KR200380205Y1 - Floor composed of synthetic resin with bar code - Google Patents

Abstract

The present invention provides a two-dimensional barcode-printed plastic flooring material that provides the necessary data for the autonomous mobile robot to operate unattended.

Back layer for maintaining a horizontal balance according to the present invention for this purpose; Lower foam layer or lower non-foaming layer; Base layer; And a surface layer comprising a pattern layer, a transparent skin layer for protecting the pattern layer, and a surface treatment layer for maintaining the surface strength; a synthetic resin flooring having a stacked structure, in which barcodes having different data are placed on the surface layer. The ink is printed at predetermined intervals.

Description

Floor composed of synthetic resin with bar code

The present invention relates to a two-dimensional barcode printed synthetic resin flooring, and more particularly to a barcode printed synthetic resin flooring that provides the data necessary to enable the autonomous mobile robot to operate unattended.

Generally, flooring materials such as vinyl flooring, flooring, tiles, etc. are installed in homes, officetels, and public offices, and recently, two-dimensional barcode layers with location information encoded on flooring materials as part of home automation. A technology is being developed that allows the autonomous mobile robot equipped with a barcode reader to be operated unattended using the information of the barcode.

For example, by embedding an RFID (Radio frequency ID) card inside the flooring material, the autonomous mobile robot receives information about the absolute coordinates from the RFID card and quickly and accurately calculates relative coordinates, movement direction, distance, etc. from the absolute coordinates. A technique that can be calculated is known, and this technique has a configuration in which the RFID cards 1a, 1b, 1c are embedded in a selected portion of the flooring material 2 having a multilayer structure.

When the RFID cards 1a, 1b and 1c are used in this way, the accuracy of position and orientation recognition of the autonomous mobile robot 3 is determined according to the distribution density of the RFID cards 1a, 1b and 1c. If the distribution density of 1b, 1c is too low, the precise position and direction recognition of the autonomous mobile robot 3 cannot be expected. If the distribution density of the RFID cards 1a, 1b, 1c is too high, the RF output from each RFID card Interference between signals can cause errors in the reading of the unique number.

Therefore, in order to prevent an error from occurring, it is recommended to limit the embedding density of the RFID cards 1a, 1b, and 1c to an appropriate range, which causes a decrease in the accuracy of the position and orientation recognition method using the RFID card. do. In addition, in the method using the RFID cards 1a, 1b, and 1c, the autonomous mobile robot 3 with the RFID card reader 4 must simultaneously recognize at least two or more RFID cards in order to recognize the direction. If the distribution density of is not high enough, it becomes difficult to recognize the direction.

In addition, an error may occur even when there is an object absorbing a magnetic field in a place where the RFID cards 1a, 1b, and 1c are embedded.

In particular, the method using the RFID card (1a, 1b, 1c) has a problem that the manufacturing process is inconvenient because the RFID card (1a, 1b, 1c) must be embedded in the floor.

In addition, when using the RFID card (1a, 1b, 1c) in a large area, a large number of RFID cards should be used, the expensive installation cost in operating the autonomous mobile robot (3) as well as during maintenance Needs to be careful of breakage and expensive maintenance costs will occur.

In addition, the RFID cards 1a, 1b, and 1c and the RFID card reader 4 which recognizes the RFID card are expensive components and have a problem of raising the cost of the flooring flooring and the autonomous mobile robot 3.

In order to make up for this drawback, a technology has been developed to form a two-dimensional barcode layer having data on a separate sheet and allow an autonomous mobile robot equipped with a barcode reader to operate unattended using the information of the two-dimensional barcode.

2, the two-dimensional bar code 11 is arranged in the sheet 10 at regular intervals in the longitudinal direction and each two-dimensional bar code 11 functions as a coordinate system by having different data, for example, coordinate values. . That is, the barcode reader (not shown) obtains the absolute coordinates from the two-dimensional bar code, calculates the relative coordinates from these absolute coordinates, and further calculates the movement direction and distance.

However, when the two-dimensional bar code 11 is formed on the sheet 10, the adhesive layer should be provided on the back surface of the sheet 10 to be used for the flooring material. If the elongation of the sheet and the flooring material is different from each other, the sheet is separated or moved from the flooring material. There is a problem in that the position of the two-dimensional bar code is changed.

