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B E Z E M A A G | Kriessernstrasse 20 | CH-9462 Montlingen | Tel +41 71 763 88 11Fax +41 71 763 88 88 | www.bezema.com | bezema@bezema.com
C H T R . B E I T L I C H G M B H | Bismarckstraße 102 | D-72072 Tübingen | Tel +49 7071 154-0Fax +49 7071 154-290 | www.cht.com | info@cht.com
dachcom
UnIqUE IdEAs. UnIqUE soLUTIons.
12/1
4_en
BEZAKTIV HPTop-class dye range
WORLD-CLASS TOP VALUES PERFECT TERNARY PROPERTIES
Extreme routes can only be successfully mastered with the best equipment. Abso-lute material reliability is only a basic re-quirement. Maximum commitment and boundless passion combined with the highest material demands regarding func-tionality and versatility mean that even the most ambitious aims can be reached.
> Reach youR cellulose dye-ing aims wiTh BeZaKTiV hP!
The BEZAKTIV HP range means the highest performance on a world-class level. It fea-tures dyes with a wide variation in brilliance to enable selection of the ideal dye for all ap-plications. All dyes are perfectly combinable and therefore ensure optimum production reliability in both exhaust and continuous dyeing processes. With the combination of elements it is possible to eliminate any
potentially occurring metamerism with exist-ing recipes, and there are therefore no ob-stacles for switching to high performance.
The dye range has the following outstand-ing features:• Perfect combinability due to even bath
exhaustion and fixation • High shade consistency in the event of
fluctuating production parameters• Excellent suitability for all processes• Tailing-free dyeing in the continuous
process
• Balanced dye migration ensures the best levelling and minimum double-sidedness, especially on emerised fabric
• No photochromism• High light fastness and perspiration light
fastness, especially in the shade-sensitive grey, brown and olive ranges
• Wide colour space coverage• High washing fastness
BRILLIANT COLOURS FOR UNIVERSAL APPLICATIONS
HIgH, COORDINATED LIgHT AND PERSPIRATION LIgHT FASTNESS
When exclusively using non-contrasting, generally dull dyes, limits are already reached with the illustrated shades, and the exact shade setting is sometimes no longer possible. With the BEZAKTIV HP dye range these shades can easily be achieved and can be dyed reliably with effective reproduc-tion. The wide colour range coverage means that even more brilliant colour shades are not a challenge. With the new supplemen-tary elements BEZAKTIV Brown HP-5R, BEZAKTIV grey HP-N and BEZAKTIV Olive HP-B, reproducibility and process reliability when dyeing particularly tricky shades can be increased even further.
blu
e –
yello
w
green – red
Colour space coverage
khaki grey olive
BeZaKTiV hP
Traditional 1
Traditional 2
Traditional 3
high performance ranges khaki grey olive
Alkaline perspiration light fastness
> lighT and PeRsPiRaTion lighT fasTness
The BEZAKTIV HP dye range is particularly able to demonstrate its strengths regarding light and perspiration light fastness with dull
––– BeZaKTiV hP ––– Traditional 3 ◆ khaki ◆ grey ◆ olive
and often dyed shades. The fastness level of the individual elements is coordinated so that the shade does not change.
> shade-in-shade colouR Build uP
The excellent reproducibility and transfera-bility from laboratory to production result from coordinated substantivity and reactivity of all elements of the BEZAKTIV HP dye
NO PHOTOCHROMISM:ADDITIONAL CUSTOMER BENEFITS
dyeing process with dosing of salt and alkali
Time in minutes
10 % salt 30 % salt 60 % salt 100 % na2co3 50 % naoh 50 % naoh
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
0 15 30 45 60 75 90 105 120
0 10 20 30 40 50
80
60
40
20
0
1.2
1
0.8
0.6
0.4
0.2
0
Tem
per
atur
e in
°c
BEZA
KTIV
HP
rinse
d an
d so
aped
not r
inse
d an
d no
t soa
ped
Corresponding shade
range. This can be illus trated with a shade-in-shade colour build up during dosing of salt and alkali.
TERNARY: ROBUST AND RELIABLE
Photochromism
number of flashes
de
n BeZaKTiV yellow hP-nP n Reactive yellow/Traditional 1 n Reactive amber/Traditional 2 n Reactive yellow/Traditional 3 n c.i. Reactive orange 107
> no PhoTochRomism
Although photochromism is a reversible change in colour due to exposure to light, it is an unwanted factor and is normally not accepted. A number of golden-yellow dyes often have, however, a pronounced tendency to photochromism. For this reason golden-yellow elements are contained in
many ternaries which match red and blue due to their dyeing behaviour, but are pho-tochromic. BEZAKTIV Yellow HP-NP is photochromism-free. The diagram shows the change in shade during exposure of the dyed product to a number of light flashes.
