Bose polypeptide tightening spray and preparation method thereof

Abstract

The invention relates to the technical field of cosmetics, in particular to a vitriol polypeptide tightening spray and a preparation method thereof. The invention discloses a skin care product which at least comprises the following components in percentage by weight: 0.1-1% of a first skin conditioner, 3-8% of a first humectant, 0.1-1% of a second skin conditioner, 0.1-1% of a second humectant, 1-8% of a third skin conditioner, 0.5-3% of a third humectant, 0.0001-0.01% of a solubilizer, 0.0001-0.02% of an aromatic, 0.001-0.3% of a chelating agent and the balance of water. The utilization rate of active ingredients is greatly improved, and the anti-wrinkle and firming effects are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of cosmetics, in particular to a bosaiin polypeptide firming spray and a preparation method thereof. Background Art

[0002] With the development of social economy and the continuous improvement of people's living standards, the demand for cosmetics market is also constantly improving and improving, and the demand for functional cosmetics is getting higher and higher, especially the demand for anti-aging and firming functional cosmetics has increased significantly. At present, the anti-aging and firming products on the market are mainly endowed with certain anti-aging effects by adding one or several active ingredients. For example, a Chinese patent application (publication number CN115350128A) discloses a skin lightening and anti-wrinkle composition and its preparation method and application, which mainly uses quince seed extract, peach resin extract, turmeric root extract, and dog rose fruit extract as active ingredients to achieve the skin lightening and anti-wrinkle effect of the composition. A Chinese patent application (publication number CN115607500A) discloses a polypeptide firming essence and a preparation method thereof. By optimizing the conditioning agents in the essence, including biosaccharide gum-1, Pseudoalteromonas fermentation product extract and peach resin extract, and supplemented with small molecule sodium hyaluronate to promote penetration, the product is endowed with enhanced epidermal cohesion and barrier function, achieving long-lasting moisturizing and firming effects. However, the compatibility and stability of the product formula need to be further improved. In actual use, there may be problems with the ineffectiveness of active ingredients, which greatly reduces the utilization rate of the active ingredients. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a Bosin polypeptide firming spray, which optimizes the product formula system to ensure the compatibility and stability of the product formula, greatly improves the utilization rate of active ingredients, and achieves anti-wrinkle and firming effects.

[0004] On the one hand, the present invention provides a Bose polypeptide firming spray, which comprises at least the following components by mass percentage: a first skin conditioner 0.1-1%, a first moisturizer 3-8%, a second skin conditioner 0.1-1%, a second moisturizer 0.1-1%, a third skin conditioner 1-8%, a third moisturizer 0.5-3%, a solubilizer 0.0001-0.01%, a fragrance 0.0001-0.02%, a chelating agent 0.001-0.3%, and water to make up the balance.

[0005] Preferably, the Bose polypeptide firming spray comprises at least the following components by mass percentage: 0.25% of a first skin conditioner, 5.65% of a first moisturizer, 0.24% of a second skin conditioner, 0.55% of a second moisturizer, 6.5% of a third skin conditioner, 1.7% of a third moisturizer, 0.003% of a solubilizer, 0.001% of a fragrance, 0.02% of a chelating agent, and the balance is made up of water.

[0006] As a preferred technical solution, the first skin conditioning agent at least includes allantoin, erythritol, and oat (AVENASATIVA) β-glucan.

[0007] Preferably, the mass ratio of allantoin, erythritol and oat (AVENASATIVA) β-glucan is (0.1-0.2):0.09:0.01, preferably 0.15:0.09:0.01.

[0008] As a preferred technical solution, the first moisturizer is selected from at least one of 1,3-propylene glycol, ethoxydiglycol, dipropylene glycol, p-hydroxyacetophenone, 1,2-hexanediol, caprylyl glycol, butylene glycol, betaine, and hydrolyzed sodium hyaluronate.

[0009] Preferably, the first moisturizing agent includes 1,3-propylene glycol, ethoxydiglycol, dipropylene glycol, p-hydroxyacetophenone, 1,2-hexanediol, caprylyl glycol, butylene glycol, betaine, and hydrolyzed sodium hyaluronate.

