CN1167040A

CN1167040A - Ink reservoired pen

Info

Publication number: CN1167040A
Application number: CN97111598A
Authority: CN
Inventors: 福诚
Original assignee: Kotobuki and Co Ltd
Current assignee: Kotobuki and Co Ltd
Priority date: 1996-05-24
Filing date: 1997-05-21
Publication date: 1997-12-10
Also published as: KR970061080U; KR200142256Y1; JPH09315079A; TW365229U

Abstract

The invention provide a pen to improve the wettability of ink to a pen core without treating with an etching solution by executing the coating treatment of a hydrophilic solution at the core. The pen core made of a plastic provided in the front barrel of the direct liquid feed type writing instrument has a central cylinder inserted with an ink guide core, and a cornice-like ink reservoir provided on the outer periphery of the cylinder. A pen constituted integrally with the core at the end side of the core is held at the end inner periphery of the core, an projected forward. The core is coated with hydrophilic solution before assembling, thereby incorporating the wettability of the ink in the core.

Description

Direct-fluid-supply writing implement

The present invention relates to use direct-liquid type pen, mark's pen, signing pen, the water-based steel-ball pen direct-fluid-supply writing implements such as (ballpoint pens) of low viscous ink, relate in particular to a kind of direct-fluid-supply writing implement that can improve ink the wetability of pen core tube.

In the past, this direct-fluid-supply writing implement for improve low viscous ink to the wetability of multilayer vane type pen core tube mainly be in ink itself interpolation with additives such as interfacial agents.Except the method for the above-mentioned additive that in ink, adds special prescription, usually the main stream approach that adopts widely is that the pen core tube is immersed with sulfuric acid is in the etch solution of heating of principal component, subsequently, take out and wash processing, the surperficial asperitiesization that makes the pen core tube by this is to reduce the surface tension of ink, and then invest the wetability of ink to the pen core tube, in order to avoid because of the surface tension of ink cause the ink sluggishness before and mobile not good shortcoming.

Yet, is to mix the solution that forms with anhydrous chromic acid and phosphoric acid again as principal component with sulfuric acid according to the employed etch solution of above-mentioned main stream approach because of what use, itself not only has toxicity this solution, and people's skin, mucous membrane all there is excitant, sometimes even might cause skin scald, thereby when in factory, using and carelessness for the moment can not be arranged, become the big problem of one thus aspect safety management.

In addition, think what effect this etch solution for not having by the made pen core tube of other plastic cement beyond the ABS resin, so have to use single material of planting.

The present invention develops in view of the above problems, and its purpose is to provide a kind of pen core tube can improve the direct-fluid-supply writing implement of ink to the wetability of pen core tube through the processing procedure of the etch solution that adopted in the past.

For achieving the above object, the present invention has taked measure as described below, forms surface film thereby promptly the pen core tube is applied with hydrophilic water solution comprehensively, can improve the ink wetability of pen core tube thus, and simultaneously, the wetting effect that this film brought can forever keep.

In other words, above-mentioned hydrophilic water solution is coated on the pen core tube, can be easily at the fractal one-tenth hydrophily of its stacked vane type ink storing section swelling epithelium, to promote the ink wetting effect.

The host of hydrophilic solution of the present invention (main composition) has polyvinyl alcohol, poly-grape amine sugar, acrylate, polyvinyl pyrrolidone, Sodium Alginate, marine alga propane diols, glycolic cellulose sodium.These compositions can be dissolved in the water alone or in combination becomes the aqueous solution, is coated on the pen core tube with suitable application pattern, to form thin film again.Host independent Use Limitation fruit better and is prepared and is handled also fairly simplely, therefore relatively is convenient to implement, and uses that also do not have can not but two or more the host of suitable choosing mixed.These aqueous solution are avirulence both, the also easy and safety of management and use, and can be suitable for most plastic material.

Especially, the principal component of hydrophilic water solution is good to adopt polyvinyl alcohol, poly-grape amine sugar, acrylate, owing to will on the plastic colloid applicator surface, form insoluble hydrophily swelling lining epithelium, therefore can keep its original hydrophily effect for a long time constantly.In addition, polyvinyl alcohol is because of the dissolution rate height to water, and security simultaneously is also high, so preferably adopt it as main composition.

