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If you want a long service life of the blanket, you just need to know these points

If you want a long service life of the blanket, you just need to know these points

(Summary description)The blanket has the function of keeping warm and is thinner than the quilt. There is a thick layer of wool fabric on the surface of the blanket, which is a kind of bedding with warmth. We usually use blankets in autumn and winter, so in order to extend the service life of blankets, how should we maintain our blankets at home.

If you want a long service life of the blanket, you just need to know these points

(Summary description)The blanket has the function of keeping warm and is thinner than the quilt. There is a thick layer of wool fabric on the surface of the blanket, which is a kind of bedding with warmth. We usually use blankets in autumn and winter, so in order to extend the service life of blankets, how should we maintain our blankets at home.

Information

The blanket has the function of keeping warm and is thinner than the quilt. There is a thick layer of wool fabric on the surface of the blanket, which is a kind of bedding with warmth. We usually use blankets in autumn and winter, so in order to extend the service life of blankets, how should we maintain our blankets at home.

1. The selection principle is generally:

1.1 Arranged in the order of dehydration, from front to back, the weight of the blanket should be gradually increased.

1.2 Pay attention to the matching of each blanket. If the blanket quantification gap is too small, the paper will run with the blanket and it will be difficult to uncover the paper; if the quantification gap is too large, the service life of the latter blanket will be shortened, and embossed paper defects will easily occur.

1.3 The same paper machine produces paper of different basis weights, and the selection of its blankets is also different. Generally, when the paper pulp is difficult to be dehydrated, the basis weight of the felt is relatively small and there is no weft, but the basis weight difference is large when the felts are matched with more than two beds. If the pulp is dewatered consistently, the production of low basis weight paper is intended to choose felt with more wefts. For example, the No. 1 paper machine of our factory chooses 17190 when producing 60g/m single-adhesive paper. Weft-free blankets, and 17290 wefted blankets when the raw weight is 30g/m single-sided writing paper.

2. Pay attention to the operation of changing the blanket. At present, most manufacturers use all-chemical fiber blankets with good drainage. If you do not pay attention to cleaning when changing the blankets, it will cause various oil stains on the blankets. The use of blankets brings potential hazards, so special attention should be paid to clean production during replacement. Secondly, there must be a suitable tension, the tension should be limited to maintain the stable operation of the blanket, and should not be too high. In addition, avoid the need to put on the last blanket guide roller during replacement and use partial wetness with water to stretch the blanket. This will cause the difference in the initial setting of the blanket during operation, and the phenomenon of looseness and tightness during operation And scrap the blanket. Of course, in the correct replacement, we must pay attention to a series of issues such as the running direction.

3. Preparation before sizing operation After the blanket is replaced and the paper machine is running, the following work must be done before sizing:

3.1 High-temperature setting Generally, the blankets are heat-set in the industrial fabric factory, but for the blankets running near the dryer, the setting temperature in the industrial fabric factory is lower than the operating temperature, so it needs to be re-heat-set. For example, the upper blanket of the general short fourdrinier paper machine and cylinder paper machine, the setting temperature is 120℃ (vapor pressure 0.25~0.3MPa, gauge pressure), and the setting time is 40~120min. Otherwise, problems such as increased steam consumption, poor drying, discounts, etc. will occur, which will seriously affect the service life.

3.2 Sufficient idle running washing time As the woven fiber of the blanket contains grease to varying degrees during the weaving process, the blanket should be thoroughly moistened and washed. Generally, the washing time of the blanket is 30-60 minutes.

3.3 Adjusting the tension of blankets Although most blanket manufacturers have indicated on the instruction card: Due to the limitation of the weaving level, the blanket marking line cannot be used to adjust the tension. But under normal circumstances, the marking line is exactly the same as the state when weaving, at this time the drainage gap of the blanket should be the largest. Therefore, it is necessary to adjust the blanket based on the marking line through the tensioning device. Once the blanket is adjusted, its shape should not be changed during use. Otherwise it will seriously affect the service life.

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