JPWO2017122291A1 - Smoking articles with tip paper and filters - Google Patents

Abstract

The chip paper includes a surface layer and a back surface layer, and the surface layer has a surface property that satisfies the following formula (1). Formula (1): −8.2 × Rsk−0.2 × Rc <0 (where Rsk is the surface skewness and Rc is the average height).

Description

  The present invention relates to tip paper and a smoking article with a filter.

  A smoking article with a filter, for example, a cigarette with a filter, is obtained by abutting a cigarette rod and a filter, and winding and integrating the outer peripheral surface of the filter and the outer peripheral surface of the cigarette rod in the vicinity of the butted portion with chip paper.

  If you smoke a cigarette with a filter while lipstick is attached to the lips, the lipstick attached to the smoker's lips will adhere to the tip paper, and the lipstick will need to be removed from the lips. Smokers may feel uncomfortable because they adhere to paper and the appearance of the cigarette is damaged.

  In Patent Document 1, the use of a tobacco filter packaging based on red color makes the lipstick attached to the tobacco filter packaging inconspicuous, and the lipstick adheres to the tobacco filter packaging and the appearance of the cigarette is impaired. A cigarette with a filter capable of reducing the above is disclosed.

Japanese Patent Laid-Open No. 10-136962

  However, the tobacco filter packaging disclosed in Patent Document 1 does not prevent the lipstick itself from adhering to the tobacco filter packaging.

  An object of the present invention is to provide chip paper and a smoking article with a filter that can reduce the adhesion of lipstick to the surface of the chip paper when smoking the smoking article with a filter.

  According to the present invention, there is provided a chip paper comprising a surface layer and a back surface layer, the surface layer having a surface property satisfying the following formula (1).

Formula (1): -8.2 * Rsk-0.2 * Rc <0
(Where Rsk is the surface skewness and Rc is the average height)

  ADVANTAGE OF THE INVENTION This invention can reduce that a lipstick etc. adhere to the chip | tip paper surface at the time of smoking of the smoking article with a filter.

FIG. 1 is a schematic cross-sectional view of the chip paper according to the first embodiment. FIG. 2 is a schematic enlarged view of the nonwoven fabric. FIG. 3 is a schematic cross-sectional view of the chip paper according to the second embodiment. FIG. 4 is a schematic cross-sectional view of a chip paper according to the third embodiment. FIG. 5: shows the chip paper which concerns on 4th Embodiment, (A) is a perspective view of the back surface layer which equips the upper surface with a decoration part, (B) is the whole perspective view of chip paper. 6 is a schematic cross-sectional view taken along line VI-VI in FIG. FIG. 7 is a schematic cross-sectional view of a chip paper according to the fifth embodiment. FIG. 8 is a schematic cross-sectional view of a chip paper according to the sixth embodiment. FIG. 9 is a schematic cross-sectional view of a chip paper according to the seventh embodiment. FIG. 10 is a perspective view showing a cigarette with a filter according to the eighth embodiment. FIG. 11 is a diagram illustrating a method of attaching lipstick to chip paper using a rheometer. FIG. 12 is a diagram showing the relationship between the surface roughness and the color difference ΔE. FIG. 13 is a diagram showing the results of sensory evaluation.

  Several embodiments will be described below with reference to the drawings. Throughout the embodiments, common elements are denoted by the same reference numerals, and redundant description is omitted. Each figure is a schematic diagram for facilitating understanding of the embodiment, and its shape, dimensions, ratio, and the like are different from actual ones. In this specification, terms such as “upper” and “lower” are used as appropriate in correspondence with the drawings in order to show relative positional relationships, but this does not prescribe absolute positional relationships. .

(First embodiment)
FIG. 1 is a schematic cross-sectional view of a chip paper 1 according to the first embodiment. The chip paper 1 includes a front surface layer 11 and a back surface layer 12.

  The surface layer 11 has a surface property that satisfies the formula (1): −8.2 × Rsk−0.2 × Rc <0. In formula (1), Rsk represents skewness and Rc represents average height. When the chip paper has the surface property shown in Formula (1), the contact area between the lips and the chip paper can be reduced. It is more preferable that the surface layer 11 has a surface property satisfying the formula (2): −8.2 × Rsk−0.2 × Rc <−20. The surface properties shown in the above formulas (1) and (2) will be described later.