[0010] Preferably, the mass ratio of 1,3-propylene glycol, ethoxydiglycol, dipropylene glycol, p-hydroxyacetophenone, 1,2-hexanediol, caprylyl glycol, butylene glycol, betaine, and hydrolyzed sodium hyaluronate is 3: (1-2): (0.2-0.5): (0.1-0.3): (0.05-0.2): (0.01-0.1): (0.01-0.05): (0.1-0.5), (0.01-1).

[0011] Preferably, the mass ratio of 1,3-propylene glycol, ethoxydiglycol, dipropylene glycol, p-hydroxyacetophenone, 1,2-hexanediol, caprylyl glycol, butylene glycol, betaine, and hydrolyzed sodium hyaluronate is 3:1.5:0.368:0.264:0.104:0.048:0.016:0.3:0.05.

[0012] As a preferred technical solution, the second skin conditioning agent at least includes hydroxypropyl tetrahydropyrantriol, tetrahydromethylpyrimidine carboxylic acid, and glucosylrutin.

[0013] Preferably, the mass ratio of hydroxypropyl tetrahydropyrantriol, tetrahydromethylpyrimidine carboxylic acid and glucosylrutin is (0.05-0.2): (0.05-0.2): (0.01-0.05).

[0014] Preferably, the mass ratio of hydroxypropyl tetrahydropyrantriol, tetrahydromethylpyrimidine carboxylic acid, and glucosylrutin is 0.11:0.11:0.02.

[0015] As a preferred technical solution, the second humectant is selected from at least one of diglycerin, glucose and panthenol.

[0016] Preferably, the second moisturizing agent includes diglycerin, glucose, panthenol

[0017] Preferably, the mass ratio of diglycerol, glucose and panthenol is (0.1-0.6):(0.01-0.1):(0.01-1).

[0018] Preferably, the mass ratio of diglycerol, glucose and panthenol is 0.425:0.075:0.05.

[0019] As a preferred technical solution, the third skin conditioner includes at least one of a polypeptide, a peach (PRUNUSPERSICA) resin extract, a scutellaria (SCUTELLARIABAICALENSIS) root extract, a glycyrrhiza inflata (GLYCYRRHIZAINFLATA) root extract, and a sophora flavescens (SOPHORA ANGUSTIFOLIA) root extract.

[0020] Preferably, the polypeptide includes at least one of acetyl hexapeptide-8, arginine / lysine polypeptide, palmitoyl tripeptide-1, palmitoyl pentapeptide-4, and palmitoyl tetrapeptide-7.

[0021] As a preferred technical solution, the third skin conditioning agent at least includes CT001-R, CT006-004, CT0023-001, Immedeline PG, and Comthing SGS.

[0022] Preferably, the mass ratio of CT001-R, CT006-004, CT0023-001, Immedeline PG, and Comthing SGS is (1-5): (0.5-3): (0.5-3): (0.5-3): (0.1-1).

[0023] Preferably, the mass ratio of CT001-R, CT006-004, CT0023-001, Immedeline PG, and Comthing SGS is 3:1:1:1:0.5.

[0024] As a preferred technical solution, the third moisturizer includes at least one of bis-PEG-12 polydimethylsiloxane, trimethylpentanediol / adipic acid / glycerol cross-linked polymer, hydroxylated lecithin, and dimethyl isosorbide.

[0025] Preferably, the third moisturizer includes bis-PEG-12 polydimethylsiloxane, trimethylpentanediol / adipic acid / glycerol cross-linked polymer, hydroxylated lecithin, and dimethyl isosorbide.

[0026] Preferably, the mass ratio of the bis-PEG-12 polydimethylsiloxane, trimethylpentanediol / adipic acid / glycerol crosslinked polymer, and hydroxylated lecithin is (0.5-2):(0.1-1):(0.01-0.1):(0.1-0.5).

[0027] Preferably, the mass ratio of the bis-PEG-12 polydimethylsiloxane, trimethylpentanediol / adipic acid / glycerol crosslinked polymer, hydroxylated lecithin, and isosorbide dimethyl ether is 1:0.475:0.025:0.2.

[0028] As a preferred technical solution, the solubilizer includes at least PPG-26-butanol polyether-26 and PEG-40 hydrogenated castor oil.

[0029] Preferably, the trade name of the solubilizer is SOLUBILISANT LRI, which is sourced from Senxin Flavor & Pigment Technology (China) Co., Ltd.