The above-mentioned aqueous solution preferably makes host be dissolved in this water with the ratio of 0.1～10.0 weight % with for water 99.9～90.0 weight %, and is the best to adopt the about 1 weight % of host wherein.If the ratio of host is too high, adherence will appear, is difficult for like this forming uniform thin layer on the full surface of pen core tube, effect can be not fine thus.

In addition, if be 0.3% Hoxide N-100 (trade name) by weight percentage for the above-mentioned aqueous solution can one being re-used and when being necessary to invest keeping quality, also can adding in addition.

Though the material of pen core tube preferably adopts ABS resin, for adopting polypropylene, polyethylene, poly-thiamines synthetic resin materials (being plastic cement) such as (being nylon), can realize increasing significantly the purpose of wetability equally.

In addition, for the ink-guiding core that plastic materials such as the above-mentioned ABS of same use are made, also can equally with the pen core tube carry out the surface applied of identical hydrophilic water solution and handle, and can improve the wetability of ink equally ink-guiding core.

Above-mentioned purpose of the present invention, feature and advantage can from the following explanation that the reference accompanying drawing carries out solve clearer, wherein:

Fig. 1 is the longitudinal section according to the direct-fluid-supply writing implement of one embodiment of the present of invention.

Be described as follows with regard to embodiments of the invention referring now to accompanying drawing:

Fig. 1 represents the structure according to the direct-fluid-supply writing implement of one embodiment of the present of invention.Among the figure, label 10 is the leading portion shaft of a writing brush, and in this example, the leading portion shaft of a writing brush 10 releasably is screwed on the front end of the back segment shaft of a writing brush 12 by means of screw thread, is provided with plastic cement system pen core tube 14 in the leading portion shaft of a writing brush 10.

The stacked ink that pen core tube 14 has the central tube 14a that is used for inserting the ink-guiding core 20 that extends along the axis direction of a tool and is formed at central tube 14a periphery stores part 14b.This ink stores part 14b and is formed with the narrow axial gas-liquid exchange ditch 14c that extends along axis direction, its furrow width stores ditch 14d than the roomy and ring-type ink that forwards become stage ground furrow width to increase gradually along axis direction of gas-liquid exchange ditch 14c, and the exhaust ventral groove 14e that extends equally vertically that is positioned at the opposition side of gas-liquid exchange ditch 14c.

Be inserted with the front end that is connected in ink-guiding core 20 in the front aperture of pen core tube 14, constitute one and outstanding forward tip of stylus 18 with ink-guiding core 20.In addition, nib 18 constitutes one with ink-guiding core 20 in the present embodiment, but also nib 18 and ink-guiding core 20 can be formed respectively, and both are contacted with each other.

The rear end of ink-guiding core 20 connects the inner storage ink cylinder 22 that contains low viscous ink, for storage ink cylinder 22 can be substituted it being constituted front end can load and unload on the coupling part that is enclosed within the leading portion shaft of a writing brush 10 freely, or constitute one with the leading portion shaft of a writing brush 10 on the coupling part that is attached at the leading portion shaft of a writing brush 10 that is fixed or directly, with formation can not substitute fixed all feasible.In addition, label 30 is a cap, and it covers the front end at the leading portion shaft of a writing brush 10, to keep the air-tightness of storage ink cylinder 22 and nib 18, prevents the ink volatilization.

The direct-fluid-supply writing implement of Gou Chenging as described above, its pen core tube 14 that is used to control storage, water conservancy diversion ink and gas-liquid exchange interaction has been carried out the coating of hydrophilic solution in advance all sidedly to be handled, do the back and form this hydrophilic solution film of one deck, thus the wetability of having given 14 pairs of low viscous inks of pen core tube.

An embodiment who below just forms hydrophilic film is described in detail:

Embodiment

Get be that 1% polyvinyl alcohol (PVA) is dissolved in by weight percentage is to form hydrophilic water solution in 99% the water by weight percentage, and with suitable coating method with this aqueous solution be coated in by on the pen core tube 14 of ABS resin moulding to implement surface treatment, through after about 30 minutes drying, form thin film on the surface of pen core tube 14.After being installed in ink-guiding core 20 and nib 18 in this pen core tube 14 after treatment, again this assembly is inlaid in the front end inside of the leading portion shaft of a writing brush 10, and after having filled 1/3rd the low viscous ink that is about total capacity in the ink cylinder 22, storage is installed in the rear end of the leading portion shaft of a writing brush 10 together with the back segment shaft of a writing brush 12, and confirm ink mat capillarity be guided to nib 18 be can write state after, cover cap 30.

