JP2002264958A - Liquid detergent product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a product for liquid detergent capable of reliably discharging the liquid content of the predetermined quantity by one squeezing operation even when the liquid detergent contains surfactant and is highly viscous, for example, gel type liquid detergent. SOLUTION: In the product 1A for liquid detergent in which the liquid detergent containing surfactant is stored in a vessel, a cap 4 is fitted to a vessel mouth part 2, a spout 14 of the predetermined length pierces a top part of the cap, and the liquid detergent containing surfactant with the viscosity at 25 deg.C in a range of 200-1,000 mP.s is stored. The wall thickness of the vessel is set so that the liquid content of 0.1-4.5 g per discharging operation is discharged from the spout 14 at the top part of the cap when a barrel part of a vessel body is pressed by the force of 0.5-1.5 kg/3 cm<2> /second. In addition, the total liquid flow-in area of three communication holes 11 on the inner side of the spout 14 is set to be 12-100 mm<2> , and the minimum diameter D of a hole in the outer side of the spout 14 is set to be 2.5-4.0 mmϕ.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a liquid detergent product containing a liquid detergent containing a surfactant in a container.

[0002]

2. Description of the Related Art Various types of liquid detergent products, including kitchen detergents and other liquid detergents containing surfactants, are provided in containers. This type of liquid detergent product is poured onto a top surface. Attach a slide-type overcap with an outlet to the mouth of the container.When pouring out the contents, pull up the overcap and open it, then tilt the container or turn it upside down. Generally, a predetermined amount of the liquid content is discharged from the spout of the top surface of the cap by squeezing the portion (squeezing operation).
Usually, such a discharge type container is called a squeeze container.

In the case of a conventional liquid detergent product using such a squeeze container, there is no problem when the viscosity of the contained liquid detergent is low, but the viscosity of the liquid detergent is 2%.
When the pressure exceeds about 00 mPa · s, it becomes difficult to discharge a specified amount by a single pressing even if the body of the container is squeezed because of its viscous resistance. There was a problem that the body of the main body had to be pressed many times.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and is intended to provide a high-viscosity liquid detergent containing a surfactant such as a gel-type liquid detergent once. It is an object of the present invention to provide a liquid detergent product capable of reliably discharging a prescribed amount of a content liquid by the squeezing operation.

[0005]

Means for Solving the Problems The inventors of the present invention have conducted various experiments and studies in order to achieve the above-mentioned object. As a result, even with a high-viscosity liquid detergent containing a surfactant, By adopting such a configuration, it has been found that a specified amount of the content liquid can be reliably discharged by one squeezing operation without causing liquid clogging or the like.

That is, according to the present invention, in a liquid detergent product containing a liquid detergent containing a surfactant in a container, a cap is attached to a container opening, and a predetermined length penetrating the inside and outside of the top surface of the cap. Is formed, the viscosity of the liquid detergent containing the surfactant at 25 ° C. is in the range of 200 to 1000 mPa · s, and
0.5 to 1.5 kg / 3 cm ^{2 of the} body of the container body
/ G when pressed with a force of 0.1 to 4.5 g / time, more preferably 0.1 to 4.5 g / time from the spout on the top of the cap.
The thickness of the container is set so that 3.5 g of the content liquid is discharged.

[0007] The liquid inflow area on the inner side of the spout is 1
Preferably, the minimum hole diameter on the outside of the spout is in the range of 2.5 to 4.0 mm ² . When the liquid inflow area is smaller than 12 mm ² , the discharge amount of the content liquid becomes too small, and when it exceeds 100 mm ² , there is a possibility that a large amount of the content liquid flows out at once. Also,
When the minimum hole diameter on the outside of the spout is smaller than 2.5 mmφ, the discharge amount per operation is small, and the usability deteriorates. When it exceeds 4.0 mmφ, the flow rate of the discharged liquid detergent is large. It is too difficult to control the amount.

[0008] In the case of the above structure, even with a high-viscosity liquid detergent containing a surfactant, for example, a gel-type liquid detergent, a specified amount of the liquid content is reliably discharged by one squeezing operation. And excellent operability can be exhibited.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show a first embodiment of a liquid detergent product according to the present invention. 1 is an enlarged cross-sectional view of a cap portion attached to a container mouth, FIG. 2 is a view of a communication hole portion in FIG. 1 viewed from the direction of arrow A, FIG. 3 is a plan view of the cap portion, and FIG. It is a front view showing the whole composition of a medicine product.

