TW201837264A

TW201837264A - Cleaning method, washing machine, dish washer, and toilet

Info

Publication number: TW201837264A
Application number: TW107102481A
Authority: TW
Inventors: 內山具典; 笹木宏格
Original assignee: 日商東芝生活電器股份有限公司
Priority date: 2017-04-13
Filing date: 2018-01-24
Publication date: 2018-10-16
Also published as: JP2018175443A; CN110073050A; WO2018189973A1; JP7185390B2; TWI678444B

Abstract

The cleaning method, washing machine, dish washer, and toilet according to the present invention involve cleaning an object to be cleaned with a cleaning solution in which are mixed fine-bubble water comprising 1*105 or more fine bubbles per 1 ml having a particle size of 500 nm or less and a surfactant.

Description

Washing method, washing machine, dishwasher and toilet

[0001] 本發明的實施形態，是關於洗淨方法、洗衣機、餐具洗淨機及便器。[0001] Embodiments of the present invention relate to a washing method, a washing machine, a dishwasher, and a toilet.

[0002] 近年來，稱為微氣泡、奈米氣泡的粒子徑數十nm～數μm尺寸的微細氣泡受到矚目，並提案使用含有許多微細氣泡的微細氣泡水洗淨洗淨對象的技術。於此，例如洗淨油污等的時候，使用洗劑等的界面活性劑為一般。然而，在以往構造，對於微細氣泡與界面活性劑的互相作用並沒有進行充分的驗證，而不能充分顯現出微細氣泡與界面活性劑的互相作用所致的效果。 [先行技術文獻] [專利文獻] 　　[0003] 　　[專利文獻1] 日本特開2006-43103號公報[0002] In recent years, microbubbles having a particle diameter of several tens nm to several μm, which are called microbubbles and nanobubbles, have attracted attention, and a technique for washing and cleaning objects with microbubbles containing many microbubbles has been proposed. Here, for example, when cleaning oil stains, it is common to use a surfactant such as a lotion. However, in the conventional structure, the interaction between the microbubbles and the surfactant has not been fully verified, and the effect due to the interaction between the microbubbles and the surfactant has not been sufficiently exhibited. [Preceding Technical Documents] [Patent Documents] [0003] [Patent Document 1] Japanese Patent Laid-Open No. 2006-43103

[發明所欲解決之課題] 　　[0004] 於此，提供顯現出微細氣泡與界面活性劑的互相作用所致的效果，而可使洗淨效率提升的洗淨方法、使用該洗淨方法的洗衣機、餐具洗淨機及便器。 [解決課題用的手段] 　　[0005] 本實施形態所致的洗淨方法，係藉由將每1ml含有1×10^5個以上的粒子徑500nm以下的微細氣泡之微細氣泡水、與界面活性劑予以混合的洗淨液來洗淨洗淨對象之洗淨方法。　　[0006] 又，本實施形態所致的洗衣機、餐具洗淨機及便器，是使用藉由將每1ml含有1×10^5個以上的粒子徑500nm以下的微細氣泡之微細氣泡水、與界面活性劑予以混合的洗淨液來洗淨洗淨對象之洗淨方法。[Problems to be Solved by the Invention] 0004 [0004] Here, a washing method capable of improving the washing efficiency by showing an effect due to the interaction between fine bubbles and a surfactant, and a washing machine using the washing method , Tableware washing machine and toilet. [Means for Solving the Problem] [0005] The cleaning method according to this embodiment uses fine bubble water containing 1 × 10 ^ 5 or more fine particles with a particle diameter of 500 nm or less per 1 ml, and interfacial activity. A cleaning method in which the cleaning agent is mixed with a cleaning agent to wash the object to be cleaned. [0006] In the washing machine, dishwasher, and toilet according to this embodiment, microbubble water containing microbubbles containing 1 × 10 ^ 5 or more particles having a diameter of 500 nm or less per 1 ml is used. A cleaning method in which an active agent is mixed with a cleaning solution to wash and wash objects.