With using the direct-fluid-supply writing implement (B) that constitutes by identical assembling mode to place room temperature to add 30 ℃ environmental tester with the downward state of nib respectively, observe its variation according to the direct-fluid-supply writing implement (A) of the pen core tube 14 of the coated processing of the present invention and the pen core tube 14 that uses uncoated to handle.

The result, though two kinds of pens all are stamped and keep bubble-tight cap 30, but, the inner Yin Wendu of storage ink cylinder presses liter in causing owing to rising, use a general tool (B) commonly used that applies the pen core tube of handling 14 without solution of the present invention that the phenomenon of a large amount of ink conglomerates delays can take place in nib portion after about 5 seconds, and after about 30 seconds, what be gathered in nib portion is melted ink meeting seepage flow to cap 30.

On the other hand, use the present invention's tool (A) of pen core tube 14 then to find no the phenomenon that ink conglomerates is stranded in nib portion through handling according to coating of the present invention, along with pressing liter in the storage ink cylinder, the ink that flows out from the storage ink cylinder make nib suitably wetting after, evenly and glibly be conveyed to pen core tube 14, and store in the ink of pen core tube and store among the part 14b.

Above-mentioned Therapy lasted is carried out a week, and of the present invention tool (A) do not find to have ink to assemble the phenomenon generation of being detained toward nib portion yet.

Equally, account for the aqueous solution that 99% water forms with the ratio dissolving that accounts for 1% poly-grape amine sugar by weight percentage and be coated on the tool (A ') that ABS resin system pen core tube 14 is constituted using, under identical conditions, carry out and the aforementioned identical experiment of aqueous solution coating processor (A) of using polyvinyl alcohol as host, the ink conglomerates trapping phenomena of nib portion does not equally take place as a result, yet.After a week, the phenomenon that nib portion ink conglomerates is detained does not take place yet.

In addition, similarly, (A ") carries out the same result of experiment when using above-mentioned polyvinyl alcohol as host as can be seen; the phenomenon of nib ink conglomerates delay does not take place, and the phenomenon of ink conglomerates delay did not take place after a week yet to using ABS resin system pen core tube 14 to apply a tool of processing with 99% the water-soluble aqueous solution of separating 1% acrylate from using by weight percentage.

As mentioned above, the present invention can handle to form hydrophily swelling film by the pen core tube being applied with the surface applied of safety and stable hydrophilic water solution, and then the enhancing ink is to the wetability of pen core tube, therefore, when the temperature rises or cause by air pressure change storing up ink cylinder in press when rising, because the pen core tube has good wetability, can prevent effectively that the ink conglomerates delay of nib portion from being the phenomenon of dripping and taking place; Simultaneously, in writing, as surpass write necessary amount ink when inkholder is supplied to nib, unnecessary ink can slyness refluxes swimmingly and stores in the pen core tube, therefore can keep ink certain, and then keep continous-stable and smooth writing effect the feed-in amount of nib.

Claims

1. direct-fluid-supply writing implement, has the shaft of a writing brush, be contained in the shaft of a writing brush fore-end and be provided with multi-layer stacks formula ink and store pen core tube partly in its periphery, the ink-guiding core that is plugged in the centre bore of pen core tube and extends along the axis of a tool, ink-guiding core is integrally formed or form individually and the nib of the preceding end in contact of rear end and ink-guiding core therewith, and the rear end side that is located at above-mentioned ink-guiding core is in order to hold the storage ink cylinder that hangs down viscous ink;

It is characterized in that: above-mentioned pen core tube is handled by the surface applied of carrying out hydrophilic solution and is formed one deck hydrophily swelling film in its surface.

2. direct-fluid-supply writing implement as claimed in claim 1, it is characterized in that, described hydrophilic solution is for containing from polyvinyl alcohol the host of one or two or more kinds that select in poly-grape amine sugar, acrylate, polyvinyl pyrrolidone, Sodium Alginate, marine alga propane diols, the glycolic cellulose sodium and the aqueous solution of water.

3. direct-fluid-supply writing implement as claimed in claim 2 is characterized in that, described hydrophilic water solution contains to be 0.1～10.0% above-mentioned host by weight percentage and to be 99.9～90% water.