JP2017088724A - Oily ink composition for marker for tool having marking function and refill for marker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an oily ink composition for tool having marking function and a refill for marker which accommodates the oily ink composition and is used with being attached to the tool.SOLUTION: The oily ink composition for tool having marking function contains an organic solvent, an oil soluble dye, a resin and a modified silicone oil and has viscosity at 20°C in a range of 8 to 25 mPa s, wherein the modified silicone oil is at least one kind selected from polyether modified silicone oil and carboxyl modified silicone oil and the polyether modified silicone oil is polyoxyethylene polyoxypropylene modified silicone oil wherein its polyether group consists of a polyoxyethylene group and a polyoxypropylene group and 50 mass% or more is the polyoxypropylene group or polyoxypropylene modified silicone oil wherein all of its polyether groups are polyoxypropylene groups.SELECTED DRAWING: None

Description

  The present invention relates to a marker oil-based ink composition for a tool having a marking function and a marker refill therefor.

  Conventionally, various tools having a marking function are known. Here, a tool having a marking function means that an operator performs a predetermined work using a work member with such a marking function using the tool, and when the work is completed, the worker In order to confirm by itself that the work has been completed, and to inform a third party, marking the work member that has been completed by the marking function of the tool with an oil-based ink composition. Say.

  As a tool having the marking function as described above, for example, in a screw member tightening operation using a metal or resin screw member such as a screw, a screw, a bolt, or a nut as a working member, a tightening torque of the screw member is previously set. When the set value is reached, a marking means having a marker refill containing an oil ink composition for a marker, for example, a marker having a felt pen structure containing the oil ink composition is placed on the head surface of the screw member. Various screw member tightening tools having a marking function that abuts and gives marking with the oil-based ink composition, such as a torque driver, a torque wrench, an impact wrench, etc. are known (for example, patents) Reference 1-7).

  Therefore, as a tool having a marking function, a screw member tightening tool having the marking function will be described. For such a marker, such a tool is removably attached to the inside or attached to the outside of the tool. This marker refill has a marking chip with a marking body at the tip, and when the tightening torque of the screw member reaches a preset value, the marking body is applied to the screw member head. An ink composition supplied to the marking body is applied to the head of the screw member to give a marking.

  More specifically, the screw member tightening tool having the marking function as described above advances the marker refill toward the screw member when the tightening torque reaches a preset value in the tightening operation of the screw member. The marking body at the tip is brought into contact with the head surface of the screw member, and the oil-based ink composition is applied and adhered thereto to give the marking, and in this way, the marking body is screw member After marking the head, the marker refill is returned to the initial position in the tightening tool and provided with appropriate mechanisms and means for preparing for the next tightening (see, for example, Patent Documents 1 to 7). .

  Conventionally, in a screw member fastening tool having a known marking function, the marking body of the marking tip at the tip of the marker refill typically has a felt pen structure as described above. ing.

  That is, in the conventional screw member tightening tool having a marking function, the oil-based ink composition for the marker is constantly supplied from the ink containing portion to the marking body having the felt pen structure at the tip by capillary action in the marking chip. When the marking body comes into contact with the screw member head, the marking body applies the oil-based ink composition to the screw member head to give the marking.

  Here, the oil-based ink composition is usually quick-drying. Therefore, the conventional screw member tightening tool having the marking function using the felt pen structure marking body as described above for the marking can be used without leaving the marking function. In many cases, the above-mentioned marking function of the tool does not work in the tightening operation of the screw member.

  On the other hand, oil-based ink compositions for marking pens having writing properties on non-absorbing surfaces such as metal surfaces and resin surfaces are already known. For example, an oil-based ink composition for a marking pen in which an oil-soluble dye, a resin, and a modified silicone oil are dissolved in an alcohol solvent or a glycol ether solvent is known (see, for example, Patent Documents 8 and 9).

  These marking pen oil-based ink compositions, when used for a marker having a marking body with a felt pen structure, can draw a smooth line on the non-absorbent surface, but such an oil-based ink for marking pens. Even if the ink composition is used for a writing instrument equipped with a ballpoint pen tip, for example, the viscosity of the oil-based ink composition is too low. Therefore, it cannot be used for marking for the screw member tightening tool as described above.

  In particular, depending on the conventionally known oil-based ink composition for marking, there is a thickness in a narrow part such as a non-absorbable screw member head surface made of metal or resin, and it is three-dimensional, and visibility It is difficult to provide an excellent mer absorption king.

  On the other hand, conventional oil-based ink compositions for ballpoint pens usually cannot be marked on a non-absorbable surface made of metal or resin.

JP 2014-58021 A Japanese Patent Application Laid-Open No. 2014-100756 Japanese Patent Application Laid-Open No. 07-10000771 JP-A-10-128678 JP 2013-119132 A Japanese Patent Application Laid-Open No. 2014-100756 JP 2007-015052 A Japanese Patent Laid-Open No. 11-21492 JP 11-21493 A

  The present invention is a problem in the tool having the conventional marking function as described above, in particular, during the non-use of the marking function, in the marking body of the felt pen structure, the oil-based ink composition is dried and solidified, The problem that the marking function does not work is solved, and furthermore, depending on the conventional marking oil-based ink composition, after the predetermined work by the working member using the tool is finished, the working member that has finished the work is narrowed. If the part, for example, the working member is a screw member made of metal or resin, the narrow surface of the head has a thickness, and it is difficult to provide a three-dimensional marking with excellent visibility. It was made to solve a certain problem.

  That is, according to the present invention, when the marking function is not used, the ink composition is prevented from being supplied to the marking body. However, when the predetermined work by the working member using the tool is completed, for example, by the screw member tightening tool. In the tightening work of the screw member made of metal or resin, when the screw member tightening work is performed and the screw member tightening torque reaches a preset value, the ink composition is supplied to the marking body, The ink composition is applied to the working member, for example, the screw member head surface in the form of dots, and the working member, for example, the screw member head surface has a thickness and is three-dimensional and visible. Excellent marking can be applied, thus preventing the ink from drying and solidifying in the marking body during the non-use of the marking function. Therefore, the above-mentioned working member that may be coated with oil or the like, for example, the head surface of the screw member has a thickness as described above without variations in the repelling and running of the ink composition. An oil-based ink composition for a tool having a marking function capable of providing a three-dimensional, highly visible dot-shaped marking, and a marking body at the tip containing such an oil-based ink composition It is intended to provide a marker refill that is attached to a tool having the marking function.

  Furthermore, an object of the present invention is to provide a method for attaching a marking to a working member that has been completed by attaching the marker refill to a tool having a marking function as described above.

  In the present invention, the above-mentioned work includes, for example, various assembly work in the manufacturing process of home appliances, automobiles, power distribution bases, etc., and tightening of screw members such as screws, screws, bolts, nuts in civil engineering, construction sites, etc. Can list work.

