CN113580811A

CN113580811A - Liquid-guiding element and writing instrument

Info

Publication number: CN113580811A
Application number: CN202010368229.6A
Authority: CN
Inventors: 曹海英
Original assignee: Shaoxing Shangyu Jizhen Trade Co ltd
Current assignee: Shaoxing Shangyu Jizhen Trade Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-11-02
Also published as: WO2021218010A1

Abstract

The invention discloses a liquid guiding element and an applying tool, wherein the liquid guiding element is internally provided with a three-dimensional network structure and can absorb and release liquid, one side of the liquid guiding element is in contact with the liquid in a liquid storage element of the applying tool, a gap D is arranged between the liquid guiding element and the inner wall of the liquid storage element, the maximum inner circle diameter of the gap D is 0.03mm to 0.25mm, and the liquid guiding element controls the gas-liquid exchange of the applying tool. Through setting up the clearance between the inner wall of drain component and stock solution component, the gas-liquid exchange of scribbling the instrument can be controlled to the drain component to satisfy the performance requirement of different scribbling instruments.

Description

Liquid-guiding element and writing instrument

Technical Field

The invention relates to a liquid guide element and a painting tool, in particular to a liquid guide element for controlling gas-liquid exchange in a painting tool.

Background

In the field of controlled liquid release technology, such as in markers, it is common to use a core formed by wrapping a fiber bundle with a film as a material for absorbing and containing liquid. The liquid output of the rolled core can be gradually reduced along with the increase of the using time, and the rolled core has the defect of large residual liquid amount. Another common technique is to use a wick to conduct liquid and combine with a fin set to control the liquid release, and this combined technique of wick and fin set has high requirements for manufacturing precision and high manufacturing cost, and when the quality of parts fluctuates slightly, the liquid is easy to flow out smoothly or leak.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a liquid guide element for an applying tool, wherein the liquid guide element is internally provided with a three-dimensional network structure and can absorb and release liquid, one side of the liquid guide element is in contact with the liquid in a liquid storage element of the applying tool, a gap D is arranged between the liquid guide element and the inner wall of the liquid storage element, the maximum inscribed circle diameter of the gap D is 0.03mm to 0.25mm, and the liquid guide element controls the gas-liquid exchange of the applying tool.

Further, the liquid guiding element is made of fiber bonding.

Further, the density of the liquid guiding element is 0.1 g/cm³To 0.35 g/cm³。

Further, the thickness of the liquid guide element is 0.3mm to 3 mm.

Further, the fibers are bicomponent fibers, which are in a sheath-core or side-by-side configuration.

Further, the painting tool comprises a liquid storage element and a liquid guide element of any one of the liquid guide elements, one side of the liquid guide element is in contact with liquid in the liquid storage element, a gap D is arranged between the liquid guide element and the inner wall of the liquid storage element, the maximum inscribed circle diameter of the gap D is 0.03mm to 0.25mm, and the liquid guide element controls gas-liquid exchange of the painting tool.

Further, the applicator includes an applicator head, the other side of the fluid-conducting element contacting the applicator head, the fluid in the fluid reservoir element being conducted to the applicator head via the fluid-conducting element.

Further, the writing tool is provided with a buffer chamber.

Further, the writing instrument also includes an inner core.

Further, the applicator includes an applicator head and a wick, one end of the wick contacting the liquid in the liquid storage element and the other end contacting the applicator head, the liquid in the liquid storage element being transferred to the applicator head through the wick.

Further, the buffer chamber is of a labyrinth structure.

Further, the applicator includes an applicator tip and a wick, the other side of the liquid-conducting element contacting the applicator tip and the wick contacting the liquid in the liquid-storing element at one end and the other end, the liquid in the liquid-storing element being transferred to the applicator tip through the liquid-conducting element and the wick.

Further, the liquid storage element is filled with a porous liquid storage medium.

