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2016-6-21,4 tissue rewinders for Lee & Man Paper
A.Celli Paper has recently concluded an important agreement with the Chinese group Lee & Man Paper Manufacturing Limited (“Lee & Man Paper”).The Porcari-based company will supply four tissue rewinders to the Asian customer that has grown quickly in the course of the last twenty years, changing its status and going from a small company (founded in 1994) to a structured group listed in the stock exchange, with five facilities in China and some factories in Vietnam.The order from Italy entails the supply of 4 tissue rewinders model AC882, in a paper width 5620 mm and a speed of 1000 metres per minute, two equipped with calender. Two rewinders are designated for the Jiangxi Jiujiang facility, while the other two for the Dongguan Guangdong plant. Delivery date is scheduled for the end of the year.The supply of these four machines will assure Lee & Man Paper an increment in performance and in the level of reliability. The Asian group, that has established itself as one of the most dynamic and farsighted players in the field, focuses on a continuous renewal process and one of constant growth capable of guaranteeing further business development and the pursuit of new goals. Scale economies, verticalisation and process integration together with the collaboration of excellent partners in terms of technology and innovation have allowed Lee & Man Paper to become what it is today.
While we talk about air-through thermal bonding nonwovens production, there are always some questions from the factory such as following intersting :
1) WHAT ARE THE BEST PARAMETERS OF SPEED AND DISTANCES BETWEEN CYLINDERS (FILLERS) OF: INFEED, BACK DOFFER, FRONT LITTER, BACK LITTER, OVEN'S MAIN CYLINDER SPEED, HEATING FAN SPEED, UPPER AND LOWER CABIN PRESSURE
FOR MAKING:
A. NONWOVEN LAYER WITH GRAMMAGE 45 GR/M2
B. ADL LAYER WITH GRAMMAGE 30 GR/M2 AND 40 GR/M2
C. TOPSHEET LAYER WITH GRAMMAGE 20 GR/M2 AND 15 GR/M2
2) WHAT PARAMETERS WE SHOULD USE FOR INCREASING INFILTRATION CAPACITY OF NONWOVEN LAYER?
3) WHAT SHOULD WE DO FOR REDUCING THE DIFFERENCE IN GRAMMAGE OF LEFT AND RIGHT ROLLS OF PRODUCT, UNTIL NOW THERE IS SOME DIFFERENCE BETWEEN THEM.
4) WHAT ARE THE BEST DISTANCES BETWEEN CYLINDERS (FILLERS) FOR EVERY PRODUCT MENTIONED ABOVE?
5) IS IT NECESSARY TO CHANGE THE DISTANCES BETWEEN CYLINDERS (FILLERS) OF CARDING MACHINES CYLINDERS WHEN WE WANT TO CHANGE OUR PRODUCT FOR EXAMPLE FROM NONWOVEN TO ADL OR FROM TOPSHEEP TO NONWOVEN?
6) WHY IS IT LIKE THIS THAT SOMETIMES WHEN WE REDUCE THE INFEED SPEED BUT GRAMMAGE GOES UP?
7) WHAT CAN WE DO WHEN THERE IS SOME HORIZONTAL LINE REPEATING IN THE PRODUCT?
8) WHAT DOES THE "FRONT LITTER" AND "BACK LITTER" DO IN CARDING MACHINE (IN DETAILS).
9) WHAT IS THE RATIO BETWEEN INFEED, FRONT LITTER, BACK LITTER, AND BACK DOFFER AND HOW THEY SHOULD BE SET TO GAIN THE BEST PRODUCT?
10) HOW AND WHEN BACK DOFFER OR FRONT LITTER CHANGE THE GRAMMAGE AND HOW THEY SHOULD BE SET?
11) WHEN WE WORK FOR SEVERAL HOURS (FOR EXAMPLE 10 HOURS) THE OVEN'S CYLINDER STICKS TO THE LAYER, WHAT CAN WE DO TO REMOVE OR REDUCE THIS EFFECT?
12) HOW CAN WE INCREASE THE TRANSVERSE STRETCHING OF THE LAYER?
13) HOW SHOULD BE THE FIBER FORMATION IN NONWOVEN, ADL, TOPSHEET?