  The surface layer 11 is generally formed of a material that produces a surface property whose upper surface shape (uneven shape) is defined by the above formula (1). Examples of such materials include a collection of partially bonded fibers, such as a nonwoven fabric. In FIG. 2, the position part of the plane of such a nonwoven fabric is expanded and shown. A plurality of fibers (nonwoven fabric fibers) 13 constituting the nonwoven fabric are bonded to each other via a welded material 15 in the bonding portion 14 to form an aggregate. The fiber 13 may be a fiber known in the art as a fiber for nonwoven fabric, for example, rayon fiber, cellulose acetate fiber, polyethylene terephthalate (PET) fiber, nylon fiber, polylactic acid fiber, polyolefin fiber, or the like. The welded material 15 is a non-woven fabric in which binder fibers such as polyvinyl alcohol (PVA) fiber, polyethylene glycol (PEG) fiber, vinylon fiber, etc. are melted in the step of overlaying and drying the surface layer 11 and the back surface layer 12 described later. The fibers 13 for use are bonded together. The nonwoven fabric may contain pulp in addition to the nonwoven fabric fibers 13 and the binder fibers. The nonwoven fabric preferably contains fibers 13 having a thickness of 0.8 dtex or more and has a basis weight of 10 gsm or more. More preferably, the nonwoven fabric includes fibers 13 having a thickness of 3.3 dtex or more and has a basis weight of 10 gsm or more. Usually, the thickness of the nonwoven fabric fiber 13 varies depending on the type of the raw material of the fiber and the use of the nonwoven fabric, but exists from 0.0001 dtex to over 1000 dtex. Further, the basis weight of ordinary nonwoven fabrics varies depending on the purpose. In one preferred embodiment, each of the constituent fibers of the nonwoven fabric has a thickness of 0.8 dtex or more and 20 dtex or less, and a basis weight of 10 gsm or more and 50 gsm or less. In another preferred embodiment, each of the constituent fibers of the nonwoven fabric has a thickness of 3.3 dtex or more and 20 dtex or less, and a basis weight of 10 gsm or more and 50 gsm or less. Further, the nonwoven fabric may be colored with a dye such as a food dye. In the present specification, “nonwoven fabric” includes paper. Generally, as a method for forming a nonwoven fabric, for example, a dry method, a wet method, a spunbond method, a melt blown method, and an airlaid method are known. Moreover, as a method of bonding fibers constituting the nonwoven fabric, for example, a chemical bond method, a thermal bond method, a needle punch method, and a hydroentanglement method are known. The nonwoven fabric included in the surface layer 11 is formed by a wet method, and the nonwoven fabric fibers 13 are bonded together by a thermal bond method. However, as a nonwoven fabric forming method and a nonwoven fabric fiber 13 bonding method, there are other methods. A generally known method may be used.

Table 1 shows general physical properties required for chip paper. In order for the chip paper 1 to satisfy the general physical properties required for the chip paper, for example, the tensile strength as a whole, a back layer 12 can be provided on the lower surface of the surface layer 11. The back surface layer 12 can be formed of, for example, pulp, which is known in the art as a material for chip paper.

  The chip paper 1 can be obtained by combining the front surface layer 11 and the back surface layer 12 by a paper making method known to those skilled in the art. This papermaking method includes a step of combining at least a material constituting the surface layer 11 and a material constituting the back layer 12 and a step of drying. As the paper machine, conventionally known ones such as a circular net paper machine, an inclined short net paper machine, a long net paper machine, a short net paper machine, etc. can be used, and the paper machines can be appropriately combined according to the required characteristics. Can do. In this papermaking method, for example, a wet paper formed from a suspension of a material constituting the surface layer 11 by a circular paper machine and a suspension of a material constituting the back layer 12 by a long paper machine. And a step of combining the wet paper that has been formed. The wet paper webs thus bonded can be dried by a conventionally known drying method such as a Yankee dryer type, a multi-cylinder type, a hot air type, an infrared heating type or the like. In one embodiment, the wet paper laminate of the front surface layer 11 and the back surface layer 12 can be dried by a dryer having a temperature of 100 ° C to 150 ° C. At this time, the fibers of the surface layer 11 that are adhesive when melted, such as polyvinyl alcohol (PVA) fibers, polyethylene glycol (PEG) fibers, vinylon fibers, etc., are melted by the heat of the dryer. As a result, the welded product 15 having adhesiveness is obtained, and the welded product 15 can bond the fibers 13 constituting the surface layer 11 to each other. In addition, as a method of combining the surface layer 11 and the back surface layer 12, it is not limited to the above-mentioned papermaking method, You may use the other well-known papermaking method. As such a papermaking method, the method described in pages 284 to 305 of the Paper Pulp Technology Association “Paper and Pulp Technology Handbook 1982” can be used.

