JPS59164363A - Coffee-containing powder - Google Patents

Abstract

PURPOSE:To provide a plastic molding powder contg. coffee, which gives a film to which a strong fragrance of coffee is imparted, by kneading natural coffee powder with a resin for use in the production of laminating films. CONSTITUTION:Dry coffee powder having a particle size approximately equal to the thickness of the resulting film is kneaded with a resin such as an ionomer resin, a polyethylene resin, a polypropylene resin or a polystyrene resin for use in the production of laminating films to obtain a plastic molding powder contg. coffee, which gives a film or a sheet to which a strong fragrance of coffee is imparted. Pref. various components such as caffeine, etc. of coffee are kneaded together. When said molding powder contains 5wt% or more of coffee powder, various coffee components are leached out into a leaching soln.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to pellets for glass molding, and particularly to coffee powder for glass molding, which is characterized by being kneaded with natural coffee powder.

Paper and plastic are generally used as food packaging materials.

Although various materials such as metals have been used for a long time, the characteristics of the packaging materials often interfere with the characteristics of the food itself. This means plastic,
This is a particular problem with metal containers, but due to the recent spread of vending machines and the like, the use of plastic laminate in paper containers has caused the same chemical problems as those used in green tea containers sold at railway stations. Various improvements have been proposed for 1C, including its characteristics and unique odor.

The purpose of the present invention is to eliminate the above-mentioned drawbacks of glass food packaging materials, and to develop a new food packaging material that does not give off the product characteristics of food materials, especially food-specific aromas. The purpose is to provide packaging materials.

Yet another object of the present invention is to provide a novel food packaging material in which the properties of the food materials contained therein are further enhanced by the packaging material. It is to provide.

As a result of research, the present inventor has discovered that by applying γIL kneading of dry coffee powder with a particle size that is approximately the same as the thickness of the film, it is possible to We learned that the resulting film sheet could have a very strong coffee odor, and after further studies on the type of film, film thickness, coffee content, etc., we discovered that it can be used not only for film products but also for all kinds of plastic molded products. All findings indicate that a similar concept can be applied.

That is, the present invention relates to a pellet for plastic molding, particularly a coffee powder for plastic molding characterized by kneading natural coffee powder. The components of each of our coffees are leached out. Table 1 compares the various components in the roasted coffee beans and the leached content in the infusion solution in weight percent.

Table 1 The coffee powder for glass molding of the present invention can be used in the form of a laminated film for food paper containers, metal containers, etc., and may itself be molded as a food container, and has a coffee powder content of 5% by weight. It is desirable that the level is above a certain level, but it does not have to be particularly harmful to coffee content or the limits of plasticity. Depending on the product field to which it is applied, for example, low-density polyethylene, etc. may be used for laminating film sheets such as paper cots. However, polypropylene and the like can be suitably used for the molded container.

In addition, by kneading not only natural coffee powder but also various coffee-related ingredients such as caffeine with coffee, it becomes even more effective. It goes without saying that the film sheet made from the mold powder of the present invention can be used as a single layer, but it can also be used in combination with various films to form a two-layer, three-layer, four-layer, etc. laminate film. Examples of the present invention will be shown below, which can significantly expand its scope of application.

Example 1 The physical properties of polypropylene kneaded with sufficiently dried natural coffee (Colombia) powder at a content of 420% by weight are as shown in the table below, and virtually no changes were observed from standard polypropylene. Ta.

The resulting pellets for kneading and molding were extrusion molded into a container shape, resulting in a container with a pronounced coffee odor. Note that drying of coffee powder): ■ If the coffee powder was insufficiently strong, sufficient pellets could not be obtained.

Example 2 Polyglobylene F4 containing 1% dried natural coffee powder A multilayer film laminated to a gold barrier film, which was laminated on the inside surface of a paper cup for a coffee vending machine and leached with hot water, had no coffee odor. was clearly observed, and analysis by gas chromatography revealed the elution of various components of coffee, including various pyrazines and furfurals.

Example 3゜Caffeine 1% when kneading dry natural coffee powder
The paper cup laminated on the inner surface of the paper cup in the same manner as in Example 2 except that polyethylene film gold was used instead of polypropylene film contained a large amount of caffeine compared to Example 2. was observed to be able to take a bath.

Example 4゜A polyethylene film with a film thickness of 30 μm was coated with a particle size of 30 μm.
A container containing 5% coffee powder (approximately 1 liter) was laminated to a three-layer laminate film (Kuraray Eval) and then blow-molded to form a multi-layer blow-molded container.
I was able to get k.

Example 5 Various tabletop ornaments were molded from polypropylene prepared by kneading thoroughly dried 30μ natural coffee powder with a 25% by weight filler. It had fragrance retention properties.

As is known from the above examples, various glass products obtained by fully using the coffee powder of the present invention can be used not only in two-laminated films such as paper cups but also in packaging for various coffee containers. It is clear that it has significant advantages as a material.

Patent applicant: Nippon Dixie Co., Ltd. Year 9 people ￥ male 479 S

Claims (1)

[Claims] 1. Coffee powder for plastic molding, characterized in that it is mixed with natural coffee powder. 2. The coffee powder according to item 1 above, wherein the natural coffee powder is sufficiently dried and kneaded with additives other than coffee. 3. Plastic is polyethylene or polypropylene/
The coffee powder according to item 1 above. 4. A coffee-containing plastic film sheet made from the plastic molding powder described in item 1 above. 5. The film sheet according to item 4 above, which is laminated with various films. 6. A coffee-containing plastic molded product made from the glass molding powder described in item 1 above.