COLOUR CONSISTENCY DURINg ALL PROCESSES
> colouR consisTencyVariations in the process parameters are the main cause for problems with reproducibility. Conventional dyes in a ternary respond individually to these process parameters.The BEZAKTIV HP dyes possess highest robustness towards these variations of parameters. Thus differences in hue and strength can be avoided. The following graphics illustrate the robustness of BEZAKTIV HP.
Total difference of shade (delta E)
1:8 l.r.
1:12 l.r.
– 10 % salt– 10 % alkali
+ 10 % alkali
– 15 min.
+ 15 min.
– 5 °c
+ 5 °c
+ 10 % salt
10 % overfill
20 % overfill
10 % underfill
20 % underfill
n BeZaKTiV hP n Traditional 1 n Traditional 3
> exhausTIn exhaust dyeing various process parame-ters can affect strength and/or shade of a dyeing, particularly filling level, liquor ratio, amount of salt and alkali as well as dyeing time and temperature.
> Pad dRy Pad sTeamAlso in the pad dry pad steam process a colour consistency is guaranteed which meets the highest requirements, even in the event of fluctuation of the steaming time, salt and lye concentration.
COLOUR CONSISTENCY DURINg ALL PROCESSES
> cold Pad BaTchDue to the optimally coordinated substan-tivity and reactivity, no shifts in shade occur due to tailing with the BEZAKTIV HP dye range. There is also no difference in shade between both sides of emerised fabric.
Tailing
colour at the beginning
shade variation
colour after consumption of 70 % of the padding liquor
dh: 0.31
dh: 0.33
Emerised fabric
smooth fabric side Rough fabric side
Total difference of shade (delta E)
+ 50 g/l salt
– 50 g/l salt– 1.5 ml/l naoh
+ 1.5 ml/l naoh + 15 s steaming
– 15 s steaming
n BeZaKTiV hP n Traditional 1 n Traditional 3
DYEINg METHODS
BEZAKTIV HP dyes are universal-application reactive dyes and can be used in exhaust, semi-continuous and continuous dye pro- cesses. BEZAKTIV HP dyes can be com-bined with BEZAKTIV V and BEZAKTIV S dyes.
> exhausT PRocess foR BeZaKTiV hP
The optimal dyeing temperature is 60 °C. BEZAKTIV HP dyes can be used both on exhaust machines (jet, overflow) and also on exhaust apparatus (cross-package or warp beam dyeing apparatus, beam dyeing appara-tus). The recommended auxiliaries and the correct application amounts are listed in the process descriptions. The application amounts of salt and alkali depend on the fabric, the amount of dyes and the liquor ratio.
A1.0 – 2.0 g/l saRaBid ldR / miP
1.0 – 2.0 g/l BiaVin BPa
10.0 – 90.0 g/l common salt or glauber’s salt
B x % BeZaKTiV dye
C5.0 – 10.0 g/l sodium carbonate
0 – 3.5 ml/l caustic soda solution 38 °Bé (add progressively within 45 min)
D 0.5 ml/l acetic acid 80 %, ph 7 – 8 during soaping
E 1.0 g/l coToBlanc sel
Temperature step process Process which is mainly used for dyeing on machines without a suitable dosing device. To prevent unlevelness the alkali should be added in portions. Furthermore this process can be used to improve the tone-in-tone dyeing of cotton/viscose blends.
A
1.0 – 2.0 g/l saRaBid ldR / miP
1.0 – 2.0 g/l BiaVin BPa
10.0 – 90.0 g/l common salt or glauber’s salt
5.0 – 10.0 g/l sodium carbonate
x ml/l caustic soda solution 38 °Bé (add 20 % of the total quantity)
B y % BeZaKTiV dye
C z ml/l caustic soda solution 38 °Bé (add 80 % of the total quantity)
D 0.5 ml/l acetic acid 80 %, ph 7 – 8 during soaping
E 1.0 g/l coToBlanc sel
A B
0
0
10
20
30
40
50
60
70
80
90
100
20 40 60 80 100 120 140 160 180 200 220
Time in minutes
Tem
per
atur
e in
°c
C 45 – 60 minutes
E
D
Isothermal processUniversal procedure to obtain excellent reproducibility and levelness. If the dosage is monitored, sodium carbonate and caustic soda can be added simultaneously. With progressive alkali dosing a steady increasing fixing curve and therefore the best possible levelness is reached. In addition, premature hydrolysis of the dye is prevented. This means the highest possible colour yield.