  In the present invention, the working member or screw member has a non-absorbing surface made of metal or resin at least on the surface to which marking is applied. Usually, the working member or screw member itself is the surface thereof. Is made of metal or resin, and therefore the surface to be marked is non-absorbing.

  According to the present invention, an oil-based ink composition for a tool having a marking function, that is, an operator performs a predetermined operation with a working member using the tool for such a marking function, and the operation ends. An oil-based ink composition for providing a marking on the surface of the work member that has been finished, comprising an organic solvent, an oil-soluble dye, a resin, and a modified silicone oil, and having a viscosity at 20 ° C. of 8 The modified silicone oil is at least one selected from polyether-modified silicone oil and carboxyl-modified silicone oil, and the polyether-modified silicone oil has a polyether group having a polyoxyethylene group. It consists of polyoxypropylene groups, of which 50% by weight or more are polyoxypropylene groups There polyoxyethylene polyoxypropylene-modified silicone oil or where oil-based ink composition is its polyether groups are all polyoxypropylene groups polyoxypropylene-modified silicone oil is provided.

  The oil-based ink composition according to the present invention preferably has a viscosity in the range of 10 to 24 mPa · s at 20 ° C., particularly preferably in the range of 15 to 24 mPa · s.

  In the oil-based ink composition according to the present invention, the polyether-modified silicone oil is a polyoxypropylene-modified silicone oil in which all of the polyether groups, that is, 100% by weight of the polyether groups are polyoxypropylene groups. It is preferable that

  Furthermore, the oil-based ink composition according to the present invention preferably contains the modified silicone oil in the range of 0.1 to 4.5% by weight based on the ink composition.

  In the oil-based ink composition according to the present invention, the organic solvent is preferably at least one selected from alkylene glycol and an aliphatic lower alcohol having 1 to 3 carbon atoms, and in particular, the organic solvent. Preferably contains 70% by weight or more of propylene glycol monomethyl ether.

  The resin is preferably at least one selected from ketone resins, phenol resins, xylene resins, styrene-organic acid copolymer resins, and polyacrylate resins.

  Further, according to the present invention, there is provided a marker refill detachably attached to a tool having a marking function, the ink containing tube containing the oil-based ink composition described above, and the marking chip attached to the tip of the ink containing tube. And a marking body provided at the tip of the marking chip and having the marker refill when the predetermined work using the working member by the tool is completed and being biased by the biasing member Is brought into contact with the working member, the marking body is retracted against the biasing member, and the oil-based ink composition is supplied to the marking body, thus the oil-based ink composition is applied to the working member. A marker refill is provided for depositing objects to provide dot-like markings.

  In particular, according to the present invention, as a more preferable aspect of the marker refill, a marker refill that is detachably attached to a screw member fastening tool having a marking function, the ink containing the oil-based ink composition described above. A marking tip attached to the tip of the tube and the ink containing tube, and a marking body held at the tip of the marking tip. When the tightening torque of the screw member reaches a set value, the marker refill has The marking body that is biased by the biasing member is brought into contact with the screw member head, the marking body is moved back against the biasing member, and the oil-based ink composition is supplied to the marking body, Thus, the oil-based ink composition is attached to the surface of the screw member head to provide a dot-shaped marking. Car for a refill is provided.

  In the marker refill according to the present invention, a preferred example of the marking chip has a caulking portion that caulks the opening at the tip thereof, and a part of a ball that is a marking body protrudes from the caulking portion, The ball is housed rotatably in the ball house in the opening, and the ball is pressed and brought into close contact with the caulking portion by an urging member disposed behind the ball.

  In the marker refill according to the present invention, another preferable example of the marking chip includes a cylindrical body and a cone that extends toward the tip direction and has a smaller cross section in the tip direction as the marking body. The cylindrical body has an annular groove, and an annular member made of an elastic material is fitted in the annular groove as an annular valve body. The cone is pressed against the inner wall surface of the opening by an urging member disposed behind the cone, and the annular valve provided on the cylindrical body is connected to the inner wall of the opening. Are pressed and brought into close contact with each other.

  In the present invention, the cone is preferably a cone or a pyramid.

  Further, according to the present invention, the marker refill described above is attached to a tool having a marking function, and the marker refill is attached to the ink containing tube containing the oil-based ink composition and the tip of the ink containing tube. It has a marking chip attached and a marking body provided at the tip of the marking chip, and when a predetermined operation using the working member by the tool is completed, the marker refill has and is urged by the urging member. The marking body is brought into contact with the working member for which the work has been completed, the marking body is retracted against the biasing member, and the oil-based ink composition is supplied to the marking body. The above-mentioned oil-based ink composition is attached to the surface of the work member in the form of dots, and the markings are thick and have excellent visibility. A that marking method, the oil-based ink composition marking method are those described above is provided.

  In particular, according to the present invention, as a preferred embodiment of the marking method, after the screw member tightening operation using the screw member tightening tool having a marking function is finished, the marking is applied to the screw member head surface. A marker refill is attached to the screw member tightening tool, wherein the marker refill includes an ink containing tube containing the oil-based ink composition described above, a marking chip attached to the tip of the ink containing tube, and the marking The marking body is held at the tip of the chip, and when the tightening torque of the screw member reaches a preset value, the marker refill has the marking body that is biased by the biasing member. The marking body is brought into contact with the head of the screw member, and the marking body is retracted against the biasing member. Screw member head that supplies the oil-based ink composition and thus attaches the oil-based ink composition to the surface of the head of the screw member in a dot shape and gives a marking that is thick and has excellent visibility. A method of marking on the surface of a part is provided.

  According to the oil-based ink composition for a tool having a marking function according to the present invention, even when oil or the like is applied to the surface of the work member, the surface of the work member after the work is finished. The above ink composition can be well adhered in a dot shape without repelling or running, and a marking that is thick, three-dimensional and excellent in visibility can be stably applied.

  Particularly, according to the oil-based ink composition for a screw member tightening tool having a marking function according to the present invention, the screw member head surface made of metal or resin that may be coated with oil or the like may have a screw member. After completion of the tightening operation, the ink composition can be well adhered in a dot shape without repelling or running, and a thick, three-dimensional marking with excellent visibility can be stably applied.

  The marker refill for a tool having a marking function according to the present invention contains the oil-based ink composition as described above, and only when the predetermined work of the working member by the tool is completed. The oil-based ink composition is supplied to the marking body of the marking chip that the refill has, and the surface of the working member after the completion of the work has a thickness and can provide a three-dimensional marking with excellent visibility. .

  In particular, the marker refill for a screw member tightening tool having a marking function according to the present invention contains the oil-based ink composition as described above, and in the screw member tightening operation by the tightening tool, the tightening torque of the screw member is increased. Only when the set value is reached, the oil-based ink composition is supplied to the marking body of the marking chip of the marker refill, and the screw member head surface is thick, three-dimensional, and easily visible. Marking is given.

