CN110383022A - Material for measurement of pressure, material for measurement of pressure group, piezometry method and piezometry liquid group - Google Patents

Material for measurement of pressure, material for measurement of pressure group, piezometry method and piezometry liquid group Download PDF

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Publication number
CN110383022A
CN110383022A CN201880014597.1A CN201880014597A CN110383022A CN 110383022 A CN110383022 A CN 110383022A CN 201880014597 A CN201880014597 A CN 201880014597A CN 110383022 A CN110383022 A CN 110383022A
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China
Prior art keywords
color development
pressure
measurement
developer layer
layer
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CN201880014597.1A
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Chinese (zh)
Inventor
八田政宏
岛田浩一
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Fujifilm Corp
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Fujifilm Corp
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Publication of CN110383022A publication Critical patent/CN110383022A/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Color Printing (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

A kind of material for measurement of pressure and its application, the material for measurement of pressure has supporter, the color development oxidant layer comprising electron donating property dyestuff former and a developer layer for being configured between supporter and color development oxidant layer and include electron acceptor compound, and the diameter for passing through front end be 5mm terminal pressurizeed with the pressure of 50MPa color development when the diameter in color development portion be more than 5mm and 10mm or less.

Description

Material for measurement of pressure, material for measurement of pressure group, piezometry method and pressure are surveyed Fixed liquid group
Technical field
The present invention relates to a kind of material for measurement of pressure, material for measurement of pressure group, piezometry method and piezometries With liquid group.
Background technique
The material for being used in piezometry is expected to the bonding process applied to liquid-crystalline glasses, the solder to printing substrate prints The various uses such as the surface pressure adjustment when attaching operation of pressure adjustment, substrate between brush, roller.As being used in piezometry The example of material, such as the Prescale (trade name having to be provided by FUJIFILM Corporation；Registered trademark) it is generation The piezometry film of table.
In the piezometry film listed, such as pressure is measured in accordance with the following methods.
I.e. when adjusting the pressure between roller, piezometry film is inserted by splenium position to assign pressure between roller Power takes out piezometry film from by splenium position, being capable of visual determination pressure by the color development degree of the piezometry film taken out Uniformity.
In recent years, such as the usage as piezometry film adjusts or confirms screw other than such use (screw) etc. the purposes of the fastening of fixation members has increased trend.Its entirety of the fixation members such as screw plays the work of fastening With.Also, such as bolt (bolt) as fastening component is usually made by metal, based on bolt by splenium position most In the case of by bolt itself hide and can not observe.
In this way, when by fasten influenced and can not be observed by splenium position with component itself when, it is desirable that grasp by splenium position Pressure so that pressure distribution method.
As technology relevant to above situation, such as in Japanese Unexamined Patent Publication 2009-019949 bulletin, proposition have in order to The concentration that can be observed and read with small pressure is obtained, the color development concentration difference Δ D before and after the pressurization under 0.05MPa is 0.02 or more material for measurement of pressure.
Also, it such as is disclosed in Japanese Unexamined Patent Publication 2009-019949 bulletin and colour former is sealed in 2 across being combined with Between a plain washer and the fastening display body of the display unit of the plastochondria of microencapsulation, and records display unit and formed with can be from outer The protrusion that the visual mode in portion is protruded can confirm the content of the fastening of screw by visual observation.
Summary of the invention
The invention technical task to be solved
As above-mentioned, such as when piezometry film to be used in the confirmation of fastening of the fixation members such as screw, in order to The color development degree that piezometry film is confirmed after fastening, needs to unscrew on screw.In the method, on this point of fastening not only It generates and repeats operation, and the confirmation of the tightness of screw that can not have directly been fastened etc..
Also, such as piezometry film provided all the time due to multifunction and High precision according to product and It needs critically to grasp pressure distribution, therefore there is the performance for observantly showing chromophore image mostly.Moreover, provide all the time Such as piezometry film also there is the character for being difficult to generate the infiltration in color development portion mostly, so as in small pressure span It inside also will appreciate that pressure is distributed.Thus, for example such as want by the fastening of screw metal part and when immobilization, be configured at by The piezometry film of splenium position can be hidden because of screw etc., it is difficult to be grasped by visions such as screws by the pressure of splenium position.
It is such as above-mentioned, the display unit energy by fastening display body is recorded in Japanese Unexamined Patent Publication 2009-019949 bulletin The content of the fastening of enough visual confirmation screws, but not about the detailed content of display unit, only rests on that pressure-sensitive can be used is thin The record of film etc..As above-mentioned, in the color development oxidant layer of previous piezometry film, implement that color is impermeable to be designed as being used to Example, such as Japanese Unexamined Patent Publication 2009-019949 bulletin, such as only, setting size is greater than the display unit of bolt, can not also expect not Directly assign the color development in the region in the outside of the bolt of pressure.Therefore, it is recorded in Japanese Unexamined Patent Publication 2009-019949 bulletin Fastening display body in, colour saturation corresponding with degree of pressure or form and aspect can not be obtained, in addition can not show pressure be distributed.
Moreover, also requiring for example in piezometry film by fastening pressure when being fastened with fixation members such as screws Resume save certain period.
The present invention has been made in view of the above-described circumstances.
The embodiments of the present invention project to be solved be to provide one kind can vision capture to can not observe by splenium Material for measurement of pressure, the material for measurement of pressure group, piezometry method of pressure or pressure distribution in the usage mode of position And piezometry liquid group.
For solving the means of technical task
Specific method for solving the above subject includes following manner.
A kind of material for measurement of pressure of 1 > of <, includes supporter；Color development oxidant layer comprising electron donating property dyestuff former； And it is configured between supporter and color development oxidant layer, and include the electron acceptor compound for making electron donating property dyestuff former color development Developer layer,
The terminal that diameter by front end is 5mm pressurizeed with the pressure of 50MPa color development when the diameter in color development portion be super Cross 5mm and 10mm or less.
2 > of < material for measurement of pressure according to 1 > of <, wherein the pore volume of developer layer is 1ml/m2~ 10ml/m2。
3 > of < material for measurement of pressure according to 2 > of < 1 > or <, wherein color development oxidant layer includes to include supplied for electronic Property dyestuff former microcapsules, the contents of microcapsules is 40 relative to the total solid content of color development oxidant layer and the total of developer layer Quality % or more.
4 > of < material for measurement of pressure according to any one of 1 > of <~<, 3 >, wherein in developer layer, by The content of electro compound is the 10 mass matter of %~50 relative to the total solid content of color development oxidant layer and the total of developer layer Measure %.
5 > of < material for measurement of pressure according to any one of 1 > of <~<, 4 >, wherein electron acceptor compound Average primary particle diameter be 10 μm or less.
6 > of < material for measurement of pressure according to any one of 1 > of <~<, 5 >, wherein developer layer also includes Water-soluble high-molecular compound.
7 > of < material for measurement of pressure according to 6 > of <, wherein the content of water-soluble high-molecular compound is opposite In developer layer total solid content be 20 mass % or more.
8 > of < material for measurement of pressure according to any one of 1 > of <~<, 7 >, wherein color development oxidant layer also includes The contact angle on the surface relative to developer layer is 30 ° of oil components below.
A kind of material for measurement of pressure group of 9 > of <, it includes: chromonic materials have and include electron donating property dyestuff former Color development oxidant layer；And colour development material, there is the color developing agent comprising making the electron acceptor compound of electron donating property dyestuff former color development Layer,
The terminal that diameter by front end is 5mm pressurizeed with the pressure of 50MPa color development when the diameter in color development portion be super Cross 5mm and 10mm or less.
10 > of < material for measurement of pressure group according to 9 > of <, wherein the pore volume of developer layer is 1ml/m2~ 10ml/m2。
11 > of < material for measurement of pressure group according to 10 > of < 9 > or <, wherein color development oxidant layer includes to include confession The microcapsules of electro dyestuff former, the content of microcapsules is relative to color development oxidant layer and the total solid content of the total of developer layer For 50 mass % or more.
A kind of piezometry method of 12 > of <, it is with the following process: possessed by splenium position respectively to 2 materials A developer layer process that developer layer is formed with liquid assigned comprising electron acceptor compound；To developer layer it Color development oxidant layer above or by another imparting in splenium position is formed with liquid comprising the color development oxidant layer of electron donating property dyestuff former Process；And by the developer layer of splenium position and color development oxidant layer assign pressure to being formed in and make the process of its color development,
By the imparting amount of the color development oxidant layer liquid in splenium position relative to color development oxidant layer liquid and developer layer liquid The ratio of the imparting amount of the total of body be calculated as with quality criteria more than 0.5 and 0.8 hereinafter,
The developer layer of color development and the diameter by front end of color development oxidant layer are that the terminal of 5mm is pressurizeed with the pressure of 50MPa And the diameter in color development portion when color development is more than 5mm and 10mm or less.
A kind of piezometry method of 13 > of < has piezometry material described in any one of 1 > of <~<, 8 > Material for measurement of pressure group described in material or any one of 9 > of <~<, 11 > is configured at by splenium position, and to developer layer and Color development oxidant layer assigns pressure to make the process of its color development.
14 > of < piezometry method according to 13 > of < 12 > or <, wherein by the material of splenium position be metal Or resin.
A kind of 15 > of < piezometry liquid group, the color development oxidant layer liquid comprising electron donating property dyestuff former；And Developer layer liquid comprising making the electron acceptor compound of electron donating property dyestuff former color development, is used in the hair of piezometry The amount of colorant layer liquid relative to the total amount of color development oxidant layer liquid and developer layer liquid ratio with quality criteria It is calculated as more than 0.5 and 0.8 or less.
Invention effect
Embodiment according to the present invention, provide it is a kind of can vision capture to can not observe by the usage mode of splenium position In pressure or the material for measurement of pressure of pressure distribution, material for measurement of pressure group, piezometry method and piezometry use Liquid group.
Specific embodiment
Hereinafter, being surveyed to material for measurement of pressure of the invention and material for measurement of pressure group, piezometry method and pressure It is fixed to be described in detail with liquid group.