  The conventional chip paper is not a structure in which two layers having different physical properties are combined, like a commonly used printing paper, but a single layer structure, and the surface characteristics of the front and back surfaces are almost the same. The smoothness of these two surfaces is high. Therefore, in the cigarette with a filter provided with the conventional chip paper, the smoker's lips and the chip paper tend to adhere to each other when smoking. As a result, the lipstick and the like attached to the smoker's lips are easily transferred to the chip paper. Also, with conventional chip paper, depending on the condition and environment of the smoker's lips, when the lip is released from the chip paper during cigarette smoking, the smoker's lips may adhere to the chip paper and the adhesion is strong Sometimes the lips peel off.

  However, the chip paper 1 according to this embodiment can reduce the contact area between the lips and the chip paper 1 by including the surface layer 11 having a surface property that satisfies the above formula (1). It is possible to reduce the adherence of substances such as lipsticks that adhere to the surface of the smoker's lips to the chip paper 1. Furthermore, even when lipstick is not used, it is possible to prevent the occurrence of unpleasant phenomena such as attachment of the lip skin of the smoker to the chip paper and peeling of the lip skin when released. It expresses that the lip release property is excellent with respect to the quality that the tip paper and lips are easily separated when releasing this cigarette.

(Second Embodiment)
FIG. 3 shows a schematic cross-sectional view of the chip paper 2 according to the second embodiment. The chip paper 2 according to the second embodiment has the same configuration as the chip paper 1 according to the first embodiment except that the front surface layer 11 and the back surface layer 12 are bonded together by the adhesive layer 21.

  As the adhesive layer 21, a water-based adhesive or a hot-melt adhesive can be used. As the water-based adhesive, for example, starch-based, cellulose-based, PVA-based, polyvinyl acetate (PVAc) -based, and ethylene vinyl acetate (EVA) -based adhesives can be used. As the hot-melt adhesive, a resin-based, polyethylene (PE) -based, or polypropylene (PP) -based adhesive can be used. When a resin-based adhesive is used as the adhesive, the resin-based adhesive layer 21 is glossy and reflects light incident on the resin-based adhesive layer 21. It is possible to provide elegant chip paper with a unique texture that leaks. Further, as the adhesive layer 21, a layer colored by mixing the above-described adhesive and dye may be used.

(Third embodiment)
FIG. 4 is a schematic cross-sectional view of the chip paper 3 according to the third embodiment. The chip paper 3 according to the third embodiment has the same configuration as the chip paper 1 according to the first embodiment, except that a coating agent layer 31 is provided on the upper surface of the surface layer 11.

  The coating agent layer 31 can be provided by applying a coating agent on the upper surface of the surface layer 11. By providing the coating agent layer 31, the fibers of the surface layer 11 can be prevented from falling off. As the coating agent, for example, starch, nitrocellulose, polyvinyl alcohol, or a combination thereof can be used. The coating amount is preferably a coating amount that does not significantly change the surface properties of the surface layer 11. For example, 0.8 gsm or less is preferable from the viewpoint of ensuring the surface properties of the nonwoven fabric.

(Fourth embodiment)
Next, the chip paper 4 according to the fourth embodiment will be described with reference to FIGS.