  Therefore, according to the marker refill for a tool having a marking function according to the present invention, for example, a screw member tightening tool, the oil-based ink composition is not supplied to the marking body while the marking function is not used. Therefore, like a felt pen structure marking body in a tool having a conventional marking function, the oil-based ink composition does not dry and solidify on the surface of the marking body and does not disturb the marking function. After completion of the work, for example, the screw member head surface after the tightening work, the surface of the head is thick, three-dimensional, and highly visible, without the need to repel or run the ink composition. Can be granted.

  Further, according to the marking method of the present invention, the oil-based ink composition is supplied to the marking body of the marking chip of the marker refill only when the predetermined work using the working member by the tool is completed, The surface of the work member has a thickness, can provide a three-dimensional marking with excellent visibility, and the oil-based ink composition is like a marking body with a felt pen structure in a tool having a conventional marking function. There is no possibility that the marking function is hindered by drying and solidifying on the surface of the marking body or in the vicinity thereof.

  In particular, according to the marking method of the present invention, the oil-based ink composition is not supplied to the marking body while the marking function is not used. Therefore, the felt pen structure in a screw member fastening tool having a conventional marking function is provided. Like the marking body, the oil-based ink composition dries and solidifies on the surface of the marking body and does not interfere with the marking function. If the composition is thick, three-dimensional, excellent in visibility, and preferred, without marking or running of the composition, a marking having a hemispherical shape can be stably applied.

It is a partial cross section front view which shows an example of the refill for markers by this invention. It is sectional drawing which shows the front-end | tip part of the ball-point pen tip which is an example of the marking chip | tip by this invention. FIG. 1A is a longitudinal sectional view. FIG. (B) is a cross-sectional view taken along the plane AA of FIG. (A), but the ball is not shown. It is sectional drawing which shows the state and action | operation of the ball | bowl in the said ball-point pen tip which is an example of the marking chip | tip by this invention. FIG. 1A shows a state in which the ball is urged by the urging member in the tip direction of the ballpoint pen and is pressed and in close contact with the caulking portion of the ball house. FIG. 5B shows a state where the ball is in contact with the screw member head surface and is separated from the inside of the caulking portion of the ball house against the biasing member. It is a longitudinal cross-sectional view which shows the front-end | tip part of the cone marking chip | tip which is another example of the marking chip | tip by this invention.

(Oil-based ink composition)
The oil-based ink composition for a tool having a marking function according to the present invention, when an operator performs a predetermined operation by a working member using a tool having such a marking function, and when the operation is completed In order to confirm that the work is completed by the worker himself / herself, and to inform a third party, the work member, which has been finished by the marking function of the tool, is provided with an oil-based ink composition. It is an oil-based ink composition for imparting marking.

  An oil-based ink composition for a tool having such a marking function according to the present invention, preferably an oil-based ink composition for a screw member fastening tool having a marking function, comprises an organic solvent, an oil-soluble dye, a resin and a modified silicone. Oil, the viscosity at 20 ° C. is in the range of 8 to 25 mPa · s, the modified silicone oil is at least one selected from polyether-modified silicone oil and carboxyl-modified silicone oil, and the polyether-modified silicone oil is The polyether group consists of a polyoxyethylene group and a polyoxypropylene group, and 50% by weight or more of the total amount is a polyoxypropylene group.

(Organic solvent)
The oil-based ink composition for a tool having a marking function according to the present invention is a dot-shaped, in which a marking chip comes into contact with a work member on which a predetermined work has been completed, for example, a metal or resin screw member head surface. When applied to the organic solvent, the organic solvent is an alkylene glycol and an aliphatic lower alcohol having 1 to 3 carbon atoms so as to form a marking that is dry, thick, steric, and highly visible. It is preferably at least one selected from the group consisting of

  Examples of the alkylene glycol ether include propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monobutyl ether, dipropylene glycol monomethyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, and diethylene glycol monobutyl ether. Among them, propylene glycol monomethyl ether and propylene glycol monoethyl ether are preferable, and propylene glycol monomethyl ether is particularly preferable.

  Examples of the aliphatic lower alcohol having 1 to 3 carbon atoms include methanol, ethanol, n-propanol, isopropanol and the like, among which ethanol and isopropanol are preferable.

  In particular, in the present invention, the organic solvent is preferably 70% by weight or more of propylene glycol monomethyl ether based on the organic solvent.

  For example, in the present invention, an organic solvent containing 70% by weight or more of propylene glycol monomethyl ether and, if necessary, at least one selected from the above aliphatic lower alcohols having 3 or less carbon atoms and propylene glycol monobutyl ether is used in the present invention. It is an organic solvent preferably used.

  The aliphatic lower alcohol having 3 or less carbon atoms, particularly ethanol, is a preferred organic solvent for making the oil-based ink composition quick-drying. However, an oil-based ink composition comprising ethanol alone as an organic solvent. Since it is difficult to have a predetermined viscosity and ethanol easily absorbs water, it was applied to the surface of the working member after the work was completed, for example, the screw member head surface after the tightening, and a coating film was applied. When the evaporation from the coating film evaporates, the air on the coating film surface is cooled and dew condensation occurs on the coating film surface, resulting in insolubilization of the resin on the coating film surface and whitening of the coating film. is there.

  Therefore, in the present invention, when ethanol is used as the organic solvent, it is used in combination with propylene glycol mono n-butyl ether to slightly delay the evaporation rate of the organic solvent and evaporate water together with propylene glycol mono n-butyl ether. It is preferable to prevent whitening of the coating film while ensuring quick drying of the oil-based ink composition.

  The oil-based ink composition according to the present invention usually contains the organic solvent as described above in the range of 50 to 90% by weight, preferably in the range of 55 to 80% by weight. When the ratio of the organic solvent in the oil-based ink composition is too large, the marking concentration is small and the visibility is poor. On the other hand, when the ratio of the organic solvent in the ink composition is too small, the viscosity of the resulting ink composition becomes excessively large, and it becomes difficult to perform marking stably.

(dye)
In the oil-based ink composition according to the present invention, an oil-soluble dye that is soluble in the organic solvent is used as the colorant. Moreover, the dye which can be dissolved in the said organic solvent using the solubilizing agent (solubilizing agent) which can be melt | dissolved in the said organic solvent is also used suitably.

  Specific examples of the oil-soluble dye that can be used in the oil-based ink composition according to the present invention include, for example, an oil-soluble red dye (such as Bali Fast Red 1308 manufactured by Orient Chemical Industry Co., Ltd.) and an oil-soluble blue dye (Orient Chemical Industry ( Oil Blue 613, Oil Blue BA, etc.) and oil-soluble yellow dyes (Hodogaya Chemical Industries, Ltd. Spin Yellow C-GNH, etc.) can be mentioned.