In addition, the label of "~" that records in the present specification indicates the numerical value that will be recorded in front of and after "~" respectively as most Small value and maximum value and the range being included.In the numberical range periodically recorded in the present specification, in a certain numerical value The upper limit or lower limit recorded in range can be substituted for the upper limit value or lower limit of the numberical range that other are periodically recorded Value.Also, in the numberical range recorded in the present invention, the upper limit or lower limit recorded in a certain numberical range can be replaced Change value shown in embodiment into.
" process " word in this specification not only includes independent process, can not clearly be distinguished with other processes working as When, this term is also contained in as long as the expectation target that can realize the process.
Also, in the present specification, when mentioning the amount of each ingredient in composition, if there are a variety of phases in the composition When in the substance of each ingredient, as long as no special explanation, then it represents that the total amount of many kinds of substance existing in the composition.
In the present specification, electron donating property dyestuff former is also referred to as " colour former ", and electron donating property dyestuff former will be made The electron acceptor compound of color development is also referred to as " color developing agent ".
< material for measurement of pressure >
Material for measurement of pressure of the invention successively has comprising contaminating electron donating property from supporting side on supporter The developer layer of the electron acceptor compound of material precursor color development, the color development oxidant layer comprising electron donating property dyestuff former.Also, this hair Bright material for measurement of pressure by pressurizeed by terminal that the diameter of front end is 5mm with the pressure of 50MPa color development when color development The diameter in portion is set as more than 5mm and 10mm range below.
Material for measurement of pressure of the invention is by electron donating property dyestuff former (colour former) and preferably interior solvent-laden Microcapsules react that the electron acceptor compound (color developing agent) of its color development is made to be set to single branch with electron donating property dyestuff former The material of so-called monolithic type on support body.
In monolithic type, by material for measurement of pressure individually be clipped in want measurement pressure or pressure distribution by splenium position It pressurizes and is measured.
Be used in piezometry material just had in the past proposition, oneself utilized to extensive, but mostly as when the fitting of glass Pressure distribution between pressure distribution or roller pair etc. bestows pressure being loaded material for measurement of pressure by splenium position or made it through etc. Material is taken out after power, and measures the color development state of the material of taking-up.However, when the fixation members such as screw, if tight Be not provided with the operation temporarily unscrewed after being fixed in preset position, then can not take out material after assigning pressure, thus also without The measurement of method progress color development state.
When carrying out the confirmation of fastening of the fixation members such as screw, in order to confirm pressure after being fastened screw etc. Degree and unscrew screw, terminal operation can not only occurs in this again, but also whether can not directly confirm the screw fastened etc. It fastens well.
In above-mentioned Japanese Unexamined Patent Publication 2009-019949 bulletin, fastening can not be with the naked eye confirmed because of the protrusion of display unit State, but the undisclosed specific method about display unit.If described, if in view of the multifunction and High precision of product, Then the color development oxidant layer in previous such as piezometry film usually implements the impermeable design of color, therefore in Japanese Unexamined Patent Publication In 2009-019949 bulletin in documented invention, it is difficult to accurately grasp and be concealed not observing because of screw etc. Region pressure degree or pressure distribution.
The present invention has been made in view of the above-described circumstances, even if in the metal part production by such as screw etc., and pass through When being hidden from observation because of screw etc. by splenium position of the fastenings such as screw in itself, also can vision capture to fastening when pressure Power or pressure distribution.
Specifically, passing through the straight of front end to material for measurement of pressure (specifically color development oxidant layer and developer layer) When diameter is that the terminal of 5mm makes its color development with the pressurization of the pressure of 50MPa, the diameter in the color development portion of color development is set as more than 5mm and 10mm range below makes its color development.I.e. in pressurized and color development, around being exuded to by the color development of splenium position, color development portion It becomes larger than by the area of splenium position, thus deviating from the region by splenium position, (such as the fastening area based on bolt is outer Circumference) colour saturation corresponding with pressure or form and aspect can be captured.Also, can also by the variation of the colour saturation in color development portion or The variation of form and aspect is distributed to grasp pressure.
In material for measurement of pressure of the invention, pressurization can assign pressure (point by any means with point, line or face Pressure, line pressure or face pressure etc.) Lai Jinhang.Material for measurement of pressure of the invention is particularly suitable for not observing by fastening etc. The degree or pressure distribution of pressure are measured in the usage mode of splenium position.
Material for measurement of pressure by pressurized, electron donating property dyestuff former in color development oxidant layer in developer layer with by Electro compound is reacted and shows coloring.Such as the colour former in the microcapsules comprising including electron donating property dyestuff former In layer, microcapsules are destroyed and include that the content of electron donating property dyestuff former is released, corresponding to the pressure of pressurization, comprising supplying The content of electro dyestuff former is released with amount corresponding with pressure, and thus the reacting dose with electron acceptor compound obtains It adjusts, can get the level with deep or light color development or color.
In material for measurement of pressure of the invention, the diameter by front end is that the terminal of 5mm is pressurizeed with the pressure of 50MPa It is set as the diameter in color development portion when its color development more than 5mm and 10mm or less.This indicate pressurized with the terminal of diameter 5mm and When color development, surrounding is exuded to by the color development of splenium position, color development portion becomes larger in appropriate range relative to by the area of splenium position.
Here, " diameter " in color development portion is to assume when the front end geometry of terminal to be set as to the circle of diameter 5mm, relative to The circle of diameter 5mm, color development portion become larger to become concentric circles with radial infiltration.Therefore, " it is by the diameter of front end The terminal of 5mm with the pressurization of the pressure of 50MPa and the diameter in color development portion when color development is more than 5mm and 10mm or less " indicate color development The size (i.e. area) at position becomes relative to by the size (i.e. area) of splenium position more than 1 times and 4 times or less.That is, when being pressed The shape at position and it is non-circular when, color development portion relative to by the size (i.e. area) of splenium position more than 1 times and 4 times of models below Enclose interior formation.
It, can compared with the widened previous material of area that can not expect color development portion if the diameter in color development portion is more than 5mm It obtains area to be greater than by the color development portion of splenium position, be suitable for measuring when can not be observed as the fixation members such as screw by splenium position Pressure degree or pressure distribution.Deviateing more particularly to capture by region (such as the fastening zone based on bolt of splenium position The peripheral part in domain) in colour saturation corresponding with pressure or form and aspect variation.
Also, it drips etc. to pollute and the diameter in color development portion is set as 10mm hereinafter, reducing exudation hyperchromatism A possibility that measure object.
As the diameter in the color development portion pressurizeed when carrying out color development with above-mentioned pressure, preferably 6mm~10mm.Moreover, color development portion Diameter is from the viewpoint of the visibility in color development portion, more preferable 7.5mm~10mm, and the visibility from color development portion is high and does not damage outer From the viewpoint of sight, more preferable 7.5mm~9.0mm.
The diameter in color development portion is by using the dedicated pressurizer of Prescale (FPLH, FUJIFILM Corporation System), and the terminal that the diameter of the front end with round and front end is 5mm is contacted with material for measurement of pressure and with 50MPa The pressure pressurization color development portion that carrys out color development diameter be measured with counter (scaler) and the value that obtains.
With the pressurization of above-mentioned pressure, adjusting for the diameter in color development portion when color development can be by the voidage of developer layer, aobvious The content or partial size of color developing agent in colorant layer, the content of the microcapsules in color development oxidant layer or oil component, the water in developer layer The contact angle of oil component on the surface of developer layer in the presence or absence of solubleness high molecular compound or content, color development oxidant layer etc. comes It carries out.
Then, color development oxidant layer, developer layer and the supporter of material for measurement of pressure of the invention are described in detail.
Color development oxidant layer-
Material for measurement of pressure of the invention has color development oxidant layer on the developer layer being formed on supporter.
Color development oxidant layer at least contains electron donating property dyestuff former, as needed, can also further include other compositions.
The microcapsules of electron donating property dyestuff former contained in color development oxidant layer preferably to include electron donating property dyestuff former Form by comprising.
Electron donating property dyestuff former is included in microcapsules, the electron donating property thus accordingly released from microcapsules with pressure Dyestuff former measures adjusting, can show the hair as caused by the variation of the reacting dose with electron acceptor compound well The variation of colour saturation or the color development distribution in color portion.
Microcapsules include the electron donating property dyestuff former as chromophore component, preferably include solvent, as needed, Ke Yijin One step includes secondary solvent and additive etc..
Type and the various conditions such as capsule diameter of the equal wall thickness δ of the number of microcapsules dependent on capsule wall material, from can be with small Pressure (the such as less than pressure of 0.05MPa) destroy from the viewpoint of, preferably 0.05 μm~1.0 μm, more preferable 0.10 μm~ 0.80μm。
The wall thickness of microcapsules refers to form the thickness (μm) of the resin film of the encapsulated particles of microcapsules (so-called capsule wall), The equal wall thickness of number, which refers to, asks the thickness (μm) of the capsule wall of each of 5 microcapsules by scanning electron microscope (SEM) Out and carry out average average value.Carry out shape specifically, microcapsules liquid is applied on any supporter and is dried first At coated film.The cross-sectional slice for making coated film obtained observes its section using SEM, after selecting any 5 microcapsules, The section of selected each microcapsules is observed to find out the thickness of capsule wall and calculate average value.
Preferably 1.0 μm~50.0 μm of the average primary particle diameter of the partial size of microcapsules, more preferable 5.0 μm~30.0 μm.
The average primary particle diameter of microcapsules is to be dissipated to the color development oxidant layer liquid of color development oxidant layer formation by laser diffraction The value that the method for penetrating determines, such as surveyed using particle size distribution device (Microtrac HRA, Nikkiso Co., Ltd. system) It is fixed.
Color development oxidant layer can make the content of the microcapsules in the color development oxidant layer after drying become 3.0g/m2~100.0g/m2's The mode of range assigns (such as coating) color development oxidant layer liquid, and makes it dry to be formed.
As the content in the color development oxidant layer of microcapsules, preferably 5.0g/m2~50.0g/m2, more preferable 10.0g/m2~ 40.0g/m2。
Also, when the color development oxidant layer for being coated with the formation of color development oxidant layer forms color development oxidant layer with liquid, coating can lead to Well known rubbing method is crossed to carry out, it is identical as rubbing method in aftermentioned developer layer liquid is able to use.