[0008] 以下，一邊參照圖面一邊針對一實施形態進行說明。　　如圖1及圖2所示，本實施形態，是藉由將每1ml含有1×10^5個以上的粒子徑500nm以下的微細氣泡之微細氣泡水、更理想是每1ml含有1×10^5個以上的粒子徑250nm以下的微細氣泡之微細氣泡水、與界面活性劑予以混合的洗淨液，亦即，藉由界面活性劑溶液來洗淨洗淨對象之洗淨方法。本實施形態中，界面活性劑可使用肥皂等來自天然的界面活性劑、合成洗劑等所含有的合成界面活性劑等。肥皂、合成洗劑亦可為固形、液體、粉體的任一形狀。　　[0009] 微細氣泡水，是指大量含有直徑為奈米級的微細氣泡的水或溶液。亦即，本實施形態的洗淨方法使用的微細氣泡水比起自來水含有大量粒子徑為奈米級的微細氣泡。微細氣泡，是例如局部縮小水等的液體流動的流路的剖面積，使通過其流路的液體急遽減壓，藉此，將液體中的溶存空氣析出而可產生。又，微細氣泡，也可例如對於通過流路的水等的液體以高速混入外部的空氣而產生。　　[0010] 本實施形態的洗淨方法所使用的微細氣泡水，是如圖1所示被設定成每個粒子徑500nm以下的微細氣泡的直徑，亦即，每個粒子徑的個數分布的最大峰值P1落在粒子徑100nm±70nm的範圍內，更理想是落在粒子徑100nm±50nm的範圍內，又更理想是落在粒子徑100nm±30nm的範圍內。此時，每個微細氣泡的粒子徑的個數分布的最大峰值P1出現在粒子徑80nm附近。　　[0011] 又，第2個峰值P2出現在粒子徑140nm附近，第3個峰值P3出現在粒子徑110nm附近。又，第4個峰值P4出現在粒子徑50nm附近，第5個峰值P5出現在粒子徑220nm附近。在本實施形態，每個粒子徑500nm以下的微細氣泡的直徑的個數分布中，包含最大峰值P1的至少2個峰值，此時，最大峰值P1與第3個峰值P3落在粒子徑100nm±30nm的範圍內。　　[0012] 本實施形態的洗淨方法所使用微細氣泡水，是設定成粒子徑100nm±30nm的範圍內的微細氣泡的數量占粒子徑500nm以下的微細氣泡的數量的比率為50%以上。本實施形態的情況，如圖2所示，微細氣泡水，是每1ml含有1.0×10^6個以上的粒子徑500nm以下的微細氣泡，此時，含有1.25×10^6個左右。之中，在粒子徑100nm±30nm的範圍內的微細氣泡，是8.25×10^5個左右。因此，微細氣泡水，是粒子徑100nm±30nm的範圍內的微細氣泡的數量占粒子徑500nm以下的微細氣泡的數量的比率約66%。　　[0013] 本案發明者，是根據以下的程序使用上述的微細氣泡水針對洗淨液中的微細氣泡的數量、與相對於皮脂污垢的洗淨性能的提升率的相關性進行驗證。此外，本驗證中的微細氣泡意指粒子徑500nm以下者。　　[0014] (人工皮脂污垢的污染成分的調製) 　　將三氯甲烷作為溶媒溶解油酸及三油酸甘油酯，將包含32.5%的油酸及17.5%的三油酸甘油酯的50%溶液作為污染成分。　　[0015] (試料的人工污染及調製) 　　讓上述污染成分的溶液40ml均勻地滲入150mm×200mm的棉布，在室內進行24小時的自然乾燥之後，裁斷成50mm角的布片獲得污染布。又，將沒有讓污染成分的溶液滲入的棉布作為原布。　　[0016] (試驗方法) 　　將污染布的1個作為不進行洗淨的基準片。又，將6個污染布分別藉由含有1.30×10^6個/ml的微細氣泡的洗淨液、含有6.5×10^5個/ml的微細氣泡的洗淨液、含有3.25×10^5個/ml的微細氣泡的洗淨液、含有2.6×10^5個/ml的微細氣泡的洗淨液、含有1.60×10^5個/ml的微細氣泡的洗淨液、以及沒有混入微細氣泡的洗淨液的6種類的洗淨液進行洗淨，之後在室內進行24小時的自然乾燥。藉此，分別獲得評價片1～5、及比較片。　　[0017] 此外，在各洗淨液溶解同一量的洗劑。亦即，洗淨比較片用的洗淨液，是在自來水溶解規定量的市售的洗劑者。又，洗淨評價片1～5用的洗淨液，是分別在混入了上述預定的微細氣泡的自來水溶解規定量的市售的洗劑者。洗劑的溶解量，是例如被記載在其洗劑的使用說明說的規定量。又，比較片及各評價片1～5的洗淨，是使用市售的洗衣機在同一運轉內容中進行。　　[0018] 接著，將作為油溶性色素紫羅蘭色油溶解在混合比為乙醇：水=13：7的乙醇水溶液的溶媒，獲得濃度0.664mg/ml的染色液。然後，將各評價片1～5及比較片浸漬在染色液15分鐘進行染色之後，以乙醇水溶液、水的順序進行洗清，洗去多餘的染色液，之後，將比較片及各評價片1～5及比較片在室內進行24小時的自然乾燥。　　[0019] 接著，使用色差計量測原布與基準片的色差作為各評價片1～5及比較片的洗淨前色差。又，量測原布與各評價片1～5及比較片的色差作為各評價片1～5及比較片的洗淨後色差。然後，依據下式(1)算出評價片1～5及比較片的洗淨度，進行相對於比較片的洗淨度的各評價片1～5的洗淨度的比較。　　洗淨度=1-(洗淨後色差)/(洗淨前色差)･･･(1) 　　[0020] 圖3表示試驗的結果。此外，圖3中的「混合比例」，是將每1ml含有1.30×10^6個的微細氣泡的微細氣泡水設成100%的微細氣泡水，將自來水混入其100%的微細氣泡水來精製洗淨液時，表示微細氣泡水佔洗淨液整體的比率者。圖3中的「微細氣泡濃度」，是表示各洗淨液的每1ml所含有的微細氣泡的數量。而且，圖3中的「對數值」，是以10為底的常用對數表示各洗淨液的微細氣泡濃度者。　　[0021] 根據圖3所示的試驗結果，在用含有1.30×10^6個/ml的微細氣泡的洗淨液進行洗淨的評價片1，相對於用不含微細氣泡的洗淨液進行洗淨的比較片，可看出提升19.2%的洗淨性能。又，在用含有6.5×10^5個/ml的微細氣泡的洗淨液進行洗淨的評價片2，相對於用不含微細氣泡的洗淨液進行洗淨的比較片，可看出提升13.7%的洗淨性能。又，在用含有3.25×10^5個/ml的微細氣泡的洗淨液進行洗淨的評價片3，相對於用不含微細氣泡的洗淨液進行洗淨的比較片，可看出提升13.0%的洗淨性能。　　[0022] 又，在用含有2.6×10^5個/ml的微細氣泡的洗淨液進行洗淨的評價片4，相對於用不含微細氣泡的洗淨液進行洗淨的比較片，可看出提升12.6%的洗淨性能。而且，在用含有1.60×10^5個/ml的微細氣泡的洗淨液進行洗淨的評價片5，相對於用不含微細氣泡的洗淨液進行洗淨的比較片，可看出提升10.7%的洗淨性能。　　[0023] 圖4，是針對圖3的各評價片1～5，將橫軸作為洗淨液中的微細氣泡数的對數表示者，將縱軸作為洗淨性能提升率表示者。而且，在圖4將橫軸，亦即，將洗淨液中的微細氣泡的濃度作為X軸，將縱軸，亦即，將洗淨性能的提升率作為Y軸時，藉由最小二乘法所算出的近似曲線可在下式(2)表示。又，此時的相關係數R^2是0.908。　　Y=(5.02×10^(-4))X^(3.25)･･･(2) 　　[0024] 根據圖4、式(2)、及其相關係數R^2，可知隨著洗淨液中的微細氣泡量的大增，洗淨性能幾乎線形，亦即幾乎一次線性方式上升。亦即，根據本試驗，在洗淨液中的微細氣泡的數量與洗淨性能之間，可知具有高的相關性。而且，若根據式(2)，當洗淨液中的微細氣泡的數量為1.0×10^5個/ml時，亦即X=5的時候，可導出比起用不含微細氣泡的通常的洗淨液進行洗淨時，洗淨性能提升約9.4%。又，若根據式(2)，當洗淨液中的微細氣泡的數量為1.26×10^5個/ml時，亦即X=5.1的時候，可導出比起用不含微細氣泡的通常的洗淨液進行洗淨時，洗淨性能提升約約10%。此結果，可知讓洗淨液中至少含有1.0×10^5個/ml的微細氣泡，比起用不含微細氣泡的通常的洗淨液進行洗淨時，可提升約10%的洗淨性能。　　[0025] 於此，上述試驗，是使用圖5及圖6所示的微細氣泡產生器10生成微細氣泡水。微細氣泡產生器10，是例如合成樹脂製，且整體來說形成圓筒形狀。微細氣泡產生器10具有：節流部11、直線部12、以及突出部13。節流部11與直線部12，形成連續的1根流路。此時，節流部11側成為輸入側，直線部12側成為輸出側。　　[0026] 節流部11，是形成從微細氣泡產生器10的輸入側朝向輸出側內徑縮小的形狀，亦即，形成流路的剖面積，亦即，內徑連續性慢慢減少的所謂的圓錐形的錐形管狀。直線部12，是形成流路的剖面積，亦即，形成內徑不會變化的圓筒形的所謂直線管狀。　　[0027] 突出部13被設在直線部12的長邊方向的中途部分。突出部13，是局部縮小直線部12中水可通過的剖面積，讓微細氣泡在通過直線部12的液體中產生用的者。本實施形態的情況，在直線部12設有複數根，此時設有4根的突出部13。各突出部13，是由前端尖的棒狀的構件所構成，且從直線部12的內周面朝向該直線部12的剖面中的中心方向突出。各突出部13，是朝向直線部12的斷面的周向以互相等間隔分開的狀態被配置。　　[0028] 相對於微細氣泡產生器10若水從節流部11側流入，藉由從節流部11到直線部12縮窄流路剖面積，能藉由流體力學的所謂的文土里效應提高流速。而且，其高速流碰撞到突出部13，而使壓力急遽降低。藉此，可將溶存於水中的空氣大量析出作為微細的氣泡。　　[0029] 微細氣泡產生器10的性能的評價，是相對於微細氣泡產生器10讓水1次通過而生成微細氣泡水時，藉由量測其微細氣泡水的單位量，例如每1ml所含的微細氣泡的數量與每個其微細氣泡的粒子徑的個數分布來進行。此外，在本實施形態，將相對於微細氣泡產生器10僅讓水通過1次而生成微細氣泡水的情況成為的一次經過。　　[0030] 微細氣泡產生器10的性能的評價，是使用圖7這樣的量測系統20來進行。量測系統20具備連繫：微細氣泡產生器10、水槽21、循環泵22、水槽21以及循環泵22之間的配管23、24。微細氣泡產生器10被設在連接循環泵22的吐出側的配管23的中途部分，亦即，被設在從循環泵22到水槽21的配管23的中途部分。　　[0031] 在水槽21內貯留有預定量例如10L的超純水W。循環泵22，是讓超純水W在水槽21與循環泵22之間循環。此時，在微細氣泡產生器10，是藉由循環泵22的作用用0.1MPa的壓力施加超純水W。藉此，在通過微細氣泡產生器10的超純水W內析出微細氣泡成為微細氣泡水。而且，讓循環泵22驅動預定時間，讓超純水W循環而通過複數次微細氣泡產生器10，讓水槽21內的超純水W所含有的微細氣泡的數量大增。　　[0032] 本案發明者，是開始循環泵22的驅動起每預定的時間，例如每約10分鐘採集水槽21內的超純水W作為樣本。而且，本案發明者，是使用奈米粒子解析裝置(NANOSIGHT LM10、株式會社島津製作所製)利用奈米粒子追蹤法(也稱為粒子軌跡追蹤法)針對所採集的各樣本進行解析，藉此量測每1ml的微細氣泡的數量。　　[0033] 又，本案發明者，是從超純水W的循環流量與水槽21內的初期的貯留量算出超純水W的1次循環所需的時間。本實施形態的情況，1次循環所需的時間約1分鐘。而且，本案發明者，是從1次循環所需的時間、與樣本的採集時間到各樣本的採集時算出超純水W通過微細氣泡產生器10的次數。以下的說明，是將如此所算出的次數，亦即，讓循環泵22動作起到各樣本的採集時超純水W可能通過微細氣泡產生器10的次數稱為通過次數。　　[0034] 圖8，是對於各樣本，將通過次數作為橫軸，將微細氣泡的產生量作為縱軸予以圖示者。根據圖8的結果，可知通過次數亦即超純水W的循環次數愈增加，超純水W所含的微細氣泡的量也線性增加。亦即，可知超純水W通過微細氣泡產生器10的次數愈增加，愈濃縮超純水W中的微細氣泡。亦即，根據圖8的結果，可知微細氣泡產生器10的通過次數，亦即，超純水W的循環次數、與超純水W所含的微細氣泡的量具有一次線性方式的相關關係。　　[0035] 根據這個，若將讓水等的液體對微細氣泡產生器10通過1次時產生的微細氣泡的數量作為在微細氣泡產生器10的一次經過的性能，則其一次經過的性能，是如下進行求取。亦即，在循環開始後的任意的時點取樣水槽21內的超純水W，量測其樣本含有的微細氣泡的數量。而且，其量測的微細氣泡的數量除以樣本採集時的通過次數，亦即除以循環次數，算出微細氣泡產生器10的一次經過的性能。如此所算出的性能，亦即微細氣泡的數量，因為是暫時使濃度變濃之後，藉由通過次數被平均化，所以，可極力排除測量裝置的分解能力、使用的水所含的微細氣泡以外的微細粒子的影響，而可獲得精度佳的評價結果。　　[0036] 在本實施形態，若觀看圖8所示的結果，藉由10.6次的循環，能生成每1ml約1.48×10^7個粒子徑500nm以下的微細氣泡。又，藉由20.2次的循環，能生成每1ml約2.85×10^7個粒子徑500nm以下的微細氣泡。並且，藉由29.8次的循環，能生成每1ml約3.95×10^7個粒子徑500nm以下的微細氣泡。由該等的結果可知，藉由1次的通過，能生成每1ml 1.3～1.4×10^6個粒子徑500nm以下的微細氣泡。因此，可知本實施形態的洗淨方法所使用的微細氣泡產生器10，是施加動水壓0.1MPa可在一次經過生成每1ml含有1.3～1.4×10^6個左右的粒子徑500nm以下的微細氣泡之微細氣泡水。　　[0037] 又，在上述的洗淨性能的試驗，將自來水僅1次通過微細氣泡產生器10的微細氣泡水，亦即將一次經過所產生的微細氣泡水作為100%的微細氣泡水。在該100%的微細氣泡水，每1ml含有1.3×10^6左右的粒子徑500nm以下的微細氣泡。而且，不用自來水稀釋該100%的微細氣泡水而以原液使用，可得用於評價片1的含1.30×10^6個/ml的微細氣泡的洗淨液。又，用自來水將100%的微細氣泡水稀釋成50%，而可得用於評價片2的含6.50×10^5個/ml的微細氣泡的洗淨液。　　[0038] 又，用自來水將100%的微細氣泡水稀釋成25%，而可得用於評價片3的含3.25×10^5個/ml的微細氣泡的洗淨液。又，用自來水將100%的微細氣泡水稀釋成20%，而可得用於評價片4的含2.60×10^5個/ml的微細氣泡的洗淨液。並且，用自來水將100%的微細氣泡水稀釋成12.5%，而可得用於評價片5的含1.60×10^5個/ml的微細氣泡的洗淨液。　　[0039] 因此，用於評價片1～5的洗淨液，皆是每個微細氣泡的粒子徑的個數分布的峰值及比率相同。亦即，用於評價片1～5的洗淨液，是如上述皆是每個粒子徑500nm以下的微細氣泡的粒子徑的個數分布的最大峰值落在粒子徑100nm±30nm的範圍內。又，用於評價片1～5的洗淨液，是如上述皆是粒子徑100nm±30nm的範圍內的微細氣泡的數量占粒子徑500nm以下的微細氣泡的數量的比率成為50%以上。　　[0040] 於此，一般微細氣泡，是根據其氣泡的粒子徑如以下被分類。例如、粒子徑數μm至50μm左右，亦即，微米級的氣泡稱為微氣泡或微細氣泡。相對於此，粒子徑數百nm～數十nm以下，亦即，奈米級的氣泡被稱為奈米氣泡或超微細氣泡。　　[0041] 氣泡的粒子徑若成為數百nm～數十nm以下，因為比光的波長更小，所以，不能視認，液體成為透明。而且，奈米級的微細氣泡比起微米級以上的氣泡，總界面面積大，浮上速度慢，而具有內部壓力大等的特性。例如，粒子徑微米級的氣泡，因其浮力在液體中急速上升，而在液體表面破裂消滅，所以液體中的逗留時間比較短。另一方面，粒子徑奈米級的微細氣泡，因為浮力小，在液體中的逗留時間長。　　[0042] 在上述試驗，雖可知讓微細氣泡含在溶解界面活性劑的洗淨液中，比起用不含微細氣泡的通常的洗淨液進行洗淨時，可讓洗淨性能提升，可是這可假設為接下來這樣的原理。亦即，如圖9所示，界面活性劑32若成為某濃度以上，則界面活性劑32的疏水基彼此聚集，微膠粒化而形成界面活性劑32的聚合體33。該聚合體33的粒子徑設為數10nm。另一方面，例如粒子徑500nm以下的微細氣泡31因為其表面帶有負電荷而成為疏水性，所以，吸引界面活性劑32的疏水基。　　[0043] 因此，若將含有微膠粒化的界面活性劑32的聚合體33的洗劑混在含有粒子徑500nm以下的微細氣泡31的微細氣泡水，則聚合體33的能量的穩定狀態因微細氣泡31的表面的疏水性作用而潰散，如圖10所示，聚合體33潰散使界面活性劑32的各分子分散。而且，分散後的界面活性劑32的各分子，是藉由與具有界面活性劑32的疏水基和微細氣泡31的疏水性的表面的互相作用，吸附在微細氣泡31的表面。藉此，洗淨液所含的界面活性劑32被微細氣泡31所吸附而形成複合體34。　　[0044] 而且，如圖11所示，界面活性劑32與微細氣泡31的複合體34，是藉由微細氣泡31的浮力等在洗淨液中的廣大範圍擴散。因此，界面活性劑32的各分子接觸到例如附著在纖維35的皮脂污垢成分36等的機率大幅上升。而且，如圖12所示，若界面活性劑32與微細氣泡31的複合體34接近污垢成分36，則藉由污垢成分36的表面的疏水作用，使界面活性劑32與微細氣泡31的能量的穩定性瓦解，而產生微細氣泡31的變形、破裂。這樣一來，界面活性劑32的各分子分離附著在污垢成分36的同時，藉由微細氣泡31的破裂所致的衝擊等，使污垢成分36從纖維35浮起而容易剝離。　　[0045] 此時，界面活性劑32進入到因微細氣泡31的破裂的衝擊產生的污垢成分36與纖維35之間的間隙，而促進污垢成分36的乳化。而且，界面活性劑32吸入污垢成分36使其乳化，將污垢成分36從纖維35剝下，藉此發揮洗淨能力。如此，微細氣泡31會引出界面活性劑32的洗淨能力。　　[0046] 本實施形態的洗淨方法，是例如如圖14所示，可適用於洗衣機40。洗衣機40具備：外箱41、頂殼罩42、水槽43、旋轉槽44、攪拌器45、馬達46、注水裝置50、以及微細氣泡產生器10。洗衣機40，是旋轉槽44的旋轉軸面向垂直方向的所謂的縱軸型的洗衣機。此外，洗衣機不限於縱軸型，也可是旋轉槽的旋轉軸朝向水平或後方下降傾斜的橫軸型的所謂滾筒式洗衣機。　　[0047] 注水裝置50位在外箱41的上部，且被設在頂殼罩42的內部。注水裝置50具備有：第1給水閥51、第2給水閥52、第3給水閥53、連接口54、注水箱60、以及微細氣泡產生器10。亦即，洗衣機40中，微細氣泡產生器10，是作為注水裝置50的構成要素被安裝在注水裝置50。　　[0048] 連接口54，是經未圖示的軟管連接在自來水的龍頭等的給水源。連接口54的下游側，是分歧成複數條，並經由各給水閥51、52、53連接於注水箱60。本實施形態的情況，連接口54的下游側分歧成3個，並經由各給水閥51、52、53連接於注水箱60。　　[0049] 注水箱60，是承接從連接口54所供給的水，並將其承接的水從注水口61注水到水槽43及旋轉槽44內。注水箱60具有拉出式的洗劑盒62及柔軟劑盒子63。在洗劑盒62投入洗劑，在柔軟劑盒63投入柔軟劑。　　[0050] 在該構造，若打開第1給水閥51，從未圖示的龍頭供給到連接口54的自來水，是通過微細氣泡產生器10成為含微細氣泡的微細氣泡水，而被供給到注水箱60內的洗劑盒62。而且，通過微細氣泡產生器10被供給到洗劑盒62內的微細氣泡水流落到注水箱60的底部，之後，從注水口61被注水到水槽43及旋轉槽44內。