JP2018120033A - Clay for workmanship - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clay having characteristics of being not frozen under a low-temperature environment, being softened to such an extent that the clay can be formed to any shape when so heated as to be warmed with hands, giving a dry and smooth texture without getting gooey, exhibiting extensibility, and sustaining the formed shape under a room-temperature environment.SOLUTION: A clay for workmanship is created by mixing an aggregate, a paste, calcium chloride, an adhesion inhibition component, and water all together. The aggregate contains talc. The paste contains one or more ingredients selected from among CMC, methyl cellulose, corn starch, mannan powder, and polysaccharide. The adhesion inhibition component contains one or more ingredients selected from among silicone oil, glycerin, propylene glycol, and sodium hyaluronate.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a clay for work used in a kindergarten, a nursery school, an elementary school or the like. Specifically, it does not freeze even in a low-temperature environment such as a freezer, it softens to the extent that it can be shaped by heating to the extent that it is held by hand, does not become sticky, has a smooth feel, is extensible, has a desired shape It has excellent characteristics that it can be modeled well, the shaped shape can be maintained in a room temperature environment, and then softened to the extent that it can be modeled by reheating that is held by hand and then can be modeled again. Related to clay.

In kindergartens, nursery schools, elementary schools, etc., clays having characteristics such as easy to form and easy to form are desired as clay used as teaching materials for handicrafts.
For example, in Japanese Patent Application Laid-Open No. 2004-102163 (Patent Document 1), it is harmless even if put in the mouth by mistake, there is no odor, non-adhesion to the hand, extensibility, shape retention, workability, modeling A clay composition having excellent properties is disclosed.
Japanese Patent Application Laid-Open No. 10-020768 (Patent Document 2) has moderate hardness, ease of elongation, ease of creation such as moderate brittleness, and long time after drying. Lightweight clays are disclosed that can remain robust for a period of time.

JP 2004-102163 A Japanese Patent Laid-Open No. 10-020768

  Clay with excellent properties is desired. For example, clay with properties such as non-stickiness, smooth touch, extensibility, good shaping of desired shape, and retention of shape for a long time after shaping is desired. Yes.

  The present invention does not freeze even in a low-temperature environment such as a freezer, softens to the extent that it can be shaped by heating to the extent that it is held by hand, does not become sticky, has a smooth feel, has extensibility, and has a desired shape Clay with the characteristics that it can be shaped easily, can be maintained in a room temperature environment, and then softened to the extent that it can be shaped by reheating to the extent that it can be held by hand and then shaped again The purpose is to provide.

The present invention can be described as [1] to [6] below.
[1] Configuration 1
It is made by kneading aggregate, glue, calcium chloride, adhesion-suppressing ingredients, and water.
The aggregate includes talc;
The paste includes one or more selected from CMC, methylcellulose, corn starch, mannan powder, polysaccharides,
The adhesion suppressing component includes one or more selected from silicone oil, glycerin, propylene glycol, and sodium hyaluronate.
A clay for work.
[2] Configuration 2
In configuration 1,
The aggregate further includes one or more selected from calcium sulfate, sodium sulfate, magnesium sulfate, silicon dioxide, magnesium carbonate, eggshell,
A clay for work.
The amount of talc in the entire aggregate is, for example, 60% by mass or more, preferably 70% by mass or more, and more preferably 80% by mass or more when the aggregate is 100% by mass. For example, the aggregate can be composed of 20 parts by mass of talc and 4 parts by mass of calcium sulfate.
[3] Configuration 3
In Configuration 1 or Configuration 2,
The paste (thickener) essentially contains CMC,
A clay for work.
The amount of CMC in the entire sizing agent is, for example, preferably 75% by mass or more, and more preferably 85% by mass or more when the sizing agent is 100% by mass.
[4] Configuration 4
In any of Configuration 1 to Configuration 3,
The adhesion suppressing component (release component) essentially contains silicone oil,
A clay for work.
The amount of silicone oil in the entire adhesion suppressing component is, for example, preferably 80% by mass or more, and more preferably 90% by mass or more when the adhesion suppressing component is 100% by mass.
[5] Configuration 5
In configuration 4,
The silicone oil is dimethylpolysiloxane;
A clay for work.
[6] Configuration 6
In any of Configuration 1 to Configuration 5,
The aggregate is 12 to 36% by mass, the glue is 4 to 12% by mass, the calcium chloride is 9 to 27% by mass, the adhesion suppressing component is 0.1 to 2% by mass, and the water is 40 to 60% by mass. %, And the total is 100% by mass.
A clay for work.
For example, 20 g of talc and 4 g of calcium sulfate as an aggregate, 8 g of sodium carboxymethylcellulose (CMC) as a paste, 18 g of calcium chloride, 0.5 g of dimethylpolysiloxane as an adhesion suppressing component, and 49.5 g of water.