As the content (being coating weight when based on coating) of microcapsules, preferably with respect to the total of color development oxidant layer and developer layer The total solid content quality of meter is 40 mass % or more.The content of microcapsules is 40 mass % indicated above when microcapsules include oil When ingredient, the oil mass in color development oxidant layer is more.Increased by oil mass, is easy to generate infiltration in color development portion when being endowed pressure, hold Easily expand the color development area of color development more.
As the content of microcapsules, more preferably relative to color development oxidant layer and the total solid content quality of the total of developer layer For 40 mass of mass %~80 %, the further preferred 50 mass mass of %~75 %.If the content of microcapsules be 80 mass % with Under, then it is advantageous in terms of color development ability.
(electron donating property dyestuff former)
Color development oxidant layer includes at least one kind of of electron donating property dyestuff former, is preferably included in electron donating property dyestuff former micro- Include in capsule.
Electron donating property dyestuff former is able to use in the pressure-sensitive supplied for electronic well known on the way for copying paper or electrothermal sensitive recording paper Property dyestuff former.As electron donating property dyestuff former, such as it is able to use triphenyl methane phthalide analog compound, Material of Fluoran chemical combination Object, phenothiazine compound, indyl phthalide analog compound, colourless golden aminated compounds, rhodamine lactam analog compound, three Phenylmethane class compound, diphenylmethanes compound, Triazenes compound, spiro-pyrans class compound, compound of fluorene class etc. are each Kind compound.
The record of Japanese Unexamined Patent Publication 5-257272 bulletin can be referred to about the detailed content of above compound.
Electron donating property dyestuff former can be used alone or mix two or more come using.
From improving color emissivity in small pressure limit, and show under small pressure high concentration i.e. with wider pressure From the viewpoint of the corresponding concentration variation (concentration gradient) of power range, preferably before the electron donating property dyestuff of molar absorption coefficient ε high Body.The molar absorption coefficient ε of electron donating property dyestuff former is preferably 10000mol-1·cm-1L or more, more preferably 15000mol-1·cm-1L or more, further preferably 25000mol-1·cm-1L or more.
As the preference of the electron donating property dyestuff former of molar absorption coefficient ε within the above range, 3- (4- bis- can be enumerated Ethyl amido -2- ethoxyphenyl) -3- (1- Ethyl-2-Methyl indol-3-yl) -4- azepine phthalide (ε=61000), 3- (4- bis- Ethyl amido -2- ethoxyphenyl) -3- (1- n-octyl -2 methyl indole -3- base) phthalide (ε=40000), the 3- [bis- (1- of 2,2- Ethyl-2-Methyl indol-3-yl) ethylene] -3- (4- diethyl aminocarbonyl phenyl)-phthalide (ε=40000), 9- [ethyl (3- methyl Butyl) amino] loop coil [12H- benzo [a] xanthene -12,1 ' (3 ' H) isobenzofuran] -3 ' -one (ε=34000), 2- aniline - 6- dibutyl amido -3- methyl fluoran (ε=22000), 3- butylamino -6- methyl -7- anilino fluorane (also referred to as ODB2；ε =50000), 6- diethyl amido -3- methyl -2- (2,6- xylidine base)-fluorane (ε=19000), 2- (2- chloroaniline Base) -6- dibutyl amido fluorane (ε=21000), bis- (4- dimethyl amido the phenyl) -6- dimethyl amido phthalein lactones of 3,3- (CVL: also referred to as crystal violet lactone；ε=16000), 2- aniline -6- diethyl amido -3- methyl fluoran (ε=16000) etc..
Or it will be comprising rubbing when the electron donating property dyestuff former of a kind of molar absorption coefficient ε within the above range is used alone When your the electron donating property dyestuff former of absorptivity ε within the above range is mixed with two or more, about in electron donating property dyestuff Shared molar absorption coefficient ε is 10000mol in the total amount of precursor-1·cm-1The electron donating property dyestuff former of L or more Ratio changes (concentration ladder from improving color emissivity with small pressure limit and showing the concentration opposite with wider pressure limit Degree) from the viewpoint of, the preferred range of 10 mass of mass %~100 %, the range of the more preferable 20 mass mass of %~100 %, The range of the further preferred 30 mass mass of %~100 %.
When using electron donating property dyestuff former of more than two kinds, preferably it is respectively using molar absorption coefficient ε simultaneously 10000mol-1·cm-1The electron donating property dyestuff former of more than two kinds of L or more.
Molar absorption coefficient ε can according to absorbance when electron donating property dyestuff is dissolved in 95% acetic acid aqueous solution come It calculates.Specifically, adjusting concentration so that absorbance becomes 95% acetic acid aqueous solution of 1.0 electron donating property dyestuffs below In, the length of measurement unit is set as Acm, the concentration of electron donating property dyestuff is set as Bmol/L, and absorbance is set as C When, it can be calculated by following formula.
Molar absorption coefficient ε=C/ (A × B)
From the viewpoint of improving the color emissivity in small pressure limit, in the color development oxidant layer of electron donating property dyestuff former Content (such as coating weight) 0.1g/m is preferably calculated as with the quality after drying2~5g/m2, more preferable 0.1g/m2~4g/m2, into The preferred 0.2g/m of one step2~3g/m2。
(oil component)
Color development oxidant layer preferably further includes that the contact angle on the surface relative to developer layer is 30 ° of oil components below. Also, oil component is preferably included in microcapsules and includes by color development oxidant layer.
If oil component relative to the surface of developer layer contact angle be 30 ° hereinafter, if from color development oxidant layer supply oil at Partial volume is easily spread in the moistened surface of developer layer.Therefore, it is easy to generate infiltration in color development portion when being endowed pressure, is easy to make The color development area of color development more expands.
It is more low the more preferred from reason same as described above as the contact angle on the surface relative to developer layer, more It is preferred that 25 ° or less.Preferably 5 ° or more of the lower limit value of contact angle.
The contact angle on the surface relative to developer layer is in the colour developing being formed in polyethylene terephthalate thin film Drip the oil component of 1 μ L on the surface of oxidant layer, and was passing through dynamic contact angle measurement device (FIBRO by 0.1 second time point DAT 1100, FIBRO Pharmaceutical.Co., Ltd system) value that determines.
As oil component, solvent can be enumerated.
As solvent, it is able to use the well known solvent used in pressure-sensitive carbon paper purposes, such as diisopropyl can be enumerated The diaryl alkanes such as the alkyl naphthalene compounds of base naphthalene etc., 1- phenyl -1- xylyl ethane, 1- phenyl -1- ethyl vinylbenzene The alkyl biphenyls class such as class compound, isopropyl biphenyl, diisopropyl biphenyl compound, triarylmethane compound compound, alkyl benzene Compound, benzyl naphthalene compounds, diaryl stretch the aromatic hydrocarbons such as alkyls compound, aryl indane class compound；Adjacent benzene two The aliphatic hydrocarbons such as formic acid dibutyl ester, isoparaffin, soybean oil, corn oil, cottonseed oil, colza oil, olive oil, coconut oil, castor-oil plant Natural goods high boiling fractions such as natural animal-plants oil such as oil, fish oil etc., mineral oil etc..
Oil component can individually include a kind, can also mix two or more and include.
When being included in oil component in microcapsules, as the oil component (preferably solvent) and power supply for being included in microcapsules The mass ratio (oil component: precursor) of sub- property dyestuff former, from the viewpoint of color emissivity, the preferred range of 98:2~30:70, more It is preferred that the range of 97:3~40:60, the range of further preferred 95:5~50:50.
(secondary solvent)
As needed, secondary solvent can be included in microcapsules and include by color development oxidant layer.
As secondary solvent, can enumerate boiling point is 50 DEG C of solvents below, such as includes the ketones chemical combination such as methyl ethyl ketone Alcohol compounds such as the ester type compounds such as object, acetic, isopropanol etc..
(other compositions)
In color development oxidant layer other than electron donating property dyestuff former, oil component and secondary solvent, it can also wrap as needed Containing additive.As additive, can enumerate water soluble polymer adhesive, hydrophobic polymer adhesive, surfactant, Inorganic particulate (such as silicon dioxide granule), fluorescent whitening agent, defoaming agent, bleeding agent, ultraviolet absorbing agent, Photostabilised dose, Antioxidant, wax, suppression smelly dose and preservative etc..
Above-mentioned additive can be included in the microcapsules for including electron donating property dyestuff former.
As surfactant, such as sodium alkyl benzene sulfonate (such as the DKS as anionic surfactant can be enumerated Co.Ltd. NEOGEN T etc.) and as nonionic surfactants polyoxyalkylene lauryl ether (such as DKS Co.Ltd. NOIGEN LP70 etc.) etc..
As silicon dioxide granule, such as fumed silica, colloidal silicon dioxide can be enumerated etc..As the city listed Sell product, for example, be able to use Nissan Chemical Industries, LTD. SNOWTEX series (such as SNOWTEX (note Volume trade mark) 30) etc..
About the production methods of microcapsules, there is no particular limitation, is able to use known method, such as can join Examine the method recorded in the paragraph 0036~0044 of Japanese Unexamined Patent Publication 2009-019949 bulletin.
As the thickness of color development oxidant layer, there is no particular limitation, can be selected according to purpose etc..
The thickness of color development oxidant layer (is the thickness for eliminating the microcapsules exposed from layer surface when microcapsules diameter is greater than thickness Degree) preferably 5 μm~50 μm, more preferable 10 μm~40 μm.
Developer layer-
Material for measurement of pressure of the invention has colour developing on supporter (i.e. between supporter and above-mentioned color development oxidant layer) Oxidant layer.
Developer layer includes at least the electron acceptor compound as color developing agent, preferably comprises water soluble polymer chemical combination Object can also include the other compositions such as adhesive, pigment and additive in addition to water-soluble high-molecular compound as needed.
The preferred pore volume of developer layer in material for measurement of pressure of the invention is 1ml/m2~10ml/m2。
If the pore volume of developer layer is 1ml/m2More than, then the color in color development portion will not excessively expand relative to by splenium position It dissipates (infiltration), it can be relative to the diffusion (infiltration) for being shown color in the appropriate range in splenium position.Also, pass through color developing agent The pore volume of layer is 10ml/m2Hereinafter, showing in appropriate range relative to by the diffusion of the color in the color development portion of splenium position (infiltration).