  In the present invention, the oil-soluble dye is usually used in the range of 1 to 15% by weight, preferably in the range of 2 to 12% by weight, based on the oil-soluble ink composition. When there is too much content of the dye in an oil-soluble ink composition, the viscosity of the ink composition obtained is too high, and it cannot mark stably. However, when the dye content in the oil-soluble ink composition is too small, the color density of the marking is low and the visibility is poor.

(resin)
The oil-based ink composition according to the present invention includes a resin that can be dissolved in the oil-soluble organic solvent. In addition to functioning as a dispersant in the oil-based ink composition according to the present invention, this resin has a function of imparting fixability to the coating film of the oil-based ink composition according to the present invention on the surface of the metal or resin screw member head. .

  Any resin can be used as long as the resin is soluble in the organic solvent. Specific examples include, for example, ketone resins, phenolic resins such as alkylphenol resins, phenolic resins, and rosin-modified phenolic resins, xylene-based resins such as alkylphenol-modified xylene resins and rosin-modified xylene resins, and styrene-acrylic acid. Examples thereof include styrene-organic acid copolymer resins such as copolymers, styrene-maleic acid copolymers, and styrene-maleic anhydride copolymers. These resins may be used alone or in combination of two or more.

  According to the invention, the resin is used in the range of 3 to 30% by weight, preferably in the range of 5 to 25% by weight, based on the oil-based ink composition. When the content of the resin in the ink composition is too small, the coating film made of the ink composition may be inferior in fixability to the surface of the working member, particularly the screw member head surface made of metal or resin. However, when the resin content in the ink composition is too large, the resulting ink composition has an excessively high viscosity, and as a result, is stable on the surface of the working member, for example, the screw member head surface. It becomes difficult to apply marking.

(Modified silicone oil)
The oil-based ink composition for a tool having a marking function according to the present invention contains a modified silicone oil. In the present invention, the modified silicone oil is at least one selected from polyether-modified silicone oil and carboxyl-modified silicone oil, and the polyether-modified silicone oil has a polyether group having a polyoxyethylene group and a polyoxyethylene group. A polyoxyethylene-modified silicone oil consisting of oxypropylene groups, 50% by weight or more of which is a polyoxypropylene group, or a polyoxypropylene-modified silicone oil whose polyether groups are all polyoxypropylene groups It is.

  In the present invention, the modified silicone oil has an ink composition particularly when the oil-based ink composition is applied in the form of dots on a work member made of metal or resin, for example, a screw member head surface made of metal or resin. It has a function of preventing the spread of an object, having a thickness, being three-dimensional, and providing a coating film with excellent visibility, that is, marking. In the present invention, 0 .1 to 4.5% by weight, preferably 0.5 to 4% by weight.

  When the content of the modified silicone oil in the ink composition is too small, a stable and thick three-dimensional marking is formed especially on a metal or resin work member, for example, a screw member head surface. Can not do it. However, when the content of the modified silicone oil in the ink composition is too large, the resulting ink composition has an excessively high viscosity, and as a result, in particular, metal or resin work members such as screws It becomes difficult to stably mark the surface of the member head.

  Particularly, in the present invention, as the polyether-modified silicone oil, a polyoxypropylene-modified silicone oil whose polyether groups are all polyoxypropylene groups is preferably used. Since polyoxypropylene-modified silicone oil has many polyoxypropylene groups, the ink composition obtained is weakly compatible with non-absorbing surfaces made of metals and resins, and can give a thicker three-dimensional marking. it can.

  The modified silicone oil can be obtained as a commercial product. Examples of the polyether-modified silicone oil include TEGO Glide A115 (Evonik Degussa), which is a polyoxypropylene-modified silicone oil in which all polyether groups are polyoxypropylene groups, TSF4460 (Momentive Performance Materials), TSF4450 (Momentive Performance Materials), which is a polyoxyethylene polyoxypropylene modified silicone oil in which 50% by weight of the polyether group is a polyoxyethylene group and the remaining 50% by weight is a polyoxypropylene group Can be mentioned.

  Examples of the carboxyl-modified silicone oil include TSF4770 (Momentive Performance Materials).

  The number average molecular weight of the modified silicone oil described above is not particularly limited, but is usually in the range of 1000 to 30000, and preferably in the range of 2000 to 20000.

(viscosity)
The oil-based ink composition for a tool having a marking function according to the present invention needs to have a viscosity in the range of 8 to 25 mPa · s at 20 ° C. The viscosity is a viscosity measured at 20 ° C. using a cone and plate viscometer.

  The ink composition according to the present invention contains the modified silicone oil and has a viscosity in the above range, thereby bringing the marking body of the marker refill into contact with the surface of a metal or resin work member. In addition, the marking body recedes at the opening of the marking chip to create a gap between the marking body and the inner wall surface of the opening. As a result, the ink composition contained in the ink containing tube of the marker refill is marked. The marking body is applied to the surface of the metal or resin work member, for example, the surface of the screw member head in a dot-like manner to stabilize the thick three-dimensional marking. Form.

  Particularly preferably, the oil-based ink composition for a screw member fastening tool having a marking function according to the present invention is in the range of 10 to 24 mPa · s, and most preferably in the range of 15 to 24 mPa · s.

(Other ingredients)
If necessary, the oil-based ink composition according to the present invention includes, for example, a plasticizer such as sucrose benzoate, a viscosity modifier, a structural viscosity imparting agent, a dye solubilizing agent, a drying property imparting agent, and the like. An appropriate amount may be included.

(Manufacturing)
Although the oil-based ink composition by this invention is not restrict | limited at all in the manufacturing method, For example, it can manufacture by the following methods.

  That is, the organic solvent and the resin are stirred and mixed with heating, the resin is dissolved in the organic solvent, then the dye and other additives are added as necessary, and stirred and mixed with heating. An oil-based ink composition according to the present invention can be obtained by adding modified silicone oil at room temperature and stirring and mixing uniformly.

(Marker refill)
The marker refill according to the present invention is a refill that is detachably attached to a tool having a marking function, the ink containing tube containing the oil-based ink composition described above, the marking tip attached to the tip of the ink containing tube, and the above A marking body having a marking body provided at the tip of the marking chip, and when a predetermined work using a working member by a tool is completed, the marking body which has the marker refill and is biased by a biasing member The marking member is brought into contact with the working member, the marking body is moved back against the biasing member, and the oil-based ink composition is supplied to the marking body. Thus, the oil-based ink composition is applied to the surface of the working member. For attaching dot-like markings.

