TWI707652B - Waterproof and fully biodegradable tableware structure and manufacturing method thereof - Google Patents

Abstract

The present invention provides a waterproof and fully biodegradable tableware structure and manufacturing method thereof, wherein the tableware structure comprising: a biodegradable body having a first surface and a second surface; a biodegradable waterproofing film formed on the first surface and/or the second surface. Through the implementation of the present invention, the effects of full biodegradation and environmental protection can be achieved.

Description

Waterproof and biodegradable tableware structure and manufacturing method thereof

The invention relates to a waterproof and fully biodegradable tableware structure and a manufacturing method thereof, in particular to a waterproof and fully biodegradable tableware structure as a food tableware and a manufacturing method thereof.

As the pace of social operation becomes faster and faster, people’s dietary habits must also be adjusted accordingly. Fast cooking, easy to carry out meals, and tableware can be used to avoid the hassle of cleaning... etc., all of which are adjusted by the rhythm of social operations Derivative phenomenon.

However, in the past, while pursuing convenience, the excessive use of non-biodegradable chemical products, such as PVC, PE, PET, PP... and other chemical tableware, has been abandoned to the environment over time, which has caused terrestrial and even marine ecological problems. A serious burden.

As human’s pursuit of speed and convenience is not easy to change, how to develop tableware that can meet the needs of society’s fast pace and convenience and take into account environmental and ecological protection, so that the tableware can be completely decomposed and pollution-free after being used and discarded The ecological integration of nature has become an important issue for the sustainable survival of mankind.

The present invention is a water-proof and fully biodegradable tableware structure and its manufacturing method. It mainly achieves that the tableware can have sufficient water resistance or heat resistance, and the tableware can be completely biodegraded after being discarded after use. Cause the problem of environmental pollution.

The present invention provides a waterproof and fully biodegradable tableware structure, which comprises: a biodegradable paper substrate with a first surface and a second surface; a biodegradable waterproof membrane formed on the first surface and/or On the second surface.

The present invention provides a method for manufacturing a fully biodegradable tableware, which includes: providing a biodegradable paper substrate, which has a first surface and a second surface; coating a liquid calderan gum solution, which is a liquid The carderan gum solution is coated on the first surface and/or the second surface to make the biodegradable paper substrate a waterproof and fully biodegradable substrate; it is dried at a low temperature at 80°C (including ) The waterproof and biodegradable substrate is dried at the following temperature to produce a substrate to be processed; for product forming, the substrate to be processed is subjected to product forming processing to produce a molded product with at least one The joint; and high-temperature drying, which heats the molded product at a temperature above 130°C (inclusive), and seals and adheres the joint to each other.

Through the implementation of the present invention, at least the following advanced effects can be achieved: 1. It can make the tableware have sufficient water resistance or heat resistance. 2. Food tableware or supplies that can be completely biodegradable can be made. 3. It can completely replace plastic products, so there is no environmental protection problem. as well as 4. The process arrangement with different temperature parameters can effectively mass produce and improve the yield rate.

In order for anyone familiar with the relevant art to understand the technical content of the present invention and implement it accordingly, and according to the content disclosed in this specification, the scope of patent application and the drawings, anyone familiar with the relevant art can easily understand the related purposes and advantages of the present invention Therefore, the detailed features and advantages of the present invention will be described in detail in the embodiments.

As shown in FIG. 1A, the first embodiment is a waterproof and fully biodegradable tableware structure 100, which includes: a biodegradable paper substrate 10 having a first surface (inner surface) 110 and a second surface 120; A biodegradable waterproof membrane 20 is formed on the first surface 110; and a second biodegradable waterproof membrane 30 is formed on the second surface (outer surface) 120.

As shown in FIG. 1B, the second embodiment is a waterproof and fully biodegradable tableware structure 100, which includes: a biodegradable paper substrate 10; and a biodegradable waterproof membrane 20 formed on the biodegradable paper substrate One surface of the material 10, such as a first surface 110 or a second surface 120, can be applied to occasions where only one-sided coating is required.