[0030] As a preferred technical solution, the chelating agent at least includes disodium EDTA.

[0031] The present invention is to give spray certain anti-wrinkle and firming effect, mainly by introducing hydroxypropyl tetrahydropyrantriol to cooperate with acetyl hexapeptide-8, arginine / lysine polypeptide, palmitoyl tripeptide-1, palmitoyl pentapeptide-4, palmitoyl tetrapeptide-7 to cooperate with other skin conditioning agents to achieve, through the test subject evaluation result, it can be known that the spray containing the above-mentioned functional component combination can significantly improve skin dry lines, fine lines and skin elasticity, and the product has certain anti-wrinkle effect and firming effect. Further, by optimizing the moisturizing effect of the spray by coordinating the moisturizing agent in the system, the refreshing feeling of the spray is ensured, and after use, there is a fresh and moist texture, effectively replenishes the required moisture for the skin, improves dry skin, and makes the skin soft, smooth, firm and elastic. Especially controlling the first moisturizing agent to contain hydrolyzed hyaluronate sodium, the third skin conditioning agent includes Immedeline PG, and the formula compatibility and stability of the product system are guaranteed, and the product will not change color, be turbid, have peculiar smell and the problem of bacterial colony, mold and yeast breeding under high temperature and high humidity.

[0032] In addition, the present invention adopts solubilizing agents including PPG-26-butanol polyether-26 and PEG-40 hydrogenated castor oil to solubilize and premix the flavor in the system, and cooperates with the alcohol raw materials in the system to ensure that the prepared spray is a colorless and transparent liquid, the product has high fragrance acceptance and good user experience.

[0033] The spray provided by the present invention optimizes the combination of the first, second and third skin conditioners in the system with the first, second and third moisturizers to make the provided product mild and non-irritating, meet the use needs of people with different skin conditions, and is easy to use in the spray form, with high market promotion value.

[0034] Another aspect of the present invention provides a method for preparing a bosaiin polypeptide firming spray, comprising at least the following steps:

[0035] S1. Premixing the fragrance and the solubilizer to obtain phase A;

[0036] S2. Add water and a chelating agent to a container, heat to 70-90° C., add a first moisturizer and a first skin conditioner, stir and mix, and keep warm to obtain phase B;

[0037] S3, cool phase B to 40-60°C, add the second moisturizer and the second skin conditioner while stirring, and stir to obtain a mixed phase C;

[0038] S4, controlling the temperature of the mixed phase C, adding the third moisturizer, the third skin conditioning agent, and the phase A, stirring and mixing to obtain a semi-finished product, and sieving and discharging the semi-finished product after the pH value thereof is found to be qualified.

[0039] As a preferred technical solution, the stirring and mixing speed in step S2 is 20-30 rpm, the time is 5-10 min, and the insulation time is 5-15 min.

[0040] As a preferred technical solution, the stirring and mixing speed in step S3 is 15-25 pm and the time is 5-10 min.

[0041] As a preferred technical solution, the stirring and mixing speed in step S4 is 15-25 pm and the time is 5-10 min.

[0042] As a preferred technical solution, the pH in step S4 is 5.3-6.3.

[0043] As a preferred technical solution, the mesh size of the sieving is 80-120 meshes, preferably 100 meshes.

[0044] Beneficial Effects

[0045] 1. The present invention provides a Bosin polypeptide firming spray, which is mainly achieved by introducing hydroxypropyl tetrahydropyrantriol in combination with acetyl hexapeptide-8, arginine / lysine polypeptide, palmitoyl tripeptide-1, palmitoyl pentapeptide-4, palmitoyl tetrapeptide-7 and other skin conditioners. According to the evaluation results of the subjects, the use of a spray containing the above-mentioned effective ingredient combination can significantly improve skin dry lines, fine lines and skin elasticity, and the product has certain anti-wrinkle and firming effects.

[0046] 2. The present invention improves the moisturizing effect of the spray while ensuring the refreshing feeling of the spray by optimizing the combination of moisturizers in the system. After use, the spray has a fresh and moist texture, effectively replenishes the moisture required by the skin, improves dry skin, and makes the skin hydrated, smooth, firm and elastic.

