Structural improvements to sandwich bags (Part 2)

Abstract

This invention relates to a structural improvement of a sandwich bag, comprising a first bag body, a second bag body, a receiving space, and a guide. The first bag body includes an upper bag body, a lower bag body, an interface weakening portion, a first lug, an upper tear, and a lower tear. The second bag body includes a second lug and a split opening. With this structure, when the user pulls the guide using the first and second lugs, the applied force is transmitted along the interface weakening portion via the upper and lower tear openings and the split opening. The split opening separates the second lug from the second bag body, causing the interface weakening portion to peel off from the upper and lower bag body, thus separating the upper and lower bag body to form an opening. This allows for control over the opening position and range, and can be completed with a single-handed pull, improving ease of use. Furthermore, since the interface weakening portion does not easily connect the receiving space to the outside, the risk of external contamination is reduced.

Claims

1. An improved structure of a sandwich bag, comprising: A first bag body portion, comprising: an upper bag body portion; First, the bag body; An interface weakening section extends laterally between the upper bag section and the lower bag section; A first protruding ear portion, the first protruding ear portion protruding from the edge of the first bag body portion; An upper tear is formed between the upper bag body and the first lug; a lower tear is formed between the lower bag body and the first lug; a second bag body is connected to the first bag body to form a storage space for containing food, and includes: a second lug protruding from the edge of the second bag body and connected to the first lug; a split opening formed on the side of the second lug for separating the second lug from the second bag body; and a guide provided on the interface weakening portion and the first lug; When the first and second protruding ears are pulled, they are linked to the guide member. The applied force is transmitted along the interface weakening part through the upper and lower tear openings. The second protruding ears are separated from the second bag body part through the split opening, so that the interface weakening part is peeled off from the upper bag body part and the lower bag body part, thereby separating the upper bag body part from the lower bag body part.

2. The structural improvement of the sandwich bag as described in claim 1, wherein the toughness of the interface weakening portion is less than the toughness of the guide.

3. The structural improvement of the sandwich bag as described in claim 1, wherein the first lug extends horizontally in a direction away from the first bag body, and the second lug extends horizontally in a direction away from the second bag body.

4. An improvement to the structure of the sandwich bag as described in claim 1, wherein the guide is provided by ultrasonic heat fusion or high-frequency heat fusion.

5. The structural improvement of the sandwich bag as described in claim 1, wherein the first bag body and the second bag body are made of biaxially oriented polypropylene film (OPP), cast polypropylene film (CPP), or plastic film.

6. An improved sandwich bag structure as described in claim 1, wherein the first bag body has an insulating layer.

7. An improved sandwich bag structure as described in claim 6, wherein the insulating layer has an observation port.

8. The structural improvement of the sandwich bag as described in claim 1, wherein the interface weakening portion, the upper tear and the lower tear extend to the second bag body portion, and when the number of guides is two, a second guide is provided on the interface weakening portion and the second lug portion on the second bag body portion.

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