As the pore volume of developer layer, more preferable 2ml/m2~8ml/m2, further preferred 3ml/m2~6ml/m2。
The pore volume of developer layer is the value found out by following formula.
The PET film for forming developer layer is cut out into 10cm × 10cm and quality measurement (m1).Then, in PET film On developer layer on permeate diethylene glycol, wiping remains on quality measurement (m after the diethylene glycol on surface2).If also, setting For X=m2-m1, then pore volume can be found out by following formula.In addition, the density of diethylene glycol is 1.118.
Pore volume (ml/m2)=100 × X ÷ 1.118
(electron acceptor compound)
Developer layer includes at least one kind of of electron acceptor compound.
As electron acceptor compound, inorganic compound and organic compound can be enumerated.
As the concrete example of inorganic compound, can enumerate such as acid clay, activated clay, attapulgite, zeolite, swelling Soil, clay material of clay etc..
As the concrete example of organic compound, the metal salt, phenol formaldehyde resin, carboxylated terpene of aromatic carboxylic acid can be enumerated The metal salt etc. of alkene phenolic resin.
Wherein, preferred acidic clay, activated clay, zeolite, kaolin, the metal salt of aromatic carboxylic acid, carboxylated terpenes The metal salt of phenolic resin, more preferably acid clay, activated clay, kaolin, aromatic carboxylic acid metal salt.
The preferred concrete example of metal salt as aromatic carboxylic acid can enumerate 3,5- di-t-butyl salicylic acid, 3,5- The tertiary dodecyl water of two-t-octyl salicylic acids, 3,5- bis--tertiary nonyl salicylic acid, 3,5- bis--tertiary dodecyl salicylic acid, 3- methyl -5- Poplar acid, the tertiary dodecyl salicylic acid of 3-, the tertiary dodecyl salicylic acid of 5-, 5- cyclohexyl salicylic acid, 3,5- bis- (bis (alpha, alpha-dimethylbenzyl) bases) Salicylic acid, 3- methyl -5- (α-methylbenzyl) salicylic acid, 3- (bis (alpha, alpha-dimethylbenzyl) base) -5- cresotinic acid, 3- (α, α-two Methylbenzyl) -6- cresotinic acid, 3- (α-methylbenzyl) -5- (bis (alpha, alpha-dimethylbenzyl) base) salicylic acid, 3- (alpha, alpha-dimethyl Benzyl) -6- acetyl salicylic acid, 3- phenyl -5- (bis (alpha, alpha-dimethylbenzyl) base) salicylic acid, carboxy-modified terpene phenol resin, conduct Zinc salt, the nickel salt, aluminium salt, calcium of the salicyclic acid resin of reaction product of bis- (α-methylbenzyl) salicylic acids of 3,5- and benzyl chloride etc. Salt etc..
In developer layer, total solid of the content of electron acceptor compound relative to color development oxidant layer and the total of developer layer Ingredient is preferably 10 mass of mass %~50 %.Content by electron acceptor compound is 10 mass % or more, electron donating property The color emissivity of dyestuff former becomes well, to be suitable for adjusting colour saturation or color development distribution.Also, if electron acceptor compound contains Amount is 50 mass % hereinafter, then more reducing from the voidage of electron acceptor compound, is suitable for the expansion of color development area.
As the content of electron acceptor compound, from reason same as described above, more preferable 10 mass %~40 matter Measure %, the further preferred 15 mass mass of %~35 %.
Content (by being coating weight when coating) in the developer layer of electron acceptor compound is preferably in terms of dry mass For 2g/m2~30g/m2.More preferably 3g/m2~20g/m2, further preferably 5g/m2~15g/m2。
Developer layer can be formed and preparing developer layer formation and being formed a film with developer layer with liquid.Colour developing Oxidant layer for example can be assigned and be made it dry by the methods of being coated with developer layer with liquid on supporter to be formed.
Developer layer can be the dispersion liquid dispersed electron acceptor compound in water etc. with liquid.
It can when electron acceptor compound is inorganic compound about the dispersion liquid for being dispersed with electron acceptor compound It is prepared by the processing for being dispersed in water inorganic compound mechanically.Also, when electron acceptor compound is to organise When closing object, developer layer by the processing that is mechanically dispersed in water organic compound or can be dissolved in organic with liquid It is prepared in solvent.
The detailed content of the preparation method about developer layer liquid, can be with reference in Japanese Unexamined Patent Publication 8-207435 public affairs The method recorded in report.
The above-mentioned dispersion liquid for being dispersed with electron acceptor compound can include electron acceptor chemical combination directly as being used to form The developer layer of the developer layer of object is with liquid (such as coating fluid).
The average primary particle diameter of the partial size of electron acceptor compound is preferably 10 μm or less.If electron acceptor compound is flat Equal primary particle size is 10 μm hereinafter, then oily uptake is few, from the viewpoint of infiltration favorably.
As the average primary particle diameter of electron acceptor compound, more preferable 9 μm hereinafter, further preferred 7 μm or less.
Also, preferably 0.1 μm or more of the lower limit of the average primary particle diameter of electron acceptor compound.
The average primary particle diameter of electron acceptor compound is to the developer layer liquid of developer layer formation by swashing Optical diffraction scattering method go out value, such as using particle size distribution device (Microtrac HRA, Nikkiso Co., Ltd. make) it is measured.
(water-soluble high-molecular compound)
Developer layer preferably also includes water-soluble high-molecular compound.It include water soluble polymer chemical combination by developer layer Object can more reduce the pore volume of developer layer.
As water-soluble high-molecular compound, such as it can enumerate as hydrophilic portion and there is the i.e. poly- second of the resin of hydroxyl Enol system resin is (polyvinyl alcohol (PVA), acetoacetyl modified polyvinyl alcohol, cation-modified polyvinyl alcohol, anion-modified Polyvinyl alcohol, silanol group modification polyvinyl alcohol, polyvinyl acetal etc.), cellulose-based resin (methylcellulose (MC), Ethyl cellulose (EC), hydroxyethyl cellulose (HEC), carboxymethyl cellulose (CMC), hydroxypropyl cellulose (HPC), ethoxy first Base cellulose, hydroxypropyl methyl cellulose etc.), chitin kind, chitosan class, starch, gelatin, the resin (polycyclic with ester bond Oxidative ethane (PEO), polypropylene oxide (PPO), polyethylene glycol (PEG), polyvinylether (PVE) etc.), the resin with carbamyl (polyacrylamide (PAAM), pyrollidone (PVP), polyacrylic acid hydrazides etc.) etc..
Also, as dissociative base, additionally it is possible to enumerate polyacrylate with carbonyl, maleic acid resin, alginate, Gelatin class etc..
Wherein, as water-soluble high-molecular compound, particularly preferred polyvinyl alcohol resin.
As the example of polyvinyl alcohol, can enumerate Japanese Patent Publication 4-052786, Japanese Patent Publication 5-067432, Japanese Patent Publication 7-029479, Japanese Patent No. 2537827, Japanese Patent Publication 7-057553, Japanese Patent No. No. 2502998, Japanese Patent No. 3053231, Japanese Unexamined Patent Application 63-176173, Japanese Patent No. 2604367, Japan Japanese Laid-Open Patent Publication 7-276787, Japanese Unexamined Patent Publication 9-207425, Japanese Unexamined Patent Publication 11-058941, Japanese Unexamined Patent Publication 2000- No. 135858, Japanese Unexamined Patent Publication 2001-205924, Japanese Unexamined Patent Publication 2001-287444, Japanese Unexamined Patent Application No. 62-278080, day This Japanese Laid-Open Patent Publication 9-039373, Japanese Patent No. 2750433, Japanese Unexamined Patent Publication 2000-158801, Japanese Unexamined Patent Publication 2001- No. 213045, Japanese Unexamined Patent Publication 2001-328345, Japanese Unexamined Patent Publication 8-324105, Japanese Unexamined Patent Publication 11-348417 etc. it is each The polyvinyl alcohol recorded in bulletin.
Also, it as the example of the water-soluble resin in addition to polyvinyl alcohol resin, can enumerate in Japanese Unexamined Patent Publication 11- The compound etc. recorded in 0011~0014 section of No. 165461 bulletins.
Water-soluble high-molecular compound can also use two or more other than being used alone a kind simultaneously.
The content of water-soluble high-molecular compound is excellent relative to the total solid content of color development oxidant layer and the total of developer layer It is selected as 10 mass % or more, more preferably 20 mass % or more.If the content of water-soluble high-molecular compound be 10 mass % with On, then have the effect of reducing the pore volume of developer layer, is easy pore volume being adjusted to 10ml/m2Below.
As the content of water-soluble high-molecular compound, consolidate preferably with respect to color development oxidant layer and the total of the total of developer layer Body ingredient is 22 mass of mass %~40 %.
(other compositions)
Developer layer can also contain other compositions other than electron acceptor compound.
As other compositions, adhesive, pigment and fluorescent whitening agent, defoaming agent, bleeding agent, preservative etc. can be enumerated and added Add agent etc..
As adhesive, such as styrene-butadiene copolymer latex, vinyl acetate class latex, acrylate can be enumerated It is latex, polyacrylic acid, maleic anhydride-styrene-copolymer, casein, Arabic gum.
As pigment, such as powdered whiting, various forms (rice-shaped, horn shape, fusiform, IGA (ball top) can be enumerated Shape, spherical, aragonite class column, amorphous etc.) precipitated calcium carbonate, talcum, rutile-type or the titanium dioxide of Detitanium-ore-type etc..
Developer layer can be by making the content of the electron acceptor compound in the developer layer after drying become 0.1g/m2 ~50g/m2The mode of range assign (such as coating) developer layer liquid and make it dry to be formed.
When be coated with developer layer formation developer layer with liquid to form developer layer when, coating can be by known Rubbing method carry out, can using with described formed color development oxidant layer phase with rubbing method.
Supporter-
Material for measurement of pressure of the invention has supporter.
Supporter can be any one of sheet, film-form or plate etc..
As the specific example of supporter, paper, plastic film, synthetic paper etc. can be enumerated.