Through setting up the clearance between the inner wall of drain component and stock solution component, the gas-liquid exchange of scribbling the instrument can be controlled to the drain component to satisfy the performance requirement of different scribbling instruments. Because the liquid guide element is internally provided with the three-dimensional network structure, a large number of mutually communicated capillary channels are formed in the liquid guide element, and the capillary channels are beneficial to the rapid and stable conduction of liquid in the liquid guide element, so that the sensitive and rapid gas-liquid exchange is realized, and the painting is smooth and stable. The liquid guide element made of bonded fibers has higher strength, can be conveniently assembled in a painting tool, is easy to realize assembly automation, improves the manufacturing efficiency, saves the cost, and is particularly suitable for manufacturing painting tools with large consumption, such as marking pens, white board pens, eyeliners, sign pens and the like.

In order to make the aforementioned and other objects of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.

FIG. 1a is a schematic longitudinal cross-sectional view of a first disclosed embodiment of a writing instrument;

FIG. 1b is a schematic cross-sectional view of drainage element 200 of FIG. 1 a;

FIG. 1c is an enlarged cross-sectional view of the bicomponent fiber of FIG. 1b in a concentric sheath-core configuration;

FIG. 1d is an enlarged cross-sectional view of the bicomponent fiber of FIG. 1b in an eccentric sheath-core configuration;

FIG. 1e is an enlarged cross-sectional view of the bicomponent fiber of FIG. 1b in a side-by-side configuration;

FIG. 2 is a schematic longitudinal cross-sectional view of a second disclosed embodiment of a coating tool;

FIG. 3 is a schematic longitudinal cross-sectional view of a third disclosed embodiment of a coating tool;

FIG. 4a is a schematic longitudinal cross-sectional view of a fourth disclosed embodiment of a coating tool;

FIG. 4b is a schematic longitudinal cross-sectional view of a writing instrument according to a variation of the fourth embodiment of the present disclosure;

FIG. 4c is a schematic longitudinal cross-sectional view of a writing instrument according to another modification of the fourth embodiment of the present disclosure.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the present invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, the same units/elements are denoted by the same reference numerals.

Unless otherwise defined, terms used herein, including technical and scientific terms, have the ordinary meaning as understood by those skilled in the art. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.

First embodiment

FIG. 1a is a schematic longitudinal cross-sectional view of a first disclosed embodiment of a writing instrument; FIG. 1b is a schematic cross-sectional view of drainage element 200 of FIG. 1 a.

As shown in FIGS. 1a and 1b, the liquid guiding element 200 is used for the coating tool 1, the liquid guiding element 200 has a three-dimensional network structure and can absorb and release liquid, one side of the liquid guiding element 200 is contacted with the liquid in the liquid storage element 100 of the coating tool 1, a gap D is arranged between the liquid guiding element 200 and the inner wall of the liquid storage element 100, the maximum inscribed circle diameter of the gap D is 0.03mm to 0.25mm, and the liquid guiding element 200 controls the gas-liquid exchange of the coating tool 1.

By setting the gap between the liquid guiding element 200 and the inner wall of the liquid storage element 100, the liquid guiding element 200 can control the gas-liquid exchange of the painting tool, thereby meeting the performance requirements of different painting tools. Because the liquid guide element 200 has a three-dimensional network structure inside, a large number of mutually communicated capillary channels are formed in the liquid guide element 200, and the capillary channels are beneficial to the rapid and stable conduction of liquid in the liquid guide element, so that the sensitive and rapid gas-liquid exchange is realized, and the painting is smooth and stable.

The fibers forming the fluid conducting member 200 may be bonded by an adhesive to form the fluid conducting member 200, or the fluid conducting member 200 may be formed by thermal bonding.

The liquid guide element 200 made of bonded fibers has high strength, can be conveniently assembled in a painting tool, is easy to realize assembly automation, improves the manufacturing efficiency, saves the cost, and is particularly suitable for manufacturing painting tools with large consumption, such as marking pens, white board pens, eyeliners, sign pens and the like.

< Density of liquid-conducting element >

The density of the wicking element 200 of this embodiment is 0.1 g/cm³To 0.35 g/cm³Preferably 0.15 g/cm³To 0.25 g/cm³. When the density is less than 0.1 g/cm³In this case, the strength of the liquid guide member 200 is insufficient, and the assembly is not easy. When the density is more than 0.35 g/cm³In time, the liquid conduction velocity is slow, affecting the writing performance.