In addition, as shown in FIG. 2, a two-dimensional bar code, a QR code (Ouick Response Code) developed by Nippondenso ID System, is mainly used. The rectangular QR code has three finders in the corners for easy identification, and the areas marked in black are the data holding parts.

The fluorescent ink for two-dimensional barcodes currently being developed includes a urethane, vinyl, acrylic, modified acrylic resin and other additives in organic dyes or pigments. It is used colorlessly so as not to be identified. However, the colorless transparent fluorescent ink is mainly used so as not to harm the aesthetics of the pattern layer printed on the surface due to the nature of PVC flooring material.

However, when printing a two-dimensional bar code using such organic dyes or organic pigments, there is a problem that the light resistance and heat resistance is lowered and discolored depending on the type of the resin contained in the organic dyes or pigments to damage the appearance of the flooring. Here, light resistance refers to the ability of printed two-dimensional barcodes to be emitted by natural light or a barcode reader and not gradually weaken. In terms of flooring, the service life of the two-dimensional barcodes using organic dyes is weak because of their low light resistance. There was a problem as short as this year.

The present invention has been proposed to solve this problem, and an object thereof is to provide a synthetic resin flooring material having a barcode that is not easily separated from the flooring material and that does not become surface abrasion or thermal deformation.

In addition, the present invention provides a synthetic resin flooring material having a barcode having excellent light resistance and significantly extending the service life.

In addition, it provides a synthetic resin flooring material having a barcode with improved recognition rate by a barcode reader.

Synthetic resin flooring material printed bar code according to the present invention for achieving the above object, the back layer for maintaining horizontal balance; Lower foam layer or lower non-foaming layer; Base layer; And a surface layer comprising a pattern layer, a transparent skin layer for protecting the pattern layer, and a surface treatment layer for maintaining the surface strength; a synthetic resin flooring having a stacked structure, in which barcodes having different data are placed on the surface layer. The ink is printed at predetermined intervals.

The barcode is preferably a two-dimensional barcode, more preferably an inverted image is printed.

In addition, it is preferable that the ink is transparent, and an inorganic fluorescent or phosphorescent pigment is used as the pigment of the ink used for ink printing of the barcode, and one that emits light in the infrared or ultraviolet wavelength band is used.

The barcode may be printed on the patterned layer, printed on the transparent skin layer, or printed while the transparent skin layer is multi-coated and disposed inside the transparent skin layer.

The barcode is printed using any one method of actual output, gravure printing, transfer printing, and marking machine printing, and a foamed layer or a non-foamed layer may be stacked on the substrate layer.

Hereinafter, with reference to the accompanying drawings looks at the PVC flooring printed barcode in accordance with a preferred embodiment of the present invention. In the present embodiment, description will be made focusing on the two-dimensional bar code.

As a first embodiment, as shown in Figure 3, PVC flooring, commonly referred to as 'lium' or 'mat' is the base layer 21, the pattern layer 21, the transparent skin on the base layer 20 The layer 22 and the surface treatment layer 23 are sequentially stacked, and the back layer 26, the bottom foam layer or the bottom non-foaming layer 2 are sequentially stacked below the base layer 20. . Here, the base layer, the pattern layer, the transparent skin layer, and the surface treatment layer stacked on the upper part of the base layer 20 are formed with a pattern of the flooring material and are called a surface layer as a layer for protecting the pattern, and the base layer 21 and the back surface. Layer 26 is optionally formed or omitted.

The base material layer 20 is a layer serving as the base material of the flooring material, based on 100 parts by weight of vinyl chloride resin having a degree of polymerization of 1000 to 1500 on a substrate such as glass fiber, imitation paper or mineral paper, and 10 to 100 parts by weight of a plasticizer and 1 to 20 parts by weight of a stabilizer. , 1 to 20 parts by weight of pigment, 1 to 200 parts by weight of calcium bicarbonate as a filler, and other additives are mixed to deposit a sol and then gelled at 150 to 230 ° C. In particular, the base layer is a recent trend of the base material by impregnating the PVC paste-like resin in the glass fiber sol state, also referred to as glass fiber impregnation layer or substrate impregnation layer.

The base layer 21 is composed of a foam layer for imparting a cushion feeling on the base layer 20 or a non-foaming layer for imparting hardness.

