Today, let us get to know the paper cups that can be seen everywhere in daily life.

Let's get to know paper cups together

The history of disposable paper cups is not long. According to relevant information, the earliest patented paper cups appeared in the 20th century. In 1907, a Boston attorney named Lawrence Luellen made a disposable drinking cup out of paper, and Luellen's paper cup was awarded a U.S. patent in 1912.

Disposable paper cups have been widely used in my country for nearly 20 to 30 years. Today's paper cups are not only used to supply drinks such as coffee and tea, but also used to hold food, such as ice cream and soup, etc., go to any office, fast food restaurant, etc. , Disposable paper cups will be seen at large-scale events.

Classification of paper cups: There are roughly three types of disposable paper cups currently on the market

The first one is made of cardboard, which is mainly used to hold dry food such as popcorn and fried chicken, and cannot hold water;

The second is a waxed paper cup, with a layer of paraffin on the inner wall to waterproof, which can be used to hold frozen drinks, carbonated drinks, etc., and cannot hold hot water that is too high;

The third type is the "paper-plastic cup", which is also the most common and most used type of paper cup on the market. The outer wall of the cup is coated with a layer of paper, and the inner wall is coated with a layer of polyethylene or polypropylene coated paper, which can be used for both cold and hot drinks. Paper-plastic cups manufactured according to my country's industry standards have no problem in terms of safety.

Due to the enhancement of people's awareness of environmental protection and the guidance of relevant national policies, manufacturers are also looking for a degradable raw material to replace the plastic coating on the coated paper. At present, most of the research and application are plastic-free coatings.

Plastic-free paper cups can be degraded while meeting the safety and hygiene requirements of food contact products to achieve green, ecological and environmental protection purposes.

Notice: Paper cups are not allowed to hold alcoholic beverages, as alcohol is highly permeable and can easily lead to leakage.

Cup Size: Paper cups are measured in ounces (oz). There are 12 ounces, 16 ounces, 22 ounces paper cups that are common in the market.

Ounce is a unit of weight, 1 ounce weighs about 28.34 milliliters of water, and can usually be expressed as: 1 ounce (oz) is about 30 milliliters. For example, a 16oz paper cup has a capacity of nearly 500ml.

National standard for paper cups: GB/T 27590-2011, the new national standard puts forward higher requirements for paper cup raw materials, additives, packaging, printing, etc. to ensure the safety of consumers.

Shelf life of paper cups: According to the process conditions of the enterprise, the type of packaging, etc., the shelf life is generally 1 to 5 years.

Health hazards of unqualified paper cups: raw materials are moldy or contaminated during transportation and storage, the quality of printed inks is not up to standard, chemical additives are not used in the surface treatment of paper cups, and industrial wax or recycled polyethylene may be used to reduce costs. pose health risks.

In 2019, my country conducted spot checks on 156 batches of paper cup products produced by 155 enterprises in 20 provinces (autonomous regions and municipalities), and no problems of excessive heavy metals, formaldehyde and other harmful substances were found. As early as 2007, paper cups without production licenses have faded out of the market.

Therefore, the paper cups that are officially sold in the Chinese market should not have the above safety hazards.

Kraft paper can be recycled many times, and the price is not high, the printing cost is low, and no lamination is required, saving costs. Because of these good properties, kraft paper packaging is very popular. Kraft paper is used as a packaging material and is very strong, usually yellowish-brown. Kraft paper is made from kraft softwood pulp, which is beaten and made on a Fourdrinier paper machine. It can be used as cement bag paper, envelope paper, glue-sealed paper, asphalt paper, cable protection paper, insulating paper, etc. The following two custom cases of kraft paper packaging and printing are shared below.

1. The use of kraft paper packaging box printing in the food field. I believe that when you go to eat KFC or McDonald's, you can see the shadow of kraft paper. KFC and McDonald's are indeed packaged with food-grade kraft paper. Usually, this type of kraft paper is used for packaging. The gram weight of the kraft paper is relatively low, generally about 40 grams. It is made of all wood pulp and needs to fully meet the food-grade standards. This type of packaging kraft paper is good, because the quality is good, and the price is naturally not low.

2. The use of kraft paper packaging box printing in the IT field. At present, the most classic is the Xiaomi mobile phone box. With the hot sale of Xiaomi mobile phones, the Xiaomi mobile phone box has naturally attracted the attention of many people. Like the Xiaomi mobile phone, the Xiaomi mobile phone box The high-weight kraft paper used has a special color and a very high burst resistance. The kraft paper packaging box made can well protect the Xiaomi mobile phone during transportation and will not be damaged due to pressure or other reasons. Therefore, the Xiaomi mobile phone The box can withstand hundreds of kilograms of pressure without deformation.

The above list is the use of kraft paper packaging in two industries. There are also classic cases of using kraft paper in other industries. The benefits of kraft paper packaging are determined by the performance of kraft paper. Because the texture of kraft paper is unique, and the color can bring people a sense of comfort, of course, the most important thing is that kraft paper has the durability that other papers do not have.