As shown in Fig. 2, Fig. 3A, Fig. 3B and Fig. 4, the detailed content of the above-mentioned embodiments will be explained again as follows:

The biodegradable paper substrate 10 is mainly used as the structure of the product to maintain the shape required for the use of tableware for various purposes, so that different tableware can perform their functions. For example, when the biodegradable paper substrate 10 is used as a plate-shaped body 410, it can form a plate-shaped tableware 411 on which food is placed, or can also be used as a substrate for other-shaped tableware.

In addition, when the biodegradable paper substrate 10 is formed as a straw body 420, it can form a tableware used as a straw 421; and when the biodegradable paper substrate 10 is formed as a box-shaped body 430, it A food box body 431 for accommodating food can be formed.

The straw 421 and the food box 431 can also be made into a plate-shaped, waterproof and fully biodegradable tableware structure 100, and then made into the straw 421 and the food box 431 according to the relevant process of manufacturing the straw or box.

The biodegradable paper substrate 10 can be a PLA (poly lactide; polylactic acid) body or a paper substrate. In order to prevent the biodegradable paper substrate 10 from being deformed or even unusable due to contact with moisture, At least one surface of the biodegradable paper substrate 10, such as a first surface 110 and/and a second surface 120, can form a biodegradable waterproof membrane 20 or/and a second biodegradable waterproof membrane 30, respectively.

The biodegradable waterproof membrane 20 is biodegradable to meet the requirements of environmental protection, so it can be coated with a Curdlan solution or a seaweed (JELLY T) solution. By coating the carderlan gum solution or the seaweed gum solution tightly on the first surface 110, the biodegradable paper substrate 10 can be effectively protected.

The same second biodegradable waterproof membrane 30 is also biodegradable to meet the requirements of environmental protection, so it can also be coated with a calderan solution or a seaweed solution. Similarly, by coating the carderan gum solution or the alginate solution coating tightly on the second surface 120, the biodegradable paper substrate 10 can also be effectively protected.

Since the calderan gum and seaweed gum are a kind of food material, not only can they be completely biodegraded, when the calderan gum or seaweed gum comes into contact with food, there will be no food safety concerns at all. In addition, the calderan gum is made into After the carderlan solution is coated, its temperature resistance can reach up to 120℃, so in addition to being waterproof, it has the effect of increasing heat resistance.

As shown in FIG. 5, this method embodiment provides a method S100 for manufacturing a fully biodegradable tableware, which includes: providing a biodegradable paper substrate S10; applying a liquid calderan solution S20; and performing low-temperature drying S30 ; Carry out product forming S40; and carry out high temperature drying S50.

A biodegradable paper substrate S10 is provided, which mainly provides a biodegradable sheet-shaped paper substrate, and has a first surface 110 and a second surface 120.

Coating the liquid carderan gum solution S20, which is to coat the liquid carderan gum 20 on the first surface 110 and/or the second surface 120 of the biodegradable paper substrate 10. It has the characteristics of biodegradable, heat-resistant and waterproof, so that the biodegradable paper substrate 10 can be made into a waterproof and fully biodegradable substrate 100.

Carry out low-temperature drying S30, which is to dry the waterproof and biodegradable substrate 100 at a temperature below 80°C (inclusive) to become a substrate to be processed. At this time, the carderan on the substrate to be processed It will be in a solid state, so it is beneficial to the storage, handling, and subsequent production of the substrate to be processed.

Perform product forming S40, which is to process the substrate to be processed according to the manufacturing process of the product to be processed to produce a molded product such as a straw 421 or a lunch box 431. The material may be bent or folded, and for structural stability, there will be at least one bonding portion 440.

Carry out high-temperature drying S50, which is to heat the molded product at a temperature above 130°C (inclusive). At this time, the heated Calderan will be melted again, and then cross-linked, and finally the bonding part 440 is in the card When the Delan glue is irreversible (it cannot be hot melted again), it is sealed and bonded to each other, and the Delan glue in other parts will also form an irreversible heat-resistant waterproof membrane.

When the above-mentioned molded product is a straw 421, it will use the processing and forming method of the straw 421 to roll the substrate to be processed into a tube, and make the substrate to be processed have a joint 440 overlapping each other, and then apply the entire straw 421 Heat at a temperature above 130°C (inclusive).

