JP2005274340A - Method ad device for evaluating feeling of gloss, and system for discriminating material excellent in feeling of gloss - Google Patents
Method ad device for evaluating feeling of gloss, and system for discriminating material excellent in feeling of gloss Download PDFInfo
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Abstract
Description
本発明は、人の目視での光沢の感覚を精度高く数値化する評価方法、及び該評価方法を用いて、光沢感に優れる材料を識別するシステムに関する。 The present invention relates to an evaluation method for accurately quantifying a human sense of gloss and a system for identifying a material having excellent gloss using the evaluation method.
従来から、インク組成物等により形成される記録画像、記録物等の写像性や光沢性を評価する技術が種々開発されている。しかし、写像性を評価する装置、光沢性を評価する装置というように装置のそれぞれは存在するが、各装置により得られるそれぞれの値を活用して、人間の目視による光沢感覚を精度高く数値化できるシステムは存在しない。 2. Description of the Related Art Conventionally, various techniques for evaluating image clarity and glossiness of recorded images and recorded materials formed with an ink composition or the like have been developed. However, there are devices such as a device that evaluates image clarity and a device that evaluates glossiness, but using each value obtained by each device, the human sense of gloss is accurately quantified. There is no system that can do this.
更に、記録画像等の材料の光沢性については、従来その評価方法が画一的ではなく、実際に人の目視による光沢性の評価と客観的な数値データとしての評価にズレが生じていた。 Furthermore, regarding the glossiness of materials such as recorded images, conventionally, the evaluation method has not been uniform, and there has actually been a shift between the evaluation of glossiness by human eyes and the evaluation as objective numerical data.
本発明が解決しようとする問題点は、前述した従来技術における問題点である。
従って、本発明の目的は、人の目視での光沢の感覚を精度高く数値化する評価方法、及び該評価方法を用いて、光沢感に優れる材料を識別するシステムを提供することにある。
The problem to be solved by the present invention is a problem in the above-described prior art.
Accordingly, an object of the present invention is to provide an evaluation method for accurately quantifying a human sense of gloss visually, and a system for identifying a material having a high gloss feeling using the evaluation method.
本発明者は、鋭意研究した結果、少なくとも所定の光沢度と写像性値を用いて特定される光沢感覚値を指標とした記録画像等の材料の光沢感を評価する方法が、前記他の目的を達成し得ることの知見を得た。 As a result of earnest research, the present inventor has developed a method for evaluating the glossiness of a material such as a recorded image using at least a glossiness value specified using a predetermined glossiness and image clarity value as an index. The knowledge that can be achieved.
本発明は、前記知見に基づきなされたもので、下記式で得られる算出値を光沢感覚値として指標する光沢感の評価方法を提供するものである。 The present invention has been made on the basis of the above knowledge, and provides a glossiness evaluation method in which a calculated value obtained by the following formula is indexed as a glossiness value.
（光沢感覚値）＝[正反射(限幅)光沢度／基準光沢度]2×（写像性値／基準写像性値） (Glossy sensation value) = [regular reflection (limited width) glossiness / reference glossiness] 2 × (image clarity value / standard image clarity value)
本発明の評価方法によれば、評価対象物の種類に関わらずに人の目視での光沢の感覚を精度高く数値化できる。これにより、実際に人の目視による光沢感の評価と客観的な数値データとしての評価とのズレを解消できる。また、材料（評価対象物）ごとに、或いは求める光沢の質感ごとに、任意に目標とする光沢を設定することができる。さらに、材料開発の指標となるのみならず、製品の品質検査等に広く活用することができる。 According to the evaluation method of the present invention, it is possible to digitize the sense of gloss of human eyes with high accuracy regardless of the type of the evaluation object. As a result, it is possible to eliminate the difference between the evaluation of glossiness visually observed by human eyes and the evaluation as objective numerical data. In addition, a target gloss can be arbitrarily set for each material (evaluation object) or for each desired gloss texture. Furthermore, it can be used not only as an index for material development but also for product quality inspections.
本発明に係る評価方法に用いられる前記用語は、それぞれ下記に示す通りに定義される。 The terms used in the evaluation method according to the present invention are defined as shown below.
正反射(限幅)光沢度：規定された入射角で規定された開き角の光束を評価対象面に入射し、鏡面反射方向に反射する規定の開き角の光束を受光器で測定したときの、入射光に対する反射光の相対強度。 Regular reflection (limited width) glossiness: When a light beam with a specified opening angle is incident on the surface to be evaluated at a specified incident angle, and the light beam with a specified opening angle that reflects in the specular reflection direction is measured with a light receiver. , The relative intensity of reflected light with respect to incident light.