  The clay of composition 1 is formed by kneading aggregate, glue, calcium chloride, an adhesion-inhibiting ingredient, and water. The aggregate contains talc, and the glue includes CMC, methylcellulose, corn starch, mannan powder. 1 or more selected from polysaccharides, and the adhesion-suppressing component is a work clay characterized by including one or more selected from silicone oil, glycerin, propylene glycol, and sodium hyaluronate. Soften to the extent that it can be modeled by heating to the extent that it can be held and held by hand, it will not stick, it will have a smooth feel, it will have good extensibility, and it will be able to model the desired shape well. The modeled shape can be maintained for a long period of time in a room temperature environment, and then softened to the extent that it can be modeled by reheating to the extent that it is held by hand and then shaped again. It may include the property that becomes ability.

Drawing substitute photograph which photographed the state where each model was placed side by side with a ruler (60 cm). In order to show that a small-sized thin piece can be shaped well according to the product of the present invention, a triceratops-like animal image having a frill (Dermos paraoxypitar) that was impossible to model in a small size with a conventional product was modeled. The drawing substitute photograph which image | photographed each modeling object of FIG. 1 from the front in order to make it easy to understand the shape of each modeling object. Although the leftmost model is not placed in FIG. 1, it is added in FIG. 2 to assist in understanding the shape.

Embodiments of the present invention will be described below.
As talc (hydrous magnesium silicate), for example, those having an average particle size of about 50 to 1 [μm] can be suitably used. Moreover, if it is provided as a food additive, it is preferable also from the surface of safety.

As CMC (carboxymethylcellulose / carboxymethylcellulose sodium), a 1% aqueous solution and a viscosity at 25 ° C. are 800 to 8000 [mPa · s], preferably 2000 to 7000 [mPa · s], more preferably 2500 to 6000 [mPa]. The range of s] can be suitably used.
For example, “CMC Daicel (registered trademark) product numbers 2200 and 2260; manufactured by Daicel Finechem Co., Ltd., both of which are high-purity products with a degree of etherification of 0.8 to 1.0”, Rose (SUNROSE is a registered trademark of the company) Variety F "or" Serogen (registered trademark of the company) 3H, 4H, BSH-6, BSH-12, F3H, F-BSH- "manufactured by Daiichi Kogyo Seiyaku Co., Ltd. 12, F-6HS9 "etc., or partially applicable. Moreover, if it is provided as a food additive, it is preferable also from the surface of safety. The etherification degree is preferably 0.60 to 1.00, more preferably 0.65 to 0.95.
A methyl cellulose having a viscosity equivalent to that of CMC can be preferably used. For example, it is provided by Shin-Etsu Chemical Co., Ltd. under the trade name “Metroze (registered trademark of the company)”, and can have a viscosity equivalent to that of CMC described above.