  5A and 5B show a chip paper 4 according to the fourth embodiment, in which FIG. 5A is a perspective view of the back layer 12 and FIG. 5B is a perspective view of the entire chip paper 4. FIG. 6 is a schematic cross-sectional view taken along line VI-VI in FIG. The chip paper 4 according to the fourth embodiment includes a front surface layer 11, a back surface layer 12, and an adhesive layer 21. As shown in FIG. 5A, the back surface layer 12 includes a decorative portion 41 on the upper surface (the surface facing the surface layer 11). The decorative portion 41 can be provided by printing a decorative pattern on the upper surface of the back surface layer 12. The chip paper 4 has the same configuration as the chip paper 2 according to the second embodiment except that the decorative portion 41 is provided on the back surface layer 12, but the adhesive used as the adhesive layer 21 (FIG. 6). The agent is preferably transparent so that the decorative part 41 can be seen through the surface layer 11.

  As shown in FIG. 5B, in the chip paper 4, the decorative portion 41 is seen through the surface layer 11 because the decorative portion 41 is provided on the upper surface of the back surface layer 12, and the design property is excellent. It is a thing.

(Fifth embodiment)
In FIG. 7, the schematic sectional drawing of the chip paper 5 which concerns on 5th Embodiment is shown. The chip paper 5 according to the fifth embodiment has the same configuration as the chip paper 1 according to the first embodiment, except that the surface modifier layer 51 is provided on the upper surface of the surface layer 11. .

  The surface modifying material layer 51 can be provided on the upper surface of the surface layer 11 by, for example, applying a surface modifying agent that suppresses adhesion to chip paper such as lipstick. As the surface modifier, for example, a fluorine-based resin or a silicon-based resin can be used. By forming the surface modifier layer 51, it is possible to further suppress the adhesion of substances to the surface of the chip paper 5. The thickness of the surface modifier layer 51 can be appropriately adjusted according to the substance used as the surface modifier and the effect of reducing the adhesion of lipstick required for the chip paper 5.

(Sixth embodiment)
FIG. 8 is a schematic cross-sectional view of the chip paper according to the sixth embodiment. The chip paper 6 according to the sixth embodiment has the same configuration as the chip paper 1 according to the first embodiment except that the surface layer 11 is provided with an emboss pattern. The emboss pattern is composed of convex portions 61 and concave portions 62.

  The emboss pattern can be provided by passing the chip paper between a pair of embossing rolls. By providing the embossed pattern on the surface layer 11, it is possible to provide a chip paper with excellent design properties as well as a further effect of reducing adhesion. The embossing can be performed to such an extent that the surface properties of the surface layer 11 are not impaired.

(Seventh embodiment)
FIG. 9 is a schematic cross-sectional view of the chip paper according to the seventh embodiment. The chip paper 7 according to the seventh embodiment has the same configuration as the chip paper 2 according to the second embodiment, except that the surface layer 11 includes, for example, a plurality of colored portions 71 that are separated from each other. Have.

  Each colored portion 71 extends from the upper surface of the surface layer 11 to the surface facing the back surface layer 12. The coloring part 71 can be formed by printing a coloring material such as ink from the upper part of the surface layer 11 by gravure printing or ink jet printing. By providing the colored portion 71 on the surface layer 11, it is possible to express a texture different from that when printed on chip paper having a normal flat surface.

(Eighth embodiment)
Next, a smoking article with a filter according to an eighth embodiment will be described. Here, a cigarette with a filter will be described as an example of a smoking article with a filter. However, the smoking article with a filter is not limited thereto, and the smoking article with a filter is another smoking article to which a filter is connected, for example, cigar, cigarillo, electric heating / It may be a non-combustion type smoking tool utilizing non-chemical reaction heat, a non-heating type smoking tool, or the like.

  As shown in FIG. 10, the cigarette 8 with a filter includes a cigarette rod 81, a filter 82 disposed so that the end portions of the cigarette rod 81 are butted against each other, the entire outer circumferential surface of the filter 82 and the outer circumference of the cigarette rod 81 in the vicinity of the butting The surface portion is wound, and a chip paper 83 that integrates the cigarette rod 81 and the filter 82 is provided. The cigarette rod 81 includes a cigarette notch 84 and a wrapping paper 85 that winds the cigarette notch 84 in a cylindrical shape. The filter 82 includes, for example, a filter material (not shown) formed by bundling or folding a nonwoven fabric of acetate fiber or pulp, and a filter paper 86 in which the filter material is spread in a columnar shape.