此時，只要在洗劑盒62內有收容洗劑，則其洗劑被溶解在被供給到洗劑盒62內的微細氣泡水，而從注水口61流落到水槽43及旋轉槽44內。　　[0051] 同樣，若打開第2給水閥52，從未圖示的龍頭供給到連接口54的自來水，被供給到注水箱60內的洗劑盒62。而且，被供給到洗劑盒62內的自來水流落到注水箱60的底部，之後，從注水口61被注水到水槽43及旋轉槽44內。此時，只要在洗劑盒62內有收容洗劑，則其洗劑被溶解在被供給到洗劑盒62內的自來水，而從注水口61流落到水槽43及旋轉槽44內。　　[0052] 在本實施形態，打開第1給水閥51通過微細氣泡產生器10被供給的微細氣泡水、與打開第2給水閥52不通過微細氣泡產生器10地被供給的自來水，是在注水箱60內或水槽43內混合成為洗滌液。此時，洗衣機40，是調整第1給水閥51與第2給水閥52的開閉時間、時機，而可調整洗滌液中的微細氣泡水與自來水的混合比率。藉此，可任意調整洗滌液所含的微細氣泡的濃度。　　[0053] 又，若打開第3給水閥53，從未圖示的龍頭供給到連接口54的自來水，被供給到注水箱60內的柔軟劑盒63。而且，被供給到柔軟劑盒63內的自來水流落到注水箱60的底部，之後，從注水口61被注水到水槽43及旋轉槽44內。此時，只要在柔軟劑盒63內有收容柔軟劑，則其柔軟劑溶解在被供給到柔軟劑盒63內的自來水，而從注水口61流落到水槽43及旋轉槽44內。此外，在第3給水閥53的路徑進一步設置微細氣泡產生器10亦可。　　[0054] 而且，洗衣機40，是在水槽43及旋轉槽44內貯留洗滌液的狀態下，將馬達46驅動讓攪拌器45旋轉，來攪拌旋轉槽44內的洗滌物，進行洗滌動作。此時，在微細氣泡產生器10不是施加循環水而是施加自來水。亦即，在本實施形態，用於洗滌液的微細氣泡水，是讓自來水1次通過微細氣泡產生器10所產生者，亦即，一次經過所產生者。此外，微細氣泡產生器10在洗衣機40內也可被設在讓洗滌液循環的循環路徑的途中。據此，讓洗滌液複數次通過微細氣泡產生器10，可進一步提高洗滌液中的微細氣泡的濃度。　　[0055] 根據以上說明的實施形態所致的洗淨方法及洗衣機40，藉由將每1ml含有1×10^5個以上的粒子徑500nm以下的微細氣泡之微細氣泡水、與洗劑等的界面活性劑加以混合的洗淨液來洗淨洗淨對象。　　[0056] 據此，可將微細氣泡的數量及粒子徑作成適合界面活性劑所為的洗淨者。藉此，可充分顯現出微細氣泡與界面活性劑的互相作用所致的效果，其結果，比起用不含微細氣泡的洗淨液進行洗淨的情況，可使洗淨效率提升。　　[0057] 微細氣泡，是表面帶有負電荷。而且，微細氣泡的粒子徑愈變小，亦即，粒子徑愈變小，微細氣泡的表面的負電荷愈大。因此，微細氣泡，是粒子徑愈小愈容易吸附界面活性劑，其結果，容易形成與界面活性劑的集合體。然而，若微細氣泡的粒子徑變小，因為微細氣泡的表面積變小，所以，1個微細氣泡可附著的界面活性劑的量變少。　　[0058] 相對於此，用於本實施形態的洗淨方法及洗衣機40的微細氣泡水，是每個粒子徑500nm以下的微細氣泡的粒子徑的個數分布的最大峰值在粒子徑100nm±30nm的範圍內。據此，可使微細氣泡的電特性所致的界面活性劑的吸附能力、與微細氣泡的尺寸所致的界面活性劑的吸附量成為適當的狀態。其結果，可更有效果地顯現出微細氣泡與界面活性劑的互相作用所致的效果。　　[0059] 又，用於本實施形態的洗淨方法及洗衣機40的微細氣泡水，是設定成粒子徑100nm±30nm的範圍內的微細氣泡的數量占粒子徑500nm以下的微細氣泡的數量的比例成為50%以上。據此，也可使微細氣泡的電特性所致的界面活性劑的吸附能力、與微細氣泡的尺寸所致的界面活性劑的吸附量成為更適當的狀態。其結果，可更有效果地顯現出微細氣泡與界面活性劑的互相作用所致的效果。　　[0060] 又，實施形態所致的洗淨方法及洗衣機40所使用的微細氣泡水，是讓自來水1次通過微細氣泡產生器10所產生者。據此，比起讓自來水複數次通過微細氣泡產生器10而生成微細氣泡水者，可縮短微細氣泡水的供給時間。其結果，可縮短洗浄時間。　　[0061] 此外，上述實施形態的洗淨方法不限於洗衣機40，例如在餐具洗淨機、便器也可適用。　　使上述實施形態的洗淨方法適用於餐具洗淨機時，餐具洗淨機例如使用通過上述的微細氣泡產生器10所生成的微細氣泡水，來洗淨作為洗淨對象的餐具。此時，微細氣泡產生器10只要設在從水道將自來水供給到餐具洗淨機內用的給水路徑、讓被供給到餐具洗淨機內的水循環的循環路徑的途中即可。藉此，在餐具洗淨機內供給通過微細氣泡產生器10含微細氣泡的微細氣泡水。而且，在餐具洗淨機內，混合微細氣泡水與餐具用洗劑，而如上述可顯現出微細氣泡與界面活性劑的互相作用所致的效果。　　[0062] 又，使上述實施形態的洗淨方法適用於便器時，便器，是使用例如通過上述的微細氣泡產生器10所生成的微細氣泡水，來洗淨作為洗淨對象的便器內。此時，微細氣泡產生器10只要設在從水道將自來水供給到便器內用的給水路徑的途中即可。藉此，在便器內供給通過微細氣泡產生器10含微細氣泡的微細氣泡水。而且，在便器內，例如混合使用者清掃便器內時投入便器內的洗劑、與被供給到便器內的微細氣泡水，而如上述可有效果地顯現出微細氣泡與界面活性劑的互相作用所致的效果。此時，便器在便器內也可具備與微細氣泡水一起自動供給洗劑的機構。　　[0063] 以上，雖說明了本發明的一實施形態，可是該實施形態，是作為例子提示者，並沒有限定發明的範圍的意圖。該新規的實施形態可在其他的各式各樣的形態被實施，且在不脫離發明的要旨的範圍，可進行各種的的省略、置換、變更。該實施形態或其變形，是包含在發明的範圍、要旨，並且，包含在申請專利範圍的範圍所記載的發明與其均等的範圍。[0008] Hereinafter, an embodiment will be described with reference to the drawings. As shown in FIGS. 1 and 2, in this embodiment, microbubbled water containing 1 × 10 ^ 5 or more microbubbles having a particle diameter of 500nm or less per 1ml is more preferably 1 × 10 ^ per 1ml. 5 or more microbubble water having a particle diameter of 250 nm or less, and a washing solution mixed with a surfactant, that is, a washing method for washing a subject to be washed with a surfactant solution. In this embodiment, as the surfactant, a natural surfactant such as soap, a synthetic surfactant contained in a synthetic lotion, or the like can be used. Soaps and synthetic lotions can be in any of solid, liquid, and powder shapes. [0009] Micro-bubble water refers to water or a solution containing a large number of micro-bubbles with a diameter in the order of nanometers. That is, the microbubble water used in the cleaning method of the present embodiment contains a larger number of microbubbles with a particle diameter than that of tap water. The fine bubbles are generated, for example, by partially reducing the cross-sectional area of a flow path through which a liquid such as water flows, and rapidly depressurizing the liquid passing through the flow path, thereby precipitating dissolved air in the liquid. In addition, fine bubbles may be generated, for example, by mixing liquid such as water passing through a flow path with external air at high speed. [0010] The microbubble water used in the cleaning method of this embodiment is set to a diameter of microbubbles having a particle diameter of 500 nm or less as shown in FIG. 1, that is, the number of each particle diameter is distributed. The maximum peak value P1 falls within the range of particle diameter 100nm ± 70nm, more preferably falls within the range of particle diameter 100nm ± 50nm, and more desirably falls within the range of particle diameter 100nm ± 30nm. At this time, the maximum peak value P1 of the number distribution of the particle diameters of each microbubble appears near the particle diameter of 80 nm. [0011] Furthermore, the second peak P2 appears near the particle diameter of 140 nm, and the third peak P3 appears near the particle diameter of 110 nm. The fourth peak P4 appears near the particle diameter of 50 nm, and the fifth peak P5 appears near the particle diameter of 220 nm. In this embodiment, the number distribution of the diameters of the fine bubbles each having a particle diameter of 500 nm or less includes at least two peaks of the maximum peak value P1. At this time, the maximum peak value P1 and the third peak value P3 fall within the particle diameter of 100 nm ± 30nm range. [0012] The microbubble water used in the cleaning method of this embodiment is set such that the ratio of the number of microbubbles in the range of particle diameter 100nm ± 30nm to the number of microbubbles with particle diameter 500nm or less is 50% or more. In the case of this embodiment, as shown in FIG. 2, the fine bubble water contains 1.0 × 10 ^ 6 or more particles having a particle diameter of 500 nm or less per 1 ml, and in this case, contains about 1.25 × 10 ^ 6. Among them, the number of fine bubbles in the range of 100nm ± 30nm in particle diameter is about 8.25 × 10 ^ 5. Therefore, the ratio of the number of micro-bubbles in the range of 100 nm ± 30 nm of the micro-bubble water to the number of micro-bubbles having a particle diameter of 500 nm or less is about 66%. [0013] The inventor of the present invention verified the correlation between the number of microbubbles in the cleaning solution and the improvement rate of the cleaning performance with respect to sebum dirt using the microbubble water described above according to the following procedure. In addition, the micro-bubbles in this verification mean those having a particle diameter of 500 nm or less. [Preparation of pollution components of artificial sebum dirt] Dissolve oleic acid and glyceryl trioleate with chloroform as a solvent, and use a 50% solution containing 32.5% oleic acid and 17.5% glyceryl trioleate as a solvent Contaminating ingredients. [0015] (Artificial contamination and preparation of the sample) Let 40 ml of the above-mentioned solution of the contaminated components uniformly infiltrate into a 150 mm × 200 mm cotton cloth, and dry it naturally in a room for 24 hours, then cut the cloth piece into a 50 mm angle to obtain a stained cloth. In addition, a cotton cloth that had not been impregnated with a solution of a contaminating component was used as an original cloth. [0016] (Test method) One of the stained cloths was used as a reference sheet without cleaning. In addition, each of the six stained cloths was subjected to a cleaning solution containing 1.30 × 10 ^ 6 cells / ml of fine bubbles, a cleaning solution containing 6.5 × 10 ^ 5 cells / ml of fine bubbles, and 3.25 × 10 ^ 5. Washing liquid containing microbubbles per ml, washing liquid containing microbubbles at 2.6 × 10 ^ 5 per ml, washing liquid containing microbubbles at 1.60 × 10 ^ 5 per ml, and no microbubbles 6 types of washing liquid were washed, and then allowed to dry naturally in the room for 24 hours. Thereby, evaluation films 1 to 5 and comparative films were obtained. [0017] In addition, the same amount of lotion was dissolved in each washing solution. That is, the washing liquid for washing the comparative sheet is a commercially available lotion which dissolves a predetermined amount in tap water. In addition, the cleaning liquids for washing evaluation sheets 1 to 5 were those in which a predetermined