• 대한가정학회지
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• 제45권10호
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• pp.13-20
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• 2007

A new method for competent extraction of safflower (Carthamus tinctorius Linnaeus) colorants by using ultrasonic device was developed. When comparing to general extraction method, the ultrasonic method showed high extraction efficiency of safflower pigments. Ultrasonic method gave a higher extraction yield of red and yellow safflower pigments than using general method. It is supposed that the extraction efficiency is to be attributed to high vibration energies from ultrasound and finally induced physical changes of the pigments. Furthermore, this study explored the effects of ultrasonic treatment into the extracted safflower pigments on dyeing of cotton fabrics. Ultrasonic treatment into the extracted pigments exhibited significantly improved dyeing properties for the cotton fabrics.

• 한국염색가공학회지
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• 제23권4호
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• pp.290-297
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• 2011

In this study, the possibility of the practical development of highly sensitive clothing textiles using fibrillated wool fibers were considered by determining the dyeability, the physical and mechanical properties of fibrillated wool fibers treated under strong acid and high temperature ultrasonic wave irradation and they were compared with those of untreated wool fibers. The color strengths of the dyed fibrillated wool fabrics increased by the acid metal complex dyes contrary to the untreated wool fabrics, and color fastness properties to rubbing, light, and dry cleaning were excellent, similar to those of the untreated wool fabrics. The tensile strengths of fibrillated wool fabrics were also kept after the dyeing. Moreover, the Numeri, Fukurami, and THV of the fibrillated wool fabrics were better than those of the untreated wool fabrics.

• 한국염색가공학회지
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• 제16권1호
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• pp.40-47
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• 2004

Alkaline treatment gives Sea-Island type yam to produce microfiber and silk-like touch. But this treatment have some problems in dyeing and finishing process. To solve some problem occurred in dyeing and finishing of polyester fabric, the ultrasonic treatment technique was used recently. This study was carried out to confirm the effect of the ultrasonic treatment on alkaline weight loss finishing of polyester fiber under general alkaline treatment conditions; NaOH concentration 2, 3, 4, and 5％, treatment time 5, 10, 15, and 20 minutes, treatment temperature 70, 80, 90, and 99'E, respectively. On the other hand, the three way lay out method was used to test of significant obtained data from alkaline treatment. It was found that weight loss increased with increasing the NaOH concentration, temperature, and time. Also, in case of PET/Co-PET fabrics by ultrasonic, weight loss and dissolution of microfiber were superior to PET/Co-PET fabrics without ultrasonic. Tensile strength and modulus decreased with increasing NaOH concentrations and hydrolysis time. Therefore, the effect of alkali hydrolysis by ultrasonic application was better than that of the conventional method.

• 복식문화학회:학술대회논문집
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• 복식문화학회 2005년도 Joint International Conference
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• pp.132-133
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• 2005

• 한국의류산업학회지
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• 제11권2호
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• pp.337-343
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• 2009

This study systematically investigated a method for extraction of safflower (Carthamus tinctorius Linnaeus) colorants by ultrasonic treatment. Compared to pigments productivity and cell wall structures of safflower after general and ultrasonic method, the ultrasonic method showed high extraction efficiency of safflower pigments due to destruction of safflower cell wall caused by high vibration energies. Microscopic analysis confirmed the hypothesis that the ultrasonic treatment of safflower caused its cell wall structure loosened and made efficient extraction of safflower pigments. And also, LC-MS/MS analysis revealed that productivities of the yellow and red safflower pigments by ultrasonic method were 21.9% and 14.6% higher, respectively, than those of pigments extracted by general method. The ultrasonic extracted yellow and red colorants could be used to dye not only natural fibers like cotton, silk and wool, but also synthetic fiber like nylon, and generally gave a better color tone than the general extracted colorants from safflower due to the affinities of red and yellow colorant on different fibers. As the yellow and red colorant were extracted by ultrasonic treatment in water, the K/S value on of 550/440nm of cotton and rayon was increased but in the case of silk and wool the change of this value was almost not detected. Finally, this technique might provide a solution to establish reproducibility and standardization for the extraction and dyeing methods on fabrics.

• 한국염색가공학회지
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• 제12권3호
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• pp.207-217
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• 2000

A new, high-efficiency ultrasonic fabric washing machine was developed to be an energy-efficient washing machine and to enhance fabric washing quality in washing processes of the dyeing and finishing process in the textile industry. This system is composed of ultrasonic wave generator, air blowing nozzle, torque motor for fabric tension control, and enclosed washing bath, multi-tube type exchanger, noiseless heater, air cylinder, expander roller, mangle upper and lower rollers, bend bar, dancer, shower spray nozzle, and solenoid valve, and so on. These elements are synergised for fabric washing. One of the very important principles is the low tension fabric running system. For an efficient washing effect, a counter flow system is also adopted. The new system also adopts the dancer and torque motor to control fabric tension and prevent fabric creasing. Shower spray nozzle, counter flow and overflow apparatus, and air-blowing apparatus are adopted to enhance the fabric washing effect. In this study, peach yoryu, exter, and moss crepe fabrics were washed by the general and ultrasonic washing systems under different conditions respectively. The washing efficiency was affected by the fabric running speed and characteristics of fabrics. Size content after washing increased with increasing the fabric running speed. The values in the general washing system were higher than those of the ultrasonic washing system. The changes of conductivity in the ultrasonic and the cooling bath were affected by the running time under the ultrasonic generating. The values of conductivity decreased as the experimental time passed.