As the concrete example of paper, glazed printing paper (woodfree paper), (wood containing wood pulp fibre paper can be enumerated Containing paper), ground wood paper (groundwood paper), neutralized paper, acidic paper, recycled writing paper, coated paper, machine apply Film paper, art paper (art paper), wax apply (cast coat) paper, micro- coated sheet, cellophane paper (tracing paper) etc..
As the concrete example of plastic film, the polyester films such as polyethylene terephthalate thin film, triacetic acid can be enumerated The polyenes such as the cellulose derivative films such as cellulose, polypropylene, polyethylene film, polystyrene film etc..
As the concrete example of synthetic paper, can enumerate the progress such as polypropylene or polyethylene terephthalate is biaxial stretch-formed simultaneously It forms the paper (YUPO etc.) of a large amount of Micro-v oids, synthesized using polyethylene, polypropylene, polyethylene terephthalate, polyamide etc. The paper of fiber production, part, the paper of one or two sides that these are layered in paper etc..
Wherein, from improve by pressurization generation color development concentration from the viewpoint of, as supporter preferably plastic film, Synthetic paper, more preferable plastic film.
< material for measurement of pressure group >
Material for measurement of pressure group of the invention includes: chromonic materials, has the color development comprising electron donating property dyestuff former Oxidant layer；And colour development material, there is the developer layer comprising making the electron acceptor compound of electron donating property dyestuff former color development,
Diameter by front end is the diameter in the color development portion that the terminal of 5mm is pressurizeed with the pressure of 50MPa when making its color development It is set as more than 5mm and 10mm range below.
Material for measurement of pressure group of the invention can also include other in addition to chromonic materials and colour development material as needed Material.
Material for measurement of pressure group of the invention is that will include electron donating property dyestuff former (colour former) and preferably include The microcapsules of solvent are reacted with electron donating property dyestuff former and the electron acceptor compound (color developing agent) of color development is respectively arranged at not The material of so-called 2 sheet type on same substrate.
Chromonic materials can for supporter, be configured on supporter and include the color development oxidant layer of electron donating property dyestuff former Form.
Also, colour development material can be with supporter, be configured on supporter and include to send out electron donating property dyestuff former The form of the developer layer of the electron acceptor compound of color.
The electron donating property dyestuff former of chromonic materials being contained in color development oxidant layer preferably to include electron donating property dyestuff before The form of the microcapsules of body includes.
Microcapsules are included in by electron donating property dyestuff former, adjust the supplied for electronic accordingly released from microcapsules with pressure The amount of property dyestuff former, can show the color in the color development portion as caused by the variation of the reacting dose with electron acceptor compound well The variation of concentration or color development distribution.
In chromonic materials, as in the color development oxidant layer of microcapsules content (based on coating when be coating weight), relative to The total solid content quality of the total of chromonic materials and colour development material preferably 40 mass % or more.The content of microcapsules is 40 matter Amount % or more refers to that the oil mass when microcapsules include oil component, in color development oxidant layer is more.By increasing the oil mass in color development oxidant layer, It is easy to generate infiltration in color development portion when being endowed pressure, is easy more to expand the color development area of color development.
As the content of microcapsules, the total solid content quality of the total relative to chromonic materials and colour development material is more preferable 40 mass of mass %~80 %, the further preferred 50 mass mass of %~75 %.If the content of microcapsules be 80 mass % hereinafter, It is then advantageous from the viewpoint of color emissivity.
The preferred pore volume of the developer layer of colour development material is 1ml/m2~10ml/m2。
If the pore volume of developer layer is 1ml/m2More than, then the color in color development portion will not excessively expand relative to by splenium position It dissipates (infiltration), it can be relative to the diffusion (infiltration) for being shown color in appropriate range by splenium position.Also, pass through color developing agent The pore volume of layer is 10ml/m2Hereinafter, showing in appropriate range relative to by the diffusion of the color in the color development portion of splenium position (infiltration).
As the pore volume of developer layer, more preferable 2ml/m2~6ml/m2, further preferred 3ml/m2~6ml/m2。
The pore volume of developer layer is the value found out by following formula.
Measurement is cut to the quality (m of the colour development material of 10cm × 10cm1).Then, make diethylene glycol infiltration in colour developing material The developer layer of material wipes quality measurement (m after the diethylene glycol for remaining on surface2).If also, X=m2-m1, then can be by following Formula finds out pore volume.In addition, the density of diethylene glycol is 1.118.
Pore volume (ml/m2)=100 × X ÷ 1.118
In addition, than that described above, about the color development oxidant layer of the chromonic materials in material for measurement of pressure group, colour development material The detailed content of developer layer and supporter, preferred mode identical as the situation in the material for measurement of pressure described It is identical.
In material for measurement of pressure group of the invention, the diameter by front end is that the terminal of 5mm is pressurizeed with the pressure of 50MPa And it is set as the diameter in color development portion when its color development more than 5mm and 10mm or less.This is indicated, by the terminal pressurization of diameter 5mm When color development, surrounding is exuded to by the color development of splenium position, color development portion becomes larger in appropriate range relative to by the area of splenium position. This point has such as been illustrated in the material for measurement of pressure described.
As the preferred 6mm~10mm of diameter in color development portion when color development with the pressurization of above-mentioned pressure.Moreover, color development portion is straight Diameter more preferable 7.5mm~10mm from the viewpoint of the visibility in color development portion is not damaged from the visibility for improving color development portion and outer From the viewpoint of sight, more preferable 7.5mm~9.0mm.
The diameter in color development portion is by using the dedicated pressurizer of Prescale (FPLH, FUJIFILM Corporation System), the diameter of the front end with round and front end for the terminal of 5mm and is overlapped in by the colour development material on splenium position Chromonic materials contact, and measured using counter with the pressurization of the pressure of 50MPa and the diameter in the color development portion of color development and the value that obtains.
In 2 sheet types, by the color development in the chromonic materials with color development oxidant layer and the colour development material with developer layer The surface of the developer layer on the surface and colour development material of the color development oxidant layer of material contacts with each other and is overlapped, overlapping chromonic materials and The position for wanting measurement pressure or pressure distribution and pressurization are clamped in the state of colour development material to be measured.
< piezometry method >
Then, each mode of piezometry method of the invention is illustrated.
- the 1 mode-
The piezometry method of 1st mode of the invention is the color development oxidant layer that the use described is used to form color development oxidant layer With liquid and it is used to form the method that the developer layer of developer layer is measured with liquid.
That is the piezometry method of the 1st mode is with the following process:
In the side by splenium position that 2 materials are respectively provided with, assigns the developer layer comprising electron acceptor compound and use Liquid (is also referred to as " developer layer formation process " below come the process for forming developer layer.)；On developer layer or pressed The other side at position, assign comprising electron donating property dyestuff former color development oxidant layer formed with liquid color development oxidant layer process (with Down also referred to as " color development oxidant layer formation process ".)；And pressure is assigned by the developer layer of splenium position and color development oxidant layer to being formed in To make the process of its color development (below also referred to as " color development process ".),
It will be used by the imparting amount of the color development oxidant layer liquid in splenium position relative to color development oxidant layer liquid and developer layer The ratio of the imparting amount of the total of liquid be set as in terms of quality criteria more than 0.5 and 0.8 hereinafter, and color development developer layer and hair The diameter by front end of colorant layer is the diameter in the color development portion that the terminal of 5mm is pressurizeed with the pressure of 50MPa when making its color development It is set as more than 5mm and 10mm range below.
In addition, about " diameter by front end is the hair that the terminal of 5mm is pressurizeed with the pressure of 50MPa when making its color development The diameter in color portion is more than 5mm and 10mm range below " as described.
It, will be by the imparting of the color development oxidant layer liquid in splenium position in the piezometry method of the 1st mode of the invention Amount is set as super in terms of quality criteria relative to the ratio of the imparting amount of the total of color development oxidant layer liquid and developer layer liquid Cross 0.5 and 0.8 range below.
At this point, total of the imparting amount of developer layer liquid relative to color development oxidant layer liquid and developer layer liquid Imparting amount ratio become 0.2 range more than and less than 0.5.
Color development oxidant layer is formed every time and when developer layer, in the total of color development oxidant layer liquid and developer layer liquid In imparting amount, the ratio of the imparting amount of color development oxidant layer liquid is made to be more than the imparting amount of developer layer liquid, thus, it is possible to will Material for measurement of pressure or the diameter by front end of material for measurement of pressure group are that the terminal of 5mm is pressurizeed with the pressure of 50MPa And it is adjusted to the diameter in color development portion when its color development more than 5mm and 10mm range below.
Among the above, the imparting amount of color development oxidant layer liquid is relative to color development oxidant layer liquid and developer layer liquid The ratio of the imparting amount of total is preferably calculated as 0.6~0.8 with quality criteria.
In the piezometry method of the 1st mode of the invention, without preparing such as the material for measurement of pressure that has described or Chromonic materials and colour development material, but by directly assigning color development oxidant layer liquid and colour developing by splenium position in measured object Oxidant layer simply measures the desired pressure by splenium position with liquid.
As by the material of splenium position, preferably metal or resin.It is not limited particularly about the type of metal and resin It is fixed, it is appropriate to select desired material.
In the piezometry method of the 1st mode of the invention, such as in metallic material (such as with the gold of fastened by screw Belong to plate) surface assign (such as coating) developer layer and form developer layer with liquid, the insertion to fastening on a metal plate There is the surface of the washer of bolt to assign (such as coating) color development oxidant layer and forms color development oxidant layer with liquid.Also, in developer layer On load washer in such a way that developer layer is contacted with color development oxidant layer, fastening screw to apply pressure to color development oxidant layer and developer layer Power then color development can measure the degree and pressure distribution of pressure in the color development portion in the outside of bolt in exudation.
Also, such as (such as coating) colour developing is assigned on the surface of metallic material (such as with metal plate of fastened by screw) Oxidant layer forms developer layer with liquid, assigns (such as coating) colour former being formed by developer layer further overlapping Layer is laminated color development oxidant layer with liquid, and fastening screw to apply pressure then color development to color development oxidant layer and developer layer, exudation in The color development portion in the outside of bolt can measure the degree and pressure distribution of pressure.
(developer layer formation process)
In developer layer formation process, assign in the side by splenium position that 2 materials are respectively provided with comprising by electronics The developer layer of property compound forms developer layer with liquid.