  As described above, the oil-based ink composition contains an organic solvent, an oil-soluble dye, a resin, and a modified silicone oil, and has a viscosity at 20 ° C. in the range of 8 to 25 mPa · s. It is at least one selected from silicone oil and carboxyl-modified silicone oil, and the polyether-modified silicone oil has a polyether group composed of a polyoxyethylene group and a polyoxypropylene group, and 50% by weight or more thereof is a polyoxypropylene group. Or a polyoxyethylene-modified polyoxypropylene-modified silicone oil whose polyether groups are all polyoxypropylene groups.

  As described above, the marker refill according to the present invention is a refill that is detachably attached to a tool having a marking function, and is preferably a refill that is detachably attached to a screw member tightening tool. An ink containing tube containing the composition, a marking chip attached to the tip of the ink containing tube, and a marking body held at the tip of the marking tip, and when the tightening torque of the screw member reaches a set value, The marker refill has a marking body that is biased by a biasing member, abuts against the screw member head, and retracts the marking body against the biasing member to The oil-based ink composition is supplied, and thus the oil-based ink composition is attached to the surface of the screw member head to form a dot-like shape. It is intended to impart Kingu.

  Hereinafter, as a specific example of the marker refill according to the present invention, a marker refill detachably attached to a screw member fastening tool having a marking function will be described in detail.

  The marker refill according to the present invention is detachably attached to a screw member tightening tool having a marking function, and is appropriately attached to the ink containing tube containing the oil-based ink composition described above and the tip thereof as necessary. It has a marking chip attached through a holder.

  The marking chip holds the marking body so as to be able to advance and retreat while protruding the tip of the marking body from the opening at the tip, and when the marking body abuts on the screw member head surface, the marking body However, the oil-based ink composition is applied in the form of dots on the screw member head surface, and the screw member surface has a thickness and forms a three-dimensional marking with excellent visibility.

  When the screw member is tightened and the tightening torque reaches a preset value, the marker refill is advanced (lowered) toward the screw member head, and the marking body at the tip of the marking chip is moved to the screw member. The tightening tool having a function of applying the oil-based ink composition supplied to the marking chip in contact with the head surface and applying the marking to the screw member head surface, as described above, Various things are already known.

  In the following, the marker refill “advance” means that the marker refill moves from the initial position toward the screw member head (that is, the working member), and usually the screw member from the initial position. This is synonymous with “down” toward the head (ie, the working member). The marker refill “retreats” to the initial position means that the marker refill is in the initial position from the state in which the marking body of the marker refill is in contact with the screw member head surface (that is, the working member). “Returning” to a position means synonymous with “returning” to the original position, and usually synonymous with “raising”.

  In addition, “the marking body is held in such a way that the tip of the marking body protrudes from the opening of the tip of the marking chip while being able to move forward and backward” means that “the marking body protrudes from the opening of the tip of the chip. , Is held so that it can move forward and backward in the axial direction of the chip ”.“ Proceeding ”means“ the marking body partially protruding from the opening at the tip of the chip is outward from the opening. "Retreat" means "retreat" means that the marking body partially protruding from the opening at the tip of the chip moves toward the inside of the opening and returns to the original position. "

  The screw member fastening tool having a marking function according to the present invention has a marker refill containing an oil-based ink composition for imparting markings on the surface of the screw member head so that the marker refill can be exchanged inside or outside the tool. It is attached to be freely replaceable.

  Since various mechanisms and means are already known, the details thereof will be omitted. In the present invention, the screw member tightening tool having the marking function also has the above function when the tightening torque of the screw member reaches a set value. The marker refill is advanced (lowered) in the direction of the screw member, and the marking body is brought into contact with the screw member head, whereby the oil-based ink composition adheres to the surface of the screw member head in the form of dots. Then, the marker refill is retracted (raised) to the initial position in the tightening tool and returned.

  That is, the marker refill according to the present invention has a thick three-dimensional shape at the point where the marking body abuts on the surface of the screw member head and then separates from the screw member head surface. A smooth coating, i.e. a marking, is formed and applied.

  Here, the oil-based ink composition for a tool having a marking function according to the present invention contains a predetermined amount of the above-described modified silicone oil as a component, and has a limited range of viscosity at 20 ° C., that is, 8 to A working member in which the marking body has completed a predetermined work by having a viscosity in the range of 25 mPa · s, preferably 10 to 24 mPa · s, most preferably 10 to 24 mPa · s, for example, a screw member head When the ink composition comes into contact with the surface, the ink composition is deposited in the form of dots, and a coating film that is thick, three-dimensional and excellent in visibility, that is, a marking can be applied.

  The oil-based ink composition for ballpoint pens usually has a high-boiling organic solvent as the main solvent as the organic solvent, and thus has a high viscosity, and usually has a viscosity of about 8000 to 14000 mPa · s at 20 ° C., Suitable for writing on absorbent surfaces such as paper. That is, when writing on an absorbent surface such as paper with a ballpoint pen ink composition, the handwriting is dried by penetrating the ink composition into the paper. Therefore, depending on the ink composition for ballpoint pens, it is impossible to write on a non-absorbable surface such as the surface of a screw member made of metal or resin, and even if the ink composition for ballpoint pens is applied, the ink composition Things do not dry.

  On the other hand, the ink composition for oil-based marking pens has a remarkably low viscosity, for example, about 5 mPa · s, compared to the oil-based ink composition for ball-point pens. If the ink composition for pens is filled, and the ball as the marking body is brought into contact with a non-absorbable surface such as a screw member head surface made of metal or resin, the ink composition will flow out excessively, Since it spreads on the surface, dot-shaped marking cannot be formed, and moreover, a thick three-dimensional marking cannot be formed.

  FIG. 1 shows an example of a marker refill 1 for a tool having a marking function according to the present invention. The marker refill is formed by attaching a marking chip 4 to the tip of a cylindrical ink storage tube 2 via an appropriate holder 3, and the marking chip holds a marking body 5 in an opening of the tip.

  In the marker refill shown in FIG. 1, a later-described ball-point pen tip is shown as the marking tip 4. Accordingly, the marking body 5 partially protrudes from the opening at the tip of the ball-point pen tip, and an opening (a ball-point to be described later). It is a ball that is held in the house.

  The oil-based ink composition 6 is stored in the ink storage tube of the marker refill, and the ink composition follows the consumption of the stored ink composition so that the ink composition does not flow backward. A backflow prevention body 7 is disposed in the ink receiving tube in contact with the ink composition at the rear end of the ink composition. A stopper 8 is usually attached to the rear end of the ink containing tube.

  In the present invention, a preferred first example of the marking chip included in the marker refill has a caulking portion that caulks the opening at the tip thereof, and a part of the ball as the marking body protrudes from the caulking portion. A ballpoint pen tip that is rotatably held in the ball house inside the opening and pressed against the inside of the caulking portion by an urging member disposed behind the ball. Yes, when the ball is brought into contact with the surface of a working member such as a screw member head, the ball moves back into the ball house against the biasing member.