< thickness of liquid-conducting element >

The thickness of fluid conducting element 200 refers to the shortest distance that fluid will travel from one side of fluid conducting element 200 to the other. The thickness of wicking element 200 is in millimeters, abbreviated to mm. The thickness of the drainage element 200 is 0.3mm to 3mm, such as 0.3mm, 0.8mm, 1.2mm, 2mm, 3 mm. When the thickness of the liquid guiding member 200 is less than 0.3mm, the strength of the liquid guiding member 200 is insufficient and it is not easy to mount. When the thickness of the liquid guiding member 200 is greater than 3mm, the amount of liquid absorbed by the liquid guiding member 200 is excessive, which affects the utilization efficiency of the liquid.

< shape of liquid-conducting element >

Liquid conducting element 200 is generally configured in the form of a sheet. The design of the fluid-conducting element 200 can be circular, elliptical, circular, elliptical-circular, or other desired shapes, depending on the configuration and shape of the applicator 1. Drainage element 200 may be provided with a drainage element 200 through-hole 230 that extends through drainage element 200.

< fibers >

The fibers from which the wicking element 200 is made may be glass fibers, ceramic fibers, or polymer fibers. The fibers may be filaments or staple fibers. Ceramic fibers and glass fibers are brittle and the resulting wicking element 200 is susceptible to chipping or chipping, preferably polymeric fibers, and most preferably bicomponent polymeric fibers in a sheath-core or side-by-side configuration.

FIG. 1c is an enlarged cross-sectional view of the bicomponent fiber of FIG. 1b in a concentric sheath-core configuration; FIG. 1d is an enlarged cross-sectional view of the bicomponent fiber of FIG. 1b in an eccentric sheath-core configuration; FIG. 1e is an enlarged cross-sectional view of the bicomponent fiber of FIG. 1b in a side-by-side configuration.

Fig. 1c and 1d show a bicomponent fiber 2 of sheath-core structure comprising a sheath 21 and a core 22. The skin layer 21 and the core layer 22 may be of a concentric structure as shown in fig. 1c, or may be of an eccentric structure as shown in fig. 1 d. The liquid guiding member 200 made of the bicomponent fiber 2 having the concentric structure is rigid, and the liquid guiding member 200 made of the bicomponent fiber 2 having the eccentric structure is elastic.

The bicomponent fibre 2 may also be a side by side structure of two components as shown in figure 1 e.

Drainage element 200 of this embodiment is preferably made of bicomponent fibers 2 having a sheath layer and a core layer that are thermally bonded. The sheath of the bicomponent fiber 2 may be polyolefin such as polyethylene and polypropylene, or may be common polymer such as polyamide, polyester or low melting point copolyester. The core layer can be polypropylene, polyamide, polyethylene terephthalate, PET for short and other polymers.

The bicomponent fibers 2 used to make the drainage element 200 of the present invention have a denier of from 1 to 30, preferably from 1.5 to 10. Bicomponent fibers 2 having a sheath-core structure of less than 1 denier are difficult and costly to manufacture. Wicking elements 200 made with fibers above 30 denier have insufficient capillary force and poor wicking. Bicomponent sheath-core fiber 2 having a denier of 1 to 30 is easy to manufacture for drainage element 200, and bicomponent sheath-core fiber 2 having a denier of 1.5 to 10 is particularly suitable and is relatively low cost.

< liquid storage element >

The liquid storage element 100 is a part for storing liquid in the applicator 1, and the liquid storage element 100 is filled with the application liquid. The liquid storage element 100 may be formed separately or may be integrated with the writing instrument 1. The reservoir 100 has a chamber, which may be a cavity made of plastic or metal, that may be filled with a porous reservoir medium 126. The liquid in the liquid storage element 100 is conducted to the applicator write head 50 through the liquid directing element 200 or the wick 31. When the liquid storage device is used, as the liquid in the liquid storage element 100 is led out, the external air can enter the liquid storage element 100 through the gap D between the liquid guide element 200 and the inner wall of the liquid storage element 100.

