Method for manufacturing protective film

Abstract

The manufacturing method of the protective film comprises the following steps: providing a film body; performing ion bombardment on the membrane body to clean the surface of the membrane body; plating a metal layer on the first surface of the film body, wherein the metal layer comprises at least one of silver and platinum; forming an adhesive layer on the second surface of the film body; and forming a peeling layer on the adhesive layer. The protective film provided by the method has anti-oxidation and anti-corrosion effects, has a relatively strong inhibition effect on viruses and germs, and can protect a carrier and carrier inclusions and ensure stable chemical properties of the carrier and the carrier inclusions after being pasted on the carrier such as a tray.

Description

Technical Field

[0001] The invention relates to the field of film manufacturing, and in particular to a method for manufacturing a protective film. Background Art

[0002] The industry has certain requirements for chemical or medical trays. Especially when carrying various samples, these trays need to prevent the diffusion of impurities, prevent oxidation, have good biocompatibility and ensure their chemical properties are stable; moreover, their surfaces need to have a certain inhibitory effect on viruses and bacteria.

[0003] Therefore, it is necessary to provide a method for manufacturing a protective film to overcome the above defects. Summary of the invention

[0004] The purpose of the present invention is to provide an improved method for manufacturing a protective film, which has anti-oxidation and anti-corrosion effects and a strong inhibitory effect on viruses and bacteria. When it is pasted on a carrier such as a tray, it can protect the carrier and the contents of the carrier and ensure its stable chemical properties.

[0005] To achieve the above object, the method for manufacturing a protective film of the present invention comprises the following steps:

[0006] Providing a membrane body;

[0007] performing ion bombardment on the membrane body to clean the surface of the membrane body;

[0008] Plate a metal layer on the first surface of the membrane body, wherein the metal layer includes at least one of silver and platinum;

[0009] forming an adhesive layer on the second surface of the film body; and

[0010] A release layer is formed on the adhesive layer.

[0011] Compared with the prior art, the manufacturing method of the protective film of the present invention first performs ion bombardment on the membrane body to clean the surface of the membrane body, and then plates a metal layer on the first surface of the membrane body, the metal layer contains at least one of silver and platinum, and then forms an adhesive layer and a peeling layer in sequence on the second surface of the membrane body. Therefore, when in use, the peeling layer is removed to expose the adhesive layer, and the adhesive layer is pasted on the bottom of the carrier. The metal layer or alloy layer of silver or platinum is pasted on the surface of the carrier as the outermost layer of the protective film, thereby inhibiting viruses and bacteria. Moreover, the metal layer has antioxidant and corrosion-resistant effects, can protect the carrier and the contents of the carrier, and ensure its stable chemical properties.

[0012] Preferably, the ion bombardment comprises: drawing the vacuum degree in the vacuum evaporation coating chamber to 2.5×10 -1Pa, argon gas is filled into the vacuum evaporation coating chamber to adjust the vacuum degree in the vacuum evaporation coating chamber to 1.5-3.5Pa.

[0013] Preferably, the flow rate of the argon gas is maintained at 1000-1200 sccm.

[0014] Preferably, the ion bombardment includes: using a high-power medium-frequency pulse or a high-power direct current power supply, controlling the voltage to be 3.0-4.0 kV, and the current to be 0.8-1.2A.

[0015] Preferably, the ion bombardment time is 20-40 seconds.

[0016] Preferably, forming the metal layer comprises: controlling the vacuum degree of the vacuum evaporation coating chamber to be (2.0-3.0)×10 - 3 Pa, nitrogen is introduced, the vacuum degree of the vacuum evaporation coating chamber is adjusted to 0.5-1.5 Pa, the target material is sputtered to form the metal layer.

[0017] Preferably, forming the metal layer further comprises: using a silver target and a platinum target, controlling the negative bias voltage of the workpiece to be 150V-200V, and the bias frequency to be 120-150kHz.

[0018] Preferably, the thickness of the metal layer is 10-15 nanometers. DETAILED DESCRIPTION

[0019] The following is a further description of the manufacturing method of the protective film of the present invention in conjunction with the examples, but the present invention is not limited thereto. The method of the present invention is intended to provide a method for manufacturing a protective film, the protective film provided by the protective film has the effects of anti-oxidation and anti-corrosion, and has a strong inhibitory effect on viruses and bacteria. The protective film is pasted on a carrier such as a tray to protect the carrier and the contents of the carrier, and ensure its stable chemical properties.

[0020] In one embodiment of the method for manufacturing the protective film of the present invention, the following steps are included:

[0021] Providing a membrane body;

[0022] performing ion bombardment on the membrane body to clean the surface of the membrane body;

[0023] Plate a metal layer on the first surface of the membrane body, wherein the metal layer includes at least one of silver and platinum;

[0024] forming an adhesive layer on the second surface of the film body; and

[0025] A release layer is formed on the adhesive layer.

[0026] The manufacturing method of the protective film of the present invention first performs ion bombardment on the film body to clean the surface of the film body, and then plates a metal layer on the first surface of the film body, the metal layer contains at least one of silver and platinum, and then forms an adhesive layer and a peeling layer in sequence on the second surface of the film body. Therefore, when in use, the peeling layer is removed to expose the adhesive layer, and the adhesive layer is pasted on the bottom of the carrier. The metal layer or alloy layer of silver or platinum is pasted on the surface of the carrier as the outermost layer of the protective film, thereby inhibiting viruses and bacteria. Moreover, the metal layer has the effect of anti-oxidation and anti-corrosion, can protect the carrier and the contents of the carrier, and ensure its stable chemical properties.

