Multi composition systems comprising a bleaching agent and encapsulates
A technology of composition and encapsulation, applied in the direction of detergent composition, coating detergent composition, organic/inorganic compound composition, etc., can solve the problem of reducing the effectiveness of active agents
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Embodiment 1
[0151] Example 1. Preparation of encapsulated substance slurry .
[0152] The encapsulate slurry can be prepared according to the following procedure.
[0153] An oil solution consisting of 150 g of fragrance oil, 0.6 g of DuPont Vazo-52 and 0.4 g of DuPont Vazo-67 was added to mix at 1000 rpm (4 tipped, 2" diameter flat grinding blades) and applied at 100 cc / min In a temperature-controlled steel jacketed reactor at 35° C. under a nitrogen blanket. The oil solution was heated to 75° C. within 45 minutes, held at 75° C. for 45 minutes, and cooled to 60° C. within 75 minutes.
[0154] When the first oil solution reached 60° C., a mixture of 37.5 g of aromatic oil, 0.5 g of tert-butylaminoethyl methacrylate, 0.4 g of 2-carboxyethyl acrylate and 19.5 g of Sartomer CN975 (hexafunctional aromatic oil) was added. A second oil solution consisting of urethane-acrylate oligomers). The mixed oils were held at 60°C for an additional 10 minutes.
[0155] Mixing was stopped and an aque...
Embodiment 2
[0158] Example 2. Comparison of encapsulates in the presence of PAP .
[0159] In Examples 2 and 3, the following nomenclature was used:
[0160] Encapsulation 1: Core-shell capsule containing perfume raw material in the core and having a melamine-formaldehyde based shell coated with polyvinyl formamide polymer as a deposition aid
[0161] Encapsulant 2: Core-shell capsule containing perfume raw material in the core and having a shell based on acrylate polymer
[0162] PAP: ε-phthalimide peroxyhexanoic acid
[0163] In the following tests, the performance of Encapsulates 1 and 2 was compared as determined by a professional perfumer for dry fabric odor (DFO) before and after wiping. The properties are measured in a wash cycle (North American front load machine) comprising the base detergent composition with and without PAP. For each group, both encapsulates were present in the wash liquor at a level of 20 ppm and PAP (if present) was present in the wash liquor at about 270 p...
Embodiment 3
[0168] Embodiment 3. content comparison .
[0169] In the following examples, the performance of Encapsulates 1 and 2 is compared as determined by a professional perfumer for dry fabric odor (DFO) before and after wiping. The properties are measured in a wash cycle (North American front load machine) comprising the base detergent composition with and without PAP. For each group, Encapsulant 1 was present in the wash liquor at a level of 10 ppm, Encapsulant 2 was present in the wash liquor at a level of 2 ppm, and PAP (if present) was present in the wash liquor at about 270 ppm. For each group, two trials were run and the average results for each group are shown in Table 2 below.
[0170] For the DFO score, a difference of 5 was considered to be directional different and a difference of 10 was considered to be perceptible to the consumer.
[0171] Table 2 :
[0172] Group Encapsulation (ppm) PAP? DFO (before scrape) DFO (after scrape) 1 (comparativ...
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