  FIG. 2 shows the tip of the ball-point pen tip 9 as a preferred example of the marking tip included in the marker refill as described above. The ballpoint pen tip has an opening 10 at its tip, and has a substantially conical cylindrical body. The opening has an annular caulking portion 11 that is caulked inside, thus forming the opening. A space inside the opening including the annular caulking portion is formed in the ball house 12. The ball house holds the ball rotatably while causing a part of the ball 5 as a marking body to protrude from the opening 10 at the tip of the ball-point pen tip. A central hole 13 extends in the axial direction behind the ball house so as to communicate with the ink storage tube of the refill.

  As shown in FIG. 2 (a), the ball house 12 is a space surrounded by the side wall surface 14, the connection surface 15, and the seat surface 16 that are continuous to the caulking portion 11, and the side wall surface is annularly formed. The wall surface extends in the axial direction continuously to the caulking portion forming the opening, and the connection surface is a wall surface extending in a horizontal direction continuously to the side wall surface. Further, the seat surface is formed in an annular shape continuously from the connection surface to form a ball house. As will be described later, when the ball, which is the marking body, comes into contact with the head surface of the screw member and retreats inside the ball house against the biasing member 19, the seating surface supports the ball.

  As described above, the center hole 13 extends in the axial direction at the rear of the ball house, and the arrow groove 17 extends in the axial direction so as to communicate with the inside of the ink storage tube on the outer periphery of the center hole. In addition, the ink composition in the ink storage tube is supplied to the ball house by the arrow groove. In FIG. 2B, three arrow grooves 17 are shown.

  FIG. 3 shows the state and operation of the ball 5 in the ball house 12. As shown in FIG. 3, the ball is urged in the tip end direction of the chip, that is, in the direction of the opening 10 by a bar 19 extending from the coil spring 18 in FIG. The ink composition stays in the ball house because it is in close contact with the inside of the caulking portion 11 that forms the annular opening. The ball house is connected to the central hole 13 behind the ball house. As described above, the groove 16 extends in the axial direction in the central hole so as to communicate with the ink containing tube. An oil-based ink composition is supplied from the ink storage tube into the ball house.

  According to such a ball-point pen tip, as shown in FIG. 3 (b), the marker refill advances in the direction of the work member, for example, the screw member head, for which the predetermined work has been completed, and the ball 5 The ball retreats inside the ball house 12 against the biasing member 18 when it comes into contact with the surface of the member, for example, the screw member head surface, and the inside of the ball and the caulking portion 11 at the opening 10 at the tip. Thus, the ink composition in the ball house passes through the gap from the ball house to the protruding portion of the ball protruding from the opening, and the ball is a work that has finished a predetermined work. The ink composition is applied in the form of dots on the surface of the working member, for example, on the surface of the head of the screw member, and thus marking is applied to the surface of the working member on which the predetermined work has been completed.

  Another preferred second example of the marking chip included in the marker refill according to the present invention has a cylindrical body and a cone extending in the tip direction and having a smaller cross section in the tip direction as the marking body, The cone is held so as to be able to advance and retreat, with a part protruding from the opening at the tip of the marking chip. The cylindrical body has an annular groove, and the annular groove is made of an annular member made of an elastic material. The conical body is fitted as a valve body and pressed against the inner wall surface of the opening by an urging member disposed behind the conical body. When the tip of the cone is brought into contact with the surface of the working member for which a predetermined operation has been completed, for example, the surface of the screw member head, the cone is retracted against the biasing member.

  FIG. 4 shows an example of the tip of the second marking chip 20. This marking chip has a tube body 22 having an opening 21 at the tip, and the marking body 23 is urged in the tube body by an urging member, for example, a coil spring 24, toward the tip of the chip. The conical tip is biased so as to protrude from the opening.

  That is, the marking chip 20 shown in the drawing is a weight having a substantially hemispherical application body 26 at the tip, whose cross section decreases from the cylindrical body 25 toward the tip, instead of the ball as the marking body in the above-described ballpoint pen tip. The body 27 is provided as a marking body.

  The inner wall surface 28 of the opening 21 at the tip end of the tip has a first tapered surface 29 corresponding to the cone, and the cone is usually inserted into the tip by a biasing member, for example, the coil spring 24. And is in close contact with the first tapered surface. A second tapered surface 30 having a different angle is formed continuously with the first tapered surface.

  Further, the cylindrical body 25 of the marking body has an annular groove 31 at a connection portion to the cone, and an elastic material, for example, a rubber ring member 32, for example, a rubber O-ring, is provided in the annular groove. Since the marking body is urged in the distal direction by the urging member, the ring member is pressed against and closely contacts the second tapered surface 30, and the ink composition is removed from the tube body. The ink composition is prevented from flowing out from the coating body at the tip of the marking body.

  According to such a marking chip, when the tip of the cone, which is a marking body, comes into contact with the screw member head, the marking body including the cone moves backward against the biasing member, and the ring As the member 32 is detached from the second tapered surface 30, a gap is formed between the cone and the first tapered surface, and the ink composition is supplied to the application portion at the tip of the cone, and thus, The application part at the tip of the cone applies the ink composition in a dot shape to the surface of the working member on which the predetermined work has been completed, for example, the surface of the screw member head, to give the marking.

  In the present invention, the marker refill for the tool having a marking function is not limited to the above-described examples, and when the predetermined work using the work member by the tool is finished, the marker refill is The marking body that is biased by the biasing member contacts the working member, the marking body moves backward against the biasing member, and the oil-based ink composition is supplied to the marking body. Then, it is sufficient that the oil-based ink composition is attached to the surface of the working member, and thus a dot-like marking can be formed.

  For example, in the case of a marker refill for a screw member tightening tool having a marking function, when the screw member tightening torque reaches a set value in the screw member tightening operation, the marker refill has the biasing force. The marking body biased by the member abuts against the screw member head, the marking body moves backward against the biasing member, and the oil-based ink composition is supplied to the marking body, It suffices if the oil-based ink composition is attached to the surface of the screw member head and thus a dot-like marking can be formed.

  Thus, according to the present invention, a marker refill containing the oil-based ink composition described above is attached to a tool having a marking function, for example, a screw member tightening tool, and the tightening torque of the screw member is set in advance. When the value is reached, the marking body that the marker refill has and is urged by the urging member is brought into contact with the head of the screw member, and the marking body is retracted against the urging member. Thus, by supplying the oil-based ink composition to the marking body and thus attaching the oil-based ink composition to the surface of the screw member head in the form of dots, a thick marking can be applied thereto. .

  EXAMPLES The present invention will be described below with reference to examples, but the present invention is not limited to these examples.

  Details of the components used in the following Examples and Comparative Examples are as follows.