  The cigarette 8 with a filter according to such an embodiment maintains the functional characteristics (such as tensile strength and opacity) from the effects of the chip paper according to the first to seventh embodiments described above, and the lip of the smoker. It is possible to reduce the adhesion of the lipstick on the surface to the chip paper.

(Example)
In order to clarify the relationship between the surface properties of chip paper and the degree of adhesion of lipstick, (1) measurement of degree of adhesion and (2) sensory evaluation were performed using test samples. Hereinafter, it will be described in detail with reference to the drawings.

  First, test samples having different characteristics were prepared. The test sample includes a front surface layer and a back surface layer. A surface layer consists of a nonwoven fabric. Nonwoven fabrics are made from wood pulp and / or rayon fibers by hand and have different surface roughness, fiber length and basis weight for each test sample. As the rayon fiber, one having a thickness of 0.1 dtex to 11.0 dtex was used. In addition, a test sample using polyvinyl alcohol or starch as a coating agent was also prepared for preventing the fibers from falling off.

  As the back layer, paper using wood pulp, which is generally used as a material for chip paper, was used. Moreover, the test sample which bonded the surface layer and the back surface layer together using the vinyl acetate adhesive or the resin adhesive was also produced.

  The surface roughness was measured using Surf Test SJ-210 (trade name) manufactured by Mitutoyo Corporation. A Gaussian filter was used for the filter processing in the measurement of the surface roughness. A detector having a stylus tip R = 2 μm and a tip angle of 60 ° was used. The measurement conditions were determined by setting the standard conditions to conform to ISO 1997, and setting the roughness curve R to the cutoff values λc = 2.5 mm, λs = 8 μm, and the number of sections (N) 4.

(1) Measurement of degree of adhesion Reproduction of adhesion to lipstick Using a rheometer, the adhesion of the lipstick attached to the smoker's lips when actually using a cigarette with a filter was reproduced. FIG. 11 is a diagram for explaining a method of attaching lipstick 95 to chip paper 93 using a rheometer (manufactured by Sun Scientific, CR-3000EX-S).

  FIG. 11A is a schematic diagram illustrating a state in which a test sample chip paper 93 is set in a rheometer.

  The rheometer includes a cylindrical plunger 91 having a diameter of 10 mm and a measuring table 92 on which a test sample chip paper 93 is placed. Next, the chip paper 93 of the test sample is placed on the upper surface of the measuring table 92 of the rheometer. The gel 94 is placed on the upper surface of the chip paper 93. Gel 94 has elasticity and softness similar to those of human lips, and has physical properties such that the pressure when deformed by 1 mm is 0.53N ± 0.34, manufactured by EXCIL Corporation, product number: H0 -1, "Human skin gel" (trade name) was used. A lipstick 95 is applied to the lower surface of the gel 94, that is, the surface of the chip paper 93. As the lipstick 95, Max Factor Angelic Lip Brillante (trade name, product number B542) was used. A flat plate 96 is placed on the upper surface of the gel 94. The flat plate 96 can make the pressure applied to the chip paper 93 uniform when the plunger 91 is pushed in a direction perpendicular to the plane of the gel 94 and the chip paper 93. The flat plate 96 is, for example, a plastic flat plate. The chip paper 93, the gel 94, and the flat plate 96 are sandwiched between the plunger 91 and the measuring table 92.

  FIG. 11B shows that the plunger 91 is pushed in a direction perpendicular to the plane of the flat plate 96, the gel 94 and the chip paper 93, so that a constant pressure is applied in the vertical direction to the flat plate 96, the chip paper 93 and the gel 94. It is a figure which shows the state which took a certain time. At this time, the pressure applied to the chip paper 93 is about 2.5 N and about 1 second after the start of pressurization so that the pressure applied to the chip paper is substantially the same as the pressure applied to the chip paper when actually smoking a cigarette with a filter. The maximum pressure was reached and the pressure was set to 0 N after about 2 seconds. At this time, the moving speed of the plunger 91 in the direction of the measuring table 92 was set to be 70 mm / min. As a result, the lipstick 95 attached to the gel 94 is transferred to the chip paper 93, and the adhesion of the lipstick 95 to the chip paper 93 when the cigarette with a filter provided with the chip paper 93 of the test sample is actually used is reproduced. can do.