The silicone oil has a kinematic viscosity at 25 ° C. of 1 to 1000 [mm ² / s], preferably 10 to 900 [mm ² / s], more preferably 50 to 800 [mm ² / s]. Can be used. Moreover, as silicone oil, dimethyl silicone oil, such as dimethylpolysiloxane, can be used suitably, for example. For example, the “KF-96” series manufactured by Shin-Etsu Chemical Co., Ltd., or the like corresponds or partially corresponds. The “KF-96ADF” series provided for food is preferable from the viewpoint of safety.

Examples and comparative examples are described below.
Working clays of Examples (12 examples) and Comparative Examples (2 examples) were respectively prepared, and their characteristics were evaluated. In addition, Example 1 consists of six examples substantially. That is, it consists of 6 cases where the viscosity of CMC and the kinematic viscosity of dimethylpolysiloxane were changed.
(1) Example 1
Aggregate-1: Talc (hydrous magnesium silicate) 20 [g]
(Product Name: Food Additive Talc S-1, Average Particle Size 8.7 [μm])
Aggregate-2: Calcium sulfate 4 [g]
(Product name: food additive calcium sulfate, substance name: calcium sulfate dihydrate)
Paste: CMC 8 [g]
(Product name: Serogen F series (for food industry), substance name: sodium carboxymethyl cellulose, viscosity range at 25 ° C. and 1% aqueous solution: 3000 to 5000 [mPa · s] (3, 000, 4000, about 5000) )
Calcium chloride: Calcium chloride 18 [g]
(Product name: RS (calcium chloride), substance name: calcium chloride dihydrate)
Adhesion suppression component: Silicone oil 0.5 [g]
(Shin-Etsu Chemical Co., Ltd., trade name: KF-96ADF series, substance name: dimethylpolysiloxane, kinematic viscosity at 25 ° C .: 60 to 500 [mm ² / s], 4 types (about 60, 150, 350, 500) )
Water: Water 49.5 [g]
Were blended and kneaded.
Here, the combination of the viscosity of CMC [mPa · s] and the kinematic viscosity [mm ² / s] of dimethylpolysiloxane is:
(1) "3000, 60"
(2) "3000,150"
(3) "3000,350"
(4) "3000,500"
(5) “4000,150”
(6) “5000,150”
“Example 1” cited in Examples 2 to 12 and Comparative Examples 1 and 2 described later refers to a combination of (2) “3000,150”.
The evaluation results are shown in a table together with other examples and comparative examples. The evaluation criteria are as follows.
(A) State when taken out after being stored in a freezer for 2 days ×: Frozen, △: Frozen a little, ○: Not frozen (b) When taken and held for 2 minutes by hand Softened state ×: Not softened, △: Slightly softened, ○: Softened (c) Touch feeling when softened ×: Sticking to the hand, △: Sticky but not sticking to the hand, ○: Drying ( d) Formability ×: brittle and broken and cannot be formed, Δ: troublesome but generally formable, ○: formable, as the object to be evaluated, the shape shown in FIGS. 1 and 2 (having a flaky portion) Triceratops-like animal image) having a width of about 5 mm.
In addition, when we purchased and examined products that are non-adhesive to the hand, extensibility, etc., and displayed that it is a patented product (there is no indication of the patent number), Triceratops-like animal images (images having flaky sites) with a width of 3 cm or less could not be formed.
(E) Extensibility (length cut when pulled by holding both ends of the mass before shaping)
×: Length ≦ 50 cm, Δ: 50 cm <Length ≦ 1 m, ○: 1 m <Length (f) Shape maintenance (after forming (d), left in a room temperature environment for 2 weeks)
×: Collapsed, △: Slightly collapsed, ○: Not collapsed (g) Recyclability (After molding, sealed and allowed to stand at room temperature for 2 weeks, whether or not remodeling is possible)
×: Remodeling is impossible, △: Time is required but remodeling is possible, ○: Remodeling is possible

“Example 1” cited in the following Examples 2 to 12 and Comparative Examples 1 and 2 is a combination of (2) in (1) to (6) of Example 1 described above, that is,
CMC: viscosity at 25 ° C. and 1% aqueous solution is about 3000 [mPa · s],
Dimethylpolysiloxane: Kinematic viscosity at 25 ° C. is about 150 [mm ² / s]
Say an example of a combination.