< writing Instrument >

The painting instrument 1 according to the present invention is broadly intended as a writing and painting instrument used in the fields of office and cosmetics, etc., such as a whiteboard pen, a marker pen, a sign pen, an eyeliner, a lip liner, etc.

The scribbling tool comprises a liquid storage element 100 and the liquid guiding element 200, wherein one side of the liquid guiding element 200 is in contact with liquid in the liquid storage element 100, a gap D is formed between the liquid guiding element 200 and the inner wall of the liquid storage element 100, the maximum inscribed circle diameter of the gap D is 0.03mm to 0.25mm, and the liquid guiding element 200 controls gas-liquid exchange of the scribbling tool 1.

The applicator 1 further includes an applicator tip 50, with the other side of the fluid-conducting element 200 contacting the applicator tip 50, and the fluid in the fluid reservoir 100 being conducted to the applicator tip 50 through the fluid-conducting element 200.

The applicator 1 further includes an applicator housing 60 and an applicator head carrier 10 disposed at a forward end of the applicator housing 60, the applicator head carrier 10 supporting the applicator head 50. The head mount 10 is provided with air vents 12 to supply air to the reservoir 100 during application. The head mount 10 can also be provided with a buffer chamber 11, and the buffer chamber 11 is a cavity formed between the head mount 10 and the head 50, so that the coating and writing tool 1 has better leakage resistance when the external temperature and pressure change. Specifically, when the writing instrument 1 is transported or in an extreme environment, it is possible to cause the liquid in the liquid storage element 100 to leak through the gap D as the outside temperature and pressure change, and the buffer chamber 11 is provided so that the leaked liquid is temporarily stored in the buffer chamber 11, thereby avoiding the occurrence of leakage to the outside as much as possible.

The applicator 1 can also include an inner core 70, which inner core 70 can better secure the fluid directing element 200 and the applicator head 50. In the present embodiment, fluid conducting element 200 is provided with a fluid conducting element 200 through hole 230 penetrating fluid conducting element 200, and fluid conducting element 200 through hole 230 is preferably provided coaxially with the central axis of fluid conducting element 200. The liquid guide member 200 is inserted into the through hole 230 of the inner core 70, thereby being fixed to the outer circumferential wall of the inner core 70. The inner core 70 abuts or is inserted into the inner core 70 and is fixed by the inner core 70.

In this embodiment, the reservoir component 100 is integrally formed with the applicator housing 60 of the applicator 1. The inner wall of the applicator housing 60 of the applicator 1 also serves as the inner wall of the reservoir 100, with a gap D provided between the fluid-directing member 200 and the inner wall of the reservoir 100. The size of the gap D in the present invention is expressed by the maximum inscribed circle diameter of the gap D, and in the present embodiment, the maximum inscribed circle diameter of the gap D is between 0.03mm and 0.25mm, such as 0.03mm, 0.05mm, 0.08mm, 0.1mm, 0.15mm, 0.2mm, 0.25mm, and preferably between 0.08 and 0.15 mm.

Reinforcing ribs (not shown) protruding toward the central axis of the writing instrument 1 may also be disposed on the inner wall of the liquid storage element 100 at intervals, and the reinforcing ribs may be axially disposed strip-shaped reinforcing ribs, so that when the liquid storage element 100 abuts against the reinforcing ribs, a gap D is formed between the inner wall of the liquid storage element 100 and the liquid guide element 200.

