Highly effective and concentrated scouring agent

Tripon AC-28

Performance Evaluation

1. Scouring test

Test conditions

• Substrate: Cotton gray knit, polyester gray taffeta
• Treatment:

Scouring agent	:	See below
NaOH (flakes)	:	2g/L
Liquor ratio	:	1:20
Temperature & Time	:	95°C x 60min

→Warm rinsing (60°C) →Cold rinsing →Drying (80°C x 15min)

Evaluation items and methods

• Scouring properties (rewetting)

The lower end of a 2cm x 15cm piece of scoured cloth was placed in blue-black ink and after two minutes the height to which the ink had climbed was examined.
The higher the value, the better the rewetting properties and thus the more effective the scouring.

• Drip method

One drop of water was applied to scoured cloth and the time taken for it to penetrate was examined. The lower the value, the higher the water absorbency.

Results

		Scouring properties (mm)				Dripping properties (sec)
Substrate		Cotton gray knit		Polyester gray taffeta		Cotton gray knit
Scouring agent	Concentration	0.5g/L	1.0g/L	0.5g/L	1.0g/L	0.5g/L	1.0g/L
None		0		0		>180
Tripon AC-28		72	80	30	34	Immediate	Immediate
Conventional product A		80	87	30	32	Immediate	Immediate
Competitor’s product R		63	72	28	32	2.4	1.2
Competitor’s product T		73	82	28	31	1.8	Immediate

(Click to enlarge)

2. Test on wax emulsification and removal and prevention of redeposition

Test conditions

• Substrate: Cotton gray knit
• Treatment:

Scouring agen	:	See below
NaOH (flakes)	:	2g/L
Liquor ratio	:	1:20
Temperature & Time	:	95°C×60分

→Warm rinsing (60°C) →Cold rinsing →Drying (80°C x 15min)

Evaluation

• Wax emulsification and removal

After rinsing, the substrate was colored according to the following conditions and then examined for wax residue. The less wax residue, the higher the effect of emulsification and removal. Coloring conditions: Sudan IV oil soluble suspension (lipophilic colorant) Liquor ratio 1:75

• Prevention of redeposition

After residual solution was filtered through No.5A black filter paper, the residue on the filter paper was examined to determine wax emulsification properties. The smaller the amount of residue, the higher the effect of wax emulsification and thus the agent’s ability to prevent redeposition.

Results

Evaluation item		Removal		Prevention of redeposition
Scouring agent	Concentration	0.5g/L	1.0g/L	0.5g/L	1.0g/L
None		×		×
Tripon AC-28		○~△	○	○	○
Conventional product A		○~△	○	○	○
Competitor’s product R		○~△	○-	○	○
Competitor’s product T		△~○	○-	○~△	○

Removal: ○Residue not discernible~　×Residue clearly discernible
Prevention of redeposition: Residue not discernible~　×Residue clearly discernible

3. Penetration test

Test conditions

Pieces of cotton gray knit and polyester gray taffeta measuring 1cm x 1cm were carefully placed on the prepared solution and the time required for them to become completely wet was examined. The shorter the time, the better the penetration.

Preparation of test solution

1. Used alone

Scouring agent

See below

2. Used in combination

Scouring agent	See below
NaOH (flakes)	2g/L

Results

		Cotton gray knit				Polyester gray taffeta
Concentration		Used alone		Used in combination		Used alone		Used in combination
		0.5g/L	1.0g/L	0.5g/L	1.0g/L	0.5g/L	1.0g/L	0.5g/L	1.0g/L
No scouring		>180		>180		>180		>180
Tripon AC-28		12.1	9.1	11.5	9.9	40	15	12	8
Conventional product A		17.8	12.1	16.9	12.4	42	18	29	22
Competitor’s product R		12.5	10.9	14.8	13.2	35	18	17	11
Competitor’s product T		146.7	85.3	>180	>180	140	50	58	30

(Click to enlarge)

4. Foaming property test

Test method

<Nitrogen gas method>

• Foaming

A 400mL test solution was prepared in a 1L beaker, into which 500mL/min of nitrogen gas was infused through a No.2 glass filter from the bottom of the beaker while the temperature was maintained as predetermined. The height of foam was examined after 5 minutes.

• Defoaming

Infusion of nitrogen gas was discontinued after 5 minutes. The solution was then left for 2 minutes before the height of the foam was examined.

Test conditions

Scouring agent	1g/L
NaOH (flakes)	1g/L
Temperature	Room temperature/95°C

Results

Test method		Foaming		Defoaming
Agent	Concentration	RT	95°C	RT	95°C
Tripon AC-28		120	40	5	5
Conventional product A		20	280	5	5
Competitor’s product R		>300	50	260	20
Competitor’s product T		60	40	40	10

(Click to enlarge)

5. Chemical stability test

The stability of NaOH (flakes) was examined according to the following method.

Test conditions

Scouring agent	See below
NaOH (flakes)	See below

Evaluation

After leaving it for 24 hours at 20°C, the state of the above treatment liquor was visually examined.

Results

	Amount of NaOH (flakes) used(g/L)
	20	30	40	50
Tripon AC-28	○	○	○	△
Conventional product A	○	○	○	○
Competitor’s product R	○	○	○	△

6. Test on stability against alkali stock solution

Stability when mixed with alkali stock solution was examined according to the following method.

Test method and evaluation

50g scouring agent and 50g NaOH (25%) were mixed, and the state of the mixture was visually examined.

Results

	Gel formation
Tripon AC-28	○
Conventional product A	×
Competitor’s product R	○

Tripon AC-28	Conventional product A	Competitor’s product R

7. Tripon AC-28 performance overview

Tripon AC-28’s performance in scouring, penetration (with alkali added), foaming, defoaming properties and alkaline stability was compared in the following diagram, with Ipposha’s conventional product A and a competitor’s product.