CN218840331U - Packaging bag for color-changeable food - Google Patents

Abstract

The utility model discloses a packaging bag for color-changeable food, which comprises a bag body, wherein the bag body is provided with a visual area, the visual area comprises a window frame and a loose-leaf window, and the loose-leaf window is arranged on the window frame; the outer periphery of the window frame is provided with a window frame adhesive area, the window frame adhesive area is adhered to the bag body, the inner periphery of the window frame is provided with a clamping groove area, and the clamping groove area is a non-adhesive area; the middle part of window frame is the fretwork district, and loose-leaf window installs in the fretwork district. The utility model discloses both can make the consumer see quality such as the true color of food, shape when purchasing commodity, respect and protect consumer's trust, can protect the colour of food again, improve the shelf life quality of yielding food.

Description

A wrapping bag for easy discolour food

Technical Field

The utility model relates to a wrapping bag, in particular to a wrapping bag for yielding food.

Background

The food has health, nutrition and safety properties, and is generally required to have good color, aroma and taste. Color is an important factor in evaluating food quality. At present, pigments in food are classified into natural pigments and synthetic pigments.

The natural pigment is mainly phytochrome, and is generally derived from roots, stems, leaves, flowers, fruits and the like of natural plants, such as chlorophyll, curcumin, phytochrome and the like. Its advantages are: the color tone is natural, so that the color of a natural object can be better simulated; most of the raw materials are harmless to human bodies and have high safety; part of natural pigment has bioactivity and nutrition enhancing effect; some varieties have special aromatic odor and can bring joyful feeling to people. The disadvantages are: the content is generally low, and the tinting strength is poor; the cost is high, and the stability is poor; it is difficult to formulate an arbitrary color tone; in the processing and circulation process, the material is easily influenced by external factors, is easily deteriorated and the like.

The artificial synthetic pigment is prepared from coal tar serving as a raw material, and the chemical structure of the artificial synthetic pigment belongs to an azo compound, so that the color expression is better than that of natural pigments, such as sunset yellow, allure red, lemon yellow and the like. Its advantages are: the cost is low and the price is cheap; bright color and strong tinting strength; high stability, no odor and odor, easy dissolution, and easy color adjustment. The disadvantages are: almost all synthetic pigments cannot provide nutrients to human body, some synthetic pigments even harm human health, resulting in fertility reduction, teratogenesis and the like, and some pigments in human body may even be converted into carcinogenic substances.

The sanitary standards for food additive use clearly stipulate the range and dosage of edible pigment added in food, and the edible pigment can be used for soft drinks (such as carbonated beverages), preserves, cakes, candies, jellies and the like; adding artificially synthetic pigment into milk, pure water, meat products (such as jerky, dried meat slice, and dried meat floss), roasted seeds (such as semen Benincasae and semen Pini), etc.; any artificially synthesized pigment is strictly prohibited in infant food.

With the gradual rise of health consciousness of people, the appeal of consumers to food safety forces food production enterprises to use natural pigments more. However, the light sensitivity of natural pigments (such as green leaves in matcha, anthocyanin in sphenoidea flower and the like) in food is very easy to fade or discolor in shelf life, so that the consumption trust index of a consumer who purchases the product again is directly influenced, and the economic benefit of the food is further influenced.

At present, in order to avoid the quality deterioration problems such as food color change and the like caused by illumination, the general packaging used in industry is generally totally enclosed type light-resistant packaging, such as aluminum foil bags, compound kraft paper bags, iron cans and the like, the packaging is often printed with a photo of a product, and then a word of 'product picture is added for reference'. Generally, the photo of the product printed on the package is different from the actual appearance of the food in the package, and a consumer may be attracted to purchase the product by the photo on the package, but a certain psychological expectation fall is generated after the package is opened to see the food, so that the secondary purchase and consumption are influenced.

SUMMERY OF THE UTILITY MODEL

Based on the problem that easily discolours food and packing exist among the above-mentioned background art, the utility model discloses carry out the novelty to traditional food package and improve, aim at providing the food package bag that the structure is exquisite simple, the practicality is strong. Through the innovation of packaging, not only can consumers see the quality such as the real color, the shape of food when purchasing commodities, respect and protect the trust of consumers, but also can protect the color of food and improve the shelf life quality of the color-changeable food.

