In paper, plastic, metal, and glass packaging materials, the price of paper packaging materials is the cheapest, and can be recycled and reused, which is conducive to environmental protection. Therefore, paper packaging, especially corrugated cartons, is the best in the field of product packaging. With the development of packaging and printing technology and the fierce competition in the market, people are increasingly demanding product packaging. A considerable number of cartons have transitioned from the era of the original touch detection to the era of scientific testing with related packaging inspection instruments. According to incomplete statistics, carton factories equipped with related testing equipment accounted for 40% of all carton plants, and 60% of the manufacturers did not have equipment. However, in cartons that already have relevant inspection instruments, less than 60% of these instruments have actually been used effectively in the production process. How to properly use these detection instruments becomes the focus of carton enterprises. 5, appearance. The surface painted parts are smooth, smooth, uniform color, no spots, bubbles, delamination; chrome-plated parts without burns, chrome thorns, delamination; black parts uniform color; other parts of the surface without obvious bumps, dents, rust, burrs and so on. Plate And Dish,Melamine Plates,Melamine Dinnerware,Melamine Sushi Plates Nanjing Demei Melamine Wares Co.,Ltd , https://www.dm-melaminewares.com
Some suggestions for purchasing carton inspection instruments
Corrugated box items to be tested
First, according to national standards for paper, corrugated cardboard and carton testing items are:
1. The items for checking the base paper include: quantitative, ring pressure index, crack length, tightness, moisture, etc.;
2, the detection of corrugated board projects are: appearance quality, moisture, burst strength, side pressure strength, adhesive strength, thickness and other items;
3, the detection of corrugated boxes of items: appearance quality, moisture, compressive strength, stacking strength and other items.
Second, according to the export commodity packaging packaging corrugated paper box inspection regulations, divided into the carton appearance, performance, type of three major testing items:
1. Appearance inspection is further subdivided into:
è½» Light defect inspection items: signs, printing, indentation lines, knife edges, box nails, joints, twists, and flaps.
é‡ Heavy defect inspection items: internal dimensions, thickness, moisture content.
2, performance test items: burst strength, side pressure strength, adhesive strength, puncture strength, anti stress test and other items.
3, type test items: stacking test, vertical impact drop test and other items.
To integrate the above test indicators, the following test instruments shall be equipped for the detection of all items:
Diameter ruler, steel tape measurer, moisture analyzer, quantitative sampler, electronic balance, thickness tester, burst resistance meter (also called burst strength tester), cardboard compression tester (also called compression tester), ring pressure sampling Device, ring pressure center plate (also called ring pressure center mold), edge pressure sampler, bond strength test frame (also called peel test frame), folding resistance tester, cracking tester (tensile tester), cardboard pierce Strength tester, carton compression tester (also known as carton compression tester), drop tester and other instruments.
High-quality carton detection instrument features
High-quality carton detection equipment should be comprehensively analyzed from the following aspects:
First, as a measuring instrument for carton testing instruments, the first measurement accuracy is higher. It is necessary to explain here that accuracy and resolution are two different concepts. Accuracy, also called accuracy, refers to the ability of the measuring instrument to give a response that is close to the true value. It is used to indicate the degree of system error and random error in the measurement result, and the average value of multiple measurements is close to the true value. . Resolving power is the minimum reading given by the instrument's indication. High resolution of the instrument does not mean high accuracy; however, high-accuracy instruments must have relatively high resolution.
Want to understand the accuracy of a carton detection instrument can be obtained in several ways. 1. Check the contact information of the corresponding manufacturer or merchant on the Internet, log on the relevant official website of the instrument, check the corresponding technical parameters, and if not, call and inquire, which is the most convenient and quick way. 2, look through the relevant magazines to view. 3. Participate in related exhibitions and inquire to find out or view physical brand name logos to obtain information. 4. It is best to consult the relevant inspection reports issued by third-party authorities. This is the most convincing.
Second, a high degree of automation, upgrade space. Different manufacturers conduct comprehensive considerations for different users, and the integrated functions are slightly different. There are roughly the following auxiliary functions: security protection function (some even multiple security protection), printing function, real-time clock, a variety of measurement unit conversion function, data automatic calculation processing function, data large-capacity storage function, fault notification function, sensor Non-linear correction function, connection to computer monitoring and control functions, etc. The more auxiliary functions of the instrument, the higher the degree of automation, the higher the requirement for the processing chip, and the manufacturing cost of the detection instrument is relatively high.
Third, the instrument configuration is high, the stability of its operation is strong. In order to achieve a high degree of automation, a high-end micro-processing chip must be used to rationally deploy the components to ensure the accuracy of the instrument and complete the test. The liquid crystal display is the current mainstream market indicator system, but at the same time the digital tube indication system still occupies a large part, and the original hand pin indication system has not completely exited the market yet. Micro-printers are mainly divided into needle type and thermal type printers, both of which have their own strengths. The data printed by the dot matrix printer is not easily faded and stored; the thermal printer is less noisy when printed, but it is easy to fade. It is recommended that you buy needles here (of course, you can also choose the thermal type). Firms with strong technical strengths have already begun to use dual operating systems for testing instruments. The so-called dual operating system means that the testing equipment can independently complete the entire testing process after it is powered on. After the operating system is installed on the computer, the entire testing process can be completed through the computer. . For example, our company (Hangzhou Huahan Paper Testing Equipment Co., Ltd.) developed the HH-NP5600 cardboard bursting resistance meter, HH-KY3000 cardboard pressure resistance tester and other testing instruments.
