Paper machine making

YIDAFA paper machines include toilet paper machines, kraft paper machines and cultural paper machines.Paper machine is a general term for a complete set of equipment that makes pulp form into a paper web, including headboxes, wires, presses, dryers, calenders, winders, transmissions and other hosts and steam and water. , vacuum, lubrication, heat recovery and other auxiliary systems.

The main features of the paper machine: it is a machine that makes the pulp water suspension that meets the requirements of papermaking into paper through the process of dehydration through filter screen, mechanical extrusion dehydration and drying. The paper machine includes three main parts of forming, pressing and drying to complete the above process, and is equipped with necessary finishing, coiling and transmission devices, as well as pulp supply, pulp and white water circulation, vacuum, ventilation and exhaust, damage Paper handling and lubrication, automatic control and other auxiliary systems. The specifications of the paper machine are often expressed by the paper width (referred to as the paper width), the width of the copper wire and the preferred working speed. The width of modern large-scale paper machines can reach 11m, the working speed can reach more than 1000m/min, the daily paper output can reach hundreds of tons, the weight of the whole machine can reach more than 1000 tons, and the length can reach more than 100 meters. In the production of general developing countries and some special papers, small paper machines are widely used, with a width of 1 to 3 meters and a working speed of tens of meters to 200 meters per minute.

1. Toilet Tissue Paper Machine.

   The paper placed in the bathroom is called toilet paper, which is mainly used for daily hygiene in people’s lives. Toilet tissue paper machine is used for making this kind of paper in bathroom.Therefore, the term used in the paper industry is usually called household paper, and it is one of the indispensable types of paper in people’s lives. Its shape has a single square, which is called square tissue or facial tissue, and it is also rolled into a roller shape, which is called roll paper. They are usually made of cotton pulp, wood pulp, straw pulp, cane pulp, mixed pulp, and waste paper pulp. Good quality toilet paper is made of virgin wood pulp. It is similar to the manufacturing process of ordinary paper, but it is required to be made into extremely thin Extremely fragile, the purpose of this is that it will rot when it encounters water, so as to achieve the purpose of environmental protection.

   
   

   
   

   
   

   A type of thin paper used for hygiene purposes, including toilet paper, paper towels, napkins, facial tissue and kitchen towels etc. Quantitative generally below 30g/㎡. It has good softness, absorbency and cleanliness. Cotton pulp, wood pulp or straw pulp soaked in alkali or various disinfectants are usually heated at high temperature and then subjected to various fine processing. The surface of the product is wrinkled and mostly white. Some high-grade toilet paper surfaces also need to be embossed. In order to increase the softness, it is often necessary to add some softener or chain breaker to the pulp, and the product is sold in small rolls, small boxes or other forms.
   

   
   

   

2. Cultural Paper machine.

   Cultural paper refers to the writing and printing paper used to spread cultural knowledge, which is called to distinguish it from other daily papers. Mainly include: coated paper, writing paper, offset paper, light coated paper and newsprint, etc.Usually office a4 paper is the most popular.Cultural paper machine could make this kind of paper from wood pulp,bamboo pup etc.As you see, writing and printing paper are clean and white with good quality.So it is always made from virgin wood pulp.

   
   

   

3. Kraft Paper Machine.

   Kraft paper , used as packaging material. The intensity is high. Usually yellowish brown. Semi-bleached or fully bleached kraft pulp is light brown, cream or white. Quantitative 80 ~ 120g/m2. The fracture length is generally above 6000m. Tear strength, work of rupture and dynamic strength are high. Mostly roll paper, but also flat paper. Using kraft softwood pulp as raw material, after beating, it is made on fourdrinier paper machine. It can be used as cement bag paper, envelope paper, glue-sealing paper, asphalt paper, cable protection paper, insulating paper, etc.Kraft paper machine could make this kind of paper from waste carton cardboard or virgin pulp.

   Kraft paper is a tough and water-resistant packaging paper with a brownish-yellow color and a wide range of uses. It is often used to make paper bags, envelopes, workbooks, record sleeves, files, and sandpaper. Quantitative range is 80 g/m2 to 120 g/m2, there are differences between roll paper and flat paper, single-sided light, double-sided light and stripes. The main quality requirements are flexible and strong, high burst resistance, and can withstand large tension and pressure without breaking. Kraft paper has high tensile strength, and there are single light, double light, stripes, no lines, etc. It is mainly used for wrapping paper, envelopes, paper bags, etc., and printing machine cylinder lining, etc.

   Kraft paper usually maintains its yellow-brown color and is suitable for bags and wrapping paper. According to different properties and uses, kraft paper has various uses. Kraft paper is a general term for a kind of paper, and there is no certain specification. It is generally classified according to its nature and use.

   According to the different colors, it can be divided into: primary color kraft paper, red kraft paper, white kraft paper, flat kraft paper, single light kraft paper, two-color kraft paper, etc.

   According to different uses, it can be divided into: packaging kraft paper, waterproof kraft paper, moisture-proof kraft paper, anti-rust kraft paper, pattern-making kraft paper, process kraft paper, insulating kraft cardboard, kraft stickers, etc.

   According to different materials, it can be divided into: recycled kraft paper, kraft core paper, kraft base paper, rough kraft paper, kraft wax paper, wood pulp kraft paper, composite kraft paper, etc.

   
   

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