Dye Red dye: Bali Fast Red 1308 manufactured by Orient Chemical Industry Co., Ltd.
Blue dye 1: Oil Blue 613 manufactured by Orient Chemical Co., Ltd.
Blue dye 2: Oil Blue BA manufactured by Orient Chemical Industry Co., Ltd.
Resin Rosin-modified maleic resin: Marquide 33 manufactured by Arakawa Chemical Industries, Ltd.
Alkylphenol resin 1: Tamanol 510 manufactured by Arakawa Chemical Industries, Ltd.
Alkylphenol resin 2: Hitanol 1140 manufactured by Hitachi Chemical Co., Ltd.
Styrene-maleic resin: Arakawa 700 manufactured by Arakawa Chemical Industries, Ltd.
Plasticizer
Sucrose benzoate: Monopet SB manufactured by Daiichi Kogyo Seiyaku Co., Ltd.

Organic solvent Dowanol PM: Dow Chemical Propylene Glycol Monomethyl Ether Ethanol: Nippon Alcohol Sales Co., Ltd. Dowanol PNB: Dow Chemical Propylene Glycol Mono n-Butyl Ether Modified Silicone Oil TEGO Glide A115: Evonik Degussa Polyoxypropylene Modified Silicone oil TSF4460: Polyoxypropylene modified silicone oil manufactured by Momentive Performance Materials TSF4450: Polyoxyethylene propylene modified silicone oil manufactured by Momentive Performance Materials (both oxyethylene and oxypropylene content are 50% by weight)
TSF4440: Momentive Performance Materials polyoxyethylene modified silicone oil TSF4470: Momentive Performance Materials carboxyl modified silicone oil

  In the following Examples and Comparative Examples, the viscosity of the obtained oil-based ink composition was measured under the following measurement conditions using a B-type viscometer VISCOMETER TVE-25L manufactured by Toki Sangyo Co., Ltd. Cone rotor angle and radius: 1 ° 34 ′ and 24 cm, rotation speed: 20 ppm, time: 180 seconds, temperature: 20 ° C.

  In the following examples and comparative examples, a refill having a ballpoint pen tip was manufactured and attached to a screw member fastening tool having a marking function.

  Using such a screw member tightening tool, the tightening torque of the screw member is set to a predetermined value, the metal screw member is tightened, and the marking is applied to the surface of the screw member head. The ink outflow from the body and the marking properties imparted to the screw member head surface were observed, and the ink outflow properties and marking properties were evaluated as follows.

Marking properties Observe the markings given on the head surface of the screw member above. When the ink composition does not bounce or run and the marking is in the form of a thick dot, it is marked as ◯ (good). △ (Slightly bad) when there is some spread of the ink composition on the marking, and there is almost no thickness, and the ink composition has rebound and run, the spread is remarkable, and the thickness is When it was not, it was set as x (defect). Here, the running of the ink means that when the marking body is brought into contact with the head surface of the screw member, the marking body extends beyond the portion where the ink composition comes into contact, and the ink composition extends and spreads. This means that the marking shape is disturbed.

Ink spillability A refill filled with an ink composition is attached to a screw member tightening tool, a metal screw member is tightened 100 times with a predetermined torque, and marking is applied to the surface of the screw member head. Evaluation was based on weight loss of the ink composition. When the weight loss of the ink composition was equal to or higher than the reference value, it was evaluated as ◯ (good), and when it was less than the reference value, it was rated as x (defective).

  The above results are shown in Tables 1 and 2.

  As is clear from the results shown in Tables 1 and 2, each of the oil-based ink compositions according to the examples contains a predetermined amount of modified silicone oil and has a viscosity at 20 ° C. in the range of 8 to 25 mPa · s. The ink flowability was good, and the markings formed on the surface of the head of the metal screw member were all thick and three-dimensional dots.

  On the other hand, the ink composition according to Comparative Example 2 contains a modified silicone oil, and the ink composition according to Comparative Example 4 does not contain a modified silicone oil. However, since the viscosity is lower than 8 mPa · s, the ink composition Although the flowability is good, the ink composition spreads on the surface of the head of the metal screw member, and a thick three-dimensional marking could not be stably applied. The ink composition according to Comparative Example 8 did not contain a modified silicone oil, and the viscosity was too high, so that both the ink spillability and the marking were normal.

  In addition, the ink compositions according to Comparative Examples 1, 3 and 5 all have a viscosity in the range of 8 to 25 mPa · s, but do not contain modified silicone oil, so that the ink outflow property is good, but the metal screw member The ink composition spreads on the head surface, and a thick three-dimensional marking could not be stably applied.

  Ink compositions according to Comparative Examples 6 and 7 both had inferior marking properties as a result of the excessive content of modified silicone oil.

  In the ink composition according to Comparative Example 9, since the modified silicone oil was a polyoxyethylene-modified silicone oil, a thick three-dimensional marking could not be stably formed.

DESCRIPTION OF SYMBOLS 1 ... Marker refill 2 ... Ink storage tube 3 ... Holder 4 ... Marking chip 5 ... Marking body (ball)
DESCRIPTION OF SYMBOLS 6 ... Ink composition 9 ... Ball-point pen tip 10 ... Opening part 11 ... Caulking part 12 ... Ball house 13 ... Center hole 14 ... Side wall surface 15 ... Connection surface 16 ... Seat surface 17 ... Arrow groove 18 ... Coil spring 19 ... Rod 20 ... Marking chip 21 ... Opening 22 ... Tube 23 ... Marking body 24 ... Coil spring 25 ... Column body 26 ... Application body 27 ... Weight body 28 ... Inner wall surface 29 ... First taper surface 30 ... Second taper surface 31 ... Rolling groove 32 ... Rubber ring member

Claims (16)

