Plastic bags are bags made of plastic as the main raw material. They are indispensable items in people’s daily life and are often used to hold other items. It is widely used because of its cheapness, extremely light weight, large capacity and easy storage. How is the thickness of plastic ba...
How to measure the specifications of plastic bags? There are various types of plastic bags, and the measurement methods are also different. Today, we will share the measurement methods of 3 common plastic bags in daily life:
Measurement of flat pockets: The method of measuring flat pockets is ver...
In the pharmaceutical industry, plastics can be used to hold medicines, but not all plastics can hold medicines and must be qualified medical plastics. So, what kind of drugs can medical plastics hold?
There are many types of medicines that can be contained in medical plastic bottles, which can b...
Plastics of different materials have different melting points:
Polypropylene: The melting point temperature is 165°C—170°C, the thermal stability is good, the decomposition temperature can reach above 300°C, and it begins to turn yellow and deteriorate at 260°C in the case of contact with o...
Woven bag is a kind of plastic, and its raw materials are generally polyethylene, polypropylene and other chemical plastic raw materials. , bagged.
As far as the sewing process indicators are concerned, which ones should we focus on?
Sewing strength index: The main factors that affect the suture...
Is it harmful to put plastic bags in the refrigerator? In response to this, there have also been experiments conducted by relevant research institutions, and the final experiments have shown that the so-called “plastic bags cannot be placed in the refrigerator” are pure rumors.
The ex...
In this issue, we continue our understanding of plastics from a chemical perspective.
Properties of plastics: The properties of plastics depend on the chemical composition of the subunits, how those subunits are arranged, and how they are processed. All plastics are polymers, but not all polymers...
We usually learn about plastics in terms of appearance, color, tension, size, etc., so what about plastics from a chemical point of view?
Synthetic resin is the main component of plastic, and its content in plastic is generally 40% to 100%. Due to the large content and the properties of resins th...
Is the degradation of plastic a chemical change or a physical change? The obvious answer is chemical change. In the process of extrusion and heating molding of plastic bags and under the influence of various factors in the external environment, chemical changes such as relative molecular weight r...
It’s Mid-Autumn Festival again, and the full moon is here again. Although we are far apart, you and I share the same bright moon. Will the Mid-Autumn Festival be celebrated in your hometown? How much do you know about the Mid-Autumn Festival? This time, LGLPAK LTD shares with you the origin...
Pulp is a fibrous material obtained from plant fibers by different processing methods. It can be divided into mechanical pulp, chemical pulp and chemical mechanical pulp according to the processing method; it can also be divided into wood pulp, straw pulp, hemp pulp, reed pulp, sugarcane pulp, ba...
The quality of pulp is mainly determined by its fiber morphology and fiber purity. The properties of these two aspects are mainly determined by the variety of raw materials used, as well as the manufacturing method and processing depth.
In terms of fiber morphology, the main factors are the avera...