[0047] 3. The present invention ensures the formula compatibility and stability of the product system by controlling the first moisturizer to contain hydrolyzed sodium hyaluronate and the third skin conditioning agent to include Immedeline PG. The product will not change color, become turbid, have peculiar smell, or have problems such as bacterial colonies, mold and yeast growth under high temperature and high humidity.

[0048] 4. The present invention adopts solubilizing agents including PPG-26-butanol polyether-26 and PEG-40 hydrogenated castor oil to solubilize and premix the flavor in the system, and cooperates with the alcohol raw materials in the system to ensure that the prepared spray is a colorless and transparent liquid, the product has high fragrance acceptance and good user experience.

[0049] 5. The spray provided by the present invention optimizes the first, second and third skin conditioners in the system in combination with the first, second and third moisturizers, so that the provided product is mild and non-irritating, meeting the needs of people with different skin conditions, and the spray form is easy to use and has a high market promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1-9 This is a consumer questionnaire survey report on the Bosin polypeptide firming spray provided in Example 1. DETAILED DESCRIPTION

[0051] Example 1

[0052] Example 1 of the present invention provides a bosaiin polypeptide firming spray, which includes the following components by mass percentage: 0.25% of a first skin conditioner, 5.65% of a first moisturizer, 0.24% of a second skin conditioner, 0.55% of a second moisturizer, 6.5% of a third skin conditioner, 1.7% of a third moisturizer, 0.003% of a solubilizer, 0.001% of a fragrance, 0.02% of a chelating agent, and the balance made up of water.

[0053] The first skin conditioner includes allantoin, erythritol, and oat (AVENA SATIVA) β-glucan, and the mass ratio of the allantoin, erythritol, and oat (AVENASATIVA) β-glucan is 0.15:0.09:0.01.

[0054] The first moisturizing agent includes 1,3-propylene glycol, ethoxydiglycol, dipropylene glycol, p-hydroxyacetophenone, 1,2-hexanediol, caprylyl glycol, butylene glycol, betaine, and hydrolyzed sodium hyaluronate.

[0055] The mass ratio of the 1,3-propylene glycol, ethoxydiglycol, dipropylene glycol, p-hydroxyacetophenone, 1,2-hexanediol, caprylyl glycol, butylene glycol, betaine, and hydrolyzed sodium hyaluronate is 3:1.5:0.368:0.264:0.104:0.048:0.016:0.3:0.05.

[0056] The trade name of the hydrolyzed sodium hyaluronate is Ximinxiu Super Active Hyaluronic Acid, which comes from Huaxi Biotechnology Co., Ltd.

[0057] The second skin conditioning agent includes hydroxypropyl tetrahydropyrantriol, tetrahydromethylpyrimidine carboxylic acid, and glucosyl rutin, and the mass ratio of hydroxypropyl tetrahydropyrantriol, tetrahydromethylpyrimidine carboxylic acid, and glucosyl rutin is 0.11:0.11:0.02.

[0058] The trade name of the hydroxypropyl tetrahydropyrantriol is Borin S, which is sourced from Shandong Freda Biotechnology Co., Ltd.; the tetrahydromethylpyrimidine carboxylic acid (ECTOIN) is sourced from Shanghai Jiakai Biotechnology Co., Ltd.; and the glucosylrutin is sourced from Xianting (Guangzhou) Trading Co., Ltd.

[0059] The second moisturizing agent includes diglycerin, glucose and panthenol, wherein the mass ratio of the diglycerin, glucose and panthenol is 0.425:0.075:0.05. The trade name of the diglycerin and glucose is SHARODERM DGL MB, which comes from SHARONPERSONAL CARES.RL.

[0060] The third skin conditioner includes CT001-R, CT006-004, CT0023-001, Immedeline PG, and Comthing SGS. The mass ratio of CT001-R, CT006-004, CT0023-001, Immedeline PG, and Comthing SGS is 3:1:1:1:0.5.

[0061] The CT001-R, CT006-004, and CT0023-001 are all from Hangzhou Chuangpeptide Biotechnology Co., Ltd.; the Immedeline PG and Comthing SGS are both from Shanghai Jiakai Biological Co., Ltd.

