between the films can be used. It can be suitably used.

  In addition, the length indicating tape 1 can be easily subjected to adhesive processing. As described above, the adhesive layer 9 may be provided on the surface of the reinforcing layer 4, or the adhesive layer 9 may be provided on the transparent base film 2 to be attached to a transparent surface such as a glass surface.

  In addition, since the length indicating tape 1 is made of a material that can be easily processed such as drilling holes, eyelet processing for fixing the length indicating tape with a stick can be easily performed. In particular, it is preferable that the reinforcing layer 4 has a reinforcing layer main body 4b made of a nonwoven fabric because the tear strength is improved. Further, since the length indicating tape 1 is lighter than metal or glass fiber, the eyelet processing is not used to caulk the metal, but is used to reinforce the holes in the binder paper. Eyelet processing can be performed using a patch.

  Next, the appearance of the length indicating tape will be described with reference to FIG. FIG. 2 is a schematic view showing the appearance of the length indicating tape.

  In order to record or report the construction status of road construction work or river improvement work, the length indicating tape is often used to inform the scale by reflecting the length indicating tape when taking a picture. I have.

  Since such a length indicating tape is intended for photographing, there is no fine scale indication 6, and the length indicating tape is provided with a white background and a red scale alternately at 10 cm or 20 cm each as a scale indication. Have been.

  In the length display tape 1 according to the present embodiment, the scale display 6 and the number (distance display) 5 indicating the distance from the zero point are printed by the digital printing machine, so that “2 meters” is set as shown in FIG. It can be displayed, preferably a number 5 indicating the distance from the zero point of hundreds or thousands of meters.

  In this case, the scale display 6 is formed by red printing of the print layer 3, and the white print may be used as a background of the red print of the scale display 6 by performing white printing on the print layer 3. In this case, as described above, the additional print layer 2e may be omitted.

  Alternatively, the background of the scale display 6 of the red printing may be formed by the additional printing layer 2e formed of the solid white printing printed on the additional base film 4d without performing the white printing on the printing layer 3. In this case, White printing on the print layer 3 is not required.

  The numeral 5 indicating the distance from the zero point is formed by printing the printing layer 3 in black.

  The length indicating tape having such a configuration is obtained as follows.

  First, a transparent base film 2 is prepared. Next, a scale display 6 and a number 5 indicating the distance from the zero point of the length are printed on the transparent substrate film 2 in a plurality of rows using a digital printer, and then the reinforcing layer 4 is laminated on the transparent substrate film 2 and laminated. Make a film. Next, the laminated film is slit into a strip to form a product, so that the length indicating tape 1 can be produced using a conventional laminated film production facility.

  In the case where a numeral 5 indicating a distance from a zero point equal to or longer than the length of the film used for the transparent base material film 2 or the reinforcing layer 4 is provided, the length indicating tape 1 may be manufactured by joining.

  Next, a modification of the present embodiment will be described with reference to FIG. Here, FIG. 4 is a schematic view showing the appearance of a modified example of the length indicating tape. In the modification shown in FIG. 4, the same parts as those in the embodiment shown in FIGS. 1 to 3 are denoted by the same reference numerals, and detailed description is omitted.

  As shown in FIG. 4, the length indicating tape 1 is designed so that the printing ink is not exposed at the edge when the product is printed on the transparent base film 2 and the transparent base film 2, for example, It has a scale display 6 formed by black printing and a distance display 5 from a zero point of a desired length formed by blank characters of red printing. White solid printing is performed on the back of the scale display 6 and the numeral 5, and these black printing, red printing, and white solid printing are formed by printing using a digital printing machine. Thereafter, the reinforcing layer 4 is laminated on the transparent base material film 2 to form a laminated film, and the laminated film is slit into strips for each row to form a product. Thus, the length indicating tape 1 can be manufactured.

  In addition, the unit of "30" in the blank character is "centimeter" or "meter", other units that are not officially recognized such as "inch" or "feet", or "dimension" or "scale" But it can be manufactured.

  In addition, by repeatedly printing a plurality of rows of products, hundreds of products are manufactured using one conventional printing film according to the length of a desired product by using a conventional printing film. be able to. In FIG. 4, the length indicating tape 1 has an auxiliary numeral 8.

  Next, FIG. 6 shows the appearance of a steel tape measure as a comparative example.

  As shown in FIG. 6, the length indicating tape 1 has a scale indication 6 and a numeral (distance indication) 5 made of a steel tape measure and indicating a distance from a zero point. The unit of the numeral “30” is “centimeter”. In the case of the steel tape measure shown in FIG. 6, the interval between the scale marks 6 is printed accurately, but the position of the numeral 5 indicating the distance from the zero point is less than 1 mm, but is often shifted.