写像性値 ：対象となる塗装面等に物体が映ったときの像が、どの程度鮮明にひずみなく映し出されるかの尺度（ＪＩＳ Ｈ８６８６やＪＩＳ Ｋ７１０５等で規定されている値）。
基準光沢度 ：評価対象物の種類ごとに定める一定の数値。
基準写像性値 ：評価対象物の種類ごとに定める一定の数値。
Image clarity value: A measure of how sharply an image is projected when an object is reflected on a target painted surface or the like (value defined in JIS H8686, JIS K7105, etc.).
Standard glossiness: A fixed value determined for each type of object to be evaluated.
Standard mapping value: A fixed value determined for each type of evaluation object.
また、本発明は、以下に示すそれぞれの発明を提供するものである。 The present invention also provides the following inventions.
前記正反射(限幅)光沢度は、光源に１２Ｖ５０Ｗのハロゲンランプ、フィルターにＮＤ−１０を用い、感度５００、煽り角度０度において、入射角４５度で幅１ｍｍのスリットから入射光を評価対象物に対して照射したときに、該評価対象物により反射されて幅１．５ｍｍのスリットから放出された反射光について、反射角４５度で標準鏡面板の光沢度が４２．５となるように光源に印加する電圧を調整したとき、反射角度４２度から４８度の範囲で、相対値として測定される反射光強度各値のうちの最高値である、前記評価方法。
このようにして規定される正反射(限幅)光沢度に基づいた評価方法によれば、人の目視での光沢の感覚をより精度高く数値化できる。これにより、実際に人の目視による光沢感の評価と客観的な数値データとしての評価とのズレを一層解消できる。
The specular reflection (limited width) glossiness is evaluated by using a 12V50W halogen lamp as a light source, ND-10 as a filter, and measuring incident light from a slit with a width of 1 and a width of 1 mm at a sensitivity of 500 and a turning angle of 0 degrees When the object is irradiated with light reflected from the evaluation object and emitted from a slit having a width of 1.5 mm, the gloss of the standard mirror plate is 42.5 at a reflection angle of 45 degrees. The evaluation method, wherein the voltage applied to the light source is the highest value among the reflected light intensity values measured as relative values within a reflection angle range of 42 to 48 degrees when the voltage applied to the light source is adjusted.
According to the evaluation method based on the specular reflection (limited width) glossiness defined in this way, it is possible to digitize the human sense of gloss visually. Thereby, it is possible to further eliminate the deviation between the evaluation of glossiness visually observed by human eyes and the evaluation as objective numerical data.
前記写像性値は、光源に６Ｖ、０．３５Ａのスリットランプを使用し、フィルターなし、煽り角度０度において、入射角４５度で入射光を評価対象物に照射したときに、該評価対象物より反射角４５度で放出された光が移動する２ｍｍ幅の光学くしを通過した際の受光量のゆらぎを、下記式に導入して得られた値である、前記評価方法。
（写像性値(％)）＝（受光量の最大値−受光量の最小値）／（受光量の最大値＋受光量の最小値）×１００
このようにして規定される写像性値に基づいた評価方法によれば、人の目視での光沢の感覚をより精度高く数値化できる。これにより、実際に人の目視による光沢感の評価と客観的な数値データとしての評価とのズレを一層解消できる。
The image clarity value is obtained when a 6V, 0.35A slit lamp is used as a light source, no filter is used, and an evaluation object is irradiated with incident light at an incident angle of 45 degrees at a turning angle of 0 degrees. The evaluation method, which is a value obtained by introducing the fluctuation of the amount of received light when passing through an optical comb having a width of 2 mm where light emitted at a reflection angle of 45 degrees moves to the following equation.
(Image clarity value (%)) = (maximum received light amount−minimum received light amount) / (maximum received light amount + minimum received light amount) × 100
According to the evaluation method based on the image clarity value thus defined, it is possible to digitize the human sense of gloss visually with higher accuracy. Thereby, it is possible to further eliminate the deviation between the evaluation of glossiness visually observed by human eyes and the evaluation as objective numerical data.
前記基準光沢度として、４２．５以上の数値を使用する、前記評価方法。
この評価方法によれば、光沢感覚値の高い物質に対する指標値が得られる点で好ましい。この値を高く設定するほど有用である。
The evaluation method using a numerical value of 42.5 or more as the reference glossiness.
This evaluation method is preferable in that an index value for a substance having a high gloss sensation value can be obtained. The higher this value is, the more useful it is.
前記基準光沢度として、６０度の全幅光沢度の２分の１の値を使用する、前記評価方法。
この評価方法によれば、光沢感覚値の高い物質に対する指標値としてより有用である点で好ましい。ここで、６０度の全幅光沢度とは、評価対象物に入射角６０度で入射光を照射したとき、他の方向での受光量を積算した値をいい、日本電工社製の光沢度計ＰＧ１Ｍ等により測定できる。
The evaluation method according to claim 1, wherein the reference glossiness is a value that is half of the full-width glossiness of 60 degrees.