As shown in Figure 6, after the straw 421 is solidified and formed, in order to avoid damage to the straw 421 caused by mechanical processing, the long tube can be cut with a laser 50 to cut the length of the general straw 421, or when cutting Or, after cutting, the end of the straw 421 can be further cut into an oblique angle 422, so that when the straw 421 is used, the sealing film of the beverage cup can be easily pierced.

However, the above-mentioned embodiments are used to illustrate the characteristics of the present invention, and their purpose is to enable those who are familiar with the technology to understand the content of the present invention and implement them accordingly, rather than limiting the patent scope of this creation, so everything else does not depart from the present invention. The equivalent modification or modification completed by the spirit of the disclosure should still be included in the scope of patent application described below.

100‧‧‧Waterproof and biodegradable tableware structure/Waterproof and biodegradable substrate 10‧‧‧Biodegradable paper substrate 110‧‧‧First surface 120‧‧‧Second Surface 20‧‧‧Biodegradable Waterproof Membrane/Cadelan Gum 30‧‧‧Second Biodegradable Waterproof Membrane 410‧‧‧Plate body 411‧‧‧Plate tableware 420‧‧‧Suction tube body 421‧‧‧Straw 422‧‧‧Bevel 430‧‧‧Box-shaped body 431‧‧‧Food Box 440‧‧‧Joint 50‧‧‧Laser S100‧‧‧The manufacturing method of fully biodegradable tableware S10‧‧‧Provide a biodegradable paper substrate S20‧‧‧coating liquid calderan solution S30‧‧‧Low temperature drying S40‧‧‧Product molding S50‧‧‧High temperature drying

[Figure 1A] is an exploded view of the first embodiment of a waterproof and biodegradable tableware structure of the present invention; [Figure 1B] is an exploded view of a second embodiment of a waterproof and biodegradable tableware structure according to the present invention; [Fig. 2A] Fig. 1 is an embodiment of the invention applied to the board; [Figure 2B] Figure 2 of an embodiment of the present invention applied to a board; [Figure 3A] Figure 1 of an embodiment of the present invention applied to a straw; [Figure 3B] Figure 2 of an embodiment of the present invention applied to a straw; [Figure 4A] Figure 1 of an embodiment of the present invention applied to the box body; [Figure 4B] Figure 2 of an embodiment of the present invention applied to the box body; [Figure 5] is an embodiment diagram of a manufacturing method of a fully biodegradable tableware according to the present invention; and [Fig. 6] It is a diagram of an embodiment of cutting by laser according to the present invention.

100‧‧‧Waterproof and biodegradable tableware structure

10‧‧‧Biodegradable paper substrate

110‧‧‧First surface

120‧‧‧Second Surface

20‧‧‧Biodegradable waterproof membrane

30‧‧‧Second Biodegradable Waterproof Membrane

Claims (7)

A waterproof and fully biodegradable tableware structure, comprising: a biodegradable paper substrate with a first surface and a second surface; and a biodegradable waterproof membrane formed on the first surface and/or the On the second surface; wherein the biodegradable waterproof membrane is a casterlan solution coating. In the tableware structure described in item 1 of the scope of patent application, the coating system of the calderan gum solution can withstand a temperature of 130°C. For the tableware structure described in item 1 or item 2 of the scope of patent application, the biodegradable paper substrate is a plate-shaped body, a straw-shaped body, or a box-shaped body. A method for manufacturing a fully biodegradable tableware, which includes: providing a biodegradable paper substrate, which has a first surface and a second surface; coating a liquid carderan gum solution, which is a liquid carderan Glue solution is applied on the first surface and/or the second surface to make the biodegradable paper substrate become a waterproof and fully biodegradable substrate; it is dried at a low temperature at 80°C (including ) The waterproof and biodegradable substrate is dried at the following temperature to produce a substrate to be processed; product forming is performed by performing product forming processing on the substrate to be processed to produce a molded product with At least one joint; and high-temperature drying, which heats the molded product at a temperature above 130° C. (inclusive), and seals and adheres the joint to each other. According to the manufacturing method described in item 4 of the scope of patent application, the molded article is a straw or a lunch box. The manufacturing method described in item 5 of the scope of patent application, wherein the processing of the straw The forming method is to roll the substrate to be processed into a tube. According to the manufacturing method described in item 6 of the scope of patent application, it further includes a cutting step, which is to cut the straw with a laser.

Images