amount of a commercially available lotion was dissolved in tap water mixed with the above-mentioned predetermined microbubbles, respectively. The dissolved amount of the lotion is, for example, a predetermined amount described in the instructions for use of the lotion. The washing of the comparative sheet and each of the evaluation sheets 1 to 5 was performed in the same operation content using a commercially available washing machine. [0018] Next, a violet oil, which is an oil-soluble pigment, was dissolved in a solvent with an ethanol aqueous solution having a mixing ratio of ethanol: water = 13: 7 to obtain a dyeing solution having a concentration of 0.664 mg / ml. Then, each of the evaluation pieces 1 to 5 and the comparison piece were immersed in the dyeing liquid for 15 minutes for dyeing, and then washed in the order of ethanol aqueous solution and water to wash away the excess dyeing liquid, and then the comparison piece and each evaluation piece 1 ～ 5 and the comparative tablets were allowed to dry naturally in the room for 24 hours. [0019] Next, a color difference measurement was used to measure the color difference between the original cloth and the reference sheet as the color difference before washing of each of the evaluation sheets 1 to 5 and the comparative sheet. The color difference between the original cloth and each of the evaluation sheets 1 to 5 and the comparison sheet was measured as the color difference after washing of each evaluation sheet 1 to 5 and the comparison sheet. Then, the cleansing degree of the evaluation sheets 1 to 5 and the comparative sheet was calculated according to the following formula (1), and the cleansing degrees of the respective evaluation sheets 1 to 5 were compared with the cleansing degree of the comparative sheet. Cleaning degree = 1- (color difference after washing) / (color difference before washing) ･･･ (1)) [0020] FIG. 3 shows the results of the test. In addition, the "mixing ratio" in FIG. 3 is to refine 100 microbubbles of microbubble water containing 1.30 × 10 ^ 6 microbubbles per 1ml, and tap water is mixed with 100% of the microbubbles to purify In the case of a washing liquid, the ratio of the fine bubble water to the whole washing liquid is shown. The “fine bubble concentration” in FIG. 3 indicates the number of fine bubbles contained per 1 ml of each cleaning solution. In addition, the "logarithmic value" in FIG. 3 represents the microbubble concentration of each washing liquid based on a common logarithm with a base of 10. [0021] According to the test results shown in FIG. 3, the evaluation sheet 1 was cleaned with a cleaning solution containing 1.30 × 10 ^ 6 cells / ml, compared with the cleaning solution containing no microbubbles. It can be seen that the washed comparative film improves the washing performance by 19.2%. In addition, in the evaluation sheet 2 which was cleaned with a cleaning solution containing 6.5 × 10 ^ 5 cells / ml, the improvement was seen in comparison with the comparative sheet which was cleaned with a cleaning solution containing no microbubbles. 13.7% cleaning performance. In addition, in the evaluation sheet 3 which was cleaned with a cleaning solution containing 3.25 × 10 ^ 5 cells / ml, the improvement was seen in comparison with a comparative sheet which was cleaned with a cleaning solution containing no microbubbles. 13.0% cleaning performance. [0022] In the evaluation sheet 4 that was cleaned with a cleaning solution containing 2.6 × 10 ^ 5 cells / ml, compared with the comparative sheet that was cleaned with a cleaning solution containing no microbubbles, It is seen that the cleaning performance is improved by 12.6%. Furthermore, in the evaluation sheet 5 that was cleaned with a cleaning solution containing 1.60 × 10 ^ 5 cells / ml, the improvement was seen in comparison with a comparative sheet that was cleaned with a cleaning solution containing no microbubbles. 10.7% cleaning performance. [0023] FIG. 4 shows the horizontal axis as the logarithmic number of microbubbles in the cleaning solution and the vertical axis as the cleaning performance improvement rate for each of the evaluation sheets 1 to 5 of FIG. 3. Further, in FIG. 4, when the horizontal axis, that is, the concentration of fine bubbles in the cleaning solution is taken as the X axis, and the vertical axis, that is, the improvement rate of the cleaning performance is taken as the Y axis, the least square method is used. The calculated approximate curve can be expressed by the following formula (2). The correlation coefficient R ^ 2 at this time is 0.908. Y = (5.02 × 10 ^ (-4)) X ^ (3.25) ･･･ (2) [0024] According to Fig. 4, formula (2), and its correlation coefficient R ^ 2, it can be known that The amount of fine bubbles increases greatly, and the cleaning performance is almost linear, that is, it rises almost linearly. That is, according to this test, it is found that there is a high correlation between the number of fine bubbles in the cleaning solution and the cleaning performance. Furthermore, if the number of fine air bubbles in the cleaning solution is 1.0 × 10 ^ 5 per ml according to formula (2), that is, when X = 5, it can be derived that compared with a normal washing without fine air bubbles When the cleaning solution is washed, the cleaning performance is improved by about 9.4%. In addition, according to formula (2), when the number of microbubbles in the cleaning solution is 1.26 × 10 ^ 5 / ml, that is, when X = 5.1, it can be derived that compared with ordinary washing without microbubbles, When the cleaning solution is washed, the cleaning performance is improved by about 10%. As a result, it was found that when the cleaning liquid contains at least 1.0 × 10 ^ 5 cells / ml of microbubbles, the cleaning performance can be improved by about 10% as compared with the case of washing with a normal cleaning liquid containing no microbubbles. [0025] Here, in the above-mentioned test, fine bubble water was generated using the fine bubble generator 10 shown in FIGS. 5 and 6. The micro-bubble generator 10 is made of, for example, a synthetic resin and has a cylindrical shape as a whole. The fine bubble generator 10 includes a throttle portion 11, a linear portion 12, and a protruding portion 13. The throttle section 11 and the straight section 12 form a continuous flow path. At this time, the throttle portion 11 side becomes the input side, and the linear portion 12 side becomes the output side. [0026] The throttle portion 11 is formed in a shape in which the inner diameter decreases from the input side toward the output side of the microbubble generator 10, that is, the cross-sectional area that forms the flow path, that is, the so-called inner diameter continuity gradually decreases. Conical cone-shaped tube. The straight portion 12 has a cross-sectional area that forms a flow path, that is, a so-called straight tubular shape that has a cylindrical shape that does not change in inner diameter. [0027] The protruding portion 13 is provided at a midway portion in the longitudinal direction of the linear portion 12. The protruding portion 13 is a person who partially reduces the cross-sectional area through which water can pass in the linear portion 12 and allows fine bubbles to be generated in the liquid passing through the linear portion 12. In the case of this embodiment, a plurality of linear portions 12 are provided, and in this case, four protruding portions 13 are provided. Each of the protruding portions 13 is formed of a rod-shaped member having a pointed tip, and protrudes from the inner peripheral surface of the linear portion 12 toward a center direction in a cross section of the linear portion 12. The protruding portions 13 are arranged in a state of being spaced apart from each other at equal intervals in the circumferential direction of the cross section of the linear portion 12. [0028] With respect to the micro-bubble generator 10, if water flows in from the throttle portion 11 side, the cross-sectional area of the