• 한국의류학회지
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• 제31권12호
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• pp.1754-1760
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• 2007

홍화 황색소의 면, 마, 레이온과 같은 셀룰로오스 섬유에 대한 염착량을 증진시키기 위하여 키토산 전처리를 행하였다. 키토산 전처리가 염착성, 색상, 염색견뢰도에 미치는 영향을 조사하였다. 섬유 종류에 관계없이 키토산 전처리는 염착성을 증진시켰으며, 농도가 증가함에 따라 계속 증가하였다. 2% 처리농도에서 미처리와 비교할 때 면은 5.6배, 모시는 7.2배, 레이온은 3.7배 염착량이 증가하였다. 키토산 전처리한 면과 모시는 YR 색상에서 Y 색상으로 변화하였으며, 레이온의 경우에는 전처리와 상관없이 Y 계열의 색상을 보였다. 키토산 전처리에 의해 색상은 노란색이 강하여졌으며 더 진하고 깊은 색상으로 변하였다. 키토산 전처리 직물은 염색온도에 따라 색상이 변화하였는데 공통적으로 50, $70^{\circ}C$에서는 YR 색상을 30, $90^{\circ}C$에서는 Y 색상을 나타냈다. 염색온도가 높을수록 색상은 진하고 칙칙하였다. 세탁견뢰도는 아주 낮았으며, 일광에 매우 약한 홍화 황색소의 특성을 고려할 때 일광견뢰도는 양호한 편이었다. 기존의 자동 염색기로 염색하는 경우와 비교할 때 초음파 염색법이 면과 모시의 염착량을 30% 이상 증진시키는 효과가 있음을 확인하였다. 레이온의 경우, 두 방법간의 염착량 차이는 없었다.

• 한국의류학회지
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• 제48권2호
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• pp.300-311
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• 2024

Amid global environmental concerns, initiatives to adopt sustainable industrial processes have garnered significant attention in diverse sectors. Efforts have centered on utilizing natural resources as dyeing and functionalizing agents in the textile industry. However, the limited color fastness and functional endurance of natural compounds remains a substantial challenge. This research investigated whether ultrasound could enhance the finishing effect of natural compounds on cotton fabrics. Chestnut shell extract was prepared and applied to cotton fabrics using a pad-dry-cure technique, with concurrent application of ultrasonic power. Once integrated into the fabrics, the chestnut shell extract exhibited prolonged health benefits for users. The findings demonstrated that ultrasound treatment during the finishing process facilitated the diffusion of natural compounds from the chestnut shell extract into the fabric structure, resulting in a substantial enhancement of the finishing effect, notably augmenting the antibacterial properties of the treated cotton fabrics.

• 보존과학회지
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• 제23권
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• pp.11-24
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• 2008

미륵사지석탑의 보존처리를 위해 화강암의 풍화에 따른 물리적 성능시험과 화학적 조성변화를 검토하였다. 자연 풍화된 미륵산 화강암을 수습하여 풍화상태에 따른 분류기준과 암석해머시험에 따라 강도를 구분하였다. 비 파괴 암석해머시험 강도와 초음파 속도를 비교한 결과, 각각의 강도 측정값은 비례하였다. 시료의 흡수율은 1.68~0.20%이며 신선한 F-형은 자연 포화되지 않았고 WW-형은 자연 포화되었으나 시간이 많이 소요되었다. 흡수율은 풍화정도에 따라 SW-형, MW-형, HW-형으로 가며 순차적으로 증가했다. CW-형은 풍화단계 시료들 중에서 흡수현상이 현저하게 달랐다. 염색시험에서는 F-형과 WW-형의 경우 정장석만이 염색되었고, SW-형과 MW-형에서는 사장석의 염색이 특징적이었으며 HW-형과 CW-형은 석영의 균열부로 염색이 확장되었다. 분류기준에 따른 조암광물의 변화는 3등급으로 대별할 수 있다. XRD 분석결과, 조암광물 중 알바이트가 현저하게 감소되었다. SEMEDX로 조암광물 중 흑운모, 사장석, 정장석을 구성하는 성분의 평균변화를 관찰한 결과, 신선한 시료에 비하여 풍화도가 높은 시료에서 흑운모는 $Al_2O_3$, $K_2O$, $Na_2O$는 증가하고 CaO, MgO는 감소하였으며, 사장석은 CaO, $K_2O$는 감소하고 $Na_2O$는 증가하였다. 정장석은 $Al_2O_3$가 약간 증가했고 $K_2O$, $Na_2O$는 감소되었다. 풍화단계별 시료를 파쇄하여 양이온의 용출 정도를 검토한 결과, 조암광물 구성성분 중 CaO, $Na_2O$, $K_2O$, MgO가 화학적 변화도가 높았으며, 풍화도 WW-형과 CW-형에서 양이온의 변화도가 높게 나타났다. 이 결과는 익산 미륵사지석탑을 구성하는 부재의 보존처리 방안을 수립하는데 중요한 자료로 이용될 것이다.