The liquid detergent product 1A according to the first embodiment has a container body 3 having a mouth 2, a cap 4 screwed to the tip of the mouth 2, and a container 3 contained in the container body 3. And a liquid detergent C containing a surfactant. The cap 4 includes a cap body 5 screwed into the mouth 2 and a slide-type overcap 6 slidably mounted on the cap body 5 in the up-down direction. The cap body 5 is detachably attached to the mouth 2 of the container body 3 by screwing a screw portion 7 on the inner peripheral surface thereof into a screw portion 8 on the outer peripheral surface of the mouth portion 2.

At the center of the upper surface of the cap body 5, a cylindrical discharge cylinder 9 is provided upright, and the slide-type overcap 6 is attached to the tip of the discharge cylinder 9. On the other hand, a projecting plug 10
There are three fan-shaped communicating holes 11 formed at the bottom peripheral edge of the plug body 10 and open to the container mouth side at equal intervals in the circumferential direction. Communication hole 11
The liquid cleaning agent C in the container body 3 can be discharged to the discharge cylinder 9 through the container.

A guide inner cylinder 12 and a guide outer cylinder 13 are suspended from the slide-type overcap 6, and the discharge cylinder 9 of the cap body 5 is inserted into a gap between the two inner and outer guide cylinders. , The overcap 6 is slidably supported in the vertical direction. Stoppers 15 and 1 are respectively engaged with the upper end of the discharge cylinder 9 and the lower end of the guide outer cylinder 13.
6 are formed so that the overcap 6 does not fall off even when the overcap 6 is pulled up from the cap body 5.

A spout 14 is formed at the center of the upper surface of the overcap 6, so that the liquid detergent C contained in the container body 3 can be discharged to the outside through the spout 14. . The plug 10 is slightly longer than the discharge cylinder 9 and is formed in a tapered shape.
When the overcap 6 is slid toward the bottom of the discharge cylinder 9, the spout 14 is closed at the tip of the plug 10 so that the cap can be closed.

The guide inner cylinder 12 of the overcap 6
Is formed as a guide passage 17 connected to the spout 14. The inner peripheral wall of the guide passage 17 has an enlarged diameter cut diagonally so that the boundary with the guide passage 17 becomes an inclined portion 18. The part 19 is formed, and when the container body 3 is erected after pouring of the content liquid, the content liquid remaining in the spout 14 and the guide channel 17 flows down along the inclined part 18. Thus, the liquid is quickly returned to the container body 3 side so that the liquid drainage is improved.

[0015] Liquid detergent product 1 according to the first embodiment
A indicates that the minimum hole diameter D of the spout 14 (see FIG. 3, which corresponds to the “minimum hole diameter on the outside of the spout” in the claims) is 2.5 to 4.0 mmφ in the above structure. And the total liquid inflow area (corresponding to “the liquid inflow area on the inner side of the spout” in the claims) of the three fan-shaped communication holes 11 opened to the container mouth side.
It is set so as to be in the range of 100 mm ² , and the viscosity of the liquid detergent C contained in the container body 3 is adjusted to be in the range of 200 to 1000 mPa · s at 25 ° C. At this time, when the body of the container body 3 is pressed with a force of 0.5 to 1.5 kg / 3 cm ² / sec, 0.1 to 4.5 g of the content liquid is discharged from the spout 14 each time. It is preferable to set the thickness of the container such that

The surfactant contained in the liquid detergent C contained in the container body 3 includes, for example, alkylbenzene sulfonate, polyoxyalkylene alkyl or alkenyl ether sulfate, olefin sulfonate,
Alkane sulfonate, saturated or unsaturated carboxylate, polyoxyarylene alkyl or alkenyl ether carboxylate, α-sulfofatty acid salt or ester thereof, amino acid type surfactant, acyl amino acid type surfactant, unsaturated or Nonionic surfactants such as saturated fatty acid soaps, anionic surfactants such as phosphate ester surfactants, polyoxyalkyl or alkenyl ethers, higher fatty acid alkanolamides, sucrose fatty acid esters, fatty acid glycerin monoesters, alkylamine oxides, and Benign surfactants such as carbo or sulfobetaine type surfactants can be mentioned, and one or more surfactants selected from these can be used. Specific examples of the liquid detergent containing these surfactants include kitchen detergents, shampoos, and skin detergents (body soap, hand soap, cleansing, etc.).