flow path is narrowed from the throttle portion 11 to the linear portion 12, which can be improved by the so-called cultural effect of hydrodynamics. Flow rate. Moreover, the high-speed flow hits the protruding portion 13 and the pressure is drastically reduced. This allows a large amount of air dissolved in water to be precipitated as fine bubbles. [0029] The performance evaluation of the micro-bubble generator 10 is performed when the micro-bubble generator 10 passes water once to generate micro-bubble water, and the unit amount of the micro-bubble water is measured, for example, per 1 ml. The number of micro-bubbles and the number of particle diameters of each micro-bubble are distributed. In addition, in the present embodiment, the microbubble generator 10 passes water once to generate microbubble water in one pass. [0030] The performance of the micro-bubble generator 10 was evaluated using a measurement system 20 such as that shown in FIG. 7. The measurement system 20 includes a connection: the micro bubble generator 10, the water tank 21, the circulation pump 22, the water tank 21, and the pipes 23 and 24 between the circulation pump 22. The micro-bubble generator 10 is provided in the middle of the pipe 23 connected to the discharge side of the circulation pump 22, that is, in the middle of the pipe 23 from the circulation pump 22 to the water tank 21. [0031] A predetermined amount of ultrapure water W, for example, 10 L, is stored in the water tank 21. The circulation pump 22 circulates ultrapure water W between the water tank 21 and the circulation pump 22. At this time, in the fine bubble generator 10, ultrapure water W is applied with a pressure of 0.1 MPa by the action of the circulation pump 22. Thereby, fine bubbles are precipitated in the ultrapure water W passing through the fine bubble generator 10 to become fine bubble water. Then, the circulation pump 22 is driven for a predetermined time, and the ultrapure water W is circulated to pass through the microbubble generator 10 a plurality of times to increase the number of microbubbles contained in the ultrapure water W in the water tank 21. [0032] The inventor of this case collects the ultrapure water W in the water tank 21 as a sample every predetermined time from the start of the driving of the circulation pump 22, for example, every 10 minutes. In addition, the inventor of the present case uses a nano particle analysis device (NANOSIGHT LM10, manufactured by Shimadzu Corporation) to analyze each sample collected by the nano particle tracking method (also referred to as a particle trajectory tracking method), thereby measuring Measure the number of fine bubbles per 1 ml. [0033] The present inventor calculated the time required for one cycle of the ultrapure water W from the circulation flow rate of the ultrapure water W and the initial storage amount in the water tank 21. In the case of this embodiment, the time required for one cycle is about 1 minute. In addition, the inventor of the present invention calculated the number of times that the ultrapure water W passed through the microbubble generator 10 from the time required for one cycle and the sample collection time to the time of collection of each sample. The following description refers to the number of times calculated in this manner, that is, the number of times that the ultrapure water W may pass through the microbubble generator 10 when the circulation pump 22 is operated to collect each sample is referred to as the number of passes. [0034] FIG. 8 shows the number of passes for each sample as the horizontal axis and the amount of fine bubbles generated as the vertical axis. From the results of FIG. 8, it can be seen that the number of passes, that is, the number of cycles of the ultrapure water W increases, and the amount of fine bubbles contained in the ultrapure water W also linearly increases. That is, it can be seen that as the number of times that the ultrapure water W passes through the microbubble generator 10 increases, the microbubbles in the ultrapure water W are more concentrated. That is, from the results of FIG. 8, it can be seen that the number of passages of the microbubble generator 10, that is, the number of cycles of the ultrapure water W, and the amount of microbubbles contained in the ultrapure water W have a linear correlation. [0035] According to this, if the number of micro-bubbles generated when a liquid such as water is passed through the micro-bubble generator 10 once is taken as the performance of one pass in the micro-bubble generator 10, the performance of one pass is The calculation is performed as follows. That is, the ultrapure water W in the water tank 21 is sampled at an arbitrary time point after the start of the cycle, and the number of fine bubbles contained in the sample is measured. In addition, the number of measured micro-bubbles is divided by the number of passes at the time of sample collection, that is, divided by the number of cycles to calculate the one-pass performance of the micro-bubble generator 10. The performance calculated in this way, that is, the number of micro-bubbles, is obtained by averaging the number of passes after the concentration is temporarily thickened. Therefore, it is possible to exclude the micro-bubbles contained in the measuring device and the water used as much as possible. The effect of fine particles can be obtained, and a highly accurate evaluation result can be obtained. [0036] In this embodiment, if the result shown in FIG. 8 is viewed, micro-bubbles having a particle diameter of about 1.48 × 10 ^ 7 particles per 500 ml or less can be generated by 10.6 cycles. In addition, with 20.2 cycles, fine bubbles of about 2.85 × 10 ^ 7 particle diameters of 500 nm or less per 1 ml can be generated. In addition, with 29.8 cycles, fine bubbles of about 3.95 × 10 ^ 7 particle diameters of 500 nm or less per 1 ml can be generated. From these results, it can be seen that with one pass, fine bubbles of 1.3 to 1.4 × 10 ^ 6 particle diameters of 500 nm or less per 1 ml can be generated. Therefore, it can be seen that the micro-bubble generator 10 used in the cleaning method of this embodiment is capable of generating fine particles containing 1.3 to 1.4 × 10 ^ 6 particles with a diameter of 500 nm or less per 1 ml by applying a dynamic water pressure of 0.1 MPa in one pass. Fine bubbles of water. [0037] In the aforementioned cleaning performance test, tap water was passed through the micro-bubble water of the micro-bubble generator 10 only once, that is, the generated micro-bubble water was passed through once as 100% of the micro-bubble water. In this 100% microbubble water, each 1ml contains microbubbles having a particle diameter of 500 nm or less per about 1.3 × 10 ^ 6. Moreover, the 100% fine bubble water was not diluted with tap water and used as a stock solution, and a cleaning solution containing 1.30 × 10 ^ 6 cells / ml of fine bubbles for the evaluation sheet 1 was obtained. In addition, 100% of microbubble water was diluted to 50% with tap water, and a cleaning solution containing 6.50 × 10 ^ 5 cells / ml of microbubbles was obtained for evaluation sheet 2. [0038] In addition, 100% of microbubble water was diluted to 25% with tap water, and a cleaning solution containing 3.25 × 10 ^ 5 cells / ml of microbubbles was obtained for evaluation sheet 3. In addition, 100% of the microbubble water was diluted to 20% with tap water, and a cleaning solution containing 2.60 × 10 ^ 5 cells / ml of microbubbles for the evaluation sheet 4 was obtained. In addition, 100% of microbubble water was diluted to 12.5% with tap water, and a washing liquid containing 1.60 × 10 ^ 5 cells / ml of microbubbles was obtained for the evaluation sheet 5. [0039] Therefore, the cleaning liquids used for the evaluation sheets 1 to 5 all have the same peak value and ratio of the number distribution of the particle diameters of each microbubble. That is, the cleaning liquid used for the evaluation sheets 1 to 5 has the maximum