This evaluation method is preferable in that it is more useful as an index value for a substance having a high gloss sensation value. Here, the full-width glossiness of 60 degrees refers to a value obtained by integrating the amount of received light in other directions when the evaluation object is irradiated with incident light at an incident angle of 60 degrees. It can be measured by PG1M or the like.
前記基準写像性値として、５０以上の数値を使用する、前記評価方法。
この評価方法によれば、光沢感覚値の高い物質に対する指標値が得られる点で好ましい。この値を高く設定するほど有用である。
The evaluation method using a numerical value of 50 or more as the reference image clarity value.
This evaluation method is preferable in that an index value for a substance having a high gloss sensation value can be obtained. The higher this value is, the more useful it is.
評価対象物が顔料インクでインクジェット記録した記録画像である場合に、下記式で得られる算出値を光沢感覚値として指標する光沢感の評価方法。
（光沢感覚値）＝[正反射(限幅)光沢度／６０]2×（写像性値／６０）
この評価方法によれば、顔料インクでインクジェット記録した記録画像に対して、人の目視での光沢の感覚を精度高く数値化できる。
A glossy evaluation method in which a calculated value obtained by the following formula is used as a glossy sensation value when an evaluation object is a recorded image that is inkjet-recorded with pigment ink.
(Glossy sensation value) = [regular reflection (limited width) glossiness / 60] 2 × (image clarity value / 60)
According to this evaluation method, it is possible to accurately quantify the human sense of gloss with respect to a recorded image that is ink-jet recorded with pigment ink.
評価対象物が染料インクでインクジェット記録した記録画像であるか又は銀塩写真である場合に、下記式で得られる算出値を光沢感覚値として指標する光沢感の評価方法。
（光沢感覚値）＝[正反射(限幅)光沢度／３０]2×（写像性値／６０）
この評価方法によれば、染料インクでインクジェット記録した記録画像又は銀塩写真に対して、人の目視での光沢の感覚を精度高く数値化できる。
A glossiness evaluation method in which a calculated value obtained by the following formula is indexed as a glossiness sense value when the evaluation object is a recorded image that is inkjet-recorded with a dye ink or a silver salt photograph.
(Glossy sensation value) = [regular reflection (limited width) glossiness / 30] 2 × (image clarity value / 60)
According to this evaluation method, it is possible to accurately quantify the human sense of gloss with respect to a recorded image or silver salt photograph that is ink-jet recorded with a dye ink.
正反射(限幅)光沢度と、全幅光沢度と、写像性値と、を測定する手段を少なくとも含む装置であって、下記式で得られる算出値を光沢感覚値として指標する光沢感の評価装置。
（光沢感覚値）＝[正反射(限幅)光沢度／基準光沢度]2×（写像性値／基準写像性値）
本評価装置によれば、人の目視による光沢感覚についての高精度な数値化を容易に達成できる。
Evaluation of glossiness that includes at least means for measuring regular reflection (limited width) glossiness, full-width glossiness, and image clarity value, and uses the calculated value obtained by the following formula as a glossiness value. apparatus.
(Glossy sensation value) = [regular reflection (limited width) glossiness / reference glossiness] 2 × (image clarity value / standard image clarity value)
According to this evaluation apparatus, it is possible to easily achieve a highly accurate numerical value for the glossiness visually observed by a person.
前記評価方法又は前記評価装置を使用することにより、光沢感に優れる対象を識別するシステム。
本識別システムによれば、人の目視により高い光沢感と評価される物質を容易に識別することができる。
A system for identifying an object having an excellent gloss feeling by using the evaluation method or the evaluation apparatus.
According to this identification system, it is possible to easily identify substances that are evaluated as having a high glossiness by human eyes.
以下、本発明に係る光沢感の評価方法につき好ましい実施形態に基づき詳細に説明する。 Hereinafter, the glossiness evaluation method according to the present invention will be described in detail based on preferred embodiments.
本発明の光沢感の評価方法は、既述の通り、下記式で得られる算出値を光沢感覚値として指標することを特徴とする。
（光沢感覚値）＝[正反射(限幅)光沢度／基準光沢度]2×（写像性値／基準写像性値）
As described above, the glossiness evaluation method of the present invention is characterized in that a calculated value obtained by the following formula is indexed as a glossiness value.