(2) Example 2 (adhesion suppression component less)
A clay for work was prepared using the same materials and blends as in Example 1 except that “dimethylpolysiloxane” which is an adhesion suppressing component was changed to “0.2 [g]” (less).
(3) Example 3 (more adhesive suppression component)
A work clay was prepared using the same materials and blends as in Example 1 except that “dimethylpolysiloxane”, which is an adhesion suppressing component, was changed to “1.9 [g]” (more).
(4) Example 4 (Adhesive suppression component considerably less)
A work clay was prepared with the same material and composition as in Example 1 except that “dimethylpolysiloxane” which is an adhesion suppressing component was changed to “0.05 [g]” (substantially less).
(5) Example 5 (Adhesive suppression component considerably larger)
A work clay was prepared using the same materials and blends as in Example 1, except that “dimethylpolysiloxane”, which is an adhesion-suppressing component, was changed to “2.1 [g]” (which was considerably larger).

(6) Example 6 (less water)
A clay for work was prepared with the same materials and blends as in Example 1 except that water was changed to “42 [g]” (less).
(7) Example 7 (high water)
A working clay was prepared using the same materials and blends as in Example 1 except that water was set to “58 [g]” (more).
(8) Example 8 (water is considerably less)
A working clay was prepared using the same materials and blends as in Example 1 except that the water was set to “35 [g]” (substantially less).
(9) Example 9 (a lot of water)
A working clay was prepared using the same materials and blends as in Example 1 except that the water was set to “65 [g]” (substantially much).
(10) Example 10 (CMC low viscosity)
A clay for work was prepared with the same material and composition as in Example 1 except that the viscosity of CMC was set to “1000 [mPa · s] (low viscosity)”.
(11) Example 11 (CMC high viscosity)
A work clay was prepared using the same materials and blends as in Example 1 except that the viscosity of CMC was “6000 [mPa · s] (high viscosity).

(12) Example 12 (dimethylpolysiloxane high viscosity)
A working clay was prepared with the same materials and blends as in Example 1 except that the kinematic viscosity at 25 ° C. of dimethylpolysiloxane was 950 [mm ² / s].

(13) Comparative Example 1 (no calcium chloride)
In Example 1, it was prepared without using calcium chloride.
Even if it tried to knead, it became sticky and sticky, it was extremely difficult to knead, and I could not make what could be called clay for work.
(14) Comparative Example 2 (no adhesion suppression component)
It was prepared in Example 1 without using silicone oil.
Since the sticky feeling was so bad and it adhered to the hand severely, it could not be said to be a “working clay” suitable for the purpose of the present invention.

  As can be seen from Examples 1 to 3, 6 and 7, talc 12 to 36% by mass as aggregate, CMC 4 to 12% by mass as first paste, and calcium chloride 9 as second paste 9 When 27 wt%, 0.1-2 wt% of dimethylpolysiloxane, which is a mold release agent, and 40-60 wt% of water are combined in a total amount of 100 wt%, sufficiently good results are obtained. It was.

As can be seen from Example 1 and Example 4, when the amount of silicone oil was small, a “slight stickiness” was produced when it was held by hand, but it did not adhere to the hand. In addition, as can be seen from Example 1 and Example 5, when the silicone oil was large, it softened when held by hand, but it was not quick and did not adhere to the hand, but some stickiness was occured.
Incidentally, both Examples 4 and 5 were only suitable for the purpose of the present invention.

As can be seen from Example 1 and Example 8, when the amount of water was reduced, there were some problems in the formability, extensibility, and shape maintenance, but for the time being, it was only suitable for the purpose of the present invention. It was.
In addition, as can be seen from Example 1 and Example 9, when a large amount of water was used, when it was held by hand, it did not soften quickly and did not adhere to the hand, but some stickiness was generated. In addition, some problems occurred in extensibility. In either case, it was only suitable for the purpose of the present invention.