peak value of the particle size distribution of the fine bubbles each having a particle diameter of 500 nm or less as described above, which falls within the range of the particle diameter of 100 nm ± 30 nm. In addition, as described above, the cleaning liquids used in the evaluation sheets 1 to 5 are such that the ratio of the number of fine bubbles in the particle diameter range of 100 nm ± 30 nm to the number of fine bubbles in the particle diameter range of 500 nm or more is 50% or more. [0040] Here, generally fine bubbles are classified as follows based on the particle diameter of the bubbles. For example, the particle diameter is about μm to about 50 μm, that is, micro-scale bubbles are called micro bubbles or micro bubbles. In contrast, a particle diameter of several hundreds to several tens of nm or less, that is, a nano-scale bubble is called a nano bubble or an ultrafine bubble. [0041] If the particle diameter of the air bubbles is several hundreds to several tens of nm, since the wavelength is smaller than the wavelength of light, it cannot be seen and the liquid becomes transparent. In addition, nano-scale micro-bubbles have characteristics such as larger total interface area, slower floating speed, and higher internal pressure than bubbles above the micron-scale. For example, bubbles with micron-sized particles have a dwelling force that rises rapidly in the liquid and is destroyed on the surface of the liquid, so the residence time in the liquid is relatively short. On the other hand, micro-bubbles with a particle size of nanometers have a long dwell time in a liquid because of their small buoyancy. [0042] In the above test, it was found that the inclusion of microbubbles in the cleaning solution in which the surfactant is dissolved can improve the cleaning performance as compared with the case of washing with a general cleaning solution containing no microbubbles, but this It can be assumed as the following principle. That is, as shown in FIG. 9, when the surfactant 32 becomes a certain concentration or more, the hydrophobic groups of the surfactant 32 aggregate with each other, and the micelles are granulated to form a polymer 33 of the surfactant 32. The particle diameter of this polymer 33 is several tens of nm. On the other hand, for example, the microbubbles 31 having a particle diameter of 500 nm or less are hydrophobic because of their negative charges on the surface, and therefore attract the hydrophobic groups of the surfactant 32. [0043] Therefore, if the lotion containing the polymer 33 of the micellized surfactant 32 is mixed with the microbubble water containing the microbubbles 31 having a particle diameter of 500 nm or less, the steady state of the energy of the polymer 33 is fine. The surface of the bubble 31 is dispersed by the hydrophobic action. As shown in FIG. 10, the polymer 33 is dispersed to disperse each molecule of the surfactant 32. The molecules of the dispersed surfactant 32 are adsorbed on the surface of the fine bubbles 31 by interaction with the hydrophobic group of the surfactant 32 and the hydrophobic surface of the fine bubbles 31. Thereby, the surfactant 32 contained in the washing liquid is adsorbed by the fine bubbles 31 to form a composite body 34. [0044] Furthermore, as shown in FIG. 11, the complex 34 of the surfactant 32 and the microbubbles 31 diffuses in a wide range in the washing liquid by the buoyancy of the microbubbles 31 and the like. Therefore, the probability that each molecule of the surfactant 32 is in contact with, for example, the sebum dirt component 36 adhering to the fibers 35 is increased. Further, as shown in FIG. 12, if the complex 34 of the surfactant 32 and the microbubbles 31 is close to the dirt component 36, the surface of the dirt component 36 is used to make the energy of the surfactant 32 and the microbubbles 31 energy-efficient. The stability disintegrates, and deformation and rupture of the fine bubbles 31 occur. In this way, the molecules of the surfactant 32 are separated and adhered to the dirt component 36, and the dirt component 36 is lifted from the fiber 35 by impact or the like caused by the rupture of the fine air bubbles 31, and is easily peeled off. [0045] At this time, the surfactant 32 enters the gap between the dirt component 36 and the fiber 35 due to the impact of the rupture of the fine bubbles 31, and promotes the emulsification of the dirt component 36. In addition, the surfactant 32 sucks and emulsifies the dirt component 36, and peels the dirt component 36 from the fiber 35, thereby exerting the cleaning ability. In this way, the fine bubbles 31 lead to the cleaning ability of the surfactant 32. [0046] As shown in FIG. 14, the washing method of this embodiment is applicable to the washing machine 40, for example. The washing machine 40 includes an outer box 41, a top cover 42, a water tank 43, a rotation tank 44, a stirrer 45, a motor 46, a water injection device 50, and a fine bubble generator 10. The washing machine 40 is a so-called vertical axis washing machine in which the rotation axis of the rotation tank 44 faces the vertical direction. In addition, the washing machine is not limited to a vertical axis type, and may be a so-called drum-type washing machine of a horizontal axis type in which the rotation axis of the rotation tank is inclined downward toward the horizontal or rear. [0047] The water injection device 50 is located at the upper part of the outer box 41 and is provided inside the top case cover 42. The water injection device 50 includes a first water supply valve 51, a second water supply valve 52, a third water supply valve 53, a connection port 54, a water injection tank 60, and a fine bubble generator 10. That is, in the washing machine 40, the micro bubble generator 10 is attached to the water injection device 50 as a component of the water injection device 50. [0048] The connection port 54 is a water supply source such as a faucet connected to tap water through a hose (not shown). The downstream side of the connection port 54 is branched into a plurality of lines, and is connected to the water injection tank 60 via the water supply valves 51, 52, and 53. In the present embodiment, the downstream side of the connection port 54 is divided into three, and is connected to the water injection tank 60 via the water supply valves 51, 52, 53. [0049] The water injection tank 60 receives water supplied from the connection port 54 and injects the received water from the water injection port 61 into the water tank 43 and the rotation tank 44. The water injection tank 60 includes a pull-out type detergent box 62 and a softener box 63. A lotion is put in the lotion box 62, and a softener is put in the softener box 63. [0050] In this structure, when the first water supply valve 51 is opened, the tap water supplied from the faucet (not shown) to the connection port 54 is converted into micro-bubble water containing micro-bubbles by the micro-bubble generator 10, and is supplied to the injection port. The lotion box 62 inside the water tank 60. Then, the micro-bubble water supplied into the lotion box 62 through the micro-bubble generator 10 flows to the bottom of the water injection tank 60, and is then filled with water from the water injection port 61 into the water tank 43 and the rotation tank 44. At this time, as long as the lotion is contained in the lotion box 62, the lotion is dissolved in the fine bubble water supplied into the lotion box 62, and flows into the water tank 43 and the rotation tank 44 from the water injection port 61. [0051] Similarly, when the second water supply valve 52 is opened, the tap water supplied from the faucet (not shown) to the connection port 54 is supplied to the detergent box 62 in the water injection tank 60. Then, the tap water supplied into the lotion box 62 flows to the bottom of the water injection tank 60, and thereafter, water is injected into the water tank 43 and the rotation tank 44 from the water injection port 61. At this time, as