(Glossy sensation value) = [regular reflection (limited width) glossiness / reference glossiness] 2 × (image clarity value / standard image clarity value)
ここで、正反射(限幅)光沢度は、既述の通り、規定された入射角で規定された開き角の光束を評価対象面に入射し、鏡面反射方向に反射する規定の開き角の光束を受光器で測定したときの、入射光に対する反射光の相対強度である。正反射(限幅)光沢度の好ましい態様としては、次に示す測定により得られる値である。 Here, the specular reflection (limited width) glossiness is, as described above, a light beam having a specified opening angle that is incident on a surface to be evaluated and reflected in the specular reflection direction by entering a light beam having a specified opening angle at a specified incident angle. This is the relative intensity of the reflected light with respect to the incident light when the light beam is measured by a light receiver. A preferred embodiment of the regular reflection (limited width) glossiness is a value obtained by the following measurement.
即ち、好ましい態様では、光源に１２Ｖ５０Ｗのハロゲンランプ、フィルターにＮＤ−１０を用い、感度５００、煽り角度０度において、入射角４５度で幅１ｍｍのスリットから入射光を評価対象物に対して照射したときに、該評価対象物により反射されて幅１．５ｍｍのスリットから放出された反射光について、反射角４５度で標準鏡面板の光沢度が４２．５となるように光源に印加する電圧を調整したとき、反射角度４２度から４８度の範囲で、相対値として測定される反射光強度各値のうちの最高値である。ここでいう標準板とは、屈折率１．５１９の黒色光学ガラスをいう。かかる光沢度は、図１に示すような測定方法によって測定される。尚、図１は、正反射(限幅)光沢度の測定法について説明するための概略図である。正反射(限幅)光沢度は、村上色彩技術研究所のＧＰ−２００型で、上記測定条件において得ることができる。 That is, in a preferred embodiment, a 12V50W halogen lamp is used as the light source, ND-10 is used as the filter, and the evaluation object is irradiated with incident light from a slit having an incident angle of 45 degrees and a width of 1 mm at a turning angle of 0 degrees. The voltage applied to the light source so that the reflected light reflected from the evaluation object and emitted from the slit having a width of 1.5 mm has a reflection angle of 45 degrees and the glossiness of the standard mirror plate is 42.5. Is the highest value among the reflected light intensity values measured as relative values in the range of the reflection angle from 42 degrees to 48 degrees. The standard plate here means black optical glass having a refractive index of 1.519. Such glossiness is measured by a measuring method as shown in FIG. FIG. 1 is a schematic diagram for explaining a method of measuring regular reflection (limited width) glossiness. The specular reflection (limited width) glossiness can be obtained with the GP-200 model of Murakami Color Research Laboratory under the above measurement conditions.
また、写像性値は、既述の通り、対象となる塗装面等に物体が映ったときの像が、どの程度鮮明にひずみなく映し出されるかの尺度であり、例えば、ＪＩＳ Ｈ８６８６やＪＩＳ Ｋ７１０５等で規定されている値である。写像性値の好ましい態様としては、次に示す測定により得られる値である。 Further, as described above, the image clarity value is a measure of how clearly an image when an object is reflected on a target painted surface or the like is projected without distortion. For example, JIS H8686, JIS K7105, etc. This is the value specified in. A preferred embodiment of the image clarity value is a value obtained by the following measurement.
即ち、好ましい態様では、図２に示すように、光源１に６Ｖ、０．３５Ａのスリットランプを使用し、該光源１からスリット及びレンズを介して、フィルターなし、煽り角度０度において、入射角４５度で導かれる入射光３を評価対象物２に照射したときに、該評価対象物２より反射角４５度で放出された光（反射光）４がレンズを介して、図中の矢印方向に移動する２ｍｍ幅の光学くし５を通過した際の受光器６が検知する受光量のゆらぎを、下記式に導入して得られた値である。
（写像性値(％)）＝（受光量の最大値−受光量の最小値）／（受光量の最大値＋受光量の最小値）×１００
That is, in a preferred embodiment, as shown in FIG. 2, a slit lamp of 6V, 0.35A is used as the light source 1, and no incident light is incident on the light source 1 through the slit and lens at a turning angle of 0 degree. When the evaluation object 2 is irradiated with incident light 3 guided at 45 degrees, light (reflected light) 4 emitted from the evaluation object 2 at a reflection angle of 45 degrees passes through the lens in the direction of the arrow in the figure. This is a value obtained by introducing the fluctuation of the amount of received light detected by the light receiver 6 when it passes through the optical comb 5 having a width of 2 mm moving to the following equation.
