JP2747534B2 - Non-adhesive chewing gum - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-adhesive chewing gum which does not easily adhere to dentures, floors and the like.

[0002]

2. Description of the Related Art In general, chewing gum has a specific viscoelasticity, and thus is easily adhered due to an interfacial force with a tooth surface. This adhesiveness is remarkable especially in the case of dentures such as dentures, and therefore, a person using dentures becomes a major obstacle in enjoying chewing gum. Also, after chewing the chewing gum, the chewing gum that was discarded without wrapping it in paper, if thrown away on roads, floors, etc., is easy to adhere, it will dry over time and it will be difficult to peel off, Removal is more difficult than in the case of adhesion to dentures. In particular, throwing away chewing gum frequently occurs in public facilities such as station yards, and it has become a social problem because it impairs aesthetics.

[0003] In order to solve such a problem, chewing gums have been conventionally improved with a focus on prevention of adhesion to dentures. For example, Japanese Patent Application Laid-Open No. 60-66939 discloses a chewing gum.
Elastic body 10 to 30% by weight (hereinafter referred to as%), elastic solvent (natural resin) 2 to 18%, polyvinyl acetate (vinyl acetate resin) 15 to 45%, wax 0.5 to 1
Non-adherent chewing gum compositions based on 0%, 2-10% emulsifiers and the like are disclosed. However, in this chewing gum composition, the addition ratio of the elastic body and the wax is lower than the ratio of the vinyl acetate resin and the natural resin, and although it has the effect of preventing adhesion to teeth, the effect of preventing adhesion to the floor is weak. The floor is easier to dry than the tooth surface, and because of its rough surface, it is more adhesive than the teeth. Therefore, those having a low amount of the elastic body , such as the above chewing gum composition, can be prepared by a slight pressing.
Since it spreads thinly , its adhesion to floor materials and the like increases. Further, the molecular weight of the vinyl acetate resin is 15,000 to 30,0.
Since it is as low as 00, the adhesiveness becomes strong, which is also a factor that increases the adhesion to floor materials and the like. Further, since the amount of the emulsifier added is small, the moisturizing property of the chewing gum at the interface between the flooring material and the like and the chewing gum becomes insufficient, and the chewing gum is easily dried, and the adhesion preventing effect is hardly obtained.

Further, another composition is disclosed in
No. 66938 discloses an elastic body 10
30%, vinyl acetate resin 10-35%, hydrocarbon (wax) 20-45%, emulsifier 2-10%, minerals 8-2
0% non-stick chewing gum. However, since this composition has a small amount of the emulsifier added thereto as described above, the moisturizing property of the chewing gum at the interface between the flooring material and the chewing gum is insufficient, and the composition is easily dried and the adhesion preventing effect is obtained. It is hard to be. Further, in the above composition, when the elastic body and the vinyl acetate resin are in the low molecular weight range, the adhesiveness increases, and the effect of preventing adhesion to a flooring material and the like in particular decreases.

Further, Japanese Patent Publication No. 58-6454 discloses that
A non-sticky chewing gum in which a synthetic terpene resin and a wax coexist in a usual gum base is disclosed. The chewing gum is intended to reduce the ratio of ester gum, which causes adhesion to dentures, and to substitute synthetic terpene resin and wax. However, although this composition has an effect of preventing dentures, the synthetic terpene resin itself is inherently a highly sticky substance, so that prevention of adhesion to floor materials or the like cannot be expected much.

Further, Japanese Patent Publication No. 2-18049 discloses that
In low calorie chewing gum consisting of 92-99% gum base, fragrance and glycerin, as gum base,
Non-adherent chewing gum with the addition of limited elastomers, hydrogenated animal and vegetable fats, fillers, vinyl acetate resins, emulsifiers, resins, natural gums, waxes and antioxidants is disclosed. However, this chewing gum,
Et elastomer and lower ratios and molecular weight of natural rubber, although for the teeth is somewhat effective, effect of preventing adhesion to the flooring or the like can not be expected. Also, since the amount of gum base is very large, sugar sweeteners such as sugar used conventionally cannot be added. For this reason, the physical properties are different from those of ordinary chewing gum, so that it is difficult to produce with conventional production equipment. As described above, all of the conventional chewing gums have a limited adhesion prevention effect or have a poor productivity.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and as a result of examining the composition of a chewing gum capable of preventing adhesion to flooring and the like, it has been found that the elasticity of the chewing gum in the gum base is particularly high. It has been found that when the body, the waxes and the emulsifier have a specific composition, the effect of preventing adhesion to a floor material or the like is remarkably improved, and the present invention has been completed. An object of the present invention is to provide a non-adhesive chewing gum which has an excellent effect of preventing adhesion to not only dentures but also floor materials and the like and has good productivity.