The above technical problem of the utility model is mainly solved through the following technical scheme:

a packaging bag for color-changeable food comprises a bag body, wherein the bag body is provided with a visible area, the visible area comprises a window frame and a loose-leaf window, and the loose-leaf window is arranged on the window frame; the outer periphery of the window frame is provided with a window frame adhesive area, the window frame adhesive area is adhered to the bag body, the inner periphery of the window frame is provided with a clamping groove area, and the clamping groove area is a non-adhesive area; the middle part of the window frame is a hollow area, and the loose-leaf window is arranged in the hollow area.

Furthermore, a window gluing area is arranged at the lower part of the loose-leaf window, the loose-leaf window is glued to the lower part gluing part of the hollowed-out area through the window gluing area, a semicircular bulge is arranged at the upper part of the loose-leaf window, and the semicircular bulge is embedded into the clamping groove area; the window frame is embedded and stuck in and covers the visible area of the bag body; the visible area is arranged on the side surface of the bag body.

Further, the whole bag body is cuboid; the window frame is sized slightly larger than the visible area of the bag body. The size of the inner periphery of the window frame is slightly larger than the visible area of the bag body; the small part of the bottom of the loose-leaf window is a sticking area, and the large part of the upper part of the loose-leaf window is a loose-leaf area which can be freely opened and closed.

Further, the top of the bag body is provided with a bag sealing area. The surface of the bag body is provided with a light shading layer.

Compared with the prior art, the utility model provides a pair of a wrapping bag for yielding food's advantage lies in: the bag body is integrally formed by food-grade light-resistant materials, has the functions of oxygen resistance, moisture resistance and light resistance, and can effectively control food deterioration factors such as oxygen, humidity, illumination and the like. The side face of the bag body is provided with the visible window, visual qualities such as color and shape of food can be seen by opening the window, so that consumers can directly observe the food conveniently, the food pollution caused by package damage is avoided, the window can be closed to isolate illumination, and the fading deterioration of the color-variable food caused by light sensitivity can be effectively avoided. The visible window is completely isolated from food, and can be opened and closed repeatedly at will without affecting the quality of the food. The packaging bag has the advantages of exquisite and novel structure, convenient operation and convenient large-scale popularization, can be widely applied to packaging of all foods, enables the word of 'product pictures only used for reference' on the packaging bag to become history, and has very wide application prospect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the present invention;

fig. 2 is a schematic structural view of the bag body of the present invention;

fig. 3 is a schematic structural view of a visible window frame according to the present invention;

fig. 4 is a schematic structural view of a visible window of the present invention;

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.

As shown in fig. 1 to 4, a packaging bag for color-changeable food comprises a bag body 1, wherein a visible area 112 is arranged on the bag body 1, the visible area 112 comprises a window frame 2 and a loose-leaf window 3, and the loose-leaf window 3 is arranged on the window frame 2; the outer periphery of the window frame 2 is provided with a window frame adhesive area 212, the window frame adhesive area 212 is adhered to the bag body 1, the inner periphery of the window frame 2 is provided with a clamping groove area 211, and the clamping groove area 211 is a non-adhesive area; the middle part of the window frame 2 is a hollow area 213, and the loose-leaf window 3 is installed in the hollow area 213.

The utility model is used for the wrapping bag of yielding look food, food are sealed in the back in the bag of packing into, can observe interior food's colour, shape etc. of bag through opening loose-leaf window 3 on the bag body 1, then can close the window in the draw-in groove of the semi-circular protruding embedding "window frame" of "loose-leaf window", and protection food does not receive illumination and arouses to fade or discolour.