[0027] As an example, the membrane body is made of PE raw material, mainly polyethylene, with a thickness of 50-60 microns. First, the clean membrane body is placed in a vacuum evaporation coating chamber, and ion bombardment is performed on the surface of the membrane body, including the first surface and the second surface opposite to the membrane body. Specifically, the vacuum degree in the vacuum evaporation coating chamber is drawn to 2.5×10 -1 Pa, fill the vacuum evaporation coating chamber with argon gas, for example, the flow rate of argon gas is preferably maintained at 1000-1200sccm, so that the vacuum degree in the vacuum evaporation coating chamber is adjusted to 1.5-3.5Pa. Use a high-power medium-frequency pulse or high-power DC power supply, control the voltage to 3.0-4.0kV, and the current to 0.8-1.2A. Under this condition, the argon gas is ionized and bombards the surface of the membrane body for 20-40 seconds.

[0028] Next, after the ion bombardment is completed, a metal layer is plated on the first surface of the film body in the vacuum evaporation coating chamber. As an embodiment, the metal layer is formed by physical vapor deposition. Specifically, the vacuum degree of the vacuum evaporation coating chamber is controlled to be (2.0-3.0)×10 -3 Pa or more, nitrogen is introduced, the vacuum degree of the vacuum evaporation coating chamber is adjusted to 0.5-1.5Pa, the target material is sputtered, preferably, a silver target and a platinum target are used, the negative bias voltage of the workpiece is controlled to be 150V-200V, the bias frequency is 120-150kHz, the platinum target current is 0.5A, and the silver target current is 2.5A, so as to deposit and form a metal layer containing silver and / or platinum, which has a strong antibacterial effect. Preferably, the thickness of the metal layer is 10-15 nanometers.

[0029] Next, an adhesive layer and a peeling layer are sequentially formed on the second surface of the film body. Optionally, the adhesive layer is an elastic pressure-sensitive layer, and the thickness of the mounting adhesive is 12-16 microns. The peeling layer is a single silicon PET peeling layer, and the thickness is 20-25 microns.

[0030] During operation, the peeling layer is removed to expose the adhesive layer, and the adhesive layer is pasted on the bottom of a pallet or other carrier. The metal layer is laid flat on the surface of the pallet or carrier, which has a strong inhibitory effect on viruses and bacteria. When the layer loses its effectiveness, the entire layer can be replaced.

[0031] In summary, the manufacturing method of the protective film of the present invention first performs ion bombardment on the membrane body to clean the surface of the membrane body, and then plates a metal layer on the first surface of the membrane body, the metal layer contains at least one of silver and platinum, and then forms an adhesive layer and a peeling layer in sequence on the second surface of the membrane body. Thus, when in use, the peeling layer is removed to expose the adhesive layer, and the adhesive layer is pasted on the bottom of the carrier. The metal layer or alloy layer of silver or platinum is pasted on the surface of the carrier as the outermost layer of the protective film, thereby inhibiting viruses and bacteria. Moreover, the metal layer has antioxidant and anti-corrosion effects, can protect the carrier and the contents of the carrier, and ensure its stable chemical properties.

[0032] The above disclosure is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A method for manufacturing a protective film, characterized in that: The following steps are involved: Providing a membrane body; performing ion bombardment on the membrane body to clean the surface of the membrane body; Plate a metal layer on the first surface of the membrane body, wherein the metal layer includes at least one of silver and platinum; forming an adhesive layer on the second surface of the film body; as well as A release layer is formed on the adhesive layer.

2. The method for producing a protective film according to claim 1, wherein: The ion bombardment includes: drawing the vacuum degree in the vacuum evaporation coating chamber to 2.5×10 -1 Pa, argon gas is filled into the vacuum evaporation coating chamber to adjust the vacuum degree in the vacuum evaporation coating chamber to 1.5-3.5Pa.

3. The method for producing a protective film according to claim 1, wherein: The flow rate of the argon gas was maintained at 1000-1200 sccm.

4. The method for manufacturing a protective film according to claim 1, wherein: The ion bombardment includes: using a high-power medium-frequency pulse or a high-power direct current power supply, controlling the voltage to be 3.0-4.0 kV, and the current to be 0.8-1.2A.

5. The method for manufacturing a protective film according to claim 1, wherein: The ion bombardment time is 20-40 seconds.

6. The method for manufacturing a protective film according to claim 1, wherein: The metal layer is formed by controlling the vacuum degree of the vacuum evaporation coating chamber to be (2.0-3.0)×10 -3 Pa, nitrogen is introduced, the vacuum degree of the vacuum evaporation coating chamber is adjusted to 0.5-1.5 Pa, the target material is sputtered to form the metal layer.

7. The method for producing a protective film according to claim 6, wherein: Forming the metal layer also includes: using a silver target and a platinum target, controlling the negative bias voltage of the workpiece to be 150V-200V, and the bias frequency to be 120-150kHz.

8. The method for manufacturing a protective film according to claim 1, wherein: The thickness of the metal layer is 10-15 nanometers.