The pattern layer 22 is formed on the base layer 21 or when the base layer is omitted, is formed on the base layer 20. The gravure printing, transfer printing or chip layer using an oil ink or an aqueous ink is used. ) Is formed into a layer. In this case, the chip layer is not coated by printing, but is made to have a pattern by using the bending of the synthetic resin.

The transparent skin layer 23 is a layer for protecting the printed pattern by improving transparency and imparting durability to the pattern layer 22. The transparent skin layer 23 has a thickness of 0.1-1.5 mm on the upper part of the pattern layer. sol) After coating, the gel is formed by applying heat in an oven or a drum at a temperature of 150 to 230 ° C., or a 0.1 to 1.5 mm transparent sheet already processed in a calender is heat or sol laminated.

The surface treatment layer 24 is a transparent layer for improving the surface strength of the PCV flooring material and improving the stain resistance to facilitate cleaning. It is formed by coating and then drying. UV coating layer is mainly used.

The lower foamed layer or lower non-foamed layer 25 is in a selective relationship with each other, and a lower foamed layer is formed in order to give a cushioning feeling, such as, and a lower non-foamed layer is formed on a flooring material such as mat instead of the lower foamed layer.

The back layer 26 is a layer formed to provide a balance of the flooring material in relation to the workability and the transparent skin layer. 10 to 120 parts by weight of a plasticizer based on 100 parts by weight of vinyl chloride resin having a polymerization degree of 1000 to 2000, and pigment 1 A synthetic resin sheet formed by mixing a sol by mixing 20 parts by weight to 1 part by weight of stabilizer, 1 to 200 parts by weight of calcium carbonate and other additives, and then gelling at 150 to 230 ° C. or processing a calender, It consists of a woven fabric, a nonwoven fabric, a chip layer, etc.

Bar code 30 is printed on the pattern layer 22, it is preferable to control the amount of the binder when forming the pattern layer so that the barcode 30 is printed directly on the pattern layer without bleeding phenomenon, in some cases of the barcode The primer layer may be formed on the pattern layer by a separate post process on the surface of the pattern layer for printing.

These barcodes are arranged at regular intervals in the longitudinal and horizontal directions so as to function as a coordinate system for the autonomous mobile robot moving on the flooring, as described in the prior art, each having different data, for example, coordinate values. The transparent skin layer 23 and the surface treatment layer 24 stacked on the barcode 30 are transparent layers, and the barcode is not disturbed by the barcode lead mounted on the autonomous mobile robot. It protects the surface from being easily damaged by scratches or heat.

In addition, since the bar code 30 is printed on the pattern layer 22 forming the flooring, the problem caused by bonding the adhesive sheet to the flooring as in the prior art is solved.

As the printing method of the barcode 30, actual output, gravure printing, transfer printing, marking machine (industrial inkjet printer) printing and the like are used. The ink used may be an organic dye-based fluorescent ink, but preferably inorganic fluorescent Alternatively, an ink obtained by mixing a phosphorescent pigment with a solvent is used.

The composition of the ink including an inorganic fluorescent or photoluminescent pigment may be an inorganic fluorescent or photoluminescent pigment, urethane, vinyl, acrylic, or modified acrylic resin, and additives are included to prevent precipitation, improve dispersibility, and ease bubble removal. It includes solvents or monomers, and includes ultraviolet absorbers, blockers, antioxidants and the like to improve the light and heat resistance of resins and other additives.

These inorganic fluorescent inks are colorless and not visible to the naked eye in the printed state, and use materials emitting in the infrared and ultraviolet wavelength bands. This is to avoid damaging the aesthetics of the printed pattern.

The barcode may be printed as a conventional image 31a as shown in FIG. 4 (a), but may be printed as an inverted image 31b as in the negative film shown in FIG. 4 (b).

In FIG. 4, the black portion is the portion on which the ink is printed, and in the case of using colorless ink as in the present embodiment, it will not actually be visually identified. In this way, when the image of the barcode is inverted and printed, the recognition rate by the barcode reader is improved. This is judged to be because the boundary is generated in the barcode by being represented by the inverted image 31a. The barcode illustrated in FIG. 4 is a QR code.