[0008]

The object of the present invention is to provide a gum base containing 5.5 to 9.5% of an elastic material, 46 to 50% of a wax, and 12 to 20% of an emulsifier. This is achieved by a non-adherent chewing gum characterized by the following:

Next, the present invention will be described in detail. The non-adhesive chewing gum of the present invention contains 5.5 to 9.5%, preferably 7 to 9% of an elastic body, 46 to 50% of waxes, preferably 47 to 48%, and an emulsifier in the total weight of the gum base. It contains a gum base containing 12 to 20%, preferably 14 to 18%.

[0010] In general, the polymer (polymer) is a viscoelastic material which has both an elastic behavior and viscous behavior. The characteristic when a response is observed by applying a periodic stimulus to the viscoelastic body is called dynamic viscoelasticity. As a factor affecting the process of bonding the chewing gum surface and the adherend surface, among the dynamic viscoelasticity, the storage modulus (G ′) is effective as an evaluation index of non-adhesion of chewing gum. Was found to be. The storage elastic modulus (G ′) of the adhesive is 3.3 × 10
It is considered that when the amount is ⁶ dyne / cm ² or less, the adhesive and the surface of the adherend can be sufficiently adhered in a short time.
Therefore, according to the present invention, the storage elastic modulus (G ′) is 3.3 × 10 3
It is the result of research on chewing gum compositions that exceed ⁶ dyne / cm ² . FIG.
The temperature dependence of the storage elastic modulus (G ') of an example of a chewing gum satisfying the constitutional requirements of the present invention and a conventional chewing gum is shown below. As shown in FIG. 1, the chewing gum according to the present invention has a storage elastic modulus (G ′) of more than 3.3 × 10 ⁶ dyne / cm ² in a temperature range of 60 ° C. or less and adheres to flooring material. The heated chewing gum is directly heated by sunlight, and retains its elasticity even when heated to about 50 to 60 ° C. As a result, a chewing gum having an excellent effect of preventing adhesion to a floor material or the like can be obtained. On the other hand, the conventional chewing gum already has a storage elastic modulus (G ') of about 3.3 × 10 ⁶ dyne / cm ² or less at around 25 ° C., and it can be seen that the adhesiveness of the flooring material is high.

[0011] Further, by making the elastic body and the wax the above composition, not only adhesion prevention but also excellent early expression of flavor and texture can be obtained. That is, at the time of eating, the sweetener added to the chewing gum,
Flavors and the like are hardly adsorbed in the gum base, and flavor is eluted from the initial stage of chewing, and a punchy flavor is developed early and a chewing gum having a smooth texture is obtained.

[0012] as an elastic body used in the present invention, polyisobutylene, polyisoprene, and mixtures thereof can be mentioned, which may be in combination of two or more kinds in combination. Among them, polyisobutylene is particularly preferable in terms of non-adhesion. The average molecular weight of these elastic bodies is 100,
It is preferably from 000 to 300,000. When the average molecular weight is less than 100,000, soft properties with elongation can be obtained, but the viscosity is increased and the adhesion preventing effect tends to be deteriorated. Conversely, when the average molecular weight is 3
If it exceeds 000, the rubber becomes strong rubber-like elasticity and the non-adhesion property is improved, but the biting comfort tends to be hard.

The amount of the elastic body is 5.5 to 9.5% based on the total weight of the gum base. 5.5 elastic body
%, The elasticity is insufficient and the biting comfort is deteriorated. As for the flavor, too early expression occurs, the flavor is produced at once, and the chewing gum has no persistent flavor.
Conversely, if it exceeds 9.5%, it is plasticized by an emulsifier,
Adhesion appears in the rubber material having increased flexibility, and the adhesion preventing effect tends to be weakened. As for the flavor, the flavor is adsorbed on the gum base, and the flavor at the beginning of chewing tends to be weak.

Next, the waxes used in the present invention include microcrystalline wax, paraffin wax, and hardened vegetable oils. These may be used alone or in combination. The melting point of the wax is preferably 80 to 90 ° C. If the melting point is less than 80 ° C., the gum base tends to be softened, the tackiness increases, and the gum base tends to adhere. Conversely 90
If the temperature exceeds ℃, softening due to body temperature during eating is delayed, and the texture tends to be poor and soft. Also,
The amount of the wax is 46 to 46% of the total weight of the gum base.
50%. If the wax content is less than 46%, the tackiness of the plasticized rubber tends to increase due to the relative ratio between the waxes and the elastic body, and the adhesion tends to increase. Conversely, 50
%, The chewing gum softens and becomes less coherent, and at the same time, the tackiness increases and the adhesion preventing effect decreases.