(Image clarity value (%)) = (maximum received light amount−minimum received light amount) / (maximum received light amount + minimum received light amount) × 100
ここで受光器６が検知した受光量のゆらぎは、感度調整器７のつまみ等を操作して適宜感度を調整することで波形として記録計８に記憶され、これにより受光量の最大値及び最小値を導出できる。 Here, the fluctuation in the amount of light received detected by the light receiver 6 is stored in the recorder 8 as a waveform by adjusting the sensitivity appropriately by operating the knob of the sensitivity adjuster 7, thereby the maximum and minimum values of the light received. A value can be derived.
尚、図２は、写像性値の測定法について説明するための概略図であって、郵政研究所月報２００３年１月号の第１９頁、図２２に記載の機器測定の装置例（写像性測定装置）を参考にしたものである。写像性値は、スガ試験機株式会社のＩＣＰ−ＩＴ型で、上記測定条件において得られた値を採用できる。 FIG. 2 is a schematic diagram for explaining a method for measuring the image clarity value, and is an example of an apparatus measurement device (image clarity) shown in FIG. 22, page 19 of the January 2003 issue of the Postal Service Institute. (Measurement device). As the image clarity value, an ICP-IT type manufactured by Suga Test Instruments Co., Ltd. can be used, and the value obtained under the above measurement conditions can be adopted.
また、基準光沢度は、特に制限されることなく評価対象物の種類に応じて適宜所望の値を採用できるが、４２．５以上の数値を使用するのが好ましい。基準光沢度４２．５は、標準鏡面板の光沢度に相当する。また、基準光沢度として、６０度の全幅光沢度の２分の１の値も、好ましく使用される。 Further, the reference glossiness is not particularly limited, and a desired value can be appropriately adopted according to the type of the evaluation object, but it is preferable to use a numerical value of 42.5 or more. The reference glossiness 42.5 corresponds to the glossiness of the standard mirror plate. As the reference glossiness, a value that is half of the full-width glossiness of 60 degrees is also preferably used.
また、基準写像性値は、特に制限されることなく評価対象物の種類に応じて適宜所望の値を採用できるが、５０以上の数値を使用するのが好ましい。基準写像性値５０は、標準鏡面板の写像性値に相当する。 Further, the reference image clarity value is not particularly limited, and a desired value can be appropriately adopted according to the type of the evaluation object, but it is preferable to use a numerical value of 50 or more. The standard image clarity value 50 corresponds to the image clarity value of the standard mirror plate.
次に、本発明に係る光沢感の評価方法を適用するための評価対象物について詳述する。評価対象物としては、人の目視により光沢感を有すると認識できる対象物である限り特に制限されないが、例えば、顔料又は染料を含むインク組成物（顔料インク、染料インク）によりインクジェット記録した記録画像、該記録画像を含む記録物や、銀塩写真等が挙げられる。 Next, the evaluation object for applying the glossiness evaluation method according to the present invention will be described in detail. The evaluation object is not particularly limited as long as it is an object that can be recognized as having a glossy appearance by human eyes. For example, a recorded image recorded by inkjet recording with an ink composition (pigment ink, dye ink) containing a pigment or dye. , Recorded matter containing the recorded image, silver salt photograph and the like.
評価対象物が顔料インクでインクジェット記録した記録画像である場合には、既述の通り、下記式で得られる算出値を光沢感覚値として指標することが好ましい。
（光沢感覚値）＝[正反射(限幅)光沢度／６０]2×（写像性値／６０）
When the object to be evaluated is a recorded image that is inkjet-recorded with pigment ink, as described above, it is preferable to index the calculated value obtained by the following formula as the gloss sensation value.
(Glossy sensation value) = [regular reflection (limited width) glossiness / 60] 2 × (image clarity value / 60)
また、評価対象物が染料インクでインクジェット記録した記録画像であるか又は銀塩写真である場合には、既述のとおり、下記式で得られる算出値を光沢感覚値として指標することが好ましい。
（光沢感覚値）＝[正反射(限幅)光沢度／３０]2×（写像性値／６０）
Further, when the evaluation object is a recorded image ink-jet recorded with a dye ink or a silver salt photograph, as described above, the calculated value obtained by the following formula is preferably indexed as a gloss sensation value.
(Glossy sensation value) = [regular reflection (limited width) glossiness / 30] 2 × (image clarity value / 60)
本発明においては、正反射(限幅)光沢度と、全幅光沢度と、写像性値と、を測定する手段を少なくとも含む装置であって、下記式で得られる算出値を光沢感覚値として指標する光沢感の評価装置を提供できる。
（光沢感覚値）＝[正反射(限幅)光沢度／基準光沢度]2×（写像性値／基準写像性値）
In the present invention, it is an apparatus including at least means for measuring regular reflection (limited width) glossiness, full-width glossiness, and image clarity value, and a calculated value obtained by the following formula is used as an index as a gloss sensation value. An apparatus for evaluating glossiness can be provided.