The lower part of the loose-leaf window 3 is provided with a window adhesive area 313, the loose-leaf window 3 is adhered to the lower adhering part of the hollow area 213 through the window adhesive area 313, the upper part of the loose-leaf window 3 is provided with a semicircular bulge 311, and the semicircular bulge 311 is embedded into the clamping groove area 211; the free and random opening and closing of the window are realized; the window frame 2 is embedded and stuck in and covers the visible area of the bag body 1; the visible area is arranged on the side surface of the bag body 1; the whole bag body 1 is cuboid; the bag body 1 is made of food light-resistant materials, and the size of the window frame 2 is slightly larger than the visible area of the bag body 1; the window frame 2 covers the transparent visual area through pasting; the sizes of the window frame 2 and the loose-leaf window 3 can be freely adjusted according to the size of the bag body 1 or the size of the food contained in the bag body; the window frame 2 and the loose-leaf window 3 are made of light-resistant materials; the inner circumference of the window frame 2 is slightly larger than the visible area of the bag body 1; the small part of the bottom of the loose-leaf window 3 is a sticking area, and the large part of the upper part of the loose-leaf window 3 is a loose-leaf area which can be freely opened and closed; the top of the bag body 1 is provided with a bag sealing area 111, and the top of the bag body 1 is conveniently sealed through the bag sealing area 111 to achieve a sealing effect. The surface of the bag body 1 is provided with a light-proof layer 113; the light shielding layer 113 has a light shielding effect on the bag body 1, and prevents the food in the bag body 1 from being rapidly rotten.

The utility model has the advantages that the bag body is integrally formed, the functions of oxygen resistance, moisture resistance and light resistance are realized, and the food deterioration factors such as oxygen, humidity, illumination and the like can be effectively controlled; the side surface of the bag body is provided with the visible window, so that the visual quality such as the color, the shape and the like of food can be seen by opening the window, the direct observation of consumers is facilitated, the food pollution caused by package damage is avoided, the light can be isolated by closing the window, and the color fading and the deterioration of the color-variable food caused by light sensitivity can be effectively avoided; the visual window of this wrapping bag is completely isolated with food, can open and shut at will and not influence the quality of food, and the exquisite novelty of this wrapping bag structure, convenient operation, the scale of being convenient for are promoted, but wide application in the packing of all food let on the wrapping bag "product picture only supply the word of reference" become history, and the practicality is strong.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims (10)

1. A packaging bag for color-changeable food comprises a bag body, wherein the bag body is provided with a visible area, the visible area comprises a window frame and a loose-leaf window, and the loose-leaf window is arranged on the window frame;

the method is characterized in that: the outer periphery of the window frame is provided with a window frame adhesive area, the window frame adhesive area is adhered to the bag body, the inner periphery of the window frame is provided with a clamping groove area, and the clamping groove area is a non-adhesive area; the middle part of window frame is the fretwork district, and loose-leaf window installs in the fretwork district.

2. The packaging bag for perishable food according to claim 1, wherein: the lower part of the loose-leaf window is provided with a window gluing area, the loose-leaf window is glued to the lower part gluing part of the hollowed-out area through the window gluing area, the upper part of the loose-leaf window is provided with a semicircular bulge, and the semicircular bulge is embedded into the clamping groove area.

3. The packaging bag for perishable food according to claim 1, wherein: the window frame is embedded and stuck in the visible area of the bag body.

4. The packaging bag for perishable food according to claim 1, wherein: the visible area is arranged on the side surface of the bag body.

5. The packaging bag for perishable food according to claim 1, wherein: the whole bag body is cuboid.

6. The packaging bag for color-changeable food according to claim 1, wherein: the window frame is larger in size than the visible area of the bag body.

7. The packaging bag for perishable food according to claim 1, wherein: the inner circumference of the window frame is larger than the visible area of the bag body.

8. The packaging bag for perishable food according to claim 1, wherein: the small part of the bottom of the loose-leaf window is a sticking area, and the large part of the upper part of the loose-leaf window is a loose-leaf area which can be freely opened and closed.

9. The packaging bag for perishable food according to claim 1, wherein: the top of the bag body is provided with a bag sealing area.

10. The packaging bag for color-changeable food according to claim 1, wherein: the surface of the bag body is provided with a light shading layer.

Images