2 materials are possessed respectively to be referred in mutually opposite positional relationship by the side of splenium position and is endowed phase With in the component of the side of 2 materials of pressure by splenium position.
As the side by splenium position that 2 materials are respectively provided with, match when in terms of the direction in preferably 2 materials from Be placed in the material of farther position by splenium position.The material of farther position is preferably configured in terms of the direction from Developer layer is formed by splenium position.
Developer layer can be the dispersion liquid for dispersing electron acceptor compound in water etc. with liquid.In developer layer liquid In water-soluble high-molecular compound, adhesive, pigment and fluorescent brightening can also be added other than it can add dispersion liquid Additives such as agent, defoaming agent, bleeding agent, preservative etc..
The dispersion liquid for being dispersed with electron acceptor compound can be by making when electron acceptor compound is inorganic compound It is prepared by processing that inorganic compound is mechanically dispersed in water.Also, developer layer liquid is in electron acceptor compound When for organic compound, by the processing that is dispersed in water organic compound mechanically or it can be dissolved in organic solvent To prepare.
The detailed content of the preparation method of developer layer liquid can refer to be remembered in Japanese Unexamined Patent Publication 8-207435 bulletin The method of load.
Total solid of content of the color developing agent in developer layer liquid relative to color development oxidant layer and the total of developer layer Ingredient is preferably the 10 mass % of mass %~50, more preferably 15 mass of mass %~35 %.
The imparting of developer layer liquid can be carried out by well known rubbing method.
As well known rubbing method, for example, can enumerate used Kohler coater, rod coater, metering bar coater, Curtain coater, gravure coater, extrusion coating machine, mould coating machine, sliding pearl (slide bead) coating machine, knife type coater Deng rubbing method.
The preferred 2g/m of imparting amount of developer layer liquid2~30g/m2, more preferable 3g/m2~20g/m2。
(color development oxidant layer formation process)
In color development oxidant layer formation process, being assigned on developer layer or by the other side of splenium position includes electron donating property The color development oxidant layer of dyestuff former forms color development oxidant layer with liquid.
2 materials are possessed respectively to be referred in mutual opposite positional relationship and is endowed by the other side of splenium position In the component for the other side that developer layer is not formed in 2 materials of uniform pressure by splenium position.
As 2 materials respectively possessed by by splenium position another, in terms of the direction in preferably 2 materials from Be configured at the material of closer proximity by splenium position.The material of closer proximity is preferably configured in terms of the direction from By splenium position formed color development oxidant layer.
Color development oxidant layer for example can assign and make by the methods of being coated with color development oxidant layer with liquid on supporter It is dried to be formed.
Microcapsules contained in color development oxidant layer can be obtained as having described as dispersion liquid.Micro- glue obtained The dispersion liquid of capsule can be directly as the color development oxidant layer liquid for being used to form the color development oxidant layer comprising electron donating property dyestuff former.
Also, color development oxidant layer liquid can further add water-soluble high score in the dispersion liquid of microcapsules obtained It is sub- adhesive (such as buffers, the polyvinyl alcohol such as micropowder, cellulose fibre powder of starch or starch derivatives etc.), hydrophobic Property polymer binder (such as vinyl acetate class, acrylic compounds, styrene-butadiene-copolymer latex etc.), surface-active Agent, inorganic particulate (such as silicon dioxide granule), fluorescent whitening agent, defoaming agent, bleeding agent, ultraviolet absorbing agent and preservative etc. To prepare.
The content of microcapsules is preferably 40 mass % relative to the total solid content of color development oxidant layer and the total of developer layer ~80 mass %, the more preferable 50 mass mass of %~80 %.
The imparting of color development oxidant layer liquid can be carried out by well known rubbing method.It, and can as well known rubbing method The rubbing method for being used in the imparting of the developer layer liquid described is identical.
The preferred 5g/m of imparting amount of color development oxidant layer liquid2~100g/m2, more preferable 10g/m2~50g/m2。
(color development process)
In color development process, make its color development to being formed in by the developer layer of splenium position and color development oxidant layer imparting pressure.
The imparting of pressure can by arbitrary method with point, line or face assign pressure (press, line pressure or face pressure etc.) come It carries out.
Pressure selects in the range of 1.0MPa~100MPa from the viewpoint of easy confirmation visibility and pressure distribution ?.
- the 2 mode-
The piezometry method of 2nd mode of the invention be using material for measurement of pressure or material for measurement of pressure group into Row method for measuring.
The piezometry method of 2nd mode i.e. of the invention has the material for measurement of pressure that will describe or has described Material for measurement of pressure group is configured at by splenium position, and assigns pressure to developer layer and color development oxidant layer to make the work of its color development Sequence.
It, can be by using the piezometry material such as described in the piezometry method of the 2nd mode of the invention Material or chromonic materials and colour development material are being configured material for measurement of pressure or chromonic materials and colour development material and assigned by splenium positions Pressure is measured by the pressure of splenium position.
By the material of splenium position, there is no particular limitation, can be metal or resin.Type about metal and resin does not have It is special to limit, it is appropriate to select desired material.
About material for measurement of pressure or the detailed content of material for measurement of pressure group (chromonic materials and colour development material), such as It has been described that, preferred embodiment is also identical.
The imparting of pressure can by arbitrary method with point, line or face assign pressure (press, line pressure or face pressure etc.) come It carries out.
< piezometry liquid group >
Piezometry of the invention liquid group includes color development oxidant layer liquid and packet containing electron donating property dyestuff former Developer layer liquid containing the electron acceptor compound for making electron donating property dyestuff former color development, would be used for the hair of piezometry Solid component total amount of the solid content of colorant layer liquid relative to color development oxidant layer liquid and developer layer liquid Ratio be set as in terms of quality criteria more than 0.5 and 0.8 or less.
Piezometry liquid component of the invention does not include color development oxidant layer liquid and developer layer liquid, is suitable for The piezometry method of the 1st mode of the invention of narration.
In addition, about electron donating property dyestuff former and electron acceptor compound and color development oxidant layer liquid and developer layer With the detailed content of liquid as described, preferred embodiment is also identical.
Also, about " being used in the amount of the color development oxidant layer liquid of piezometry relative to color development oxidant layer liquid and aobvious The ratio of the total amount of colorant layer liquid " is also as described.
Embodiment
Hereinafter, carrying out more specific description to the present invention by embodiment.Wherein, the present invention is without departing from its purport, Then it is not limited to following embodiment.In addition, then " part " is quality criteria as long as no special explanation.
(embodiment 1)
Color developing agent contains the preparation-of liquid
Activated clay as electron acceptor compound (color developing agent): in SILTON F-242 (MIZUSAWA INDUSTRIAL CHEMICALS, LTD.) 300 parts of 40 5 parts of mass % sodium hydrate aqueous solutions and water are added in 100 parts and with equal Matter device is dispersed, and 10 50 parts of the mass % aqueous solutions (adhesive) and styrene-fourth two of the sodium salt of casein are further added Alkene latex (Smartex SN-307R, NIPPON A&L INC. system, solid content=48 mass %；Adhesive) 30 parts, system The standby developer layer containing electron acceptor compound is with coating fluid (developer layer liquid).
The average primary particle diameter for the electron acceptor compound being scattered in developer layer coating fluid is used into size distribution The result that measurement device (Microtrac HRA, Nikkiso Co., Ltd. system) is measured is 5 μm.
Include the preparation-of the microcapsules liquid of electron donating property dyestuff former
In Hisol SAS-296 (NIPPON OIL CORPORATION liquefaction ingredient (solvent)；1- phenyl -1- dimethylbenzene The mixture of base ethane and 1- phenyl -1- ethyl vinylbenzene) in 70 parts, as electron donating property dyestuff former, dissolve 3- butylamine 9 parts of base -6- methyl -7- anilino fluorane (ODB2), obtains solution A.Then, 1 part of methyl ethyl ketone of second two will be dissolved in 0.4 part of epoxy butane addition product of amine is added in the solution A being stirred and obtains solution B.First will be further dissolved in 2 parts of trimethylolpropane addition product of toluene di-isocyanate(TDI) in 1 part of base ethyl ketone be added in the solution B being stirred and Obtain solution C.Also, dissolved with the solution of 6 parts of polyvinyl alcohol (PVA-205, KURARAY CO., LTD) in 150 parts of water It is middle to add above-mentioned solution C and carried out emulsion dispersion.300 parts of water are added in emulsion after emulsion dispersion, are stirred on one side It mixes and is heated to 70 DEG C on one side, stirring is cooled down after 1 hour.Water is added to adjust concentration, is prepared for solid component concentration 18 The microcapsules liquid (color development oxidant layer liquid) for including electron donating property dyestuff former of quality %.
Also, the average primary particle diameter of microcapsules is used into particle size distribution device (Microtrac HRA, Nikkiso Co., Ltd. system) result that is measured is 8.0 μm.
The production-of material for measurement of pressure
By the polyethylene terephthalate (PET) by the developer layer coating fluid of above-mentioned acquisition at 75 μm of thickness It is 15g/m with solid component coating weight on film2And be coated by metering bar coater, form developer layer.Then, It overlaps on developer layer, the microcapsules liquid of electron donating property dyestuff former will be included with solid component coating weight as 35.0g/m2 And be coated by metering bar coater, form color development oxidant layer.
The pressure that this 2 layers of monolithic type of developer layer and color development oxidant layer is sequentially laminated in PET film is so made Material is used in measurement.
In addition, the coating weight of developer layer and color development oxidant layer is by respectively making the quality of 20cm × 20cm of coating front and back It is measured with ware Libra to be confirmed.
The contact angle-of oil component
The oil component used in the preparation for the microcapsules liquid for including electron donating property dyestuff former (Hisol SAS-296) exists Contact angle on the surface of developer layer is determined as follows.
I.e. to developer layer coating fluid is coated in PET film and make it dry and the surface of developer layer that is formed, 1 μ L oil component is being added dropwise and was passing through dynamic contact angle measurement device (FIBRO DAT 1100, FIBRO by 0.1 second time point Pharmaceutical.Co., Ltd system) it is determined.In other embodiments and comparative example as follows similarly It is determined.