(Glossy sensation value) = [regular reflection (limited width) glossiness / reference glossiness] 2 × (image clarity value / standard image clarity value)
また、本発明においては、前述した評価方法又は評価装置を使用する、光沢感物質を識別するシステムを提供できる。 Moreover, in this invention, the system which identifies a glossy substance using the evaluation method or evaluation apparatus mentioned above can be provided.
実施例
以下に、本発明の実施例及び試験例を挙げて、本発明をより具体的に説明するが、本発明は、かかる実施例により何等制限されるものではない。
Examples Hereinafter, the present invention will be described more specifically with reference to examples and test examples of the present invention. However, the present invention is not limited to the examples.
（評価対象物の準備）
本発明に係る実施例の評価方法を適用するための評価対象物として、表１に示す出力物を準備した。
(Preparation of evaluation object)
Output objects shown in Table 1 were prepared as evaluation objects for applying the evaluation methods of the examples according to the present invention.
各写真のデータは、フォトショップ上で、黒ベタのＪＰＥＧ画像を近郊のデジタル・フォト・スタジオでプリントした出力物を用いた。 The data of each photograph was an output product obtained by printing a black solid JPEG image in a nearby digital photo studio on Photoshop.
各プリンタのデータは、フォトショップ上で、黒ベタのＪＰＥＧ画像を各プリンタで最高画質・写真用紙＜光沢＞で写真用紙＜光沢＞（セイコーエプソン株式会社製）にプリント（図３Ａ参照）した出力物を用いた。 The data for each printer is the output of a black solid JPEG image printed on Photoshop (see Fig. 3A) on each paper with the highest image quality and photo paper <gloss> on photo paper <gloss> (manufactured by Seiko Epson Corporation). Things were used.
表１中の出力物の詳細は、次の通りである。
Ｇ８００ ：Ｇ８００（プリンタ）で染料インクにより写真用紙＜光沢＞に
インクジェットプリントした出力物
Ｇ９００ ：Ｇ９００（プリンタ）で顔料インクにより写真用紙＜光沢＞に
インクジェットプリントした出力物
４０００ＰＸ ：４０００ＰＸ（プリンタ）で写真用紙＜光沢＞にプリントした出力物
銀塩写真１ ：ＫＯＤＡＫ ＲＯＹＡＬ ＰＡＰＥＲにプリントした出力物
銀塩写真２ ：ＦＵＪＩＦＩＬＭ ＥＶＥＲ ＢＥＡＵＴＹ ＰＡＰＥＲ ＦＯＲ
ＬＡＳＥＲにプリントした出力物
銀塩写真３ ：ＫＯＮＩＣＡ ＤＥＧＩＴＡＬ ＬＯＮＧ ＬＩＦＥ １００に
プリントした出力物
Details of the output products in Table 1 are as follows.
G800: Photo paper <glossy> using dye ink with G800 (printer)
Inkjet-printed output G900: Photo paper <glossy> with pigment ink by G900 (printer)
Inkjet printed output 4000PX: Output printed on photo paper <gloss> with 4000PX (printer) Silver salt photo 1: Output printed on KODAK ROYAL PAPER Silver salt photo 2: FUJIFILM EVER BEAUTY PAPER FOR
Output printed on LASER Silver salt photo 3: KONICA DEGITAL LONG LIFE 100
Printed output
（出力物の評価）
表１に示す出力物について以下の方法に従い、光沢度、写像性値、６０度全幅光沢度及び光沢感覚値を測定・評価した。表１には、各出力物に対する基準となる鏡面標準板の値を示してある。
(Evaluation of output)
The output shown in Table 1 was measured and evaluated for glossiness, image clarity value, 60 ° full width glossiness, and gloss sensation value according to the following method. Table 1 shows the value of the specular standard plate serving as a reference for each output product.
光沢度〔正反射(限幅)光沢度〕:
村上色彩技術研究所の自動変角光度計（ＧＰ−２００型）を使用し、入射角４５度（スリット幅：入射側φ1ｍｍ、反射側φ１．５ｍｍ）、感度５００、煽り角度０度で、反射角４２度〜４８度の反射光強度を測定した。このとき、光源に１２Ｖ５０Ｗのハロゲンランプ、フィルターにＮＤ−１０を用い、標準板の光沢度が４２．５になるように、光源に印加する電圧を調整した。出力物の光沢度は、この測定条件下で測定される反射光強度各値のうちの最高値を言うものとする。なお、再現誤差は±２．０以下であった。
Glossiness (regular reflection (limited width) glossiness):
Using an automatic goniophotometer (GP-200 type) from Murakami Color Research Laboratory, with an incident angle of 45 degrees (slit width: incident side φ1 mm, reflection side φ1.5 mm), sensitivity 500, ringing
写像性値：
評価は、スガ試験機製の写像性測定器ＩＣＭ−１Ｔを用いて、標準鏡面板でゲイン調整をし、各出力物を２回測定した。入射光と反射光は共に４５度に設定した。
Image clarity value:
The evaluation was performed by adjusting the gain with a standard mirror surface plate using a image clarity measuring device ICM-1T manufactured by Suga Test Instruments, and measuring each output twice. Both incident light and reflected light were set to 45 degrees.