Next, as the emulsifier of the present invention, fatty acid monoglycerides, diglycerides, acetylated monoglycerides, acetylated diglycerides and the like, which may be used alone or in combination of two or more thereof. Generally, an emulsifier acts as a plasticizer for an elastic body and a vinyl acetate resin, and finishes a gum base material with a soft and smooth chewing feeling. Therefore, in conventional chewing gum, usually 2 to 10% is added to the gum base, but in the present invention, it is 12 to 20%, preferably 14 to 18%. That is, when the emulsifier is less than 12%, the plasticizing ability is not sufficiently exhibited, and the gum base has a strong elastic hard feeling. In addition, the chewing gum chewing gum after being discarded on a road, a floor, or the like has insufficient moisture retention, so that the chewing gum easily dries and increases adhesion. Conversely, if it exceeds 20%,
The plasticizing ability of the vinyl acetate resin is strong, and the adhesion is increased, so that the adhesion preventing effect cannot be obtained.

In the above chewing gum base,
It is preferable to add a vinyl acetate resin and an inorganic substance in addition to the above-mentioned elastic body, waxes and emulsifier. The higher the average degree of polymerization of the vinyl acetate resin, the higher the adhesion preventing effect. For example, even if the average degree of polymerization is 200 or less, a non-adhesive chewing gum can be obtained depending on the mixing ratio of other gum base materials. The amount of addition may be appropriately set according to the composition of the gum base and the quality design of the chewing gum, and is usually about 15 to 20%.

Next, the inorganic substance is appropriately selected from calcium carbonate, talc and the like, and these may be used alone or in combination. Naturally, minerals have the effect of increasing non-adhesion, and in conventional chewing gum, in the gum base,
It is added in the range of 8 to 20%. And, conventionally, 8
If it is less than 20%, the effect of preventing adhesion is poor, and if it exceeds 20%, it is considered that the tissue becomes coarse and the biting feeling is deteriorated. However, in the present invention, preferably less than 8%, more preferably 4%, in the gum base of the chewing gum.
It is preferable to add 7%. This is because the elastic body and the wax exert the maximum effect of preventing adhesion.

If the gum base having the above composition and other raw materials (sugars, softeners, fragrances, dyes, etc.) etc. which are usually added to chewing gum are mixed and kneaded, and prepared according to a conventional method, the present invention provides It becomes a non-adherent chewing gum.

[0019]

As described above, the non-adhesive chewing gum of the present invention is a chewing gum excellent in the effect of preventing adhesion to not only dentures but also floor materials, etc., because it contains a gum base having a specific composition. Further, the flavor is eluted from an early stage of the start of chewing, so that a chewing gum in which the flavor with a punch is developed early. In addition, its physical properties can be produced using conventional chewing gum production equipment, and can be formed into various shapes. In addition, flavoring, coloring and the like can be freely designed as in the case of conventional chewing gum.

Next, the present invention will be specifically described with reference to examples. [Examples 1 to 7, Comparative Examples 1 to 5] (Preparation of gum base) First, a predetermined gum base material excluding an emulsifier and an inorganic substance was charged into a mixer with the composition shown in Table 1, and heated to 110 to 120 ° C. Then, after the gum base material was melted, it was mixed until homogeneous for one hour. Thereafter, an emulsifier and an inorganic substance are added, and 15
After mixing for a minute, the mixture was taken out and cooled to room temperature to obtain a gum base.

(Preparation of chewing gum) 25 parts of the above gum base, 56 parts of powdered sugar, 5 parts of glucose,
12 parts of starch syrup, 1 part of glycerin and 1 part of flavor are put into a chewing gum mixer, mixed homogeneously for 15 minutes, and mixed with 1 part per sheet.
It was rolled to 9 × 72 × 1.9 mm and cut to obtain chewing gum.

Next, using the obtained chewing gum,
Twenty panelists evaluated the effect of preventing chewing gum from adhering to dentures and the effect of preventing adhesion to flooring material (mortar). The results are shown in Table 1. In addition, the adhesion experiment to the denture and the adhesion experiment to the floor material were performed as follows. (Adhesion experiment to denture) Paneler 2 using denture (methacrylate resin)
0 persons evaluated the adhesion to the denture during chewing gum chewing by sensory evaluation. (Adhesion experiment to flooring material) Chewing gum chewed for 5 minutes is 100 × 40 × 15 mm
Was pressed between two mortar pieces and pressed at a constant pressure, and then left standing all day and night to evaluate the peelability when the mortar pieces were peeled off by hand.

[0023]

[Table 1]

From the results shown in Table 1, it can be seen that the chewing gums of the examples have excellent adhesion preventing effects on both dentures and flooring materials. Also, it was excellent in early expression of flavor. On the other hand, the chewing gum of the comparative example was not preferable because adhesion to dentures and floor materials was recognized.

[Brief description of the drawings]

FIG. 1 is a diagram showing the temperature dependence of the storage modulus (G ′) of the chewing gum of the present invention and a conventional chewing gum.

Claims (1)

(57) [Claims] A non-woven gum base containing 5.5 to 9.5% by weight of an elastic body, 46 to 50% by weight of a wax, and 12 to 20% by weight of an emulsifier. Adhesive chewing gum.