[0062] The third moisturizer includes bis-PEG-12 polydimethylsiloxane, trimethylpentanediol / adipic acid / glycerol cross-linked polymer, hydroxylated lecithin, and isosorbide dimethyl ether. The mass ratio of the bis-PEG-12 polydimethylsiloxane, trimethylpentanediol / adipic acid / glycerol cross-linked polymer, hydroxylated lecithin, and isosorbide dimethyl ether is 1:0.475:0.025:0.2.

[0063] The trade name of trimethylpentanediol / adipic acid / glycerol crosslinked polymer and hydroxylated lecithin is ZANMOIS HR, which comes from Hunan Qixi New Materials Technology Co., Ltd.

[0064] The trade name of the solubilizer is SOLUBILISANT LRI, which comes from Senxin Flavor and Pigment Technology (China) Co., Ltd.

[0065] The chelating agent is disodium EDTA.

[0066] The fragrance is (daily-use) essence, the trade name of which is (daily-use) essence-30405193, and it comes from Givaudan Daily Fragrances and Fragrances (Shanghai) Co., Ltd.

[0067] Embodiment 1 of the present invention provides a method for preparing a bosaiin polypeptide firming spray, comprising the following steps:

[0068] S1. Premixing the fragrance and the solubilizer to obtain phase A;

[0069] S2. Add water and a chelating agent to a container, heat to 80±2° C., add a first moisturizer and a first skin conditioner, stir and mix, and keep warm to obtain phase B;

[0070] S3, cool phase B to 50±2°C, add the second moisturizer and the second skin conditioner while stirring, and stir to obtain a mixed phase C;

[0071] S4. Control the temperature of the mixed phase C to 50±2° C., add the third moisturizer, the third skin conditioner and phase A, and stir to obtain a semi-finished product. After the semi-finished product has a qualified pH value, sieve it, and discharge it.

[0072] The stirring and mixing speed in step S2 is 22 rpm, the time is 5 min, and the insulation time is 10 min.

[0073] The stirring and mixing speed in step S3 is 18 pm and the time is 10 min.

[0074] The stirring and mixing speed in step S4 is 18 pm and the time is 5 min.

[0075] The pH in step S4 is 6.02.

[0076] The mesh number of the sieving is 100 meshes.

[0077] Example 2

[0078] Example 2 of the present invention provides a bosaiin polypeptide firming spray and a preparation method thereof. The specific implementation manner is the same as that of Example 1, except that, by mass percentage, it comprises the following components: 0.25% of a first skin conditioning agent, 5.6% of a first moisturizing agent, 0.24% of a second skin conditioning agent, 0.55% of a second moisturizing agent, 6.5% of a third skin conditioning agent, 1.7% of a third moisturizing agent, 0.003% of a solubilizing agent, 0.001% of a fragrance, 0.01% of a chelating agent, and 0.06% of a chelating agent. 02%, and water makes up the balance; the first moisturizing agent includes 1,3-propylene glycol, ethoxydiglycol, dipropylene glycol, p-hydroxyacetophenone, 1,2-hexanediol, caprylyl glycol, butylene glycol, and betaine, and the mass ratio of 1,3-propylene glycol, ethoxydiglycol, dipropylene glycol, p-hydroxyacetophenone, 1,2-hexanediol, caprylyl glycol, butylene glycol, and betaine is 3:1.5:0.368:0.264:0.104:0.048:0.016:0.3.

[0079] Example 3

[0080] Example 3 of the present invention provides a Bose polypeptide firming spray and a preparation method thereof. The specific implementation manner is the same as that of Example 1, except that, by mass percentage, it includes the following components: 0.25% of a first skin conditioner, 5.65% of a first moisturizer, 0.24% of a second skin conditioner, 0.55% of a second moisturizer, 5.5% of a third skin conditioner, 1.7% of a third moisturizer, 0.003% of a solubilizer, 0.001% of a fragrance, 0.02% of a chelating agent, and the balance is made up of water; the third skin conditioner includes CT001-R, CT006-004, CT0023-001, and a plant allergy-relieving agent (Comthing SGS), and the mass ratio of CT001-R, CT006-004, CT0023-001, and a plant allergy-relieving agent (Comthing SGS) is 3:1:1:0.5.

[0081] Performance Testing

[0082] 1. The spray product provided in Example 1 was subjected to room temperature stability test (25°C, 1 day), high temperature stability test (50±2°C, 5 days) and accelerated aging stability test (40±2°C, RH75%±2%, 30 days). The test methods, standard requirements and test results are shown in Table 1.