When the liquid content in the liquid guiding member 200 increases, the gap D is filled with liquid. During writing, the liquid in the liquid storage element 100 is conducted to the writing head 50 through the liquid guiding element 200, the negative pressure in the liquid storage element 100 is increased, so that the content of the liquid in the liquid guiding element 200 is reduced,the liquid in the gap D is partially absorbed by the liquid guiding member 200, and the external air can enter the liquid storing member 100 through the gap D. When the maximum inscribed circle diameter of the gap D is large, the small negative pressure in the liquid storage element 100 can make the external air supplement to enter the liquid storage element 100, and is suitable for the painting tool 1 with a large liquid outlet amount. When the maximum inscribed circle diameter of the gap D is small, the large negative pressure in the liquid storage element 100 can make the external air supplement to enter the liquid storage element 100, and is suitable for the applicator 1 with a small liquid discharge amount. In the present embodiment, it is preferable that the maximum inscribed circle diameter of the gap D is 0.1mm, and it is preferable that the thickness of the liquid guiding member 200 is 1.2mm and the density is 0.2 g/cm³。

In operation of the applicator 1, fluid is directed from the head 50. The liquid consumed by the applicator tip 50 is replenished from the reservoir element 100 through the wicking element 200. Since the liquid guiding element 200 has a three-dimensional network structure with a large number of mutually connected capillary pores, the liquid in the liquid storage element 100 can be rapidly conducted to the writing tip 50 through the liquid guiding element 200, so that the writing tool 1 can continuously and stably release the liquid.

Second embodiment

FIG. 2 is a schematic longitudinal cross-sectional view of a second embodiment of the disclosed coating tool. The structure of this embodiment is similar to that of the first embodiment, and the same parts as those of the first embodiment are not described again in the description of this embodiment.

In this embodiment, the writing tool includes a liquid storage element 100 and a liquid guiding element 200, one side of the liquid guiding element 200 contacts the liquid in the liquid storage element 100, a gap D is provided between the liquid guiding element 200 and the inner wall of the liquid storage element 100, the maximum inscribed circle diameter of the gap D is between 0.03mm and 0.25mm, and the liquid guiding element 200 controls the gas-liquid exchange of the writing tool 1.

The applicator 1 further includes an applicator tip 50 and an ink wick 31, the wick 31 contacting the liquid in the liquid storage element 100 at one end and the applicator tip 50 at the other end, the liquid in the liquid storage element 100 being transferred to the applicator tip 50 through the wick 31.

Specifically, the wick 31 has one end inserted into the applicator tip 50 and the other end inserted into the reservoir member 100 to contact the liquid.

One side of the fluid-directing element 200 is in contact with the fluid in the fluid storage element 100. In this embodiment, the inner wall of the applicator housing 60 of the applicator 1 also serves as the inner wall of the reservoir member 100, and a gap D is provided between the fluid-conducting member 200 and the inner wall of the reservoir member 100.

Preferably, drainage element 200 has a thickness of 0.5 to 1mm and a density of 0.3 to 0.35 g/cm³And the maximum inscribed circle diameter of the gap D is 0.05 to 0.08 mm.

The applicator 1 may also include a support tube 13. In this embodiment, the water guide core 31 may be supported and fixed by the support tube 13 and the inner core 70, and the liquid guide member 200 may be supported and fixed by the support tube 13. Specifically, the water diversion core 31 passes through the support pipe 13 to contact the inner core 70, one or more liquid guide ports 131 are formed in the pipe wall of the part of the support pipe 13 inserted into the liquid storage element 100, and the liquid guide element 200 is sleeved on the outer peripheral wall of the support pipe 13 and is supported and fixed by the support pipe 13. One end of the support tube 13 may also be secured to the inner core 70.

The support tube 13 may also be composed of two support tubes, one support tube is fixed on the inner core 70, the other support tube 13 is sleeved on the through hole 230 of the liquid guiding element 200, and the gap between the two support tubes is used for the liquid guiding port 131.

The applicator 1 may also be provided with a perforated baffle (not shown) to better secure the fluid-directing element 200. The contact surface of the hollow baffle and the liquid guide element 200 can be set to be the same as the contact surface of the liquid guide element 200 in shape, and the holes in the hollow baffle can ensure that the gas on the contact surface of the liquid guide element 200 and the hollow baffle cannot be blocked.

The applicator 1 may also be provided with a support piece or a support step (not shown) on the inner wall of the applicator housing 60 to support the stationary liquid guide member 200. The support pieces or support steps are arranged at intervals in the circumferential direction of the inner wall of the painting tool housing 60 to avoid blocking a gap D between the liquid guide element 200 and the inner wall of the liquid storage element 100.