Measurement of the degree of lipstick adhesion The measurement of the degree of lipstick adhesion to the chip paper is performed by attaching the lipstick to the tip paper using the rheometer as described above, and then attaching the lipstick to the tip paper lipstick. This was done by measuring the color difference ΔE from the unexposed portion. For the measurement of the color difference ΔE, an average value of the coordinates of the L * a * b * color system of the color difference display method defined by the CIE is obtained using a spectrophotometer (product name: SpectroEye, manufactured by x-rite). This was carried out by calculating a color difference ΔE between the portion of the chip paper where the lipstick adhered and the portion where the lipstick did not adhere. The measurement conditions with the spectrophotometer were the light source D65, no light source filter, and a viewing angle of 2 °.

Results The measurement results obtained above will be described. As a comparative example, the same measurement was performed on an existing white chip paper of 37 gsm. As a result, the color difference ΔE was 51.2.

First, Table 2 shows the relationship between fiber length, fiber thickness, and color difference ΔE for a test sample having a rayon compounding ratio of 90% by weight, a fibrous PVA compounding ratio of 10% by weight, and a basis weight of 30 gsm. . As is apparent from Table 2, ΔE decreases as the fiber thickness increases, and it is understood that thicker fibers are preferable. It was also found that when the fiber thickness was 0.8 dtex or more, the color difference ΔE was about 10 lower than the color difference ΔE of the comparative example, and the effect of reducing lipstick adhesion was obtained. Furthermore, it was found that when the fiber thickness is 3.3 dtex or more, the color difference ΔE is lower by about 30 or more than the color difference ΔE of the comparative example, and a further lipstick adhesion reduction effect can be obtained.

Further, the blending ratio of fibrous PVA is 10% by weight, the blending ratio of rayon is as shown in Table 3, the remainder of the blending ratio is made of wood pulp, and the thickness of the rayon is about 7.8 dtex. Table 3 shows the relationship between the basis weight, the rayon blending ratio of the nonwoven fabric, and the color difference ΔE. First, looking at the relationship between the basis weight and the color difference ΔE, it can be seen that it is preferable that the basis weight is low because the color difference ΔE decreases as the basis weight decreases. However, although not shown in Table 3, in the nonwoven fabric having a basis weight of less than 10 gsm, the gel dives between the fibers of the nonwoven fabric and reaches the back surface layer, resulting in the effect that the effect of reducing lipstick adhesion is significantly impaired. The basis weight of the nonwoven fabric was found to be preferably 10 gsm or more. Next, looking at the relationship between the rayon blending ratio of the nonwoven fabric and the color difference ΔE, as the rayon blending ratio of the nonwoven fabric increases, the color difference ΔE decreases, and the higher the rayon blending ratio of the nonwoven fabric, the higher the effect of reducing lipstick adhesion. I understand that.

  Among the test samples, the rayon compounding ratio is 90% by weight, the fibrous PVA compounding ratio is 10% by weight, the basis weight is 15 gsm, and the test sample chip paper using the starch coating agent has the highest lipstick adhesion reduction effect. was gotten.

Relationship between surface roughness and color difference In addition, using the data on surface roughness and color difference ΔE obtained as described above, a multiple regression analysis was performed using color difference ΔE as an objective variable and various roughness parameters as dependent variables. . As a result, with respect to the roughness parameter, it was found that the color difference ΔE can be estimated with two variables of skewness Rsk and average height Rc. That is, the color difference ΔE is obtained from the skewness Rsk and the average height Rc by the equation: ΔE = −8.18 × Rsk−0.21 × Rc + 40, and the degree of lipstick adhesion to the chip paper can be estimated from the color difference ΔE. I understood. Incidentally, the square of the multiple correlation coefficient by the correlation analysis ^was r 2 = 0.82. In addition, the square (r ² ) of the single correlation coefficient according to the single correlation analysis of each of Rsk and Rc was r ² = 0.28 for Rsk and r ² = 0.67 for Rc. If you want to reduce the color difference ΔE, that is, if you want to increase the effect of reducing the adhesion of lipstick, increase Rsk to reduce the contact area between the lips and chip paper, and / or the effect of the lips biting between the fibers of the surface layer In order to reduce this, Rc may be increased.