Liquid detergent product 1 constructed as described above
A, in use, first pulls up the overcap 6 upward, pulls out the plug 10 from the spout 14 to open the spout 14, then grasps the body of the container body 3, and removes the entire container. The squeezing operation is performed by tilting the spout 14 toward the object and squeezing the body of the main body. In addition,
At this time, as described above, the minimum hole diameter D of the spout 14 is set in the range of 2.5 to 4.0 mmφ, and the total liquid inflow of the three fan-shaped communication holes 11 opened to the container mouth side. Since the area is set to be in the range of 12 to 100 mm ² , even the liquid detergent C having a high viscosity of 200 to 1000 mPa · s is quickly discharged from the spout 14, and the conventional high viscosity type This eliminates the difficulty of draining like a container.

When the dispensing of the liquid detergent C is completed, the container body 3 is erected, and the dispensing operation is completed. At that time, spout 1
The liquid detergent remaining in the portion 4 and the guide flow path 17 quickly flows down to the inside of the container main body along the inclined portion 18 of the enlarged diameter portion 19, and drops into the container main body 2 as droplets. Since the liquid cleaning agent is returned, the liquid is sufficiently drained, and the remaining liquid cleaning agent does not leak out from the spout 14 to the outside.

In the first embodiment, the plug 10
Since the spout 14 is closed by the
A flow passage for discharging the content liquid to the injection port 14 is provided with three communication holes 1.
Although the container is formed by dividing into one, the stopper is divided into three communication holes 11 when the container is closed by attaching a cap to the outer end of the spout 14 without using the plug 10. It is not necessary, and only one large-diameter flow passage without the plug 10 may be used.

FIGS. 5 and 6 show a second embodiment of the liquid detergent product according to the present invention. FIG. 5 is an enlarged sectional view of a cap portion attached to the container mouth, and FIG. 6 is a diagram of the communication hole portion in FIG. The liquid detergent product 1B according to the second embodiment has the same basic structure as that of the first embodiment. The only difference is that the enlarged diameter portion 19 provided with the inclined portion 18 formed on the peripheral wall is omitted, and the protection cylinder 20 is formed on the top surface of the cap body 5 and further outside the discharge cylinder portion 9. Therefore, except for the function of promoting the liquid drainage by the inclined portion 17, the other operations are the same as those of the first embodiment, and the same or equivalent parts are denoted by the same reference numerals and detailed description thereof will be omitted.

FIG. 7 shows a third embodiment of the liquid detergent product according to the present invention. The liquid detergent product 1C according to the third embodiment includes a container body (not shown) having a mouth portion 2, a cap 31 screwed to a tip portion of the mouth portion 2, and
And a liquid detergent containing a surfactant (not shown) housed in the container body. The cap 31 has a screw portion 32 on the inner peripheral surface thereof and a screw portion 8 on the outer peripheral surface of the mouth portion 2. It is detachably attached to the mouth 2 of the container body by screwing.

A protective wall 36 is formed on the top surface of the cap 31, and a spout 33 formed of a tapered hole located at the center of the cap 31 and having a diameter decreasing upward is formed. . The outer end of the spout 33 protrudes outward from the top surface by a predetermined height, and the inner end is hung down a predetermined length toward the inside of the cap. Cut down diagonally,
An inclined portion 35 is provided for promoting drainage.

Liquid detergent product 1 according to the third embodiment
C has a minimum hole diameter D (corresponding to “a minimum hole diameter outside the outlet” in the claims) of 2.5 to 4.0 mmφ in the above-described structure. And the lower end side opening cross-sectional area S of the spout 33
(Corresponding to “the liquid inflow area on the inner side of the spout” in the claims) is set to be in the range of 12 to 100 mm ² , and the viscosity of the liquid detergent contained in the container body 3 is set to 25 ° C. Is adjusted to be in the range of 200 to 1000 mPa · s. In this case,
The body of the container body 3 is 0.5 to 1.5 kg / 3 cm ² /
When pressed with a force of 2 seconds, the pressure from the spout 14 is 0.1 mm / time.
It is preferable to set the thickness of the container so that 1 to 4.5 g of the content liquid is discharged.