A labyrinth-shaped buffer chamber 11 may be provided in the head carrier 10 to increase the leakage resistance of the writing instrument 1 in abnormal situations.

The arrangement mode in the embodiment is suitable for the painting and writing tools 1 with small liquid output quantity, such as sign pens and highlighters. In use, liquid is conducted from the reservoir 100 to the applicator tip 50 through the wick 31, and the remaining principles of operation are similar to those of embodiment 1.

Third embodiment

FIG. 3 is a schematic longitudinal cross-sectional view of a third disclosed embodiment of a coating tool; the structure of this embodiment is similar to that of the first embodiment, and the same parts as those of the first embodiment are not described again in the description of this embodiment.

The applicator 1 further includes an applicator tip 50 and an ink wick 31, the other side of the fluid-conducting element 200 contacting the applicator tip 50 and the ink wick 31 contacting the fluid in the liquid reservoir 100 at one end and the applicator tip 50 at the other end, the fluid in the liquid reservoir 100 being transferred to the applicator tip 50 through the fluid-conducting element 200 and the ink wick 31.

The applicator 1 includes a wick 31, one end of the wick 31 contacting the applicator tip 50 and the other end inserted into the reservoir 100 to contact the liquid and held by the inner core 70. The wicking element 200 is in contact with the liquid in the reservoir element 100 on one side and the applicator head 50 on the other side. Liquid can be conducted from the liquid storage element 100 to the applicator tip 50 through both the wicking element 200 and the wick 31, making the wicking more reliable.

In the present embodiment, a support pipe 13 may be provided to support the water guide core 31.

It is preferable that the liquid guiding member 200 has a thickness of 0.8 to 1.2mm, a density of 0.15 to 0.25 g/cm 3, and a gap D of 0.08 to 0.2mm, and this arrangement is suitable for a writing instrument 1 having a large liquid discharge amount, such as a whiteboard pen, a marker pen, an eyeliner, a lip liner, or the like. The higher the liquid viscosity, the greater the liquid output requirement, and the larger the gap D needs to be adopted. If the thickness of the liquid guiding member 200 is increased to 2mm or 3mm, more liquid can be stored in the liquid guiding member 200, which is advantageous for the writing head 50 to continuously take liquid from the liquid guiding member 200 when the pen head is writing upward.

Fourth embodiment

FIG. 4a is a schematic longitudinal cross-sectional view of a fourth disclosed embodiment of a coating tool; FIG. 4b is a schematic longitudinal cross-sectional view of a writing instrument according to a variation of the fourth embodiment of the present disclosure; FIG. 4c is a schematic longitudinal cross-sectional view of a writing instrument according to another modification of the fourth embodiment of the present disclosure.

As shown in fig. 4a, 4b, 4 c. The structure of this embodiment is similar to that of the first embodiment, and the same parts as those of the first embodiment are not described again in the description of this embodiment.

In this embodiment, the writing tool includes the liquid storage element 100 and the liquid guiding element 200, one side of the liquid guiding element 200 contacts the liquid in the liquid storage element 100, a gap D is provided between the liquid guiding element 200 and the inner wall of the liquid storage element 100, the maximum inscribed circle diameter of the gap D is between 0.03mm and 0.25mm, and the liquid guiding element 200 controls the gas-liquid exchange of the writing tool 1.

In this embodiment, the reservoir member 100 is filled with a porous reservoir medium 126. The porous reservoir medium 126 is adapted to be filled with a liquid containing particles, dispersing the particles in the porous reservoir medium 126 and preventing the particles from settling out of the liquid. Preferably, drainage member 200 has a thickness of 0.8 to 1.2mm and a density of 0.1 to 0.2 g/cm³And the gap D is made 0.08 to 0.15mm, and if the liquid viscosity is high, the gap D may be set to 0.2mm or 0.25 mm.

In the embodiment shown in FIG. 4a, the wicking element 200 may be provided without a through-hole in the wicking element 200, and the wicking element 200 and the reservoir medium 126 may be supported and secured by the inner core 70.