また、測定器の入射光と反射光の進行方向に対して、評価対象物が記録物の場合には、インクジェットヘッドの走査方向に直行するように、記録物をサンプルホルダーにセットした（図３Ｂ参照）。 Further, when the object to be evaluated is a recorded material with respect to the traveling direction of the incident light and the reflected light of the measuring instrument, the recorded material is set in the sample holder so as to go straight in the scanning direction of the inkjet head (FIG. 3B). reference).
図２に示す装置により受光量の強度を測定し、以下の式に基づいて写像性値を計算した。
（写像性値(％)）＝（受光量の最大値−受光量の最小値）／（受光量の最大値＋受光量の最小値）×１００
The intensity of the amount of received light was measured by the apparatus shown in FIG. 2, and the image clarity value was calculated based on the following equation.
(Image clarity value (%)) = (maximum received light amount−minimum received light amount) / (maximum received light amount + minimum received light amount) × 100
光沢感覚値：
前記の光沢度及び写像性値の評価結果を用いて、下記式で得られる算出値を求めた。尚、基準光沢度は、６０度全副光沢度の２分の１とした。また、基準写像性値は、６０とした。
（光沢感覚値）＝[正反射(限幅)光沢度／基準光沢度]2×（写像性値／基準写像性値）
６０度全幅光沢度：
日本電工社製の光沢度計ＰＧ１Ｍを用いて測定した。
Glossiness value:
Using the evaluation results of the glossiness and image clarity value, a calculated value obtained by the following formula was obtained. The reference glossiness was set to one half of the total secondary glossiness of 60 degrees. The reference image clarity value was 60.
(Glossy sensation value) = [regular reflection (limited width) glossiness / reference glossiness] 2 × (image clarity value / standard image clarity value)
60 degree full width gloss:
Measurement was performed using a gloss meter PG1M manufactured by NIPPON Denko.
また、出力物の光沢性の目視判定を行った。この判定試験者は、無作為に抽出した２０代から４０代の５０名である。また、判定基準は、次の通りである。 Moreover, the glossiness of the output product was visually determined. This judgment tester is 50 people in their 20s to 40s randomly selected. The determination criteria are as follows.
評価環境は、サンプル（出力物）から２ｍ離れた天井に蛍光灯（National社製ＦＬＲ４０Ｓ−Ｗ/Ｍ−Ｘ）が設置されている室内であり、水平な机上にサンプルを置いた状態である。 The evaluation environment is a room where a fluorescent lamp (National FLR40S-W / MX) is installed on the ceiling 2 m away from the sample (output), and the sample is placed on a horizontal desk.
光沢性の目視判定基準：
Ｓ：完全な鏡面と認識できるレベルの光沢性を感じる。
ＡＡ：光沢性を充分に感じる。
Ａ：光沢性が若干、不充分に感じる。
Ｂ：光沢性が不充分に感じる。
Ｃ：光沢性がないことがはっきりとわかる。
以上の評価結果を表１に示す。
Visual criteria for glossiness:
S: I feel a gloss level that can be recognized as a perfect mirror surface.
AA: Glossiness is sufficiently felt.
A: Glossiness is slightly insufficient.
B: Glossiness feels insufficient.
C: It can be clearly seen that there is no gloss.
The above evaluation results are shown in Table 1.
表１の結果から明らかなように、本発明の評価方法では、光沢感覚値として人による光沢性の目視判定結果との間に相関関係（略一致）が得られ、人の目視での光沢の感覚を精度高く数値化できることが判る。これに対し、光沢度等に基づく評価方法では、人による光沢性の目視判定結果とは相関関係が必ずしも得られていない。 As is clear from the results in Table 1, in the evaluation method of the present invention, a correlation (substantially coincident) is obtained between the glossiness sense value and the result of visual determination of glossiness by a person, and the glossiness of the person visually observed. It can be seen that the sense can be quantified with high accuracy. On the other hand, in the evaluation method based on the glossiness or the like, a correlation is not necessarily obtained with the visual determination result of glossiness by a person.