long as the lotion is contained in the lotion box 62, the lotion is dissolved in the tap water supplied into the lotion box 62, and flows into the water tank 43 and the rotation tank 44 from the water injection port 61. [0052] In this embodiment, the minute bubble water supplied by opening the first water supply valve 51 through the minute bubble generator 10 and the tap water supplied by opening the second water supply valve 52 without passing through the minute bubble generator 10 are injecting water. Washing liquid is mixed in the water tank 60 or the water tank 43. At this time, the washing machine 40 can adjust the opening and closing time and timing of the first water supply valve 51 and the second water supply valve 52, and can adjust the mixing ratio of fine bubble water and tap water in the washing liquid. Thereby, the concentration of the fine bubbles contained in the washing liquid can be arbitrarily adjusted. [0053] When the third water supply valve 53 is opened, the tap water supplied from the faucet (not shown) to the connection port 54 is supplied to the softener box 63 in the water injection tank 60. Then, the tap water supplied into the softener case 63 flows to the bottom of the water injection tank 60, and thereafter, water is injected into the water tank 43 and the rotation tank 44 from the water injection port 61. At this time, as long as the softener is contained in the softener box 63, the softener is dissolved in the tap water supplied into the softener box 63, and flows into the water tank 43 and the rotation tank 44 from the water injection port 61. In addition, a fine bubble generator 10 may be further provided in the path of the third water supply valve 53. [0054] Further, the washing machine 40 drives the motor 46 to rotate the agitator 45 while the washing liquid is stored in the water tank 43 and the rotating tank 44, and agitates the laundry in the rotating tank 44 to perform a washing operation. At this time, the micro-bubble generator 10 does not apply circulating water but tap water. That is, in the present embodiment, the microbubble water used in the washing liquid is generated by passing the tap water through the microbubble generator 10 once, that is, by passing the water once. The micro-bubble generator 10 may be provided in the washing machine 40 in the middle of a circulation path through which the washing liquid is circulated. This allows the washing liquid to pass through the micro-bubble generator 10 several times, thereby further increasing the concentration of the fine bubbles in the washing liquid. [0055] According to the cleaning method and the washing machine 40 according to the embodiment described above, the microbubble water containing 1 × 10 ^ 5 or more microbubbles with a particle diameter of 500 nm or less per 1 ml, and The surfactant is mixed with a cleaning solution to wash and clean the object. [0056] Based on this, the number of fine bubbles and the particle diameter can be made into a cleaner suitable for the surfactant. As a result, the effect due to the interaction between the fine bubbles and the surfactant can be fully exhibited. As a result, the washing efficiency can be improved as compared with the case of washing with a washing liquid containing no fine bubbles. [0057] Fine bubbles are negatively charged on the surface. The smaller the particle diameter of the fine bubbles, that is, the smaller the particle diameter, the larger the negative charge on the surface of the fine bubbles. Therefore, the finer bubbles are, the smaller the particle diameter, the easier it is to adsorb the surfactant, and as a result, it is easy to form an aggregate with the surfactant. However, when the particle diameter of the fine bubbles becomes smaller, the surface area of the fine bubbles becomes smaller, so that the amount of the surfactant that can be attached to one fine bubble becomes smaller. [0058] In contrast, the microbubble water used in the cleaning method and washing machine 40 of this embodiment has a maximum peak value of the particle size distribution of the microbubbles with a particle size of 500 nm or less per particle size at a particle size of 100nm ± 30nm. In the range. Accordingly, the adsorption capacity of the surfactant due to the electrical characteristics of the fine bubbles and the adsorption amount of the surfactant due to the size of the fine bubbles can be brought into an appropriate state. As a result, the effect due to the interaction between the fine bubbles and the surfactant can be more effectively exhibited. [0059] The microbubble water used in the cleaning method and the washing machine 40 of the present embodiment is a ratio of the number of microbubbles in a range of 100nm ± 30nm to the number of microbubbles having a particle diameter of 500nm or less. Become 50% or more. Accordingly, the adsorption capacity of the surfactant due to the electrical characteristics of the fine bubbles and the adsorption amount of the surfactant due to the size of the fine bubbles can be made more appropriate. As a result, the effect due to the interaction between the fine bubbles and the surfactant can be more effectively exhibited. [0060] Further, the cleaning method according to the embodiment and the fine bubble water used in the washing machine 40 are generated by passing the tap water through the fine bubble generator 10 once. As a result, the supply time of the fine bubble water can be shortened as compared with a case where the fine bubble water is generated by passing the tap water through the fine bubble generator 10 several times. As a result, the washing time can be shortened. [0061] In addition, the washing method of the above embodiment is not limited to the washing machine 40, and it can be applied to, for example, a dishwasher and a toilet. When the washing method of the above embodiment is applied to a dishwasher, the dishwasher uses, for example, the microbubble water generated by the microbubble generator 10 to wash the dishes to be washed. At this time, the micro-bubble generator 10 may be provided in the water supply path for supplying tap water from the water channel into the dishwasher and the circulation path for circulating the water supplied to the dishwasher. Thereby, the microbubble water containing microbubbles by the microbubble generator 10 is supplied in the dishwasher. In addition, in the dishwasher, the microbubble water and the dishwashing lotion are mixed, and as described above, the effect due to the interaction between the microbubbles and the surfactant can be exhibited. [0062] When the cleaning method according to the above embodiment is applied to a toilet, the toilet is cleaned in the toilet using the microbubble water generated by the microbubble generator 10 described above, for example. In this case, the micro-bubble generator 10 may be provided in the middle of a water supply path for supplying tap water from a water channel into a toilet. As a result, the microbubble water containing the microbubbles passing through the microbubble generator 10 is supplied in the toilet. Furthermore, in the toilet, for example, the lotion put into the toilet when the user cleans the toilet and the microbubble water supplied into the toilet are mixed, and the interaction between the microbubbles and the surfactant can be effectively displayed as described above The effect caused. In this case, the toilet may include a mechanism for automatically supplying the lotion together with the fine bubble water in the toilet. [0063] Although an embodiment of the present invention has been described above, this embodiment is provided as an example and is not intended to limit the scope of the invention. Embodiments of the new regulation can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the gist of the invention. This embodiment or its modification is included in the scope and gist of the invention, and includes the invention described in the scope of the patent application and its equivalent scope.