0
0
10
20
30
40
50
60
70
80
90
100
20 40 60 80 100 120 140 160 180 200 220
Time in minutes
Tem
per
atur
e in
°c
A B C 45 – 60 minutes
E
D
A1.0 – 2.0 g/l saRaBid ldR
1.0 – 2.0 g/l BiaVin BPa
10.0 – 90.0 g/l common salt or glauber’s salt
B x % BeZaKTiV dye
C5.0 – 10.0 g/l sodium carbonate
0 – 3.5 ml/l caustic soda solution 38 °Bé (add progressively within 45 min) or 0 – 7.0 ml/l egasol as new
D 0.5 ml/l acetic acid 80 %, ph 7 – 8 during soaping
E 1.0 g/l coToBlanc sel
salt- and alkali requirement for BEZAKTIV HP dyes
For unmercerised cotton in liquor ratio 1:8 – 1:12
alkali mixture only soda ash
% dyestuff salt g/l soda ash g/lcaustic soda
solution 38 °Bé ml/lsoda ash g/l
< 0.1 % 10 5 – 5
0.1 – 0.5 % 20 10 – 10
0.5 – 1.0 % 30 5 1.0 15
1.0 – 2.0 % 40 5 1.5 15
2.0 – 4.0 % 60 5 2.0 20
4.0 – 6.0 % 80 5 3.0 25
> 6.0 % 90 5 3.5 25
For mercerised cotton and viscose in liquor ratio 1:8 – 1:12
alkali mixture only soda ash
% dyestuff salt g/l soda ash g/lcaustic soda
solution 38 °Bé ml/lsoda ash g/l
< 0.1 % 10 5 – 5
0.1 – 0.5 % 15 7.5 – 7.5
0.5 – 1.0 % 20 5 0.8 10
1.0 – 2.0 % 30 5 1.1 15
2.0 – 4.0 % 40 5 1.5 15
4.0 – 6.0 % 60 5 2.0 20
> 6.0 % 70 5 2.0 25
liquor ratio Factor
Conversion factors to determine the alkali requirements depending on the liquor ratio
1:51:101:151:20
1.301.000.800.65
liquor ratio Factor
Conversion factors to determine the salt requirements depending on the liquor ratio
1:51:101:151:20
– 10 g/l salt– standard
+ 10 g/l salt+ 20 g/l salt
Migration step process 80/60 °CProcess for articles with which level dyeing is very difficult and for critical shades such as grey, khaki or beige. Excellent dye penetration and levelness, especially on dense yarn packages or cross-bobbins. With difficult light or medium colours, salt dosing is also possible after the dye has been added. glauber’s salt is preferable to common salt for this process.
B
C
0
0
10
20
30
40
50
60
70
80
90
100
20 40 60 80 100 120 140 160 180 200 220 240 260 280
Time in minutes
Tem
per
atur
e in
°c
A
E
D
45 – 60 minutes
g/l BeZaKTiV dye
ml/
l cau
stic
so
da
solu
tio
n 32
.5 %
(38
°B
é)
40
35
30
25
20
15
10
0 20 30 40 50 60 70 80 90 100
Alkali concentration for the reduced sodium silicate process:
Technical application notes for dyeing according to the CPB process
dye designationfibre
affinityliquor
stabilityfixation speed
minimum fixing time
BeZaKTiV yellow hP-nP medium medium medium 12 hours
BeZaKTiV Red hP-Bl medium medium medium 8 hours
BeZaKTiV Red hP-3B medium medium medium 8 hours
BeZaKTiV Blue hP-R medium medium medium 8 hours
BeZaKTiV olive hP-B medium medium medium 12 hours
BeZaKTiV Brown hP-5R medium high medium 16 hours
BeZaKTiV grey hP-n medium medium medium 12 hours
Table information: The given dye specifications were deter-mined with use of the reduced sodium silicate method (50 ml/l) and caustic soda solution 38 °Bé with a dye application amount of 30 g/l at a padding temperature of 25 °C and a dwelling temperature of 25 °C.
