1. preface

This coating line is "tecnimask 1000" series, which is designed for high temperature textured coating

The design and construction of the production line is based on Guzzetti's recent years of experience in this field, using the most qualified components

The equipment composition allows the use of standard equipment framework, or modification, insertion of other equipment components, increase of equipment function or expansion of production capacity

Production line components: AC motor + frequency converter

2.Treated materials

· base material

Contains impregnated textured paper 50 to 150 GSM

Kraft paper (after treatment) 72 to 150 GSM

        Primer on the inside and release on the outside

       · Coated glue            

                     Dry glue 20-50g，

         25-55%Solid content

         Wet = 36,9 ÷ 200 GSM

Volatile solvent: 100% toluene, 16.4-150g, 160000cps (summer)

Glue viscosity             

160.000 Cps summer

220.000 Cps winter

The coating unit temperature is about 40 - 45 ° C

            Viscometer

      Viscosity measurement system

      4 power, 2.5rpm

               Solvent residue max. 1% to 1.2%, solid content 55%

                for example

         -1 m2 sample=

          -After drying in the oven

(150-148): 150 = 0,013 = 1,3%: too much

(150-148,5): 150 = 0,01 = 1%: OK

Corresponding to 1,5 gr/sqm approx

3. Technical parameters 

3.1)

· Mechanical speed                        max 200 mpm

· Production speed

a) General textured paper

Production speed                        150 mpm

Default to         *Paper weight: 59 ÷ 60 gsm

               * Coating width= 1630 mm

                                     * Coating glue

               36 g dry weight, 55%, 65.5 g wet weight

               - Volatile solvent

               Toluene 100%; 29,5 gsm

       The coating data is considered as the data after curing

        If higher quality coating is required, the coating speed must be reduced

Toluene 100% 140.6 G

    * Glue curing temperature 180 ° C

· Textured paper width                                     min 1250 - max 1650 mm

· Coating width                                              min 1230 – max 1630 mm

· Roll circumference                                        min 1700 mm

·Maximum unwinding diameter                   1200 mm

· Maximum winding diameter                              1000 mm

· Inner diameter of unwinding reel                  76.2 mm (3”) – 152.4 (6”)

· Inner diameter of winding shaft                    76.2 mm (3”) – 152.4 (6”)

·Maximum unwinding weight        1500 Kg

· Maximum winding weight          1000 Kg

· Paper tension

-Unwinding                                         min 5 max 50 Kg

-Winding                                            min 7 max 70 Kg on core,with a reduction of 50 Kg on max ? 

· 技術(shù)文件，標(biāo)簽

3.2) Electrical system

                      a) Main features

· Line tension  400V ± 10 %, 3 ph

· Current frequency 50 Hz ± 2 %

· Textured paper driving power Kw 150 approx.

Oven assembly fan Kw295 approx.

Total installed power Kw 445 approx.

- absorptivity 60 - 70%

e) The textured paper drive and reel are controlled and synchronized by frequency converter and AC motor

3.3)Heat the oven with steam (ovens 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 and 19)

     Technical parameters supplied to our oven steam access point:

     -Heat consumption 1.487.000 kcal / h approx

     -Steam 7 bar 165 ° C 2252 kg / h (consumption)

     -The fresh air temperature is assumed to be + 25 ° C

3.4) Heating the oven with natural gas (ovens 13, 14, 15, 16, 17 and 18)

       At the natural gas access point, the natural gas must meet the following characteristics:

· pressure                                         200 mBar

· Heat consumption of oven at 140 degrees            588.330 Kcal/h approx.

· Air supply speed                                                     80 m3/h approx.

· Oven heat consumption at 190 degrees                742.000 Kcal/h approx.

· Air supply speed                                                     101 m3/h approx.

- The fresh air temperature is assumed to be + 25 ° C

3.5) Extraction system of solvent recovery system

a) General textured coating

· Gas capacity                                             110.000 Scm*/h (approx.)

· Negative pressure of oven flange             110 mm H₂O

· Verage temperature                                60-75°C

· Solvent quantity                       1100 Kg/h

*Scm It refers to the standard cubic meter of air at 20 ° C and sea level pressure（10.000 mm H₂O)

3.6) Major groups will brand

· ACmotor                                        Siemens Omron CEMP

· Motor fan                                   Siemens CEMP

· Big drive                                     Siemens ab

· PLC                                              Siemens ab

· Electrical components                Siemens

· Operation panel                          Siemens

· Electric control cabinet                  RITTAL

·Gas concentration detection system                       MSA

· P pneumatic assembly                                            FESTO-SMC

· Hydraulic components                                            BOSCH - REXROTH - ATOS

· Opposite equipment                                                    FIFE - ERHARDT+LEIMER

·Electrostatic removal equipment                             KASUGA

    Guzzetti reserves the right to use other brands if necessary and to ensure the good function of the equipment, but must obtain the consent of the customer

4.Supply composition