[0064][0064]

P1‧‧‧最大峰值P1‧‧‧maximum peak

P2‧‧‧第2個峰值P2‧‧‧2nd peak

P3‧‧‧第3個峰值P3‧‧‧3rd peak

P4‧‧‧第4個峰值P4‧‧‧4th peak

P5‧‧‧第5個峰值P5‧‧‧5th peak

10‧‧‧微細氣泡產生器10‧‧‧Fine bubble generator

13‧‧‧突出部13‧‧‧ protrusion

11‧‧‧節流部11‧‧‧ Throttling Department

12‧‧‧直線部12‧‧‧Straight line

20‧‧‧量測系統20‧‧‧Measurement System

24‧‧‧配管24‧‧‧Piping

23‧‧‧配管23‧‧‧Piping

22‧‧‧循環泵22‧‧‧Circulation pump

21‧‧‧水槽21‧‧‧Sink

W‧‧‧超純水W‧‧‧ Ultra pure water

31‧‧‧微細氣泡31‧‧‧fine bubbles

32‧‧‧界面活性劑32‧‧‧ Surfactant

33‧‧‧聚合體33‧‧‧ Polymer

34‧‧‧複合體34‧‧‧ complex

35‧‧‧纖維35‧‧‧ fiber

36‧‧‧污垢成分36‧‧‧ Dirt composition

50‧‧‧注水裝置50‧‧‧ water injection device

51‧‧‧第1給水閥51‧‧‧The first water supply valve

52‧‧‧第2給水閥52‧‧‧ 2nd water supply valve

54‧‧‧連接口54‧‧‧Connector

53‧‧‧第3給水閥53‧‧‧3rd water supply valve

40‧‧‧洗衣機40‧‧‧washing machine

42‧‧‧頂殼罩42‧‧‧Top Shell

60‧‧‧注水箱60‧‧‧ water injection tank

63‧‧‧柔軟劑盒63‧‧‧ Softener Box

43‧‧‧水槽43‧‧‧Sink

41‧‧‧外箱41‧‧‧Outer box

46‧‧‧馬達46‧‧‧ Motor

45‧‧‧攪拌器45‧‧‧ Stirrer

44‧‧‧旋轉槽44‧‧‧ rotating groove

61‧‧‧注水口61‧‧‧ water inlet

62‧‧‧洗劑盒62‧‧‧lotion box

[0007] 　　[圖1] 將在一實施形態所致的洗淨方法使用的微細氣泡水所含的每個微細氣泡的粒子徑的個數分布做成圖表表示的圖　　[圖2] 將在一實施形態所致的洗淨方法使用的微細氣泡水所含的微細氣泡的粒子徑與個數的關係做成表顯示的圖　　[圖3] 針對一實施形態所致的洗淨方法進行洗淨性能的評價結果做成表顯示的圖　　[圖4] 針對一實施形態所致的洗淨方法進行洗淨性能的評價結果做成圖表顯示的圖　　[圖5] 概略性地顯示一實施形態所致的洗淨方法中所使用的微細氣泡產生器的一例的剖視圖　　[圖6] 對於一實施形態所致的洗淨方法中所使用的微細氣泡產生器，沿著圖5的X6-X6線顯示的剖視圖　　[圖7] 概略性表示量測在一實施形態所致的洗淨方法使用的每個微細氣泡水的粒子徑的個數分布的量測系統的構成的圖　　[圖8] 將利用量測系統針對在一實施形態所致的洗淨方法使用的微細氣泡水進行量測的結果做成圖表顯示的圖　　[圖9] 概念表示一實施形態所致的洗淨方法中的微細氣泡與界面活性劑的互相作用的圖(之1) 　　[圖10] 概念表示一實施形態所致的洗淨方法中的微細氣泡與界面活性劑的互相作用的圖(之2) 　　[圖11] 概念表示一實施形態所致的洗淨方法中的微細氣泡與界面活性劑的互相作用的圖(之3) 　　[圖12] 概念表示一實施形態所致的洗淨方法中的微細氣泡與界面活性劑的互相作用的圖(之4) 　　[圖13] 概念表示一實施形態所致的洗淨方法中的微細氣泡與界面活性劑的互相作用的圖(之5) 　　[圖14] 表示一實施形態致的洗衣機的概略構造的圖[0007] [FIG. 1] A graph showing the distribution of the number of particle diameters of each micro-bubble contained in the micro-bubble water used in the washing method according to an embodiment is shown in a graph [FIG. 2] The relationship between the particle diameter and the number of micro-bubbles contained in the micro-bubble water used in the cleaning method according to the embodiment is shown in a table. [Fig. 3] The cleaning performance of the cleaning method according to one embodiment is performed. The evaluation results are shown in a table [Fig. 4] The results of the evaluation of the cleaning performance for a cleaning method according to an embodiment are shown in a graph [Fig. 5] The results of an embodiment are schematically shown Cross-sectional view of an example of a micro-bubble generator used in the cleaning method [FIG. 6] A cross-sectional view of the micro-bubble generator used in the cleaning method according to an embodiment, taken along the line X6-X6 in FIG. 5 [Fig. 7] A diagram schematically showing the configuration of a measurement system for measuring the number distribution of the particle diameter of each micro-bubble water used in the cleaning method according to an embodiment. [Fig. 8] A measurement system will be used Against The measurement result of the microbubble water used in the washing method according to the embodiment is made into a graph. [FIG. 9] Conceptually shows the relationship between the microbubbles and the surfactant in the washing method according to the embodiment. Interaction diagram (No. 1) [Fig. 10] Conceptual diagram showing the interaction between micro-bubbles and surfactants in a cleaning method according to an embodiment (No. 2) [Fig. 11] Conceptual diagram showing an embodiment Interaction between microbubbles and surfactants in the cleaning method (Part 3) [Fig. 12] A conceptual diagram showing the interaction between microbubbles and surfactants in the cleaning method according to an embodiment (No. 4) 图 [Fig. 13] A conceptual diagram showing the interaction between microbubbles and a surfactant in a washing method according to an embodiment (No. 5) [Fig. 14] A schematic structure of a washing machine according to an embodiment Figure

Claims

A washing method is to wash a washing object by using a microbubble water containing 1 × 10 ^ 5 or more microbubbles having a particle diameter of 500 nm or less per 1 ml, and a washing solution mixed with a surfactant.

The cleaning method according to item 1 of the scope of the patent application, wherein the micro-bubble water has a maximum peak value distribution of the number of micro-bubbles having a particle diameter of 500 nm or less per particle diameter in a range of 100 nm ± 30 nm.

The cleaning method according to item 1 of the patent application range, wherein the ratio of the number of micro-bubbles in the range of the particle diameter of 100 nm ± 30 nm to the number of micro-bubbles having a particle diameter of 50 nm or more is 50% or more .

The cleaning method according to item 1 of the scope of patent application, wherein the micro-bubble water is generated by passing the tap water through the micro-bubble generator once.

The cleaning method according to item 2 of the scope of the patent application, wherein the micro-bubble water is generated by passing the tap water through the micro-bubble generator once.

The cleaning method according to item 3 of the scope of the patent application, wherein the micro-bubble water is generated by passing tap water through the micro-bubble generator once.

A washing machine using the washing method described in any one of claims 1 to 6 of the scope of patent application.

A tableware washing machine using the washing method described in any one of claims 1 to 6 of the scope of patent application.

A toilet uses a washing method described in any one of claims 1 to 6 of the scope of patent application.