Do not let the poor stationery hurt the child

Mr. Lee is at home in the fourth grade daughter, because the children class popular with fragrance stationery, his daughter is also commonly used pocket money in several stationery wholesale market to buy some fragrance stationery, stationery in the work of this pencil, eraser and ball And so can be issued scent, apple flavor, strawberry flavor and so on.Then he slowly found that contact with these stationery for a long time, the child is always dizzy.Li learned from the relevant departments, this stationery pungent Most of the fragrance is made with industrial raw materials, which contains a variety of harmful substances such as formaldehyde in addition to fragrance stationery, some commonly used poor quality school supplies on the child's physical hazards are also worrying, some manufacturers produce a large number of poorly modified products Filled with the market, such as correction fluid, correction pen and correction belt, etc. These illegal manufacturers in order to ensure the effect of modification in the product to varying degrees, adding halogenated hydrocarbons and benzene-based substances, not only bad smell, and stimulate the child's respiratory tract, Easy to cause eye, nose and throat inflammation In addition, the market for sale of poor quality crayons, watercolor paint and pencil coating heavy metal content exceeded. Some children do homework , To develop a biting pencil, run the pen does not wash their hands to eat bad habits, then, pencil harmful substances will be slowly absorbed by the body, leading to lead poisoning to avoid the harm caused by poor children stationery.

Stationery Sets For Kids

Parents should choose the regular factory production of stationery, education children to develop good health habits, put an end to bad learning methods.In addition, the purchase of school supplies, the timely request for invoices or shopping vouchers, and detailed fill in order to appear as a basis At the same time, parents also urged the businessmen should resolutely resist the stationery that is not conducive to the growth of children, and the relevant departments should also increase efforts to clean up the fight against poor students supplies for students to create a healthy cultural atmosphere. The child.

Heavy metal poisoning hazards
Heavy metals include metals with a specific gravity greater than 4 or 5, such as copper, lead, zinc, iron, cobalt, nickel, manganese, cadmium, mercury, tungsten, molybdenum, gold and silver, etc. Although manganese, copper, zinc Heavy metals are the trace elements needed for life activities, but most heavy metals such as mercury, lead, and cadmium are not necessary for life activities,And all the heavy metals are more than a certain concentration of toxic substances such as mercury poisoning clinical manifestations, systemic symptoms of headache, dizziness, fatigue and fever. Oral and gastrointestinal symptoms of gingival swelling and pain, erosion, bleeding, loose teeth Pus, mouth odor, and nausea, vomiting, loss of appetite, abdominal pain and diarrhea. Skin contact can occur red rash, to the limbs and head and face distribution more. A small number of patients may have kidney damage, individual severe cough , Chest pain, difficulty breathing, cyanosis and other acute interstitial pneumonia.

The History of Ballpoint Pens

Recent years ballpoint pens are well-known as a writing tool in the world. As it have prominent advantages: simple structure, easy to carry, writing well, and suitable for replication, etc. And it is hot welcomed by people from schools to offices in all walks of life who are willing to civilian use. Ballpoint pen is different from fountain pen, which it uses a dry thick ink, and the ink head is also relying with a freely rotatable ball. Then therefore it does not leak on the paper, also not affect from climate influence. And it also eliminates the need regular ink perfusion. It is commonly called in foreign BAK (bic).

Some people think that the ballpoint pen is an American invention, after World War II because it was introduced to China from the United States, then, the United States succeeded in producing a nuclear bomb. So, people put "ballpoint pens" in the name of Canada. Ballpoint pen is produced in 1944.As its good practical applicability, from schools to offices in all walks of life are willing to civilian use. Writing pen principle, mainly using beads when writing paper in direct contact with the frictional force, the ball rolling in the ball seat with the ink or the ink cartridge in order to achieve the purpose of writing.

Ball was produced in 1943 an editor Slobodan Biro found that printing ink dries quickly and does not stain the manuscript, so he decided to make the same ink pen. But this viscous ink can not flow out from the general tip. As with help of his brothers a chemist George, they devised a way to use capillary action of the ink to the ball pen. In 1954, a well-know Company introduced advanced Jotter ballpoint pen, this pen large capacity and can replenish the ink when the ink runs out.

Bella is author of this article, and if you are interested in stationery manufacturer, you can learn more. What's more, you also can know more about personalized pens and pencils, which is helpful for you.