Fourth, pre-sales, sales, after-sales service in place. Mainly reflected in the timeliness of the handling of incidents, reasonable fees for maintenance costs outside the warranty period. Different manufacturers have different requirements for service, or it is verified by practice.
How to choose the testing instrument suitable for your own company
As a corrugated box company, where should we start to purchase the testing equipment suitable for the needs of our company? According to the current development scale of the company and the requirements of the customer, a best plan should be formulated to ensure that “the money is spent on the knifeâ€. According to the author's actual work experience, I believe that user companies can be divided into four categories:
1. Enterprises with cardboard production lines, routinely equipped with: inner diameter ruler, steel tape measure, electronic balance, quantitative sampler, thickness meter, moisture analyzer, bursting resistance meter (including paper bursting resistance meter and paperboard bursting resistance meter) , cardboard compression tester, ring pressure sampler, ring pressure center plate, edge pressure sampler, bond strength test frame. Conditions should also be equipped with folding-resistant instrument, surface absorption tester (measuring sizing), cracking instrument and carton compression tester, drop testing machine.
2, after the purchase of corrugated board for processing enterprises, generally should be equipped with: inner diameter ruler, steel tape, electronic balance, thickness meter, moisture analyzer, cardboard burst resistance meter, cardboard compression tester, edge pressure sampler. Conditions can be equipped with carton compression tester, drop tester.
3. Enterprises that produce color-printed paper cartons should generally be equipped with: paperboard burst resistance meter, paperboard compression tester, edge pressure sampler, surface absorption tester (measured sizing degree), ink layer friction tester, Density meter. Conditional can also be equipped with quantitative sampler, electronic balance, folding resistance meter, whiteness meter, smoothness meter, carton compression tester, drop tester.
4, the purchase of corrugated boxes of user companies, generally should be equipped with: inner diameter ruler, steel tape, moisture analyzer, cardboard burst resistance meter, cardboard compression tester, edge pressure sampler. Conditional can be equipped with a carton compression tester.
Things to be aware of when purchasing carton inspection equipment
1. Priority is given to professional manufacturers of detection equipment. The advantages are timely delivery, timely maintenance, and reasonable charge for repairs. The inadequacies are more stringent payments, and the vast majority of them are required to pay for goods before shipment. Here is how to identify the manufacturer is a real manufacturer, the most effective is the on-site inspection, there is no production and processing equipment in the factory area, the transmission of the value can be traced back to the national relevant measurement departments, etc.; and then through the relevant corporate documents, Such as business license, tax registration certificate.
2. When there is no suitable manufacturer, it is necessary to find a dealer to purchase. In the procurement process can not blindly coveted convenience, the full authority of the dealer to purchase a full set of testing equipment. Doing so will cause inconvenience and costly repairs in the future.
3. Do not blindly pursue famous brands. You should consider the actual situation of the company and spend less on purchasing high-precision instruments. Finding suitable testing instruments for their own companies not only saves companies on procurement costs but also indirectly drives the development of the testing instrument industry. With the competition in the market, the products will continue to innovate and improve, thereby promoting the continuous development of the testing instrument industry.
4, based on how to identify high-quality testing equipment after comparing goods, then determine how to further purchase.
The process of purchasing cartons
1. Gather at least three enterprise information that professionally produce testing instruments through the networks, newspapers and magazines, exhibitions, exhibitions, relatives, and friends;
2. Ask the following questions from one home to another: The company currently needs to check which of several strength tests the equipment is to be tested, and to know information such as the performance parameters of the testing equipment, after-sales service, and instrument discount prices;
3. Summarize the collected detailed information, combine with the actual situation of the company, organize related personnel to carry out comprehensive assessment, and determine the type and quantity of the current procurement testing instruments. According to the manufacturer's development of different priority procurement programs;
4. Based on the priority of the procurement plan, the manufacturer shall finally determine each item of the supply and sales contract, including the total amount, the payment method, the delivery method, and the time limit.
5, sign the supply and marketing contract, according to the contract terms.
How to identify the quality of carton testing equipment
Third-party authoritative organizations with inspection capabilities are entrusted to carry out tests on the following items of the instrument with the help of relevant special appraisal instruments to comprehensively assess whether they meet the national standards or the relevant regulations of the industry.
1, the accuracy of the instrument detection. Use a standard verification device that is 3-5 times more accurate than the device being tested to check its accuracy.
2. Whether the components affecting the accuracy are within the allowable error. If it is exceeded, make appropriate adjustments to it.
3, security protection. Exceeding 2%-10% of the upper limit of measurement, the instrument will automatically stop; when the moving parts reach the limit, they should stop automatically.
4, operating performance, control system functions. The key operation is normal, the display is clear and conspicuous, the print data is accurate, and the test process is continuous and complete.