> semi-conTinuous PRocess
Woven and knitted fabric made of cellulose or regenerated cellulose can be dyed very economically with the cold pad batch (CPB) process with BEZAKTIV HP dyes. When BEZAKTIV HP dyes are combined with BEZAKTIV V or S it should be ensured that dyes with the same dyeing properties such as fibre affinity, liquor stability and fixing speed should be used. This information is given in the respective tables. To prevent tailing during padding, a high liquor exchange should be ensured. With lightweight fabrics dyeing should be performed with a low trough level and a high running speed. A low liquor stability can result in tailing. To ensure a high liquor stability it is highly recommended that the temperature of the padding liquor is not higher than 25 °C. Dye and alkali solution with a 4:1 ratio are combined just before the padder with a mixing pump or doser and added to the dye trough. The application amounts of dye, auxiliaries and fixing alkalis are based on the overall volume of the padding liquor. It is important that the fabrics have been cooled properly before padding to ensure reproducibility. If the fabric tempera-ture is too high, the liquor stability is lowered which results in a change of colour or its depth. A constant production speed should generally be ensured. Different speeds influence the liquor pick-up and result in tailing. During dyeing the fabric is rolled with a straight line fabric. In order to ensure optimum fixation of the dye, the dyed goods must be packed with an air-tight plastic film and left for a certain time at room tempera-ture. Packing the goods with an airtight package prevents carbon dioxide from the air partially neutralizing the fixing alkali. When dyeing with several dyes the dwelling time of the dye with the longest dwelling time should be taken.
Cold pad batch process with reduced sodium silicate quantityThe reduced silicate version is the standard version and has a high pad liquor stability in the temperature range of 20 – 30 °C. The application amount of sodium silicate 38 °Bé is generally 50 ml/l. Addition of the dye with the fixing alkali is performed with a mixing pump with a ratio of 4:1. Silicate de-posits can occur on the rollers if silicate is used. Furthermore the use of sodium silicate during the soaping process requires an in-tensive washing process before neutraliza-tion to prevent silicate precipitation.
Dye solution: x g/l BEZAKTIV HP dye 0 – 100 g/l Urea 1 – 3 g/l COLORCONTIN SAN
Alkali solution: 50 ml/l Sodium silicate 38 °Bé y ml/l Caustic soda solution
32.5 % (38 °Bé)
Mixing ratio: The stated quantities g/l of dye, ml/l of sodi-um silicate and ml/l of caustic soda solution 32.5 % (38 °Bé) are based on the total vol-ume of the padding liquor. Dye and alkali solution are combined with a mixing pump with a normal mixing ratio of 4:1 and form the total padding liquor volume.
Padding liquor temperature:20 – 25 °C
Dwelling time:12 – 24 hours, up to 40 hours no colour losses or shifts in shade occur.
Fibre affinity:The fibre affinity was determined by adding alkali and characterises the specific exhaus-tion properties of a dye. To counter tailing problems, the use of dyes with the same fibre affinity is advantageous.
Padding liquor stability:The padding liquor stability is given in minutes. A period of time for hydrolysis of 10 % of the employed dye is determined. This theoretical value cannot be implemented directly in practice, as the dye and alkali solution are constantly added to the trough. For this reason the actual value of the liquor replacement in the trough should not exceed three minutes. The values of the BEZAKTIV HP dyes were determined at a temperature of 25 °C and with the use of the reduced sodium silicate variant. A higher temperature and different alkali systems influence the liquor stability.
The BEZAKTIV dyes are categorised as follows:Low < 10 minutesMedium 10 – 20 minutesHigh > 20 minutes
Fixation speed:The speed of fixation depends greatly on the dwelling temperature. A regular temperature of the dyed fabric, liquor and environment is a requirement for regular fixation. The stated values of the BEZAKTIV HP dyes are based on an ambient temperature of 25 °C during dwelling. If the ambient temperature is lower, the dye is fixed more slowly. For this reason it is necessary to adapt the dwelling time accordingly.
Slow > 16 hoursMedium 8 – 16 hoursFast < 8 hours
> conTinuous dyeing PRocess
Pad dry pad steam processThe pad dry pad steam process is the classic continuous process for dyeing woven fabrics. It is primarily used for cellulose articles with a high yardage. This process is characterised by a high productivity, a good fabric appearance as well as a good colour yield. The use of a dosing pump is not necessary with this process.
Dye pad: x g/l BEZAKTIV HP dye 1.0 – 3.0 g/l COLORCONTIN SAN 1.0 – 5.0 g/l MEROPAN XRN PEARLS 5.0 – 10.0 g/l MIgRASOL SAP
Pick up: 60 – 80 %
Padding temperature: 20 – 30 °C
Pre-drying to a residual moisture content of 30 – 35 % in the IR zone
Drying: 110 – 120 °C
Padding of chemicals: 250 g/l Common salt 20 g/l Sodium carbonate7.5 – 15 g/l Caustic soda solution 38 °Bé
Pick up: 80 – 100 %
Padding temperature: 20 – 30 °C
Fixation: Steaming with 102 °C saturated steam for 60 – 90 seconds.
