To understand how paper is made, you must first determine its type, because the composition of the raw materials can be different. The main material in the paper industry is wood. Whole shafts are delivered to the mills. There they remove the bark, cut it. Then the raw materials are ground into flour - to fibril fibers. The technology consists of the following stages:
mass treatment - grinding, dyeing, mixing plant and chemical components;
dilution of the mass with water, purification, pressing and drying;
calendaring;
cutting, sorting and packaging. The paper manufacturing process begins with the grinding of raw materials in continuously operating machines. The factories use rolls, conical and disk type mills, refiners. The paper manufacturing process begins with the grinding of raw materials in continuously operating machines
Поделитесь своими знаниями, ответьте на вопрос:
Задайте пять вопросов разного типа к тексту. the kitchen itself is almost a separate kingdom within the hotel. the head cook, almost always designated by the french word chef, is the boss of this hot, steamy, and at times chaotic area. the chef is responsible for planning the menus - that is, the food that is being served on a particular day - and for supervising the work of the other chefs and cooks. sometimes the head cook is called the executive chef, and his responsibilities are largely those of a manager. he plans, purchases, and frequently coordinates the operation of several restaurants. depending on the size of the establishment, several assistant chefs report to the chef. these include a sauce chef, a salad chef, a vegetable chef, and so on. under the chefs are cooks who actually cook the food and then place it on the plate for the waiters to pick up. under the cooks' supervision are the kitchen helpers who, for example, peel potatoes, cut up vegetables, and bring food from the storeroom to the kitchen. the kitchen staff also includes dishwashers, even in a kitchen equipped with electrical appliances, since pots and pans usually need special attention, and someone must load and unload the machines.