Measure and evaluate 1-
Using above-mentioned material for measurement of pressure, following measurement and evaluation have been carried out.The result of measurement and evaluation is shown in following Table 3.
[1a. pore volume]
Prepare the PET film for being formed with developer layer as described above, the gap of developer layer has been found out by following formula Amount.
The PET film for being formed with developer layer is cut to 10cm × 10cm, determines quality (m1).Then, by diethyl Glycol, which is placed on the surface of developer layer, makes its infiltration, determines quality (m after wiping the diethylene glycol for remaining on surface2).And And calculate X=m2-m1, pore volume has been found out by following formula.In addition, the density of diethylene glycol is 1.118.
Pore volume (ml/m2)=100 × X ÷ 1.118
[diameter in 2a. color development portion]
Using the dedicated pressurizer of Prescale (FPLH, FUJIFILM Corporation system), before with round The diameter of end and front end is that the terminal of 5mm is contacted with the surface of the color development oxidant layer of material for measurement of pressure, will be with the pressure of 50MPa Pressurization and the diameter in the color development portion of color development is determined using counter.
[3a. visibility]
It is loaded in the mode that encirclement is set to around the circular hole (diameter 10mm) of stainless steel panel and is configured to ring The material for measurement of pressure of shape (internal diameter 8mm, outer diameter 26mm), the overlapping mounting outer diameter 16mm on the material for measurement of pressure Washer is made bolt pass through hole in this state and is fastened with the pressure of 50MPa.At this point, on stainless steel panel, with PET film and the mode of web contact have loaded material for measurement of pressure.
After terminal operation, the color development portion of material for measurement of pressure (is passed through into the portion for the material for measurement of pressure that washer oozes out Point) evaluated according to following evaluation criteria.
< evaluation criteria >
A: color development portion from the position for the distance for being positioned beyond 1m also can sufficiently from.
B: color development portion can be from position of the distance 0.3m more than and less than 1m.
C: color development portion can not observe close to less than 0.3m distance.
[distribution of 4a. pressure is approved no really]
Implement terminal operation in the same manner as above-mentioned " 3a. visibility " to make material for measurement of pressure color development, is commented according to following Valence benchmark to color development portion determined pressure distribution approve really it is no.
< evaluation criteria >
Can: when being pressurizeed with the terminal of 5mm diameter with the pressure of 10MPa and 50MPa, it is able to confirm that color development diameter or color development concentration Difference.
Can not: when being pressurizeed with the terminal of 5mm diameter with the pressure of 10MPa and 50MPa, it can not confirm that color development diameter or color development are dense The difference of degree.
[5a. color stability]
Implement terminal operation in the same manner as above-mentioned " 3a. visibility " to make material for measurement of pressure color development, is commented according to following Valence benchmark evaluates the color stability in color development portion.
< evaluation criteria >
A: color development is able to confirm that cleaning in the color development portion of material for measurement of pressure 10 seconds with 25 DEG C of flowing water Resume.
B: if the color development portion of material for measurement of pressure is cleaned 10 seconds with 25 DEG C of flowing water, color development resume are for example because of stream It moves equal and can not confirm.
[dirt of the measurement part of 6a. measuring object]
Implement terminal operation in the same manner as above-mentioned " 3a. visibility " to make material for measurement of pressure color development, is commented according to following Dirt journey of the valence benchmark to the contact portion of stainless steel panel and bolt and material for measurement of pressure as measuring object Degree is evaluated.
<evaluation criteria>
A: in measuring object, the dirt from color development is had no in the contact portion with material for measurement of pressure.
B: in measuring object, few color development is attached in the contact portion with material for measurement of pressure.
C: it in measuring object, can significantly confirm with the contact portion of material for measurement of pressure from color development Dirt.
(embodiment 2~13,17, comparative example 1)
In embodiment 1, change shown in following table 1 and table 2 is increased to color development oxidant layer and developer layer, in addition to this Material for measurement of pressure is made in the same manner as example 1, has carried out measurement and evaluation same as Example 1.Measurement And the result of evaluation is shown in following Table 3.
(embodiment 14)
In embodiment 1, in glass substrate (white glass substrate, AS ONE Corporation system) will with embodiment Developer layer coating fluid (developer layer liquid) prepared by 1 identical mode is with solid component coating weight for 15g/m2And lead to It crosses metering bar coater to be coated, forms developer layer.Later, further on developer layer will with 1 phase of embodiment The microcapsules liquid for including electron donating property dyestuff former prepared by same mode is with solid component coating weight for 35.0g/m2And pass through Metering bar coater is coated and makes it dry to form color development oxidant layer.
As above, in the present embodiment, without using material for measurement of pressure or material for measurement of pressure group (chromonic materials and aobvious Color material), but be directly coated with developer layer coating fluid on the glass substrate and include micro- glue of electron donating property dyestuff former Cyst fluid has set up developer layer and color development oxidant layer.The developer layer and color development oxidant layer being attached on glass substrate are surveyed as pressure It is fixed to be functioned with material.
Measure and evaluate 2-
Following measurement and evaluation have been carried out to the glass substrate for being attached to developer layer and color development oxidant layer.It measures and evaluates As a result it is shown in following Table 3.
[1b. pore volume]
Prepare to have found out developer layer by following formula to be only attached to the glass substrate of developer layer as described above Pore volume.In addition, the thickness for developer layer uses above-mentioned value, pore volume is found out in the same way as described above.
Pore volume (ml/m2)=100 × X ÷ 1.118
[diameter in 2b. color development portion]
In above-mentioned " diameter in 2a. color development portion ", pressure is replaced to be attached to the glass substrate of developer layer and color development oxidant layer Power measurement material is determined in an identical manner in addition to this.
[3b. visibility]
In above-mentioned " 3a. visibility ", pressure is replaced to be attached to the above-mentioned glass substrate of developer layer and color development oxidant layer Measurement material and stainless steel panel are determined in an identical manner in addition to this.
[distribution of 4b. pressure is approved no really]
To by with above-mentioned " 3a. visibility " it is identical in a manner of color development color development portion according to it is above-mentioned " 4a. pressure be distributed really Approve no " identical evaluation criteria determined pressure distribution approve really it is no.
[5b. color stability]
Will by with above-mentioned " 3a. visibility " it is identical in a manner of color development color development portion in color stability according to it is above-mentioned " 5a. color stability " identical evaluation criteria is evaluated.
[dirt of the measurement part of 6b. measure object]
The color development in a manner of identical with above-mentioned " 3a. visibility ", by connecing for glass substrate and color development oxidant layer and developer layer The degree of the dirt of contact portion point is carried out according to evaluation criteria identical with above-mentioned " dirt of the measurement part of 6a. measure object " Evaluation.
(embodiment 15)
The production-of color developing agent piece
By the developer layer prepared in the same manner as example 1 with coating fluid (developer layer liquid) in thickness 75 μm polyethylene terephthalate (PET) on piece with solid component coating weight be 15g/m2And it is applied by metering bar coater Cloth makes it dry to form developer layer, has thus made color developing agent piece (colour development material).
The production-of colour former piece
By the microcapsules liquid for including electron donating property dyestuff former prepared in the same manner as example 1 in another thickness 75 μm of polyethylene terephthalate (PET) on piece is 35.0g/m with solid component coating weight2And by metering bar coater into Row coating, makes it dry to form color development oxidant layer, has thus made colour former piece (chromonic materials).
As above the material for measurement of pressure group being made of color developing agent piece and colour former piece has been made.
In addition, the coating weight of developer layer and color development oxidant layer respectively will coating front and back 20cm × 20cm quality by upper Ware Libra is measured to confirm.
Measure and evaluate 3-
Following measurement and evaluation have been carried out using the material for measurement of pressure group made.The result of measurement and evaluation is shown in Following table 2.
[1c. pore volume]
Using above-mentioned colour development material, the pore volume of developer layer has been found out by following formula.
Determine the quality (m for being cut to the colour development material of 10cm × 10cm1).Then, diethylene glycol is placed on color developing agent After so that its infiltration, wiping is remained on the diethylene glycol on surface on the surface of the developer layer of amount, quality (m is determined2).And And calculate X=m2-m1, pore volume has been found out by following formula.In addition, the density of diethylene glycol is 1.118.
Pore volume (ml/m2)=100 × X ÷ 1.118
[diameter in 2c. color development portion]
Using the dedicated pressurizer of Prescale (FPLH, FUJIFILM Corporation system), before with round Terminal chromonic materials be overlapped in a manner of contacting with each other with color development oxidant layer and developer layer that the diameter of end and front end is 5mm and The PET film face of chromonic materials in colour development material abuts, and the hair of color development is determined with the pressure pressurization of 50MPa and with counter The diameter in color portion.
[3c. visibility]
To surround the mode being set to around the circular hole (diameter 10mm) of stainless steel panel, annular will be shaped to The chromonic materials and colour development material of shape (internal diameter 8mm, outer diameter 26mm) are successively be overlapped from plate side and colour development material and chromonic materials And it loads.Chromonic materials and colour development material are overlapped in such a way that color development oxidant layer and developer layer contact with each other.Also, in color development material The washer of overlapping mounting outer diameter 16mm, is made bolt pass through hole in this state and is fastened with the pressure of 50MPa on material.? After terminal operation, color development portion (parts of the chromonic materials and colour development material that ooze out from washer) are carried out according to following evaluation criteria Evaluation.
< evaluation criteria >
A: color development portion from the position for the distance for being positioned beyond 1m also can fully from.
B: color development portion can be from position of the distance 0.3m more than and less than 1m.
C: color development portion can not observe close to less than 0.3m distance.
[distribution of 4c. pressure is approved no really]
Implement terminal operation in a manner of identical with above-mentioned " 3a. visibility " to make material for measurement of pressure group color development, root It determined pressure distribution to color development portion according to evaluation criteria identical with above-mentioned " distribution of 4a. pressure is approved no really " to approve really It is no.
[5c. color stability]
Implement terminal operation in a manner of identical with above-mentioned " 3a. visibility " to make material for measurement of pressure group color development, incites somebody to action Color stability in color development portion is evaluated according to evaluation criteria identical with above-mentioned " 5a. color stability ".