In a variant embodiment, as shown in FIG. 4b, one end of the applicator tip 50 may be inserted through the wicking element 200 and into the porous reservoir medium 126 to enhance the wicking action.

In an alternative embodiment, as shown in FIG. 4c, one end of the applicator tip 50 may be inserted through the wicking element 200 and into the porous reservoir medium 126 to enhance wicking, while the other end of the porous reservoir medium 126 is inserted into the core 70 to support and hold the porous reservoir medium 126.

In summary, the liquid guide element of the present invention is made of bonded fibers, and can be widely applied to various writing tools. The liquid guide element has better strength and is suitable for automatic assembly. The liquid guide element is internally provided with a large number of mutually communicated capillary channels, which is beneficial to the rapid conduction of liquid in the liquid guide element, thereby realizing the sensitive and rapid gas-liquid exchange and leading the painting to be smooth and stable. Through setting up the clearance between drain component and the shell inner wall, the gas-liquid exchange of scribbling the instrument can be controlled to the drain component to satisfy the performance requirement of different scribbling instruments.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes be made by those skilled in the art without departing from the spirit and technical spirit of the present invention, and be covered by the claims of the present invention.

Claims

1. A liquid guiding element for an applying tool (1), wherein the liquid guiding element (200) is internally provided with a three-dimensional network structure and can absorb and release liquid, one side of the liquid guiding element (200) is in contact with the liquid in a liquid storage element (100) of the applying tool (1), a gap D is arranged between the liquid guiding element (200) and the inner wall of the liquid storage element (100), the maximum inscribed circle diameter of the gap D is 0.03mm to 0.25mm, and the liquid guiding element (200) controls the gas-liquid exchange of the applying tool (1).

2. The drainage element of claim 1, wherein the drainage element (200) is made of fiber bonding.

3. The drainage element of claim 1, wherein the drainage element (200) has a density of 0.1 g/cm³To 0.35 g/cm³。

4. The drainage element of claim 1, wherein the drainage element (200) has a thickness of 0.3mm to 3 mm.

5. The drainage element of claim 4 wherein said fibers are bicomponent fibers (2) having a sheath-core or side-by-side structure.

6. An applicator comprising a reservoir element (100) and a fluid-conducting element (200) according to any one of claims 1 to 5, one side of the fluid-conducting element (200) contacting the fluid in the reservoir element (100), a gap D being provided between the fluid-conducting element (200) and the inner wall of the reservoir element (100), the maximum inscribed diameter of the gap D being between 0.03mm and 0.25mm, the fluid-conducting element (200) controlling the gas-liquid exchange of the applicator (1).

7. The applicator according to claim 6, wherein the applicator (1) further comprises an applicator tip (50), the other side of the liquid-conducting element (200) contacting the applicator tip (50), the liquid in the liquid-storing element (100) being conducted to the applicator tip (50) via the liquid-conducting element (200).

8. The applicator according to claim 7, wherein the applicator (1) is provided with a buffer chamber (11).

9. The applicator of claim 6, wherein the applicator (1) further comprises an inner core (70).

10. The applicator of claim 6, wherein the applicator (1) further comprises an applicator tip (50) and a wicking core (31), the wicking core (31) contacting the liquid in the reservoir element (100) at one end and the applicator tip (50) at the other end, the liquid in the reservoir element (100) being transferred to the applicator tip (50) through the wicking core (31).

11. The marking instrument according to claim 8, characterized in that the buffer chamber (11) is of a labyrinth construction.

12. The applicator according to claim 6, wherein the applicator (1) further comprises an applicator tip (50) and a water-wicking core (31), the other side of the liquid-wicking element (200) contacting the applicator tip (50) and the water-wicking core (31) contacting the liquid in the liquid reservoir element (100) at one end and the applicator tip (50) at the other end, the liquid in the liquid reservoir element (100) being transferred to the applicator tip (50) through the liquid-wicking element (200) and the water-wicking core (31).

13. The applicator according to claim 6, wherein the reservoir element (100) is filled with a porous reservoir medium (126).