  Also, since it is a steel tape measure, it is necessary to polish the end face after slitting, but it is difficult to manufacture a plurality of rows at the same time, but it is difficult because ink drops, and above all, it is difficult to slit the steel itself. It becomes processing. In addition, the number indicating the distance from the zero point must be printed off-line, and cannot be mass-produced as easily as the length indicating tape according to the present invention.

  Next, a plastic film length indicating tape as a comparative example will be described with reference to FIGS.

  As shown in FIGS. 5 and 6, a length indicating tape 1 as a comparative example has a white plastic film, a scale of every 10 cm or 20 cm formed by red solid printing on the surface of the white plastic film, and a black color. And a scale display 6 for two-color printing consisting of a linear scale printed in the above. After printing a plurality of rows on a plastic film and performing an adhesive process, the length indicating tape 1 is obtained by separating the strips line by line by slitting.

  A plastic film length indicating tape 1 as a comparative example has a scale indication 6 printed using a plate, but there is rarely a printing machine capable of printing at a pitch exceeding 1 m, and even a pitch exceeding 2 m. "2 meters" cannot be displayed because there is no printing machine capable of printing. In addition, the display of "1 meter" is also generally not performed because "1 meter" is also printed at the position of 2 m when printing at a pitch of 1 m. At present, the only option is to display numbers.

  In addition, when printing on a white film, there is an advantage that it is not necessary to print the white ink, but there is a problem that the friction resistance is inferior because of the printing on the surface.

  On the other hand, since the length indicating tape 1 according to the present embodiment uses a plastic film as a base material, a plurality of lines are simultaneously printed on the base material film, and the base material film and the nonwoven fabric are laminated thereon, and then one line. By separating them one by one, they can be easily mass-produced.

Further, the length indicating tape 1 according to the present embodiment prints a numeral (distance display) 5 indicating the distance from the scale and the zero point using a digital printing machine, so that the distance display 5 is compared with the scale display 6. It can be printed at the correct position. Further, even when the distance display 5 from the zero point is 2 m or more, the length display tape 1 in which the scale display 6 and the number 5 indicating the distance from the zero point are registered can be obtained. In addition, by laminating the printing layer 3 without exposing the end portion of the length indicating tape 1, it is possible to cover poor water resistance of the ink, which is a weak point of digital printing. Therefore, the length indicating tape 1 can be used for a long time without any problem even in a place easily exposed to water, such as outdoors or in a tunnel, and has a length of several thousand m, which is the same as the length of the transparent base film 2. The length indicating tape 1 can also be manufactured. Further, by connecting the length indicating tape 1 having continuous length indications, it is theoretically possible to manufacture any length indicating tape 1. Further, the length indicating tape 1 according to the present embodiment is made of plastic. Since the film is made of the transparent base film 2, it is possible to perform an adhesive process on a roll-to-roll basis, so that the length indicating tape 1 having an adhesive can be easily produced, and the length indicating tape 1 can be used as a plate. It can be easily fixed to a wall or the like.

  In addition, since the length indicating tape 1 according to the present embodiment is made of a laminated film, unlike a tape measure made of a material such as metal, glass fiber, and cloth, the eyelet can be easily struck, and by striking the eyelet. Can be easily fixed with nails, thumbtack, anchor bolts, etc. Thereby, the length indicating tape 1 can be easily fixed to the surface where the adhesive cannot be used.

  Further, since the length indicating tape 1 according to the present embodiment has the reinforcing layer main body 4b made of a nonwoven fabric, the tear resistance is remarkably improved, so that the length indicating tape 1 having a length of several hundred m or more is obtained. be able to.

  Next, a specific example of the present embodiment will be described.

(Example 1)
A biaxially stretched polyethylene terephthalate film (hereinafter, referred to as a PET film) having a width of 520 mm and a thickness of 16 μm as a transparent base film 2 is prepared. The number (distance display) 5 indicating the distance from the zero point from 0 m to 10 m at 1-m intervals in the vertical direction is printed in black, and the scale is registered with the number 5 to indicate a rectangular scale 6 having a width of 45 mm and a length of 100 mm. Was printed in red with a space of 10 mm in the horizontal direction and 10 columns in the horizontal direction and 100 mm in the vertical direction. Next, white solid printing of 45 mm in width and 10 m in length was applied to the PET film from the zero point so that the red rectangle and both ends in the horizontal direction coincided with each other. After printing the display of 10 m in this manner, printing from 0 m to 10 m again with an interval of 1 m was repeated.

  On the printed surface of the printed PET film, a PET film having a width of 520 mm and a thickness of 16 μm as a reinforcing layer 4 is laminated using a two-part curable urethane resin adhesive to form a laminated film. The adhesive layer 9 was provided by performing adhesive processing on 4. Thereafter, the laminated film was slit to a width of 50 mm, and cut with leaving a plain portion 10 cm as a blank portion 7 at both ends of the display of 0 m and 10 m to obtain a length indicating tape according to the present invention.