Liquid detergent product 1 constructed as described above
C is the minimum hole diameter D on the upper end side of the spout 33 from 2.5 to
Since the opening area S at the lower end side of the spout 33 is set to be in the range of 12 to 100 mm ² , as in the case of the first embodiment described above, Even a liquid detergent having a high viscosity is quickly discharged, so that it is not difficult to discharge the liquid cleaning agent unlike a conventional high-viscosity type container.

Also, Since the tip end surface of the hanging part 34 of the spout 33 is formed as the inclined part 35, when the liquid detergent is poured out and the container body 3 is erected as in the case of the first embodiment described above. And the liquid detergent remaining in the spout 33 does not leak to the outside.

FIG. 8 shows a fourth embodiment of the liquid detergent product according to the present invention. The liquid detergent product 1D according to the fourth embodiment shows an example in which a so-called three-point hinge cap is used as a cap, and a spout 52 is integrally formed on a top surface of a cap body 51.
An openable and closable lid 54 connected to the cap body 52 by a hinge 53 is integrally formed on the upper outside of the spout 52, and fits into the spout 52 at the center of the lower surface of the lid 54. A plug body 55 that is plugged with is formed to hang down.

Liquid detergent product 1 according to a fourth embodiment
In the above-described structure, D is the minimum hole diameter D of the spout 52 (corresponding to the “minimum hole diameter on the outside of the spout” in the claims) in the range of 2.5 to 4.0 mmφ. The opening cross-sectional area S (corresponding to the “liquid inflow area on the inside of the spout” in the claims) of the guide channel 56 on the lower side of the spout 52 is set to be in the range of 12 to 100 mm ² , Further, the viscosity of the liquid detergent contained in the container body (not shown) is set to 200 to 100 at 25 ° C.
It is adjusted to be in the range of 0 mPa · s.
At this time, the body of the container body was 0.5 to 1.5 kg /
When pressed with a force of 3 cm ² / sec, 1
It is preferable to set the thickness of the container so that 0.1 to 4.5 g of the content liquid is discharged per time.

Liquid detergent product 1 constructed as described above
D is the minimum hole diameter D of the spout 52 from 2.5 to 4.0 mm.
In addition to the range of φ, the opening area S of the guide channel 56 on the lower side of the spout 52 is set to be in the range of 12 to 100 mm ^2. Similarly, even a high-viscosity liquid cleaning agent is quickly discharged, so that it is not difficult to discharge the liquid cleaning agent unlike a conventional high-viscosity type container.

Also, Guide channel 56 on the lower side of outlet 52
Since the lower end surface of the container is formed as the inclined portion 57, as in the case of the above-described first embodiment, the drainage of the liquid when the dispensing of the liquid detergent is completed and the container main body is erected is improved.

[Experimental Example 1] The liquid cleaning product according to the first embodiment shown in FIG. 1 was used, and the minimum diameter D of the spout 14 and the fan-shaped three pieces opened to the container mouth side were used. The case where the total liquid inflow area of the communication hole 11 is set so as to fall within the numerical range of the present invention (the present invention product) and the case where it is set so as to be out of the numerical range of the present invention (the conventional product 1, the conventional product) 2)
For each of the above, a usability evaluation test was performed. Table 1 shows the results. In addition, the viscosity of the surfactant-containing liquid detergent contained in the container body is 460 mPa · s at 25 ° C.

In the test method, a liquid detergent (25 ° C.) is contained in a container body having a body thickness of 0.5 mm, and the container body is tilted downward at an angle of 30 degrees with respect to a horizontal plane, In this state, the body of the container body is 1.5 kg / 3 cm.
Pressing (squeezing operation) was performed with a force of ² / sec, and the discharge amount of the liquid cleaning agent discharged from the outlet of the cap at this time was measured. Usability was evaluated as ○ when the average amount discharged per squeeze operation was about 1 g, and as × when the average discharge amount was not more than 1 g.

[0032]

[Table 1]

[Experimental Example 2] Table 2 shows the relationship between the viscosity of the liquid detergent and the discharge amount (No. 1). This experimental example 2 is shown in FIG.
In the embodiment, the minimum hole diameter D of the spout 14 is
This is an example in which the total liquid inflow area of 3.0 mmφ, three fan-shaped communication holes 11 opened to the container mouth side is 50 mm ² .