[0083] Table 1

[0084]

[0085] 2. The spray product provided in Example 2 was subjected to room temperature stability test (25°C, 1 day), high temperature stability test (50±2°C, 5 days) and accelerated aging stability test (40±2°C, RH75%±2%, 30 days). The test methods, standard requirements and test results are shown in Table 2.

[0086] Table 2

[0087]

[0088] 3. The spray product provided in Example 3 was subjected to room temperature stability test (25°C, 1 day), high temperature stability test (50±2°C, 5 days) and accelerated aging stability test (40±2°C, RH75%±2%, 30 days). The test methods, standard requirements and test results are shown in Table 3.

[0089] Table 3

[0090]

[0091]

[0092] 4. Conduct a consumer questionnaire survey on the spray product provided in Example 1. The consumer questionnaire survey report is available at Figure 1-9 .

Claims

1. A Bosin polypeptide firming spray, characterized in that: Calculated by mass percentage, it includes at least the following components: a first skin conditioner 0.1-1%, a first moisturizer 3-8%, a second skin conditioner 0.1-1%, a second moisturizer 0.1-1%, a third skin conditioner 1-8%, a third moisturizer 0.5-3%, a solubilizer 0.0001-0.01%, a fragrance 0.0001-0.02%, a chelating agent 0.001-0.3%, and water makes up the balance.

2. The Bosin polypeptide firming spray according to claim 1, characterized in that: The first skin conditioning agent at least includes allantoin, erythritol, and oat beta-glucan.

3. The Bosin polypeptide firming spray according to claim 1, characterized in that: The first moisturizer is selected from at least one of 1,3-propylene glycol, ethoxydiglycol, dipropylene glycol, p-hydroxyacetophenone, 1,2-hexanediol, caprylyl glycol, butylene glycol, betaine, and hydrolyzed sodium hyaluronate.

4. The Bosin polypeptide firming spray according to claim 3, characterized in that: The first moisturizing agent includes 1,3-propylene glycol, ethoxydiglycol, dipropylene glycol, p-hydroxyacetophenone, 1,2-hexanediol, caprylyl glycol, butylene glycol, betaine, and hydrolyzed sodium hyaluronate.

5. The Bosin polypeptide firming spray according to claim 1, characterized in that: The second skin conditioning agent at least includes hydroxypropyl tetrahydropyrantriol, tetrahydromethylpyrimidine carboxylic acid, and glucosylrutin.

6. The Bosin polypeptide firming spray according to claim 1, characterized in that: The second moisturizing agent is selected from at least one of diglycerin, glucose and panthenol.

7. The Bosin polypeptide firming spray according to claim 1, characterized in that: The third skin conditioning agent includes at least one of polypeptide, peach resin extract, scutellaria root extract, glycyrrhiza inflata root extract, and sophora flavescens root extract.

8. The Bosin polypeptide firming spray according to claim 7, characterized in that: The polypeptide includes at least one of acetyl hexapeptide-8, arginine / lysine polypeptide, palmitoyl tripeptide-1, palmitoyl pentapeptide-4, and palmitoyl tetrapeptide-7.

9. The Bosin polypeptide firming spray according to claim 1, characterized in that: The third moisturizer includes at least one of bis-PEG-12 polydimethylsiloxane, trimethylpentanediol / adipic acid / glycerol cross-linked polymer, hydroxylated lecithin, and dimethyl isosorbide.

10. A method for preparing the Bosaiin polypeptide firming spray according to any one of claims 1 to 9, characterized in that: At least the following steps are included: S1. Premixing the fragrance and the solubilizer to obtain phase A; S2. Add water and a chelating agent to a container, heat to 70-90° C., add a first moisturizer and a first skin conditioner, stir and mix, and keep warm to obtain phase B; S3, cool phase B to 40-60°C, add the second moisturizer and the second skin conditioner while stirring, and stir to obtain a mixed phase C; S4, controlling the temperature of the mixed phase C, adding the third moisturizer, the third skin conditioning agent, and the phase A, stirring and mixing to obtain a semi-finished product, and sieving and discharging the semi-finished product after the pH value thereof is found to be qualified.

Images