  FIG. 12 plots the results measured on 38 test samples with the skewness (Rsk) as the X-axis coordinate value and the average height (Rc) as the Y-axis coordinate value, and shows the relationship between the surface roughness and the color difference ΔE. FIG. In the figure, the test sample in which the measured color difference ΔE is ΔE <10 is a white circle plot, and the test sample in which 10 ≦ ΔE <20 is a black circle plot, 20 ≦ ΔE <30. The test sample is indicated by a white square plot, and the test sample satisfying 30 ≦ ΔE <40 is indicated by a black square plot. In addition, as a comparative example, the measurement result when using an existing white chip paper of 37 gsm is also indicated by a white triangular plot.

  Further, the line in the figure represents a straight line: ΔE = −8.18 × Rsk−0.21 × Rc + 40, and in the straight line formula, a line when ΔE = 10 (solid line), ΔE = 20. A case line (dashed line), a line when ΔE = 30 (broken line), and a line when ΔE = 40 (dotted line) are shown.

  As described above, the color difference ΔE measured with the existing white chip paper of 37 gsm of the comparative example is 51.2. Compared with the color difference ΔE measured with the existing white chip paper of 37 gsm as a comparative example, the visually identifiable level is a color difference ΔE = 10 corresponding to one step of the Munsell color chart, that is, the comparative example. Assuming that the color difference ΔE is 10 or more lower than the color difference ΔE measured in step 1, the color difference ΔE measured on the chip paper of the test sample plotted in FIG. It was.

  Based on this result, if ΔE <40, which is 10 or more lower than the color difference ΔE measured with the existing white chip paper of 37 gsm, is used as the discriminable region, the formula (1): −8.2 × Rsk−0. It is necessary to satisfy 2 × Rc <0. Further, as a more remarkable effect, if it is necessary that the color difference ΔE <20 lower than the color difference ΔE measured by the existing 37 gsm white chip paper, the formula (2): −8.2 × Rsk− It is necessary to satisfy 0.2 × Rc <−20.

  As described above, it was found that the degree of adhesion of the adhered material on the lip surface to the chip paper can be parameterized and calculated by the surface properties (Rsk and Rc) of the surface layer.

(2) Sensory evaluation With 6 female panelists, the cigarette with a filter equipped with the tip paper of the test sample was actually used with the lipstick attached to the lips or the lipstick attached to the lips once wiped with tissue paper etc. And sensory evaluation about the adhesion state of the lipstick to chip paper was performed. FIG. 13 shows the result. FIG. 13 is a diagram in which the evaluation results are plotted with the measured color difference ΔE on the horizontal axis and the sensory amount on the vertical axis. The evaluation results for the test samples are represented by white rhombus plots, and the evaluation results for the comparative examples are represented by black rhombus plots. The sensory amount in the figure is “0” when the female panel feels that there is no lipstick attached to the chip paper, and “1” when the lipstick feels slightly attached. “2” when the lipstick feels slightly attached, “3” when the lipstick clearly feels attached, and “4” when the lipstick feels considerably attached. “When the lipstick feels very attached, it is evaluated as a numerical value of“ 5 ”, and is an average value of numerical values obtained from six female panels. Further, a square surrounding the plotted points in the figure represents a range of 1σ variation. That is, if the variation in answer results is large, the square is large, and if the variation is small, the square is small. In addition, a straight line connecting the plotted points of the test sample and the comparative example and a rectangle representing the range of variation are solid lines when representing the evaluation when the lipstick is not wiped with tissue, etc., and representing the evaluation when wiping once Is indicated by a dotted line.

  As is clear from FIG. 13, in the sensory evaluation when the lipstick attached to the lips was not wiped with tissue or the like, it was evaluated as “substantially adhered” in the comparative example, whereas for the test sample, “slightly” It has been evaluated as “attached”, and the amount of lipstick attached to the chip paper is low. In addition, the color difference ΔE is about 50 in the comparative example, but is measured as about 30 in the test sample, and is reduced in the same manner as the sensory amount, and when the lipstick attached to the lips is not wiped with tissue, It can be seen that the color difference ΔE and the sensory amount have a correlation.