[dirt of the measurement part of 6c. measure object]
Implement terminal operation in a manner of identical with above-mentioned " 3a. visibility " to make material for measurement of pressure group color development, incites somebody to action The degree of the dirt of the contact portion of the plate and bolt and material for measurement of pressure of stainless steel as measuring object according to Identical evaluation criteria is evaluated with above-mentioned " dirt of the measurement part of 6a. measure object ".
(embodiment 16)
In the production of the color developing agent piece of embodiment 15, the developer layer prepared in the same manner as example 1 is used Coating fluid (developer layer liquid) is changed to following developer layer coating fluids (developer layer liquid), in addition to this, with Mode identical with embodiment 15 makes color developing agent piece and colour former piece, and has carried out measurement identical with embodiment 15 and commented Valence.The result of measurement and evaluation is shown in following table 2.
The preparation of~developer layer coating fluid~
In SILTON F-242 (the MIZUSAWA INDUSTRIAL as electron acceptor compound (color developing agent) CHEMICALS, LTD.) in 100 parts, 40 5 parts of mass % sodium hydrate aqueous solutions of addition, as water-soluble high-molecular compound 300 parts of 810 parts of 20 mass %PVA-105 (KURARAY CO., LTD system) and water are simultaneously dispersed with homogenizer.It is being obtained Dispersion in further add casein sodium salt 10 50 parts of mass % aqueous solutions (adhesive) and styrene-butadiene glue Cream (Smartex SN-307R, NIPPON A&L INC. system, solid content=48 mass %；Adhesive) 30 parts, it is prepared for Developer layer containing electron acceptor compound is with coating fluid (developer layer liquid).
The average primary particle diameter for the electron acceptor compound being scattered in developer layer coating fluid is used into size distribution The result that measurement device (Microtrac HRA, Nikkiso Co., Ltd. system) is measured is 5 μm.
(comparative example 2)
In the Hisol SAS-296 (oil component (solvent) of NIPPON OIL CORPORATION；1- phenyl -1- diformazan The mixture of diphenylphosphino ethane and 1- phenyl -1- ethyl vinylbenzene) in 70 parts, dissolve the 3- butyl as electron donating property dyestuff former 9 parts of amido -6- methyl -7- anilino fluorane (ODB2), as 9 parts of bisphenol-A of electron acceptor compound, obtain solution A.It connects , it is added to the solution A being stirred for 0.4 part of epoxy butane addition product of the ethylenediamine dissolved in 1 part of methyl ethyl ketone In, obtain solution B.Moreover, by the trimethylolpropane addition product for the toluene di-isocyanate(TDI) for being dissolved in 1 part of methyl ethyl ketone 2 parts are added in the solution B being stirred, and obtain solution C.Also, polyvinyl alcohol (PVA- is dissolved in 150 parts of water 205, KURARAY CO., LTD) above-mentioned solution C is added in 6 parts of solution and has carried out emulsion dispersion.Cream after emulsion dispersion Change and add 300 parts of water in liquid, 70 DEG C is heated to while being stirred, stirring is cooled down after 1 hour.Water is added to adjust Concentration is saved, is prepared for including electron donating property dyestuff former and the solid component concentration of electron acceptor compound in microcapsules being 18 The microcapsules liquid of quality %.
It is 50.0g/m with solid component coating weight in PET film by prepared microcapsules liquid2And it is coated with by scraper Machine is coated, and forms microcapsule layer.
As above, the material for measurement of pressure that the microcapsule layer of single layer is attached in PET film has been made.
Using in the material for measurement of pressure obtained among the above, it is determined and comments in the same manner as example 1 Valence.The result of measurement and evaluation is shown in following table 2.In addition, in " 1a. pore volume ", to be formed with the PET film of developer layer It is carried out instead of above-mentioned material for measurement of pressure.
[table 3]
In table 1 and table 2, " microcapsule content ", " colour developing agent content " and " water soluble polymer content " indicate relative to The content of the respective ingredient of the solid component of color development oxidant layer and developer layer.
In table 1 and table 2, color developing agent partial size indicates the average primary particle diameter of color developing agent.
In table 3, color development portion diameter refers to the straight of color development portion when pressurizeing by the terminal of diameter 5mm with the pressure of 50MPa Diameter.
The detailed content of table 1 and the ingredient in table 2 is as follows.
ODB2:3- butylamino -6- methyl -7- anilino fluorane, Yamamoto Chemicals, Inc.
CVL: crystal violet lactone, Hodogaya Chemical Co., Ltd.
Alkene L: alkylbenzene, JXTG Nippon Oil&Energy Corporation
KMC-500: diisopropyl biphenyl, KUREHA CORPORATION
GALLEON EARTH SH: activated clay, MIZUSAWA INDUSTRIAL CHEMICALS, LTD.
GALLEON EARTH NV: activated clay, MIZUSAWA INDUSTRIAL CHEMICALS, LTD.
BPA: bisphenol-A, Idemitsu Kosan Co., Ltd.
Iron plate: SECC, INOUE SHOJI Co., Ltd
Glass substrate: white glass substrate, AS ONE Corporation
As shown in Table 1 to Table 3, in embodiment, the visibility in color development portion is good, can easily be done pressure distribution Confirmation.
In contrast, color development portion is not oozed out in comparative example 1, therefore the pore volume in developer layer becomes excessive, it is seen that Property it is poor, thus pressure distribution confirmation also fail to carry out.Also, colour former and color developing agent is made to be contained in the comparison in same layer In example 2, the exudation in color development portion is excessive, therefore visibility becomes well, but color development concentration becomes to be too high to carry out pressure The confirmation of distribution, and confirm the attachment of the dirt in measure object.
The disclosed entire content of Japanese patent application 2017-046757 is by reference to drawing filed on March 10th, 2017 Enter in this manual.
Close whole documents, patent application and the technical standard recorded in this manual, with it is specific and record respectively The case where each document, patent application and technical standard identical degree, be incorporated by reference into this specification.

Claims (15)

1. a kind of material for measurement of pressure, includes
Supporter；
Color development oxidant layer comprising electron donating property dyestuff former；And
Be configured between the supporter and the color development oxidant layer, and include make the electron donating property dyestuff former color development by electricity The developer layer of sub- property compound,
The terminal that diameter by front end is 5mm pressurizeed with the pressure of 50MPa color development when the diameter in color development portion be more than 5mm And 10mm or less.
2. material for measurement of pressure according to claim 1, wherein
The pore volume of the developer layer is 1ml/m2~10ml/m2。
3. material for measurement of pressure according to claim 1 or 2, wherein
The color development oxidant layer includes the microcapsules for including the electron donating property dyestuff former, and the content of microcapsules is relative to the hair The total solid content of colorant layer and the total of the developer layer is 40 mass % or more.
4. material for measurement of pressure according to any one of claim 1 to 3, wherein
In the developer layer, the content of the electron acceptor compound is relative to the color development oxidant layer and the developer layer The total solid content of total is 10 mass of mass %~50 %.
5. material for measurement of pressure according to any one of claim 1 to 4, wherein
The average primary particle diameter of the electron acceptor compound is 10 μm or less.
6. material for measurement of pressure according to any one of claim 1 to 5, wherein
The developer layer also includes water-soluble high-molecular compound.
7. material for measurement of pressure according to claim 6, wherein
The content of the water-soluble high-molecular compound is 20 mass % or more relative to the total solid content of the developer layer.
8. material for measurement of pressure according to any one of claim 1 to 7, wherein
The color development oxidant layer also include relative to the surface of the developer layer contact angle be 30 ° of oil components below.
9. a kind of material for measurement of pressure group, it includes:
Chromonic materials have the color development oxidant layer comprising electron donating property dyestuff former；And
Colour development material has the developer layer comprising making the electron acceptor compound of the electron donating property dyestuff former color development,
The terminal that diameter by front end is 5mm pressurizeed with the pressure of 50MPa color development when the diameter in color development portion be more than 5mm And 10mm or less.
10. material for measurement of pressure group according to claim 9, wherein
The pore volume of the developer layer is 1ml/m2~10ml/m2。
11. material for measurement of pressure group according to claim 9 or 10, wherein
The color development oxidant layer includes the microcapsules for including the electron donating property dyestuff former, and the content of microcapsules is relative to the hair The total solid content of colorant layer and the total of the developer layer is 40 mass % or more.
12. a kind of piezometry method, with the following process:
To 2 materials, possessed one by splenium position assigns the developer layer liquid comprising electron acceptor compound respectively Body is come the process that forms developer layer；
To on the developer layer or another by splenium position assign include electron donating property dyestuff former color development The process that oxidant layer forms color development oxidant layer with liquid；And
Make the process of its color development to being formed in described by the developer layer of splenium position and the color development oxidant layer and assigning pressure,
The solid component imparting amount by the color development oxidant layer liquid in splenium position is relative to the color development oxidant layer liquid The ratio of the solid component imparting amount of the total of body and developer layer liquid is calculated as with quality criteria more than 0.5 and 0.8 Hereinafter,
The developer layer of color development and the diameter by front end of the color development oxidant layer are the terminal of 5mm with the pressure of 50MPa The diameter in pressurization and color development portion when color development is more than 5mm and 10mm or less.
13. a kind of piezometry method has material for measurement of pressure described in any item of the claim 1 to 8 or power Benefit require any one of 9 to 11 described in material for measurement of pressure group be configured at by splenium position, and to developer layer and colour former Layer assigns pressure to make the process of its color development.
14. piezometry method according to claim 12 or 13, wherein
The material by splenium position is metal or resin.
15. a kind of piezometry liquid group, it includes:
Color development oxidant layer liquid comprising electron donating property dyestuff former；And
Developer layer liquid comprising making the electron acceptor compound of the electron donating property dyestuff former color development,
Be used in the solid content of the color development oxidant layer liquid of piezometry relative to the color development oxidant layer liquid and The ratio of the solid component total amount of developer layer liquid is calculated as with quality criteria more than 0.5 and 0.8 or less.
CN201880014597.1A 2017-03-10 2018-03-05 Material for measurement of pressure, material for measurement of pressure group, piezometry method and piezometry liquid group Pending CN110383022A (en)

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RJ01 Rejection of invention patent application after publication

Application publication date: 20191025

RJ01 Rejection of invention patent application after publication