本発明は、人の目視での光沢の感覚を精度高く数値化する評価方法、人の目視による光沢感覚についての高精度な数値化を容易に達成できる評価装置、及び人の目視により高い光沢感と評価される物質を容易に識別することのできる光沢物質の識別システムとして、産業上の利用可能性を有する。 The present invention provides an evaluation method for accurately quantifying the sense of gloss by human eyes, an evaluation device that can easily achieve high-precision quantification of the gloss sensation by human vision, and a high gloss feeling by human vision. The present invention has industrial applicability as a glossy substance identification system that can easily identify substances that are evaluated as follows.
１…光源、２…評価対象物、３…入射光、４…反射角、５…光学くし、６…受光器、７…感度調整器、８…記録計 DESCRIPTION OF SYMBOLS 1 ... Light source, 2 ... Evaluation object, 3 ... Incident light, 4 ... Reflection angle, 5 ... Optical comb, 6 ... Light receiver, 7 ... Sensitivity adjuster, 8 ... Recorder
Claims (10)
（光沢感覚値）＝[正反射(限幅)光沢度／基準光沢度]2×（写像性値／基準写像性値） A glossiness evaluation method in which a calculated value obtained by the following formula is used as a glossiness value.
(Glossy sensation value) = [regular reflection (limited width) glossiness / reference glossiness] 2 × (image clarity value / standard image clarity value)
（写像性値(％)）＝（受光量の最大値−受光量の最小値）／（受光量の最大値＋受光量の最小値）×１００ The image clarity value is obtained when a 6V, 0.35A slit lamp is used as a light source, no filter is used, and the evaluation object is irradiated with incident light at an incident angle of 45 degrees at a turning angle of 0 degrees. The evaluation according to claim 1 or 2, which is a value obtained by introducing the fluctuation of the amount of light received when passing through an optical comb having a width of 2 mm where the light emitted at a reflection angle of 45 degrees moves to the following formula. Method.
(Image clarity value (%)) = (maximum received light amount−minimum received light amount) / (maximum received light amount + minimum received light amount) × 100
（光沢感覚値）＝[正反射(限幅)光沢度／６０]2×（写像性値／６０） A glossy evaluation method in which a calculated value obtained by the following formula is used as a glossy sensation value when an evaluation object is a recorded image that is inkjet-recorded with pigment ink.
(Glossy sensation value) = [regular reflection (limited width) glossiness / 60] 2 × (image clarity value / 60)
（光沢感覚値）＝[正反射(限幅)光沢度／３０]2×（写像性値／６０） A glossiness evaluation method in which a calculated value obtained by the following formula is indexed as a glossiness sense value when the object to be evaluated is a recorded image inkjet-recorded with a dye ink or a silver salt photograph.
(Glossy sensation value) = [regular reflection (limited width) glossiness / 30] 2 × (image clarity value / 60)
（光沢感覚値）＝[正反射(限幅)光沢度／基準光沢度]2×（写像性値／基準写像性値） Evaluation of glossiness that includes at least means for measuring regular reflection (limited width) glossiness, full-width glossiness, and image clarity value, and uses the calculated value obtained by the following formula as a glossiness value. apparatus.
(Glossy sensation value) = [regular reflection (limited width) glossiness / reference glossiness] 2 × (image clarity value / standard image clarity value)
The system which identifies the object which is excellent in glossiness by using the evaluation method in any one of Claims 1-8, or the evaluation apparatus of Claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004087836A JP2005274340A (en) | 2004-03-24 | 2004-03-24 | Method ad device for evaluating feeling of gloss, and system for discriminating material excellent in feeling of gloss |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004087836A JP2005274340A (en) | 2004-03-24 | 2004-03-24 | Method ad device for evaluating feeling of gloss, and system for discriminating material excellent in feeling of gloss |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009060536A1 (en) * | 2007-11-09 | 2009-05-14 | Cosmostechno Corporation | Method for diagnosing paint of automobile |
| US8777345B2 (en) | 2011-04-01 | 2014-07-15 | Seiko Epson Corporation | Bronzing index value calculation method, bronzing index value calculation device, and printing device |
| CN107389620A (en) * | 2017-09-08 | 2017-11-24 | 江苏省农业科学院 | A kind of method of accurate quick measure Cherry Tomato Fruit surface gloss |
-
2004
- 2004-03-24 JP JP2004087836A patent/JP2005274340A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009060536A1 (en) * | 2007-11-09 | 2009-05-14 | Cosmostechno Corporation | Method for diagnosing paint of automobile |
| US8777345B2 (en) | 2011-04-01 | 2014-07-15 | Seiko Epson Corporation | Bronzing index value calculation method, bronzing index value calculation device, and printing device |
| CN107389620A (en) * | 2017-09-08 | 2017-11-24 | 江苏省农业科学院 | A kind of method of accurate quick measure Cherry Tomato Fruit surface gloss |
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