  In addition, in the sensory evaluation when the lipstick attached to the lips was once wiped with a tissue or the like, the comparative example was evaluated as “slightly attached”, whereas the test sample was “slightly attached”. The sensory amount of lipstick adhesion to chip paper is decreasing. In addition, the color difference ΔE is about 20 in the comparative example, but is measured to be about 7 in the test sample, and is reduced similarly to the sensory amount. Even when the lipstick attached to the lips is once wiped with a tissue or the like. It can be seen that the color difference ΔE and the sensory amount have a correlation.

  Moreover, when the lip release property of the test sample was measured in the same manner, it was found that the lip release property was overwhelmingly superior to the chip paper of the comparative example.

  Therefore, a questionnaire was conducted to the above six panelists regarding whether or not the test sample and the chip paper of the comparative example were attractive as a lipstick adhesion reducing product, and all the comparative examples answered that they did not feel attractive. On the other hand, for the test sample chip paper, one person is “very attractive”, one is “very attractive”, three are “somewhat attractive”, one is “slightly attractive” The test sample chip paper was found to be overwhelmingly more attractive than the 37 gsm existing white chip paper of the comparative example.

  As described above, it was demonstrated that the chip paper of the test sample has a lipstick adhesion reducing effect and lip release property that are also effective in sensory evaluation.

  In addition, although some embodiment was described, these embodiment is an illustration and does not limit the scope of the invention. These embodiments can be implemented in various other forms, and various changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Chip paper which concerns on 1st Embodiment 11 ... Surface layer 12 ... Back surface layer 13 ... Fiber 14 ... Bonding part 15 ... Welding thing 2 ... Chip paper which concerns on 2nd Embodiment 21 ... Adhesive layer 3 ... 3rd Chip paper 31 according to the embodiment 31 ... Coating agent layer 4 ... Chip paper according to the fourth embodiment 41 ... Decoration part 5 ... Chip paper according to the fifth embodiment 51 ... Surface modifier layer 6 ... Sixth Chip paper according to the embodiment 61 ... convex part 62 ... concave part 7 ... chip paper according to the seventh embodiment 71 ... colored part 8 ... cigarette with filter 81 ... cigarette rod 82 ... filter 83 ... chip paper 84 ... cigarette cut 85 ... Wrapping paper 86 ... Filter paper 91 ... Plunger 92 ... Measuring table 93 ... Chip paper 94 ... Gel 95 ... Lipstick 96 ... Flat plate

Claims (14)

It has a surface layer and a back layer,
The chip paper, wherein the surface layer has a surface property satisfying the following formula (1).
Formula (1): -8.2 * Rsk-0.2 * Rc <0
(Where Rsk is the surface skewness and Rc is the average height) The chip paper according to claim 1, wherein the surface layer has a surface property that satisfies the following formula (2).
Formula (2): −8.2 × Rsk−0.2 × Rc <−20 The chip paper according to claim 1 or 2, wherein the surface layer includes an aggregate of partially bonded fibers.   The chip paper according to claim 1 or 2, wherein the surface layer is a non-woven fabric.   The chip paper according to claim 4, wherein the nonwoven fabric contains rayon fiber or polyolefin fiber.   6. The chip paper according to claim 4, wherein the nonwoven fabric includes fibers having a thickness of 0.8 dtex or more and has a basis weight of 10 gsm or more.   6. The chip paper according to claim 4, wherein the nonwoven fabric includes fibers having a thickness of 3.3 dtex or more and has a basis weight of 10 gsm or more.   The chip paper according to any one of claims 4 to 7, wherein the nonwoven fabric contains a coating agent made of a polymer.   The chip paper according to claim 8, wherein the coating agent comprises starch, nitrocellulose, polyvinyl alcohol, or a combination thereof.   The chip paper according to any one of claims 1 to 9, wherein the front surface layer and the back surface layer are bonded together with a water-based adhesive or a hot-melt adhesive.   The chip paper according to any one of claims 1 to 10, wherein a surface of the back surface layer facing the surface layer is decorated.   The chip paper according to any one of claims 1 to 11, wherein the surface layer has a surface modifier made of a fluorine-based resin or a silicon-based resin on a surface thereof.   The chip paper according to claim 1, wherein the surface layer has an emboss pattern. Tobacco rod and
A filter,
A tip paper for connecting the tobacco rod and the filter;
A smoking article with a filter, wherein the chip paper is the chip paper according to any one of claims 1 to 13.