  An oil-based ink composition for a tool having a marking function, comprising an organic solvent, an oil-soluble dye, a resin and a modified silicone oil, having a viscosity at 20 ° C. in the range of 8 to 25 mPa · s, and the modified silicone oil Is at least one selected from polyether-modified silicone oil and carboxyl-modified silicone oil, and the polyether-modified silicone oil has a polyether group composed of a polyoxyethylene group and a polyoxypropylene group, and 50% by weight or more thereof. An oil-based ink composition, which is a polyoxyethylene polyoxypropylene-modified silicone oil which is a polyoxypropylene group or a polyoxypropylene-modified silicone oil whose polyether groups are all polyoxypropylene groups.   The oil-based ink composition according to claim 1, wherein the polyether-modified silicone oil is a polyoxypropylene-modified silicone oil in which 100% by weight of the polyether group is a polyoxypropylene group.   The oil-based ink composition according to claim 1, comprising the modified silicone oil in a range of 0.1 to 4.5% by weight.   The oil-based ink composition according to claim 1, wherein the organic solvent is at least one selected from alkylene glycol and an aliphatic lower alcohol having 1 to 3 carbon atoms.   The oil-based ink composition according to claim 1, wherein the organic solvent contains 70% by weight or more of propylene glycol monomethyl ether.   The oil-based ink composition according to claim 1, wherein the resin is at least one selected from a ketone-based resin, a phenol-based resin, a xylene-based resin, a styrene-organic acid copolymer resin, and a polyacrylic ester resin.   A marker refill that can be detachably attached to a tool having a marking function, an ink containing tube containing an oil-based ink composition, a marking tip attached to the tip of the ink containing tube, and a marking provided at the tip of the marking tip When the predetermined work by the working member using the tool is completed, the marker refill has a marking body that is urged by the urging member to contact the working member, The marking body is retracted against the urging member to supply the oil-based ink composition to the marking body, and thus the oil-based ink composition is attached to the working member, thereby forming a dot-shaped marking. A refill for a marker for imparting water, wherein the oil-based ink composition comprises an organic solvent, an oil-soluble dye, a resin, and a modified silico. The modified silicone oil is at least one selected from polyether-modified silicone oil and carboxyl-modified silicone oil, and the polyether-modified silicone oil is The polyether group is composed of a polyoxyethylene group and a polyoxypropylene group, and 50% by weight or more of the polyoxyethylene polyoxypropylene modified silicone oil is a polyoxypropylene group, or all of the polyether groups are polyoxyethylene. A marker refill that is a polyoxypropylene-modified silicone oil having an oxypropylene group.   A marker refill detachably attached to a screw member fastening tool having a marking function, comprising an ink containing tube containing an oil-based ink composition, a marking tip attached to the tip of the ink containing tube, and a tip of the marking tip When the tightening torque of the screw member reaches a set value, the marking body that the marker refill has and is urged by the urging member is brought into contact with the screw member head. The marking body is retracted against the biasing member to supply the oil-based ink composition to the marking body, and thus the oil-based ink composition is attached to the surface of the screw member head to form dots. A marker refill for imparting a marking, wherein the oil-based ink composition contains an organic solvent, an oil-soluble dye, a resin, and a Including a silicone oil, having a viscosity at 20 ° C. in the range of 8 to 25 mPa · s, and the modified silicone oil is at least one selected from a polyether-modified silicone oil and a carboxyl-modified silicone oil, and the polyether-modified silicone oil Is a polyoxyethylene polyoxypropylene-modified silicone oil in which the polyether group is composed of a polyoxyethylene group and a polyoxypropylene group, and 50% by weight or more thereof is a polyoxypropylene group, or all of the polyether groups are A marker refill that is a polyoxypropylene-modified silicone oil that is a polyoxypropylene group.   The marking chip has a caulking portion that caulks the opening at the tip thereof, and a part of the ball that is the marking body protrudes from the caulking portion and is rotatably held in the ball house in the opening. The marker refill according to claim 8, wherein the marker refill is a ball-point pen tip in which the ball is pressed inside the caulking portion by an urging member disposed behind the ball.   The marking chip has a cylindrical body and a cone that extends in the tip direction and has a smaller cross section in the tip direction as a marking body, and the cone is partially formed from the opening at the tip of the marking chip. The cylindrical body has an annular groove, and protrudes while being protruded, and an annular member made of an elastic material is fitted as an annular valve body in the annular groove, and the urging force is disposed behind the cone. The cone is pressed against the inner wall surface of the opening by a member and brought into intimate contact, and the annular valve provided on the cylindrical body is pressed against and brought into intimate contact with the inner inner wall of the opening. 8. The marker refill according to 8.   The marker refill according to claim 10, wherein the cone is a cone or a pyramid.   A marker refill is attached to a tool having a marking function. The marker refill is attached to an ink containing tube containing an oil-based ink composition, a marking tip attached to the tip of the ink containing tube, and a tip of the marking tip. When the predetermined work by the working member using the tool is completed, the marking body having the marker refill and being biased by the biasing member when the work is completed. The marking member is brought into contact with the working member, the marking body is moved back against the biasing member, and the oil-based ink composition is supplied to the marking body. Thus, the oil-based ink composition is applied to the surface of the working member. Is a marking method in which a thick marking is applied thereto, and the oil-based ink composition is organic. A medium, an oil-soluble dye, a resin, and a modified silicone oil, the viscosity at 20 ° C. is in the range of 8 to 25 mPa · s, and the modified silicone oil is at least one selected from polyether-modified silicone oil and carboxyl-modified silicone oil The polyether-modified silicone oil is a polyoxyethylene polyoxypropylene-modified silicone oil in which the polyether group is composed of a polyoxyethylene group and a polyoxypropylene group, and 50% by weight or more thereof is a polyoxypropylene group. Or a marking method wherein the polyether group is a polyoxypropylene-modified silicone oil in which all of the polyether groups are polyoxypropylene groups.   A marker refill is attached to a screw member tightening tool having a marking function, wherein the marker refill includes an ink containing tube containing an oil-based ink composition, a marking tip attached to the tip of the ink containing tube, and the marking tip. A marking body provided at the tip of the screw member, and when the tightening torque of the screw member reaches a preset value, the marking member has the marking body and is biased by the biasing member. Abutting on the head, retracting the marking body against the biasing member, supplying the oil-based ink composition to the marking body, and thus the oil-based ink composition on the surface of the screw member head Is a method of marking on the surface of a screw member head to attach a thick marking to the surface of the screw member. The ink composition contains an organic solvent, an oil-soluble dye, a resin and a modified silicone oil, and has a viscosity at 20 ° C. in the range of 8 to 25 mPa · s. The modified silicone oil comprises a polyether-modified silicone oil and a carboxyl-modified silicone oil. At least one selected, and the polyether-modified silicone oil has a polyoxyethylene polyoxypropylene in which the polyether group is composed of a polyoxyethylene group and a polyoxypropylene group, and 50% by weight or more thereof is a polyoxypropylene group. A marking method on the head surface of a screw member, which is a modified silicone oil or a polyoxypropylene-modified silicone oil whose polyether groups are all polyoxypropylene groups.   The marking chip has a caulking portion that caulks the opening at the tip thereof, and a part of the ball that is the marking body protrudes from the caulking portion and is rotatably held in the ball house in the opening. The marking method according to claim 13, wherein the ballpoint pen tip is formed by pressing the ball against the inside of the caulking portion with an urging member disposed behind the ball.   The marking chip has a cylindrical body and a cone that extends in the tip direction and has a smaller cross section in the tip direction as a marking body, and the cone is partially formed from the opening at the tip of the marking chip. The cylindrical body has an annular groove, and protrudes while being protruded, and an annular member made of an elastic material is fitted as an annular valve body in the annular groove, and the urging force is disposed behind the cone. The cone is pressed against the inner wall surface of the opening by a member and brought into intimate contact, and the annular valve provided on the cylindrical body is pressed against and brought into intimate contact with the inner inner wall of the opening. 14. The marking method according to 13. The marking method according to claim 15, wherein the cone is a cone or a pyramid.

Images