Alkali requirements
dye g/l < 20 20 – 40 > 40
caustic soda solution 38 °Bé ml/l 7.5 10 15
Remarks:Regular pre-drying is necessary to ensure optimum reproducibility and a level fabric appearance.
Pad dry thermofix processThe pad dry thermofix process is a single-bath and salt-free continuous process. Particularly suitable for light to medium shades. A lower light fastness level is achieved than with the pad dry pad steam process. No dosing pump is required for this process. Fixation is performed with hot air. Sodium bicarbonate is recommended as a fixing alkali, because of higher liquor stability than sodium carbonate.
Dye pad: x g/l BEZAKTIV HP dyes 1.0 – 3.0 g/l COLORCONTIN SAN 1.0 – 5.0 g/l MEROPAN XRN PEARLS 5.0 – 10.0 g/l MIgRASOL SAP 0 – 150 g/l Urea x g/l Sodium bicarbonate
Pick up: 60 – 80 %
Padding temperature: 20 – 30 °C
Pre-drying to a residual moisture content of 30 – 35 % in the IR zone
Drying: 110 – 120 °C
Thermofixation: 60 – 180 seconds at 150 °C
Alkali requirements (sodium bicarbonate)
dye g/l 5 10 20 30 > 30
sodium bicarbonate g/l 10 15 20 25 30
Remarks:Regular pre-drying is necessary to ensure optimum reproducibility and a level fabric appearance. The dyes should be preselected due to the specific conditions during thermofixation.
LightSolubility
25 °C
in g/l
Washing
°C
Perspiration
CCCOCV
4-54-54-5
555
4-555
4-55
4-5
4-54-54-5
4-54-54-5
4-54-54-5
4-544
4-54-54-5
4-54-54-5
4-54
4-5
4-544
43-44-5
4-54
4-5
CCCOPA
555
555
4-555
4-555
555
55
4-5
555
CCCOPA
555
4-555
555
4-555
55
4-5
54-54-5
555
CCCOPA
4-555
4-555
4-555
4-555
55
4-5
54-54-5
4-55
4-5
CC
3-4
1
3-4
2-3
1-2
4
2
CC
4-5
3
4-5
3
2-3
4-5
3-4
1/11/25
–
+
–
(+)
+
+
–
+
–
+
–
+
–
+
CPB
°C
+
60
+
60
+
60
+
60
+
60
+
60
+
60
–
–
–
+
+
–
+
Chlo
rine
was
hing
Chlo
rina
ted
wat
er
Disc
harg
eabi
lity
Suita
bilit
y fo
r CP
BEx
haus
tion
tem
p.
Met
al c
ompl
ex
Water
alkal.
neutral
100
100
100
100
100
80
100
CPB
100
100
100
100
100
50
100
100
1/11/25
6-76
65-6
5-64-5
6-76
65-6
5-65
65-6
BEzaktiv Yellow HP-NP
BEzaktiv Red HP-BL
BEzaktiv Red HP-3B
BEzaktiv Blue HP-R
BEzaktiv Olive HP-B
BEzaktiv Brown HP-5R
BEzaktiv Grey HP-N
0.55 % 3.3 %
0.42 % 2.5 %
0.55 % 3.3 %
0.50 % 3.0 %
0.55 % 3.3 %
BEzAktiv HPDyes
HiGH PERFORMaNCERanges of top products and specialities offering stateof the art technology and meeting the highest demands.
GOTS 3.0 suitability
HPacid
60
20 ppm
95
data about fastness properties:The fastness properties indicated in this shade card were determined on 1/1 standard depth dyeings on bleached mercerised cotton.Fastness to light DIN EN ISO 105-B02Fastness to washing at 60 °C DIN EN ISO 105-C06/C2SFastness to washing at 95 °C DIN EN ISO 105-C06/E2S
Fastness to water DIN EN ISO 105-E01Fastness to perspiration DIN EN ISO 105-E04Fastness to washing with hypochlorite DIN EN ISO 105-C06/D3SFastness to chlorinated water (swimming pool water) DIN EN ISO 105-E03
Dischargeability + suitable for white discharge (+) suitable for coloured discharge – not dischargeable
0.33 % 2.0 %
0.60 % 3.6 %
Recommended