[0034]

[Table 2]

[Experimental Example 3] Table 3 shows the relationship between the viscosity of the liquid detergent and the discharge amount (No. 2). This experimental example 3 is shown in FIG.
In the embodiment of the present invention, an example is shown in which the plug 10 is removed and one large-diameter flow hole is formed without being divided into three communication holes 11. = 3.0 mmφ, and the total liquid inflow area on the inner side of the outlet 14 is 96 mm ² .

[0036]

[Table 3]

[Experimental Example 4] Table 4 and FIG.
4 shows the relationship between the minimum hole diameter D and the total liquid inflow area of the communication holes 11 and the discharge amount (No. 1). This experimental example 4 is shown in FIG.
In the embodiment, the viscosity is 460 mPa · s (25
(C) in which a liquid cleaning agent is used.

[0038]

[Table 4]

[Experimental Example 5] Table 5 and FIG. 10 show the relationship between the minimum hole diameter D of the spout 14 and the liquid inflow area on the inner side of the spout and the discharge amount (No. 2). This experimental example 5 is shown in FIG.
In the embodiment, the viscosity is 160 mPa · s (25
(C) in which a liquid cleaning agent is used.

[0040]

[Table 5]

[0041]

As described above, according to the liquid detergent product of the present invention, even if it is a high-viscosity liquid detergent containing a surfactant, for example, a gel type liquid detergent, one squeeze It is possible to reliably discharge a prescribed amount of the liquid content by operation, and to provide a liquid detergent product excellent in handleability despite being a high-viscosity liquid detergent.

[Brief description of the drawings]

FIG. 1 is an enlarged sectional view of a cap portion of a liquid detergent product according to a first embodiment.

FIG. 2 is a view of a communication hole portion in FIG.

FIG. 3 is a plan view of a cap portion.

FIG. 4 is a front view showing the overall configuration of the liquid detergent product according to the first embodiment.

FIG. 5 is an enlarged sectional view of a cap portion of a liquid detergent product according to a second embodiment.

6 is a view of the communication hole portion in FIG. 5 as viewed from the direction of arrow A.

FIG. 7 is an enlarged cross-sectional view of a cap portion of a liquid detergent product according to a third embodiment.

FIG. 8 is an enlarged sectional view of a cap portion of a liquid detergent product according to a fourth embodiment.

FIG. 9 is a graph showing the relationship (part 1) between the minimum hole diameter D and the total liquid inflow area and discharge amount.

FIG. 10 is a graph showing a relationship (part 2) between the minimum hole diameter D and the total liquid inflow area and discharge amount.

[Explanation of symbols]

 Reference Signs List 1A to 1D Liquid detergent product 2 Container mouth 3 Container main body 4 Cap 5 Cap main body 6 Overcap 9 Discharge cylindrical part 10 Plug body 11 Communication hole 12 Guide inner cylinder 13 Guide outer cylinder 14 Spout 17 Guide channel 18 Incline Part 19 Enlarged diameter part 20 Protective cylinder 31 Cap 33 Outlet 34 Hanging part 35 Inclined part 51 Cap body 52 Injection 53 Hinge 54 Cover part 55 Plug body 56 Guide flow path 57 Inclined part C Liquid detergent D Outside of the outlet Minimum hole diameter S Liquid inflow area inside the outlet

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E084 AA04 AA12 AB01 BA02 CA01 CB02 DA01 DB12 FA09 FB01 GA04 GB04 KB01 LA14 LB02 LB07 LD06 LD17 4H003 BA12 DA17 FA30

Claims (2)

[Claims] 1. A liquid detergent product containing a liquid detergent containing a surfactant in a container, wherein a cap is attached to a mouth of the container, and a spout that penetrates inside and outside is formed on a top surface of the cap. And the viscosity at 25 ° C. of the liquid detergent containing the surfactant is 200 to 1000 mPa · s.
, And the body of the container body is 0.5 to 1.5
The thickness of the container is set so that the content liquid of 0.1 to 4.5 g is discharged from the spout of the top surface of the cap at a time when pressed with a force of Kg / 3 cm ² / sec. Liquid detergent products. 2. The liquid inflow area on the inner side of the spout is 12 to
100 mm ² , the minimum hole diameter outside the spout is 2.5
2. The range of about 4.0 mm.phi.
A liquid cleaning product as described.