As a second embodiment, as shown in Fig. 5, the barcode 30 can be printed on the transparent skin layer 23. As shown in FIG.

As a third embodiment, as shown in FIG. 6, the barcode 30 may be printed and placed inside the transparent skin layer while the transparent skin layer is multi-coated. When the transparent skin layer is applied twice and consists of the lower transparent skin layer 23b and the upper transparent skin layer 23a, the barcode 30 is printed on the lower transparent skin layer 23b. In this case, the upper and lower transparent skin layers 23a and 23b may be applied with other compositions as necessary.

The matters other than the position where the barcode 30 is formed in the second and third embodiments are the same as in the first embodiment.

Referring to Figure 7, looks at the use of the PVC flooring material printed with the above bar code.

As shown in FIG. 7, the barcode 41 printed on the surface layer of the flooring material 40 and arranged along a predetermined rule in the longitudinal direction is mounted on the barcode reader 42 mounted with an autonomous mobile robot (not shown). Recognized by the bar code reader to determine the moving distance and direction using the data of the bar code 41.

According to the synthetic resin flooring material having a bar code printed as described above, the bar code is printed directly on the surface layer constituting the flooring material is not easily separated from the flooring material.

In addition, bar codes are placed in the surface layer so they are not easily damaged by surface abrasion or heat.

In addition, it is resistant to heat and excellent in light resistance because inorganic fluorescent and photoluminescent pigments are used as ink for printing barcodes.

In addition, since the barcode is printed as an inverted image, the recognition rate by the barcode reader is improved.

Figure 1 is a schematic diagram showing a cross-sectional structure of the flooring is installed conventional RFID card.

2 is a view showing a sheet on which a conventional two-dimensional bar code is printed.

3 is a schematic view showing a cross-sectional structure of a synthetic resin flooring material according to a first embodiment of the present invention.

4 is a conceptual diagram illustrating a two-dimensional bar code printed with an inverted image according to the present invention.

5 is a schematic view showing a cross-sectional structure of a synthetic resin flooring material according to a second embodiment of the present invention.

6 is a schematic view showing a cross-sectional structure of a synthetic resin flooring material according to a third embodiment of the present invention.

7 is a conceptual diagram illustrating a two-dimensional bar code scanning while moving the barcode reader along the synthetic resin flooring material is printed two-dimensional bar code according to the present invention.

<Description of the symbols for the main parts of the drawings>

20: base layer 21: base layer

22: pattern layer 23, 23a, 23b: transparent skin layer

24: surface treatment layer 25: lower foam layer or lower non-foaming layer

26: back layer 30, 31a, 31b, 41: barcode

40: flooring

Claims (11)

A back layer for maintaining balance; Lower foam layer or lower non-foaming layer; Base layer; And a surface layer comprising a pattern layer, a transparent skin layer for protecting the pattern layer, and a surface treatment layer for maintaining surface strength; Synthetic resin flooring material, characterized in that the bar code having different data is printed on the surface layer at predetermined intervals. The method of claim 1, The barcode is a synthetic resin flooring, characterized in that the two-dimensional barcode. The method of claim 2, The barcode is a synthetic resin flooring, characterized in that the reverse image is printed. The method of claim 1, wherein Synthetic resin flooring material, characterized in that inorganic fluorescent or photoluminescent pigments are used as the pigment of the ink used for printing the barcode. The method of claim 4, wherein The resin used for printing the barcode is a synthetic resin flooring, characterized in that the transparent. The method of claim 5, wherein The inorganic fluorescent or photoluminescent pigment is a synthetic resin flooring material, characterized in that emitted in the infrared or ultraviolet wavelength range. The method of claim 4, wherein The barcode is a synthetic resin flooring, characterized in that printed on the pattern layer. The method of claim 4, wherein The barcode is a synthetic resin flooring, characterized in that printed on the transparent skin layer. The method of claim 4, wherein The barcode is printed while the transparent skin layer is multi-coated and the synthetic resin flooring, characterized in that disposed inside the transparent skin layer. The method of claim 4, wherein The barcode is a synthetic resin flooring material, characterized in that printed using any one method of the actual output, gravure printing, transfer printing, marking machine printing. The method of claim 4, wherein Synthetic resin flooring material, characterized in that the foam layer or non-foamed layer is laminated on the base layer.