  Since the length indicating tape 1 is provided with a display of the number of meters up to 10 m, the length and height of the object can be seen at a glance from a photograph when the photograph is taken. In addition, there is no ink at the end of the length indicating tape 1 and the surface is covered with a transparent base film. Therefore, the length indicating tape 1 does not come off even when immersed in water, is hardly stained even when left outdoors, and can be easily wiped off even if it is soiled, so that the usability is good.

(Example 2)
A PET film having a width of 740 mm and a thickness of 25 μm is prepared as the transparent base film 2, and the PET film is provided with a digital printing machine at 24 rows at 30 mm intervals in the horizontal direction and 0 m to 100 m at 1 m intervals in the vertical direction from the zero point. (Distance display) 5 indicating a color was printed in red with a blank character in the capsule shape. Also, a horizontal scale display 6 with a length of 26 mm at intervals of 10 cm and a scale display 6 with a length of 8 mm inside the plain portion 2 mm at both ends in the horizontal direction as a margin 7 at intervals of 1 cm are both zero points. Also printed in black. Next, white solid printing with a width of 26 mm and a length of 100 m was applied to the zero point so that the 10 cm scale formed by black printing and the both ends in the horizontal direction coincided with each other. In this case, after performing the white solid printing, the above-described printing process was repeated from 0 m to 100 m with an interval of 1 m.

  Next, after an anchor agent was applied to the printed surface of the printed PET film, extrusion lamination of low-density polyethylene having a thickness of 20 μm was performed. Another plain PET film having a width of 740 mm and a thickness of 25 μm was prepared, and the other PET film was similarly subjected to extrusion lamination of a 20 μm-thick low-density polyethylene.

The low-density polyethylene surfaces of the two PET films subjected to the extrusion lamination of the low-density polyethylene are opposed to each other, and a 50-g basis weight polyethylene-based long-fiber nonwoven fabric (trade name “Elves (registered trademark) T0503WDO”) is provided therebetween: Unitika Co., Ltd.) was laminated by thermal lamination to prepare a laminated film having a layer constitution of PET film 25 μm / printed layer / polyethylene 20 μm / nonwoven fabric (basis weight 50 g / m ² ) / polyethylene 20 μm / PET 25 μm. Next, the laminated film is wound into a paper tube while being slit to a width of 30 mm at the center of the uncoated portion having a width of 4 mm in the lateral direction, and a length indicating tape is obtained by adding a 10 cm uncoated portion after 100 m display and cutting. Was.

  In the length indicating tape 1 according to the present embodiment, the display of the number of meters is provided up to 100 m, so that the distance from the zero point can be easily grasped at any place where the length indicating tape is installed.

  In addition, by punching a hole every 10 m from the zero point, reinforcing the hole with a reinforcing seal with an adhesive for paper files, and piercing a fixing nail into the hole, it could be used without being blown away even if the wind blows. .

  In addition, since there is no ink at the end of the length indicating tape 1 and the surface is covered with the transparent substrate film, the length indicating tape 1 does not peel off even when wet with water, is hardly stained even when left outdoors, and is not stained. Usability was good because it could be easily wiped off.

DESCRIPTION OF SYMBOLS 1 Length indication tape 2 Transparent base film 3 Printing layer 4 Reinforcement layer 4a Synthetic resin layer 4b Reinforcement layer main body 4c Synthetic resin layer 4d Additional base film 4e Additional print layer 5 Distance display from zero point 6 Scale display 8 Auxiliary numeral 9 Adhesive layer

Claims (5)

In the slender length indicating tape,
A transparent base film,
Provided on the inner surface of the transparent substrate film, a printing layer formed by digital printing,
Comprising a reinforcing layer covering the printing layer on the transparent substrate film,
The printing layer is provided leaving a blank portion formed along the entire periphery of the transparent substrate film,
The length indicating tape, wherein the reinforcing layer covers the entire area of the printing layer and extends to the blank portion of the transparent base film.   The length indicating tape according to claim 1, wherein the printing layer includes a scale indication and a distance indication of 2 m or more from a zero point.   3. The length indicating tape according to claim 1, wherein the reinforcing layer has a multilayer structure including a reinforcing layer main body made of a nonwoven fabric and a pair of synthetic resin layers provided on both surfaces of the reinforcing layer main body.   4. The length indicating tape according to claim 3, wherein the reinforcing layer further has an additional base film provided on the synthetic resin layer on the side opposite to the printing layer.   The length indicating tape according to claim 4, wherein the reinforcing layer has an additional printing layer provided on an inner surface of the additional base film.

Images