  As can be seen from Example 1 and Example 10, when the viscosity of CMC was low, it did not adhere to the hand, but some stickiness was generated. In addition, some problems were caused in the formability and shape maintenance. Further, as can be seen from Example 1 and Example 11, when the viscosity of CMC was high, it did not adhere to the hand, but some stickiness was generated. There were also some problems with formability and extensibility. In addition, both Examples 10 and 11 were suitable for the purpose of the present invention.

  Further, as can be seen from Example 1 and Example 12, when the kinematic viscosity of the silicone oil was set to a high viscosity, a slight stickiness was produced, but it did not adhere to the hand, and for the purpose of the present invention. It was suitable.

As can be seen from Comparative Example 1, when calcium chloride was lacking, it was not possible to make what could be called clay for work in the first place, without comparing with Example.
Further, as can be seen from Comparative Example 2, when silicone oil was absent, clay could be prepared, but it could not be said to be a work clay suitable for the purpose of the present invention.

In addition, instead of CMC and / or together with CMC, Example 1 (Examples 2 to 12 and Examples 1 and 2 cited in Comparative Examples 1 and 2) using one or more of corn starch, methylcellulose, mannan powder and polysaccharides The same results as in Example 1 were obtained, and good results were obtained.
Similarly, in place of dimethylpolysiloxane and / or in combination with dimethylpolysiloxane, one or more of sodium hyaluronate, glycerin, and propylene glycol were used in Example 1 (Examples 2-12 and Comparative Examples 1-2). When blended in the same manner as in Example 1 cited, good results were obtained.
Further, by blending calcium chloride, a clay suitable for the purpose of the present invention was obtained, and an antiseptic effect and an antifungal effect were obtained.
Although not shown in the evaluation of the table, by adding talc, good results were obtained in peelability, curability, softening prevention and adhesion prevention.
Moreover, the antimicrobial effect was acquired by mix | blending calcium sulfate.

Moreover, about the sample created with the same composition as Example 1 (the same as Example 1 quoted by Examples 2-12 and Comparative Examples 1-2), the synthetic pigment "trade name: manufactured by San-Ei Gen FFI Co., Ltd." By adding a small amount of “edible red No. 106”, it could be colored “red” without any problem.
Similarly, by adding a small amount of “trade name: Blue No. 1”, it can be colored “blue” without any problem. By adding a small amount of “trade name: Yellow No. 4, Yellow No. 5”, “yellow” It was possible to color “black” without any problems by adding a small amount of “trade name: bamboo charcoal powder manufactured by Nippon Aim Co., Ltd.”.

Claims (6)

It is made by kneading aggregate, glue, calcium chloride, adhesion-suppressing ingredients, and water.
The aggregate includes talc;
The paste includes one or more selected from CMC, methylcellulose, corn starch, mannan powder, polysaccharides,
The adhesion suppressing component includes one or more selected from silicone oil, glycerin, propylene glycol, and sodium hyaluronate.
A clay for work. In claim 1,
The aggregate further includes one or more selected from calcium sulfate, sodium sulfate, magnesium sulfate, silicon dioxide, magnesium carbonate, eggshell rubyum,
A clay for work. In claim 1 or claim 2,
The paste essentially contains CMC,
A clay for work. In any one of Claims 1-3,
The adhesion suppressing component essentially includes silicone oil,
A clay for work. In claim 4,
The silicone oil is dimethylpolysiloxane;
A clay for work. In any one of Claims 1-5,
The aggregate is 12 to 36% by mass, the glue is 4 to 12% by mass, the calcium chloride is 9 to 27% by mass, the adhesion suppressing component is 0.1 to 2% by mass, and the water is 40 to 60% by mass. %, And the total is 100% by mass.
A clay for work.