ในช่วงหลายปีที่ผ่านมาผู้ผลิตขายส่งกล่องดีบุกแบบกำหนดเองได้รับความนิยม บรรจุภัณฑ์ดีบุกกลายเป็นส่วนสำคัญของอุตสาหกรรมต่างๆโดยมีอาหารอยู่เหนือพวกเขา ทุกๆวันมีกระป๋องดีบุกเข้าสู่ตลาดหลายล้านกระป๋อง
เพื่อให้แน่ใจว่าคุณภาพของกระป๋องเหล่านี้มีมาตรฐานการตรวจสอบหลายประการเหมือนเดิม อย่างไรก็ตามดูเหมือนว่าแม้จะมีความพยายามอย่างมากในระบบควบคุมคุณภาพของโรงงาน แต่ก็ยังมีกระป๋องที่ชำรุดอยู่เล็กน้อย
กระป๋องเหล่านี้มักจะส่งผลกระทบในทางลบต่อความสมบูรณ์ของบรรจุภัณฑ์ดีบุก นอกจากนี้บางครั้งอาจปนเปื้อนในผลิตภัณฑ์อาหารซึ่งเป็นอันตรายอย่างยิ่งต่อสุขภาพของมนุษย์ ดังนั้นผู้ผลิตควรรวมการดำเนินการควบคุมคุณภาพไว้ในโรงงานผลิตของตน
อย่างไรก็ตามดูเหมือนว่าการดำเนินการควบคุมคุณภาพที่สร้างขึ้นจะมีขีดความสามารถที่ จำกัด ในแง่ของเคมีวิเคราะห์ เพื่อให้แน่ใจว่าคุณภาพของกระป๋อง บริษัท ต่างๆต้องพึ่งพาห้องปฏิบัติการอิสระหรือห้องปฏิบัติการของผู้ผลิต
These laboratories help find and characterize the problems with the cans. In addition, they assist in removing the root cause by troubleshooting the operations. There are different types of technology that you use for the identification of the problem.
In this article, we are going to focus on some of these technologies. So, without any further delay, let us get straight to the point!
Identifying and characterizing Tin Box Defects
For more than 100 years, the food packaging industry has been using tin-plated steel cans to preserve and increase food life. Over the years, there has been great progress in terms of box designs, materials, external or internal protective coating, chemical process monitoring, manufacturing equipment, quality instrumentation, and quality control methods.
The quality and the integrity of the tin box depend upon their manufacturers. They need to ensure that cans or boxes are of high quality. Once, they are sure of the quality, the next step is to send them to the food industry for food storing purposes.
Despite the rigorous quality control procedures, something defective tin boxes end up in the market. They manufacturer learns about them via customer complaints. In this case, they use their internal and incoming quality controls to eliminate the respective problem in the next batch.
In worst cases, the manufacturer might have to shut down the production line in order to determine the cause of the defect. After all, determining the root of the problem would be highly important to the manufacturer.
Manufacturers do use a number of technologies to determine the defect in an effective and efficient manner.
Techniques and Technology
Major tin can manufacturer today produce several hundred thousand to several million cans every day. Therefore, any defect identified during the quality control procedure will have a major impact.
It means that all the cans produced in that particular batch are highly likely to have that particular defect. This is something the manufacturer cannot afford every now and then.
In most tin-plated and aluminum steel cans, the manufacturer applies an organic protective coating on the interior of the can. The purpose of the coating is to prevent the food from having direct contact with the tin.
Checking the metal exposure inside the can is among the major quality control tests. The manufacturer use Enamel Rater instrumentation to determine metal exposure. What happens is, you fill a sampling can with electrolyte.
The electrolyte than absorbs into the liquid and it comes in contact with the side or the bottom of the can. Then, you will apply voltage to the can. The voltage needs to be directly proportional to the amount of exposed metal.
In case the amount of exposed metal is great, the can is rejected. However, an extremely small amount of exposed metal is acceptable. There are gas bubbles that are due to the reversing system’s polarity. The electrochemical reactions cause these bubbles.
The inspector uses these bubbles to identify the exposed area. In case, the area is great, the troubleshooting process starts effectively.
Low Power Microscope Inspection
Manufacturers of custom tin box wholesale use both the visual examination of the cans along with a low-power microscope to identify the metal exposure defects. Generally, the manufacturer uses a stereo microscope.
However, there are other types of microscopes available as well. Fisheyes and craters are among the usual defects that manufacturers need to determine. They are the circular dewetting of the coating on the metal. The coating is generally from a solid contaminant. In some cases, it is even the incompatible liquid including machine oil mist.
Sometimes the exposed metal is due to coating’s broken blisters. These occur when the can is in curing oven for coating. The exposure of metal to the product leads to two main problems, first metal corrosion and second migration of metal into the product.
The metal corrosion eventually results in leaking of the product. Something, all manufacturer’s needs to avoid at all cost. In most cases, the manufacturer lacks the required analytical instrumentations for contaminant identification.
Therefore, they would have to send the sample to some other laboratory for further analysis.
Another common test that tin-box manufacturers conduct to check the adhesion characteristics of both the external as well as the internal coating. The normal adhesion test includes soaking the cans into hot water after cutting open the can’s sidewalls.
After removing the cans from the hot water, they are dried and scribing of the coating is done. Next, you have to apply tape over the scribe marks. Then, instantly pull that tap off. In case, some coating comes off with tape, the manufacturers instantly have to take the next step.
They need to start the troubleshooting process immediately. Coat adhesion failure is often the result of either under-cured or over-cured conditions. In addition, surface contaminants can also result in this problem.
For adhesion failure analysis, the manufacturer generally has to turn towards analytical laboratories.
Analytical laboratories are well-equipped with a number of instrumentations that they use for analyzing the custom tin box wholesale. Below, we have listed these instrumentations.
There are two different types of optical microscope, compound, and stereomicroscope. You can use both these microscopes depending on the defect observing filters and the lighting conditions. In certain cases, these microscopes are also used for performing microchemical tests.
These tests are effective when it comes to characterizing contaminants. In addition, you can use them for examining metal’s polished cross-sections and fractures.
Scanning Electron Microscope
Scanning Electron Microscope (SEM) is another popular device used for the inspection of custom tin box wholesale. They sometimes are used together with optical microscopes in order to determine the defects of the cans.
Usually, the laboratories use this particular method for inorganic material’s characterizing. In addition, it is possible to take images that are clear. Thus, making it easier to analyze the fractures of the cans.
Generally, people call Infrared Spectroscopy the Fourier Transform Infrared spectroscopy. The main purpose of these tools is to identify organic materials such as varnishes, inks, or oils. They also help in identifying cleaning chemical surfactants.
We often see these surfactants in manufacturing operations.
Importance of the Right Manufacturer
For custom tin box wholesale, it is vital for you to make the right decision in terms of tin-box manufacturer. Relying on an amateur would eventually lead to a bad brand name. You simply cannot go about choosing any random gift tin box supplier.
You need to pay heed to their quality control systems to ensure that they will deliver only the top-notch quality tin boxes. Among several tin-box manufacturers, you have Tin-Packing. They are the leading gift tin box supplier.
They would deliver the highest quality tin boxes. To assure their quality, they make their tin boxes undergo rigorous analyzing and testing techniques. They make sure that every tin box from there end is perfect and error-free.
After all, the objective of ดีบุกบรรจุภัณฑ์ is to have a smooth and long-lasting relationship with their current and potential consumers.